2008 Jeep Wrangler Owners Manual

• Player Defaults - Selecting this item will allow the user to scroll through the following items, and set defaults according to customer preference.

Menu Language — If Equipped Selecting this item will allow the user to choose the default startup DVD menu language (effective only if language supported by disc). If you want to select a language not listed, then scroll down and select ⬙other.⬙

Enter the four-digit country code using the TUNE/ SCROLL control knob to scroll up and down to select the number and then push to select. Audio Language — If Equipped Selecting this item allows you to choose a default audio language (effective only if the language is supported by the disc). You can select a language not listed by scrolling down and selecting ⬙other.⬙ Enter the country code using the TUNE/SCROLL control knob to scroll up and down to select the number and then push to select. Subtitle Language — If Equipped Selecting this item allows you to choose a default subtitle language (effective only if the language is supported by the disc). You can select a language not listed by scrolling down and selecting ⬙other.⬙ Enter the country code using the TUNE/SCROLL control knob to scroll up and down to select the number and then push to select.

UNDERSTANDING YOUR INSTRUMENT PANEL 241

Subtitles — If Equipped Selecting this item allows you to choose between subtitle Off or On. Audio DRC — If Equipped Selecting this item allows you to limit maximum audio dynamic range. The default is set to ⬙High,⬙ and under this setting, dialogues will play at 11 db higher than if the setting is ⬙Normal.⬙ Aspect Ratio — If Equipped Selecting this item allows you to choose between wide screen, pan scan, and letter box. AutoPlay — If Equipped When this is set to On and a DVD video is inserted, it will bypass the DVD menu screen and automatically play the movie. In some rare cases, the DVD player may not

242 UNDERSTANDING YOUR INSTRUMENT PANEL

auto-play the main title. In such cases, use the MENU button on the remote control to select desired title to play. NOTE: The user will have to set these defaults before loading a disc. If changes are made to these settings after a disc is loaded, changes will not be effective. Also, the defaults are effective only if the disc supports the customer-preferred settings. AM and FM Buttons Press the buttons to select AM or FM Modes. SET Button — To Set the Pushbutton Memory When you are receiving a station that you wish to commit to pushbutton memory, press the SET button. The symbol SET 1 will now show in the display window. Select the button (1-6) you wish to lock onto this station and press and release that button. If a button is not selected within five seconds after pressing the SET but- ton, the station will continue to play but will not be stored into pushbutton memory.

You may add a second station to each pushbutton by repeating the above procedure with this exception: Press the SET button twice and SET 2 will show in the display window. Each button can be set for SET 1 and SET 2 in both AM and FM. This allows a total of 12 AM, 12 FM, and 12 Satellite (if equipped) stations to be stored into pushbutton memory. The stations stored in SET 2
memory can be selected by pressing the pushbutton twice. Every time a preset button is used, a corresponding button number will display. Buttons 1 - 6
These buttons tune the radio to the stations that you commit to pushbutton memory {12 AM, 12 FM, and 12
Satellite (if equipped) stations}. DISC Button Pressing the DISC button will allow you to switch from AM/FM modes to Disc modes.

Operation Instructions - (DISC MODE for CD and MP3/WMA Audio Play, DVD-VIDEO) The radio DVD player and many DVD discs are coded by geographic region. These region codes must match in order for the disc to play. If the region code for the DVD disc does not match the region code for the radio DVD player, it will not play the disc. Customers may take their vehicle to an authorized dealer to change the region code of the player a maximum of five times.

CAUTION!

The radio may shut down during extremely hot conditions. When this occurs, the radio will indicate “Disc Hot” and shut off until a safe temperature is reached. This shutdown is necessary to protect the optics of the DVD player and other radio internal components.

UNDERSTANDING YOUR INSTRUMENT PANEL 243

NOTE: The ignition switch must be in the ON or ACC position to operate the radio. LOAD Button — Loading Compact Disc(s) Press the LOAD button and the pushbutton with the corresponding number (1-6) where the CD is being loaded. The radio will display PLEASE WAIT and prompt when to INSERT DISC. After the radio displays ⬙INSERT DISC,⬙ insert the CD into the player. Radio display will show ⬙LOADING DISC⬙ when the disc is loading and “READING DISC” when the radio is reading the disc.

CAUTION!

This CD player will accept 4–3/4 in (12 cm) discs only. The use of other sized discs may damage the CD player mechanism.

244 UNDERSTANDING YOUR INSTRUMENT PANEL

Eject Button — Ejecting Compact Disc(s)

Press the EJECT button and the pushbutton with the corresponding number (1-6) where the CD was loaded and the disc will unload and move to the entrance for easy removal. Radio display will show ⬙EJECTING DISC⬙ when the disc is being ejected and prompt the user to remove the disc. Press and hold the EJECT button for five seconds and all CDs will be ejected from the radio. The disc can be ejected with the radio and ignition OFF. SEEK Button (CD MODE) Press the right SEEK button for the next selection on the CD. Press the left SEEK button to return to the beginning of the current selection, or return to the beginning of the previous selection if the CD is within the first second of the current selection. Pressing and holding the SEEK button will allow you to scroll through the tracks faster in CD, MP3/MWA modes.

SCAN Button (CD MODE) Press the SCAN button to scan through each track on the CD currently playing. TIME Button (CD MODE) Press this button to change the display from a large CD playing time display to a small CD playing time display. RW/FF (CD MODE) Press and hold FF (Fast Forward) and the CD player will begin to fast forward until FF is released, or RW or another CD button is pressed. The RW (Rewind) button works in a similar manner. AM or FM Button (CD MODE) Switches the radio to the Radio mode.

Notes On Playing MP3/WMA Files The radio can play MP3/WMA files; however, acceptable MP3/WMA file recording media and formats are limited. When writing MP3/WMA files, pay attention to the following restrictions. Supported Media (Disc Types) The MP3/WMA file recording media supported by the radio are CDDA, CD-R, CD-RW, MP3,WMA, DVD Video, DVD-R, DVD-RW, DVD+R, DVD+RW, and CDDA+MP3. Supported Medium Formats (File Systems) The medium formats supported by the radio are ISO 9660
Level 1 and Level 2 and includes the Joliet extension. When reading discs recorded using formats other than ISO 9660 Level 1 and Level 2, the radio may fail to read files properly and may be unable to play the file nor- mally. UDF and Apple HFS formats are not supported.

UNDERSTANDING YOUR INSTRUMENT PANEL 245

The radio uses the following limits for file systems: • Maximum number of directory levels: 8
• Maximum number of files: 255
• Maximum number of folders: 100
• Maximum number of characters in file/folder names: • Level 1: 12 (including a separator ⬙.⬙ and a three- • Level 2: 31 (including a separator ⬙.⬙ and a three-

character extension)

character extension)

Multisession disc formats are supported by the radio. Multisession discs may contain combinations of normal CD audio tracks and computer files (including MP3/ WMA files). Discs created with an option such as ⬙keep disc open after writing⬙ are most likely multisession discs. The use of multisession for CD audio or MP3/ WMA playback may result in longer disc loading times.

246 UNDERSTANDING YOUR INSTRUMENT PANEL

If a disc contains multi-formats, such as CD audio and MP3/WMA tracks, the radio will only play the MP3/ WMA tracks on that disc. Supported MP3/WMA File Formats The radio will recognize only files with the *.MP3/WMA extension as MP3/WMA files. Non-MP3/WMA files named with the *.MP3/WMA extension may cause play- back problems. The radio is designed to recognize the file as an invalid MP3/WMA and will not play the file. When using the MP3/WMA encoder to compress audio data to an MP3/WMA file, the bit rate and sampling frequencies in the following table are supported. In addition, variable bit rates (VBR) are also supported. The majority of MP3/WMA files use a 44.1 kHz sampling rate and a 192, 160, 128, 96 or VBR bit rates.

MPEG Specifi-

cation

Sampling Fre- quency (kHz)

MPEG-1 Audio

Layer 3

48, 44.1, 32

MPEG-2 Audio

Layer 3

24, 22.05, 16

WMA Specifica-

tion

Sampling Fre- quency (kHz)

WMA

44.1 and 48

Bit Rate (kbps)

320, 256, 224, 192, 160, 128, 112, 96, 80, 64,

56, 48

160, 128, 144, 112, 96, 80, 64,

56, 48

Bit Rate (kbps)

48, 64, 96, 128, 160, 192 VBR

ID3 Tag information for artist, song title, and album title are supported for ID3 version 1 tags. ID3 version 2 is not supported by the radios. Playlist files are not supported. MP3 Pro files are not supported.

Playback of MP3/WMA Files When a medium containing MP3/WMA data is loaded, the radio checks all files on the medium. If the medium contains a lot of folders or files, the radio will take more time to start playing the MP3/WMA files. Loading times for playback of MP3/WMA files may be affected by the following: • Media - CD-RW media may take longer to load than • Medium formats - Multisession discs may take longer • Number of files and folders - Loading times will

to load than non-multisession discs

CD-R media

increase with more files and folders

To increase the speed of disc loading, it is recommended to use CD-R media and single-session discs. To create a single-session disc, enable the “Disc at Once” option before writing to the disc.

UNDERSTANDING YOUR INSTRUMENT PANEL 247

LIST Button (DISC Mode for MP3/WMA Play) Pressing the LIST button will bring up a list of all folders on the disc. Scrolling up or down the list is done by turning the TUNE/SCROLL control knob. Selecting a folder by pressing the TUNE/SCROLL control knob will begin playing the files contained in that folder (or the next folder in sequence if the selection does not contain playable files). The folder list will time out after five seconds. INFO Button (DISC Mode for MP3/WMA Play) Pressing the INFO button repeatedly will scroll through the following TAG information: Song Title, Artist, File Name, and Folder Name (if available). Press the INFO button once more to return to ⬙elapsed time⬙ priority mode. Press and hold the INFO button for three seconds or more and radio will display song titles for each file.

248 UNDERSTANDING YOUR INSTRUMENT PANEL

Press and hold the INFO button again for three seconds to return to ⬙elapsed time⬙ display. Operation Instructions - Auxiliary Mode The auxiliary (AUX) jack is an audio input jack, which allows the user to plug in a portable device such as an MP3/WMA player, cassette player, or microphone and utilize the vehicle’s audio system to amplify the source and play through the vehicle speakers. Pressing the AUX button will change the mode to auxil- iary device if the AUX jack is connected. NOTE: The AUX device must be turned on and the device’s volume set to the proper level. If the AUX audio is not loud enough, turn the device’s volume up. If the AUX audio sounds distorted, turn the device’s volume down. SEEK Button (Auxiliary Mode) No function.

SCAN Button (Auxiliary Mode) No function. EJECT Button (Auxiliary Mode)

No function.

TIME Button (Auxiliary Mode) Press the TIME button to change the display from elapsed playing time to time of day. The time of day will display for five seconds. RW/FF (Auxiliary Mode) No function. SET Button (Auxiliary Mode) No function.

Operating Instructions — Voice Recognition System (VR) (If Equipped) For the radio, refer to “Voice Recognition System (VR)” in Section 3. For UConnect威 “Voice Recognition System (VR),” refer to “Hands-Free Communication (UConnect威)” in Section 3. Operating Instructions - Hands-Free Phone (UConnect威) (If Equipped) Refer to “Hands-Free Communication (UConnect威)” in Section 3. Operating Instructions - Satellite Radio Mode (If Equipped) Refer to “Satellite Radio” in this section. Operating Instructions - Video Entertainment System (VES威) (If Equipped) Refer to separate “Video Entertainment System (VES威) Guide.”

UNDERSTANDING YOUR INSTRUMENT PANEL 249

Dolby威 Manufactured under license from Dolby威 Laboratories. ⬙Dolby威⬙ and the double-D symbol are trademarks of Dolby威 Laboratories. Macrovision This product incorporates copyright protection technol- ogy that is protected by U.S. patents and other intellec- tual property rights. Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only, unless otherwise authorized by Macrovision. Reverse engineering or disassembly is prohibited DTS™ ⬙DTS™⬙ and ⬙DTS™ 2.0⬙ are trademarks of Digital The- ater Systems, Inc.

250 UNDERSTANDING YOUR INSTRUMENT PANEL

SALES CODE RER — MULTIMEDIA SYSTEM — IF EQUIPPED

NOTE: The sales code is located on the lower right side of the unit’s faceplate. The RER Multimedia system contains a radio, Sirius Satellite Radio player, navigation system, CD/DVD player, USB port, 20-gigabyte hard drive (HDD), and the UConnect威 Hands-Free Bluetooth威 cellular system. If your vehicle is not equipped with UConnect威, NOTE: the unit will respond with a “Not Equipped With UConnect威” message when selecting controls related to this feature. A 6.5 in (16.5 cm) touch screen allows easy menu selec- tion, while the Advanced Voice Dialog System recognizes more than 1,000 words for audio, navigation, entertain- ment, and hands-free mobile phone use.

The satellite navigation capability combines a Global- Positioning System (GPS)-based navigation system with an integrated color screen to provide maps, turn identi- fication, selection menus, and instructions for selecting a variety of destinations and routes. A shared HDD for the navigation system, the database, and other radio features allows uploads of music and photos from CDs or through the USB port. The Gracenote database finds the artist, track, and title for the music. An auxiliary input jack permits passengers to listen to a portable MP3 player through the vehicle’s speakers. For vehicles equipped with the Vehicle Entertainment System (VES)威, separate audio outputs allow passengers to listen to the vehicle speakers while different audio tracks play through the system’s wireless headphones. This means rear-seat passengers can watch a DVD on the optional rear-seat entertainment system while the driver and front-seat passenger listen to the radio.

Other special features include direct tune, music type selections, traffic messaging (optional), easy store presets, parental lockout for VES威 (if equipped), backup camera display for vehicles equipped with a backup camera, and on some models, a dual display screen operation. Refer to your “Navigation User’s Manual” for detailed operating instructions. Operating Instructions — Satellite Radio Refer to your “Navigation User’s Manual” for detailed operating instructions. Operating Instructions — Hands-Free Communication (UConnect姞) (If Equipped) Refer to your “Navigation User’s Manual” for detailed operating instructions.

UNDERSTANDING YOUR INSTRUMENT PANEL 251

Clock Setting Procedure The GPS receiver in this system is synchronized to the time data being transmitted by the GPS satellites. The satellites’ clock is Greenwich Mean Time (GMT). This is the worldwide standard for time. This makes the sys- tem’s clock very accurate once the appropriate time zone and daylight savings information is set. Changing the Time Zone 1. Turn on the multimedia system. 2. Touch the screen where the time is displayed. The clock setting menu will appear on the screen. If the words “Time: GPS Time” are displayed at the top of the screen, proceed to Step 4. Otherwise, proceed to Step 3. 3. If the words “Time: User Clock” are displayed at the top of the screen, touch the bottom of the screen where the words “User Clock” are displayed. The GPS time setting menu will appear on the screen.

252 UNDERSTANDING YOUR INSTRUMENT PANEL

4. Touch the screen where the words “Set Time Zone” are displayed. The time zone selection menu will appear on the screen. 5. Select a time zone by touching the screen where your selection appears. If you do not see a time zone that you want to select, touch the screen where the word “Page” is displayed to view additional time zones in the menu. Changing Daylight Savings Time When selected, this feature will display the time of day in daylight savings time. Proceed as follows to change the current setting: 1. Turn on the multimedia system. 2. Touch the screen where the time is displayed. The clock setting menu will appear on the screen.

3. When this feature is on, a check mark will appear in the box next to the words “Daylight Savings.” Touch the screen where the words “Daylight Savings” are dis- played to change the current setting. Setting the User Clock If you wish to set the clock to a time different from the system clock, you can manually adjust the time by performing the following: 1. Turn on the multimedia system. 2. Touch the screen where the time is displayed. The clock setting menu will appear on the screen. If the words “Time: User Clock” are displayed at the top of the screen, proceed to Step 4. Otherwise, proceed to Step 3. 3. If the words “Time: GPS Time” are displayed at the top of the screen, touch the bottom of the screen where the words “GPS Time” are displayed. The user clock time setting menu will appear on the screen.

4. To move the hour forward, touch the screen where the word “Hour” with the arrow pointing upward is dis- played. To move the hour backward, touch the screen where the word “Hour” with the arrow pointing down- ward is displayed. 5. To move the minute forward, touch the screen where the word “Min” with the arrow pointing upward is displayed. To move the minute backward, touch the screen where the word “Min” with the arrow pointing downward is displayed. 6. To save the new time setting, touch the screen where the word “Save” is displayed. Show Time if Radio is Off When selected, this feature will display the time of day on the touch screen when the system is turned off. Proceed as follows to change the current setting: 1. Turn on the multimedia system.

UNDERSTANDING YOUR INSTRUMENT PANEL 253

2. Touch the screen where the time is displayed. The clock setting menu will appear on the screen. 3. When this feature is on, a check mark will appear in the box next to the words “Show Time if Radio is Off.” Touch the screen where the words “Show Time if Radio is Off” are displayed to change the current setting.

SATELLITE RADIO — IF EQUIPPED (REN/REQ/RER/RES RADIOS ONLY) Satellite radio uses direct satellite-to-receiver broadcast- ing technology to provide clear digital sound, coast to coast. The subscription service provider is Sirius Satellite Radio. This service offers over 130 channels of music, sports, news, entertainment, and programming for chil- dren, directly from its satellites and broadcasting studios. NOTE: Sirius service is not available in Hawaii and has limited coverage in Alaska.

254 UNDERSTANDING YOUR INSTRUMENT PANEL

System Activation Sirius Satellite Radio service is pre-activated, and you may begin listening immediately to the one year of audio service that is included with the factory-installed satellite radio system in your vehicle. Sirius will supply a wel- come kit that contains general information, including how to setup your on-line listening account at no addi- tional charge. For further information, call the toll-free number 888-539-7474, or visit the Sirius web site at www.sirius.com, or at www.siriuscanada.ca for Cana- dian residents. Electronic Serial Number/Sirius Identification Number (ESN/SID) Please have the following information available when calling: 1. The Electronic Serial Number/Sirius Identification Number (ESN/SID). 2. Your Vehicle Identification Number.

To access the ESN/SID, refer to the following steps: ESN/SID Access With RES/REQ Radios With the ignition switch in the ON/RUN or ACC posi- tion and the radio ON, press the SETUP button and scroll using the TUNE/SCROLL control knob until Sirius ID is selected. Press the TUNE/SCROLL control knob and the Sirius ID number will display. The Sirius ID number display will time out in two minutes. Press any button on the radio to exit this screen. ESN/SID Access With RER/REN Radios While in SAT mode, press the MENU button on the radio faceplate. Next touch the SUBSCRIPTION tab on the touch screen. All the ESNs that apply to your vehicle will be displayed.

Selecting Satellite Mode Press the SAT button until ⬙SAT⬙ appears in the display. A CD may remain in the radio while in the Satellite radio mode. Satellite Antenna To ensure optimum reception, do not place items on the roof around the rooftop antenna location or strap items to the trunk lid around the trunk lid antenna (if equipped). Metal objects placed within the line of sight of the antenna will cause decreased performance. Larger lug- gage items such as bikes should be placed as far rearward as possible, within the loading design of the rack. Do not place items directly on or above the antenna. Reception Quality Satellite reception may be interrupted due to one of the following reasons: • The vehicle is parked in an underground parking

structure or under a physical obstacle.

UNDERSTANDING YOUR INSTRUMENT PANEL 255

form of short audio mutes.

• Dense tree coverage may interrupt reception in the • Driving under wide bridges or along tall buildings can • Placing objects over or too close to the antenna can

cause intermittent reception.

cause signal blockage.

Operating Instructions - Satellite Mode

NOTE: The ignition switch must be in the ON or ACC position to operate the radio. SEEK Buttons Press and release the SEEK buttons to search for the next channel in Satellite mode. Press the right switch to seek up and the left switch to seek down. The radio will remain tuned to the new channel until you make another selection. Holding either button will bypass channels without stopping until you release it.

256 UNDERSTANDING YOUR INSTRUMENT PANEL

SCAN Button Pressing the SCAN button causes the tuner to search for the next channel, pausing for eight seconds before con- tinuing to the next. To stop the search, press the SCAN button a second time. INFO Button Pressing the INFO button will cycle between Artist, Song Title, and Composer (if available) information. Also, pressing and holding the INFO button for an additional three seconds will make the radio display the Song Title all of the time (press and hold again to return to normal display). RW/FF Pressing the RW (Rewind) or FF (Fast Forward) buttons causes the tuner to search for the next channel in the direction of the arrows.

TUNE Control (Rotary) Turn the rotary TUNE/SCROLL control knob clockwise to increase or counterclockwise to decrease the channel. MUSIC TYPE Button Pressing this button once will turn on the Music Type mode for five seconds. Pressing the MUSIC TYPE button or turning the TUNE/SCROLL control knob within five seconds will allow the program format type to be se- lected. Toggle the MUSIC TYPE button again to select the music type. By pressing the SEEK button when the Music Type function is active, the radio will be tuned to the next channel with the same selected Music Type name. If a preset button is activated while in the Music Type (Program Type) mode, the Music Type mode will be exited and the radio will tune to the preset channel.

SETUP Button Pressing the SETUP button allows you to select the following items: • Display Sirius ID number — Press the AUDIO/ SELECT button to display the Sirius ID number. This number is used to activate, deactivate, or change the Sirius subscription.

SET Button – To Set the Pushbutton Memory When you are receiving a channel that you wish to commit to pushbutton memory, press the SET button. The symbol SET 1 will now show in the display window. Select the button (1-6) you wish to lock onto this channel and press and release that button. If a button is not selected within five seconds after pressing the SET but- ton, the channel will continue to play but will not be stored into pushbutton memory.

UNDERSTANDING YOUR INSTRUMENT PANEL 257

You may add a second channel to each pushbutton by repeating the above procedure with this exception: Press the SET button twice and SET 2 will show in the display window. Each button can be set for SET 1 and SET 2. This allows a total of 12 Satellite channels to be stored into pushbutton memory. The channels stored in SET 2
memory can be selected by pressing the pushbutton twice. Every time a preset button is used, a corresponding button number will display. Buttons 1 - 6
These buttons tune the radio to the channels that you commit to pushbutton memory (12 Satellite stations).

Operating Instructions - Hands-Free Phone (If Equipped) Refer to “Hands-Free Communication (UConnect威)” in Section 3.

258 UNDERSTANDING YOUR INSTRUMENT PANEL

Operating Instructions - Video Entertainment System (VES姞) (If Equipped) Refer to separate “Video Entertainment System (VES威) Guide.”

CD/DVD DISC MAINTENANCE To keep the CD/DVD discs in good condition, take the following precautions: 1. Handle the disc by its edge; avoid touching the surface. 2. If the disc is stained, clean the surface with a soft cloth, wiping from center to edge. 3. Do not apply paper, paper CD labels, or tape to the disc; avoid scratching the disc. 4. Do not use solvents such as benzine, thinner, cleaners, or antistatic sprays. 5. Store the disc in its case after playing.

6. Do not expose the disc to direct sunlight. 7. Do not store the disc where temperatures may become too high. 8. Do not play discs that are small irregular shapes.

in size or have

RADIO OPERATION AND CELLULAR PHONES Under certain conditions, the cellular phone being ON in your vehicle can cause erratic or noisy performance from your radio. This condition may be lessened or eliminated by relocating the cellular phone antenna. This condition is not harmful to the radio. If your radio performance does not satisfactorily “clear” by the repositioning of the antenna, it is recommended that the radio volume be turned down or off during cellular phone operation.

CLIMATE CONTROLS

Mode Control

Manual Heater Only The controls for the heating/ventilation system in this vehicle consist of a series of rotary knobs. These comfort controls can be set to obtain desired interior conditions.

UNDERSTANDING YOUR INSTRUMENT PANEL 259

The mode control allows you to choose from several pat- terns of air distribution. You can select either a primary mode, as identified by the symbols, or a blend of two of these modes. The closer the control to a particular mode, the more air distribu- tion you receive from that

is

mode. Panel

Air is directed through the outlets in the instrument panel. These outlets can be adjusted to direct airflow.

Bi-Level

Air is directed through the panel and floor outlets.

260 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE: There is a difference in temperature between the upper and lower outlets for added comfort. The warmer air goes to the floor outlets. This feature gives improved comfort during sunny but cool conditions. Floor

Air is directed through the floor outlets and side window demist outlets with a small amount

through the defrost outlet. Mix

Air is directed through the floor, defrost and side window demist outlets. This setting works best in cold or snowy conditions that require extra heat at the windshield. This setting is good for maintaining comfort while reducing moisture on the windshield.

Defrost

Air is directed through the windshield and side window demist outlets. Use this mode with maxi- mum fan and temperature settings for best windshield and side window defrosting. Blower Control Use this control (center rotary knob) to regulate the amount of air forced through the system in any mode you select. The fan speed increases as you move the control to the right from the OFF position. Temperature Control Use this control (right rotary knob) to regulate the temperature of the air inside the passenger compartment. The blue area of the scale indicates cooler temperatures while the red area indicates warmer temperatures.

Manual Air Conditioning and Heating System — If Equipped The controls for the heating/air conditioning and venti- lation system in this vehicle consist of a series of rotary knobs. These comfort controls can be set to obtain desired interior conditions.

UNDERSTANDING YOUR INSTRUMENT PANEL 261

The instrument panel features four airflow registers. Two registers are located on the outer ends of the instrument panel and two are located in the center of the instrument panel. These registers can be closed to partially block airflow, and they can be adjusted to direct airflow where the occupant desires. Mode Control

The mode control allows you to choose from several pat- terns of air distribution. You can select either a primary mode, as identified by the symbols, or a blend of two of these modes. The closer the control to a particular mode, the more air distribu- tion you receive from that

is

mode.

262 UNDERSTANDING YOUR INSTRUMENT PANEL

Panel

Air is directed through the outlets in the instrument panel. These outlets can be adjusted to direct airflow.

Bi-Level

Air is directed through the panel and floor outlets.

NOTE: There is a difference in temperature between the upper and lower outlets for added comfort. The warmer air goes to the floor outlets. This feature gives improved comfort during sunny but cool conditions. Floor

Air is directed through the floor outlets and side window demist outlets with a small amount

through the defrost outlet. Mix

Air is directed through the floor, defrost and side window demist outlets. This setting works best in

cold or snowy conditions that require extra heat at the windshield. This setting is good for maintaining comfort while reducing moisture on the windshield. Defrost

Air is directed through the windshield and side window demist outlets. Use this mode with maxi- mum fan and temperature settings for best windshield and side window defrosting. NOTE: The air conditioning compressor operates in both Mix and Defrost or a blend of these modes even if the fan switch is not in the A/C position. This dehumidi- fies the air to help dry the windshield. To improve fuel economy, use these modes only when necessary.

Blower Control

Temperature Control

Use this control to regulate the amount of air forced through the system in any mode you select. The fan speed increases as you move the control to the right from the OFF position.

Use this control to regulate the temperature of the air inside the passenger compartment. The blue area of the scale indicates cooler temperatures while the red area indicates warmer temperatures.

UNDERSTANDING YOUR INSTRUMENT PANEL 263

If your air conditioning performance seems NOTE: lower than expected, check the front of the A/C con- denser: located in front of the radiator, for an accumula- tion of dirt or insects. Clean with a gentle water spray from behind the radiator and through the condenser. Fabric front fascia protectors may reduce air flow to the condenser, reducing air conditioning performance. Recirculation Control

Press this button to choose be- tween outside air intake or recir- culation of the air inside the ve- hicle. A lamp will illuminate when you are in “Recirculate” mode. Only use the “Recirculate” mode to temporarily block out any out- side odors, smoke, or dust and to cool the interior rapidly upon ini-

tial start up in very hot or humid weather.

264 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE: Continuous use of the “Recirculate” mode may make the inside air stuffy and window fogging may occur. Extended use of this mode is not recommended. In cold or damp weather, the use of the “Recirculate” mode will cause windows to fog on the inside because of moisture buildup inside the vehicle. For maximum de- fogging, select the Outside Air position. NOTE: The “Recirculate” mode will not operate in floor, mix or defrost modes.

Air Conditioning

Normal Operation

Press this button to engage the air conditioning. A lamp will illumi- nate when the air conditioning system is engaged. Once the air conditioning is engaged, use a combination of the mode control, fan speed control, and tempera- ture control to achieve your de- sired interior temperature.

NOTE: The air conditioning compressor will not engage until the engine has been running for about 10 seconds.

MAX A/C

For maximum cooling, select ei- ther the Panel or Bi-Level position using the mode control. Then, press the “A/C” and the “Recir- culate” buttons so that both lamps are illuminated, and set the tem- perature control to its coolest set- ting.

NOTE: • Recirculation Mode will not operate in floor, mix or • Refer to “Recirculation Control” in this section, for

defrost modes.

proper or extended use of this position.

UNDERSTANDING YOUR INSTRUMENT PANEL 265

Operating Tips

Window Fogging Windows will fog on the inside when the humidity inside the vehicle is high. This often occurs in mild or cool temperatures when it’s rainy or humid. In most cases turning on the air-conditioning (pressing the snowflake button) will clear the fog. Adjust the temperature control, air direction and blower speed to maintain comfort. As the temperature gets colder it may be necessary to direct air onto the windshield. Adjust the temperature control and blower speed to maintain comfort. Higher blower speeds will reduce fogging. Interior fogging on the windshield can be quickly removed by selecting the defrost mode.

266 UNDERSTANDING YOUR INSTRUMENT PANEL

Regular cleaning of the inside of the windows with a non-filming cleaning solution (vinegar and water works very well) will help prevent contaminates (cigarette smoke, perfumes, etc.) from sticking to the windows. Contaminates increase the rate of window fogging. Summer Operation Air conditioned vehicles must be protected with a high quality antifreeze coolant during summer to provide proper corrosion protection and to raise the boiling point of the coolant for protection against overheating. A 50 % concentration is recommended. Refer to Fluids and Genuine Parts in Section 7 for the proper coolant type. When using the air conditioner in extremely heavy traffic in hot weather especially when towing a trailer, addi- tional engine cooling may be required. If this situation is encountered, operate the transmission in a lower gear to increase engine RPM, coolant flow and fan speed. When stopped in heavy traffic, it may be necessary to shift into

NEUTRAL (N) and depress the accelerator slightly for fast idle operation to increase coolant flow and fan speed. Winter Operation When operating the system during the winter months, make sure the air intake, located directly in front of the windshield, is free of ice, slush, snow, or other obstruc- tions. Vacation Storage Anytime you store your vehicle, or keep it out of service (i.e., vacation) for two weeks or more, run the air conditioning system at idle for about five minutes in the fresh air and high blower setting. This will ensure adequate system lubrication to minimize the possibility of compressor damage when the system is started again.

STARTING AND OPERATING

CONTENTS

䡵 Starting Procedures . . . . . . . . . . . . . . . . . . . . . 271
▫ Manual Transmission . . . . . . . . . . . . . . . . . . 271
▫ Automatic Transmission . . . . . . . . . . . . . . . . 271
▫ Normal Starting . . . . . . . . . . . . . . . . . . . . . . 271
▫ Extreme Cold Weather (Below –20°F

Or –29°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
▫ If Engine Fails To Start . . . . . . . . . . . . . . . . . 273
▫ After Starting . . . . . . . . . . . . . . . . . . . . . . . . 274
䡵 Engine Block Heater — If Equipped . . . . . . . . . 275

䡵 Manual Transmission . . . . . . . . . . . . . . . . . . . . 275
▫ Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
▫ Downshifting . . . . . . . . . . . . . . . . . . . . . . . . 277
▫ Reverse Shifting . . . . . . . . . . . . . . . . . . . . . . 278
䡵 Automatic Transmission . . . . . . . . . . . . . . . . . . 279
▫ Shift Lock Manual Override . . . . . . . . . . . . . . 279
▫ Brake/Transmission Interlock System . . . . . . . 281
▫ Automatic Transmission With Overdrive . . . . . 281

268 STARTING AND OPERATING

䡵 Four–Wheel Drive Operation (Command-Trac™

Or Rock-Trac™) — If Equipped . . . . . . . . . . . . . 285
▫ Operating Instructions/Precautions . . . . . . . . . 285
▫ Shift Positions . . . . . . . . . . . . . . . . . . . . . . . . 287
▫ Shifting Procedure . . . . . . . . . . . . . . . . . . . . 288
䡵 Trac-Lok™ Rear Axle — If Equipped . . . . . . . . . 289
䡵 Axle Lock (Tru–Lok™) — Rubicon Models . . . . . 290
䡵 Rear Axle Lock — 4WD Non-Rubicon Models

(If Equipped) . . . . . . . . . . . . . . . . . . . . . . . . . . 291
䡵 Electronic Sway Bar Disconnect — If Equipped . . 292
䡵 On-Road Driving Tips . . . . . . . . . . . . . . . . . . . 294
䡵 Off-Road Driving Tips . . . . . . . . . . . . . . . . . . . 294
▫ Side Step Removal — If Equipped . . . . . . . . . 294
▫ The Basics Of Off-Road Driving . . . . . . . . . . . 296

▫ When To Use 4L (Low) Range . . . . . . . . . . . . 297
▫ Simultaneous Brake And Throttle Operation . . 297
▫ Driving In Snow, Mud And Sand . . . . . . . . . . 297
▫ Crossing Obstacles (Rocks And Other High

Points) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
▫ Hill Climbing . . . . . . . . . . . . . . . . . . . . . . . . 301
▫ Driving Through Water . . . . . . . . . . . . . . . . . 304
▫ After Driving Off-Road . . . . . . . . . . . . . . . . . 307
䡵 Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 308
䡵 Anti-Lock Brake System . . . . . . . . . . . . . . . . . . 309
䡵 Power Steering . . . . . . . . . . . . . . . . . . . . . . . . 311
䡵 Tire Safety Information . . . . . . . . . . . . . . . . . . . 313
▫ Tire Markings . . . . . . . . . . . . . . . . . . . . . . . . 313

▫ Tire Identification Number (TIN) . . . . . . . . . . 316
▫ Tire Loading And Tire Pressure . . . . . . . . . . . 317
䡵 Tires — General Information . . . . . . . . . . . . . . . 321
▫ Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . 321
▫ Tire Inflation Pressures . . . . . . . . . . . . . . . . . 322
▫ Tire Pressures For High-Speed Operation . . . . 324
▫ Radial-Ply Tires . . . . . . . . . . . . . . . . . . . . . . 325
▫ Tire Spinning . . . . . . . . . . . . . . . . . . . . . . . . 325
▫ Tread Wear Indicators . . . . . . . . . . . . . . . . . . 326
▫ Life Of Tire . . . . . . . . . . . . . . . . . . . . . . . . . 326
▫ Replacement Tires . . . . . . . . . . . . . . . . . . . . . 327
▫ Alignment And Balance . . . . . . . . . . . . . . . . . 328
䡵 Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

STARTING AND OPERATING 269

䡵 Tire Rotation Recommendations 䡵 Tire Pressure Monitor System (TPMS)

. . . . . . . . . . . . 329
. . . . . . . . 330
▫ Base System . . . . . . . . . . . . . . . . . . . . . . . . . 333
▫ General Information . . . . . . . . . . . . . . . . . . . 335
䡵 Fuel Requirements . . . . . . . . . . . . . . . . . . . . . . 336
▫ Reformulated Gasoline . . . . . . . . . . . . . . . . . 336
▫ Gasoline/Oxygenate Blends . . . . . . . . . . . . . . 337
▫ MMT In Gasoline . . . . . . . . . . . . . . . . . . . . . 337
▫ Materials Added To Fuel . . . . . . . . . . . . . . . . 338
▫ Fuel System Cautions . . . . . . . . . . . . . . . . . . 338
▫ Carbon Monoxide Warnings . . . . . . . . . . . . . . 339
. . . . . . . . . . . . . . . . . . . . . . . . . . 340
. . . . . . . . . . . . . . . 340

▫ Fuel Filler Cap (Gas Cap)

䡵 Adding Fuel

270 STARTING AND OPERATING

䡵 Vehicle Loading . . . . . . . . . . . . . . . . . . . . . . . . 342
▫ Certification Label . . . . . . . . . . . . . . . . . . . . . 342
䡵 Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . 344
▫ Common Towing Definitions . . . . . . . . . . . . . 345
▫ Trailer Hitch Classification . . . . . . . . . . . . . . . 348
▫ Trailer Towing Weights (Maximum Trailer

Weight Ratings)

. . . . . . . . . . . . . . . . . . . . . . 348

▫ Trailer And Trailer Tongue Weight . . . . . . . . . 352
▫ Towing Requirements . . . . . . . . . . . . . . . . . . 353
▫ Towing Tips . . . . . . . . . . . . . . . . . . . . . . . . . 357
䡵 Recreational Towing (Behind Motorhome, Etc.) . . 359
▫ Towing – 2WD Models . . . . . . . . . . . . . . . . . 359
▫ Towing – 4WD Models . . . . . . . . . . . . . . . . . 360

STARTING PROCEDURES Before starting your vehicle, adjust your seat, adjust both inside and outside mirrors, and fasten your seat belts.

WARNING!

Do not leave children or animals inside parked vehicles in hot weather. Interior heat buildup may cause serious injury or death.

Manual Transmission Apply the parking brake, place the shift lever in NEU- TRAL and depress the clutch pedal before starting ve- hicle. This vehicle is equipped with a clutch interlocking ignition system. It will not start unless the clutch pedal is pressed to the floor.

STARTING AND OPERATING 271

4WD Models Only In 4L mode, this vehicle will start regardless of whether or not the clutch pedal is pressed to the floor. This feature enhances off-road performance by allowing the vehicle to start when in 4L without having to depress the clutch pedal. The 4WD Indicator Light will illuminate when the transfer case has been shifted into this mode. Automatic Transmission Start the engine with the shift lever in the NEUTRAL or PARK position. Apply the brake before shifting to any driving range. Normal Starting

NOTE: Normal starting of either a cold or a warm engine is obtained without pumping or depressing the accelerator pedal.

272 STARTING AND OPERATING

Turn the ignition switch to the START position and release when the engine starts. If the engine fails to start within 10 seconds, turn the ignition switch to the LOCK position, wait 10 to 15 seconds, then repeat the normal starting procedure. Tip Start Feature — Automatic Transmission Only Turn the ignition switch to START position and release it as soon as the starter engages. The starter motor will continue to run, but will automatically disengage itself when the engine is running. If the engine fails to start, the starter will disengage automatically in 10 seconds. If this occurs, turn the ignition switch to the LOCK position, wait 10 to 15 seconds, then repeat the normal starting procedure.

Ignition Key Positions

Extreme Cold Weather (below –20°F or –29°C) To ensure reliable starting at these temperatures, use of an externally-powered electric engine block heater (avail- able from your authorized dealer) is recommended.

If Engine Fails to Start

WARNING!

• Never pour fuel or other flammable liquids into the throttle body air inlet opening in an attempt to start the vehicle. This could result in a flash fire causing serious personal injury. • Do not attempt to push or tow your vehicle to get it started. Vehicles equipped with an automatic transmission cannot be started this way. Unburned fuel could enter the catalytic converter and once the engine has started, ignite and damage the converter and vehicle. If the vehicle has a dis- charged battery, booster cables may be used to obtain a start from a booster battery or the battery in another vehicle. This type of start can be dan- gerous if done improperly. Refer to Section 6 of this manual for proper jump starting procedures and follow them carefully.

STARTING AND OPERATING 273

Without Tip Start (Manual Transmission Only) If the engine fails to start after you have followed the “Normal Starting” or “Extreme Cold Weather” proce- dures, it may be flooded. Push the accelerator pedal all the way to the floor and hold it there while cranking the engine. This should clear any excess fuel in case the engine is flooded.

CAUTION!

To prevent damage to the starter, do not crank the engine for more than 15 seconds at a time. Wait 10 to 15 seconds before trying again.

If the engine has been flooded, it may start to run, but not have enough power to continue running when the key is released. If this occurs, continue cranking with the accel- erator pedal pushed all the way to the floor. Release the accelerator pedal and the key once the engine is running smoothly.

274 STARTING AND OPERATING

If the engine shows no sign of starting after two 15
second periods of cranking with the accelerator pedal held to the floor, repeat the “Normal Starting” or “Ex- treme Cold Weather” procedures. With Tip Start (Automatic Transmission Only) If the engine fails to start after you have followed the “Normal Starting” or “Extreme Cold Weather” proce- dures, it may be flooded. To clear any excess fuel, push the accelerator pedal all the way to the floor and hold it. Then, turn the ignition switch to the START position and release it as soon as the starter engages. The starter motor will disengage automatically in 10 seconds. Once this occurs, release the accelerator pedal, turn the ignition switch to the LOCK position, wait 10 to 15 seconds, then repeat the normal starting procedure.

CAUTION!

To prevent damage to the starter, wait 10 to 15
seconds before trying again.

After Starting The idle speed will automatically decrease as the engine warms up.

WARNING!

Do not leave children or animals inside parked vehicles in hot weather. Interior heat buildup may cause serious injury or death.

ENGINE BLOCK HEATER — IF EQUIPPED The engine block heater warms engine coolant and permits quicker starts in cold weather. Connect the cord to a standard 110-115 Volt AC electrical outlet with a grounded, three wire extension cord. The engine block heater cord is found under the hood bundled in front of the battery tray.

WARNING!

Remember to disconnect the cord before driving. Damage to the 110-115 Volt AC electrical cord could cause electrocution.

Use the heater when temperatures below 0°F (-18°C) are expected to last for several days.

STARTING AND OPERATING 275

MANUAL TRANSMISSION

WARNING!

You or others could be injured if you leave the vehicle unattended without having the parking brake fully applied. The parking brake should al- ways be applied when the driver is not in the vehicle, especially on an incline.

CAUTION!

Never drive with your foot resting on the clutch pedal, or attempt to hold the vehicle on a hill with the clutch pedal partially engaged, as this will cause abnormal wear on the clutch.

276 STARTING AND OPERATING

NOTE: During cold weather, you may experience in- creased effort in shifting until the transmission fluid warms up. This is normal.

Shift Pattern

Shifting Fully depress the clutch pedal before shifting gears. As you release the clutch pedal, lightly depress the accelera- tor pedal. You should always use 1st gear when starting from a standing position if under heavy load or when pulling a trailer. Recommended Vehicle Shift Speeds To utilize your manual transmission efficiently for both fuel economy and performance, it should be upshifted as listed in recommended shift speed chart. Shift at the vehicle speeds listed for acceleration. When heavily loaded or pulling a trailer these recommended up-shift speeds may not apply.

Manual Transmission Shift Speeds in MPH (KM/H) En- gine 3.8L

2 to 3 3 to 4 4 to 5 5 to 6

Speeds

15 (24)

Accel.

1 to 2

24
(39) 19
(31)

34
(55) 27
(43)

47
(76) 37
(60)

56
(90) 41
(66)

Cruise

10 (16)

Downshifting

Moving from a high gear down to a lower gear is recommended to preserve brakes when driving down steep hills. In addition, downshifting at the right time provides better acceleration when you desire to resume speed. Downshift progressively. Do not skip gears to avoid overspeeding the engine and clutch.

STARTING AND OPERATING 277

WARNING!

Do not downshift for additional engine braking on a slippery surface. The drive wheels could lose their grip and the vehicle could skid.

CAUTION!

When descending a hill, be very careful to downshift one gear at a time to prevent overspeeding the engine which can cause valve damage, and/or clutch disc damage even if the clutch pedal is depressed.

278 STARTING AND OPERATING

Maximum Recommended Downshift Speeds

CAUTION!

Failure to follow the maximum recommended down- shifting speeds may cause the engine to overspeed and/or damage the clutch disc even if the clutch pedal is depressed.

Manual Transmission Downshift Speeds in MPH

(KM/H)

Gear Selec- tion Maxi- mum Speed

6 to 5

5 to 4

4 to 3

3 to 2

2 to 1

80 (129) 70 (113)

50 (81)

30 (48)

15 (24)

Reverse Shifting To shift into REVERSE, bring the vehicle to a complete stop. Depress the clutch and pause briefly to allow the gear train to stop rotating. Beginning from the NEUTRAL position, move the shift lever in one quick smooth motion straight across and into the REVERSE area (the driver will feel a firm “click” as the shifter passes the “knock-over”). Complete the shift by pulling the shift lever into REVERSE. The “knock-over” prevents the driver from accidentally entering the REVERSE shift area and warns the driver that they are about to shift the transmission into RE- VERSE. Due to this feature, a slow shift to REVERSE can be perceived as a high shift effort.

STARTING AND OPERATING 279

WARNING!

It is dangerous to move the shift lever out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your foot is firmly on the brake pedal.

AUTOMATIC TRANSMISSION

CAUTION!

a complete stop.

Damage to the transmission may occur if the follow- ing precautions are not observed: • Shift into PARK only after the vehicle has come to • Shift into or out of REVERSE only after the vehicle has come to a complete stop and the engine is at idle speed. • Do not shift from REVERSE, PARK, or NEUTRAL into any forward gear when the engine is above idle speed. • Before shifting into any gear, make sure your foot

is firmly on the brake pedal.

280 STARTING AND OPERATING

Shift Lock Manual Override Your vehicle may be equipped with a shift lock manual override. The manual override may be used in the event that the shift lever should fail to move from PARK with the key in the ON position and the brake pedal de- pressed. To operate the shift lock manual override, per- form the following steps: 1. Firmly set the parking brake. 2. Using a flat blade screwdriver, carefully remove the shift lock manual override cover which is located on the PRNDL bezel, above the PARK position. 3. Depress and maintain firm pressure on the brake pedal. 4. Using the screwdriver, reach into the manual override opening. Press and hold the shift lock lever down.

5. Depress the shifter release button and shift into NEU- TRAL. 6. The vehicle may then be started in NEUTRAL. Have your vehicle inspected by your local authorized dealer, if the shift lock manual override has been used.

Brake/Transmission Interlock System This system prevents you from moving the shift lever out of PARK and into any gear unless the brake pedal is pressed. This system is active only while the ignition switch is in the ON position. Always depress the brake pedal first, before moving the shift lever out of PARK. Automatic Transmission with Overdrive Shifting from DRIVE to PARK or REVERSE (or from P or R to D) should be done only after the accelerator pedal is released and the vehicle is stopped. Be sure to keep your foot on the brake when moving the shift lever between these gears.

STARTING AND OPERATING 281

Automatic Shift Controls

Gear Ranges DO NOT race the engine when shifting from PARK or NEUTRAL position into another gear range.

282 STARTING AND OPERATING

PARK This gear position supplements the parking brake by locking the transmission. The engine can be started in this range. Never use PARK while the vehicle is in motion. Apply the parking brake when leaving the vehicle in this range. Always apply parking brake first, then place the shift lever in the PARK position.

WARNING!

Never use the PARK position as a substitute for the parking brake. Always apply parking brake fully when parked to guard against vehicle movement and possible injury or damage.

WARNING!

It is dangerous to move the shift lever out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your right foot is firmly on the brake pedal.

REVERSE Use this range only after the vehicle has come to a complete stop. NEUTRAL Shift into NEUTRAL when the vehicle is standing for prolonged periods with the engine running. The engine may be started in this range. Set the parking brake if you must leave the vehicle.

STARTING AND OPERATING 283

When frequent transmission shifting occurs while using Overdrive, such as when operating the vehicle under heavy load conditions (for example, in hilly terrain, strong head winds, or trailer towing), turning off over- drive will improve performance and extend transmission life by reducing excessive shifting and heat buildup.

NOTE: Towing, coasting, or driving the vehicle for any other reason with the shift lever in NEUTRAL can result in severe transmission damage. Refer to “Recreational Towing” in Section 5 and “Towing a Disabled Vehicle” in Section 6 of this manual. OVERDRIVE For most city and highway driving. The transmission contains an electronically-controlled 4th gear Overdrive, and will automatically shift from DRIVE to OVERDRIVE if the following conditions are present: • The shift lever is in DRIVE. • The O/D OFF switch has not been activated. • Vehicle speed is above approximately 30 mph (48

km/h).

Overdrive Off Switch

284 STARTING AND OPERATING

Overdrive can be locked out by pressing the O/D OFF switch located on the center console. The O/D OFF indicator light (on the switch) will illuminate to show that the switch has been activated. When the indicator light is on, Overdrive is locked out. Pressing the switch a second time restores the Overdrive function. The lockout feature is useful when towing a trailer or carrying a heavy load. 2 (Second) For moderate grades and to assist braking on dry pave- ment or in mud and snow. Begins from a stop in low gear with automatic upshift to 2nd gear. Will not shift to 3rd. 1 (First) For hard pulling at low speeds in mud, sand, snow, or on steep grades. Begins and stays in low gear with no upshift. Provides engine compression braking at low speeds.

CAUTION!

• Before moving the shift lever out of PARK, you must turn the ignition from LOCK so the steering wheel and shift lever are released. Otherwise, damage to steering column or shift lever could result. • Never race the engine with the brakes on and the vehicle in gear, and never hold the vehicle on an incline without applying the brakes. These prac- tices can overheat and damage the transmission. • When “rocking” a stuck vehicle by moving be- tween DRIVE and REVERSE, do not spin the wheels faster than 15 mph (24 km/h), or drivetrain damage may result.

Torque Converter Clutch A feature designed to improve fuel economy has been added to the automatic transmission of this vehicle. A clutch within the torque converter engages automatically at calibrated speeds. This may result in a slightly differ- ent feeling or response during normal operation in high gear. When the vehicle speed drops or during accelera- tion, the clutch automatically and smoothly disengages.

FOUR–WHEEL DRIVE OPERATION (COMMAND-TRAC™ OR ROCK-TRAC™) — IF EQUIPPED

Operating Instructions/Precautions The transfer case provides four mode positions — 2H (Two-wheel drive high range), 4H (Four-wheel drive high range), N (Neutral), and 4L (Four-wheel drive low range).

STARTING AND OPERATING 285

4WD Shift Controls

The transfer case is intended to be driven in the 2H position for normal street and highway conditions such as hard-surfaced roads. In the event that additional traction is required, the transfer case 4H and 4L positions can be used to lock the front and rear driveshafts together, forcing the front and

286 STARTING AND OPERATING

rear wheels to rotate at the same speed. This is accom- plished by simply moving the shift lever to one of these positions. The 4H and 4L positions are intended for loose, slippery road surfaces only, and not intended for normal driving. Driving in the 4H and 4L positions on hard surfaced roads will cause increased tire wear and damage to the driveline components. The 4WD Indicator Light (located in the instrument cluster) alerts the driver that the vehicle is in four-wheel drive, and the front and rear driveshafts are locked together. The light will illuminate when the transfer case is shifted into the 4H position. NOTE: Do not attempt to shift when only the front or rear wheels are spinning. The transfer case is not equipped with a synchronizer, and the front and rear driveshaft speeds must be equal for a shift to take place. Shifting while only the front or rear wheels are spinning can cause damage to the transfer case.

When operating your vehicle in 4L, the engine speed will be approximately three times (four times for Rubicon models) that of the 2H or 4H positions at a given road speed. Take care not to overspeed the engine. Proper operation of four-wheel drive vehicles depends on tires of equal size, type, and circumference on each wheel. Any difference will adversely affect shifting and cause damage to the transfer case. Because four-wheel drive provides improved traction, there is a tendency to exceed safe turning and stopping speeds. Do not go faster than road conditions permit.

WARNING!

You or others could be injured if you leave the vehicle unattended with the transfer case in the N (Neutral) position without first fully engaging the parking brake. The transfer case N (Neutral) position disengages both the front and rear driveshaft from the powertrain, and will allow the vehicle to move regardless of the transmission position. The parking brake should always be applied when the driver is not in the vehicle.

STARTING AND OPERATING 287

Shift Positions

For additional information on the appropriate use of each transfer case mode position, see the information below: 2H Position This range is used for normal street and highway driving. Hard surfaced roads. 4H Position This range locks the front and rear driveshafts together, forcing the front and rear wheels to rotate at the same speed. This range (4H) provides additional traction for loose, slippery road surfaces and should not be used on wet or dry pavement. The 4WD Indicator Light (located in the instrument cluster) will illuminate when the transfer case is shifted into the 4H position.

288 STARTING AND OPERATING

N (Neutral) Position This range disengages the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle. Refer to “Recreational Towing” in Section 5 of this manual. 4L Position This range locks the front and rear driveshafts together, forcing the front and rear wheels to rotate at the same speed. This range (4L) provides additional traction and maximum pulling power for loose, slippery road surfaces only. Do not exceed 25 mph (40 km/h). The 4WD Indicator Light (located in the instrument cluster) will illuminate when the transfer case is shifted into the 4L position.

Shifting Procedure

2H to 4H or 4H to 2H Shifting between 2H and 4H can be made with the vehicle stopped or in motion. If the vehicle is in motion, shifts can be made up to 50 mph (80 km/h). With the vehicle in motion, the transfer case will engage/ disengage faster if you momentarily release the accelera- tor pedal after completing the shift. Apply a constant force when shifting the transfer case lever.

4H to 4L or 4L to 4H With the vehicle rolling at 2 to 3 mph (3 to 5 km/h), shift an automatic transmission into NEUTRAL (N), or de- press the clutch pedal on a manual transmission. While the vehicle is coasting at 2 to 3 mph (3 to 5 km/h), shift the transfer case lever firmly to the desired position. Do not pause with the transfer case in N (Neutral). NOTE: Shifting into or out of 4L is possible with the vehicle completely stopped, however, difficulty may oc- cur due to the mating teeth not being properly aligned. Several attempts may be required for clutch teeth align- ment and shift completion to occur. The preferred method is with the vehicle rolling at 2 to 3 mph (3 to 5
km/h). Avoid attempting to engage or disengage 4L with the vehicle moving faster than 2 to 3 mph (3 to 5 km/h).

STARTING AND OPERATING 289

WARNING!

Failure to engage a position completely can cause transfer case damage or loss of power and vehicle control. You could have an injury accident. Do not drive the vehicle unless the transfer case is fully engaged.

TRAC-LOK™ REAR AXLE — IF EQUIPPED The Trac-Lok™ rear axle provides a constant driving force to both rear wheels and reduces wheel spin caused by the loss of traction at one driving wheel. If traction differs between the two rear wheels, the differential automatically proportions the usable torque by providing more torque to the wheel that has traction.

AXLE LOCK (TRU–LOK™) — RUBICON MODELS The AXLE LOCK switch is located on the lower switch bank (below the climate controls).

290 STARTING AND OPERATING

Trac-Lok™ is especially helpful during slippery driving conditions. With both rear wheels on a slippery surface, a slight application of the accelerator will supply maxi- mum traction.

WARNING!

On vehicles equipped with a limited-slip differen- tial, never run the engine with one rear wheel off the ground. The vehicle may drive through the rear wheel remaining on the ground and cause you to lose control of your vehicle.

Axle Lock Switch

This feature will only activate when the following con- ditions are met: • Key in ignition, vehicle in 4L (Low) range.

• Vehicle speed should be 10 mph (16 km/h) or less. To activate the system, press the bottom of the AXLE LOCK switch once to lock the rear axle only (the Rear Axle Lock Indicator Light will illuminate), press the bottom of the switch again to lock the front axle (the Front Axle Lock Indicator Light will illuminate). When the rear axle is locked, pressing the switch again will lock or unlock the front axle. NOTE: The indicator lights will flash until the axles are fully locked or unlocked. To unlock the axles, press the top of the AXLE LOCK switch. Axle lock will disengage if the vehicle is taken out of 4L (Low) range, or the ignition switch is turned to the OFF position.

STARTING AND OPERATING 291

REAR AXLE LOCK — 4WD NON-RUBICON MODELS (IF EQUIPPED) The REAR AXLE LOCK switch is located on the lower switch bank (below the climate controls). This feature will only activate when the following con- ditions are met: • Key in ignition, vehicle in 4L (Low) range. • Vehicle speed should be 10 mph (16 km/h) or less. To activate the system, press the REAR AXLE LOCK switch down to lock the rear axle (the Rear Axle Lock Indicator Light will illuminate), press the switch up to unlock the rear axle. NOTE: The indicator lights will flash until the axle is fully locked or unlocked.

292 STARTING AND OPERATING

The rear axle lock will disengage if the vehicle is taken out of 4L (Low) range, or the ignition switch is turned to the OFF position.

ELECTRONIC SWAY BAR DISCONNECT — IF EQUIPPED Your vehicle may be equipped with an electronic discon- necting stabilizer/sway bar. This system allows greater front suspension travel in off-road situations. This system is controlled by the electronic control SWAY BAR switch located on the lower switch bank (below the climate controls).

Sway Bar Switch

Press the SWAY BAR switch to activate the system. Press the switch again to deactivate the system. The Sway Bar Indicator Light (located in the instrument cluster) will illuminate when the bar is disconnected. The Sway Bar Indicator Light will flash during activation transition, or

when activation conditions are not met. The stabilizer/ sway bar should remain in on-road mode during normal driving conditions.

WARNING!

Do not disconnect the stabilizer bar and drive on hard surfaced roads or at speeds above 18 mph (29
km/h), you may lose control of the vehicle, which could result in serious injury. The front stabilizer bar enhances vehicle stability and is necessary for main- taining control of the vehicle. The system monitors vehicle speed and will attempt to reconnect the stabilizer bar at speeds over 18 mph (29 km/h). This is indicated by a flashing or solid Sway Bar Indicator Light. Once vehicle speed is reduced below 14 mph (22 km/h), the system will once again attempt to return to off-road mode.

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To disconnect the stabilizer/sway bar, shift to either 4H or 4L (refer to “Four Wheel Drive Operation” in this section) and press the SWAY BAR switch to obtain the off-road position. The Sway Bar Indicator Light will flash until the stabilizer/sway bar has been fully disconnected. NOTE: The stabilizer/sway bar may be torque locked due to left and right suspension height differences. This condition is due to driving surface differences or vehicle loading. to disconnect/reconnect, the right and left halves of the bar must be aligned. This alignment may require that the vehicle be driven onto level ground or rocked from side to side. To return to on-road mode, press the SWAY BAR switch again.

the stabilizer/sway bar

In order

for

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WARNING!

If the stabilizer/sway bar will not return to on-road mode, vehicle stability is greatly reduced. Do not attempt to drive vehicle over 18 mph (29 km/h). Driving faster than 18 mph (29 km/h) may cause loss of control of the vehicle, which could result in serious injury. Contact your local authorized dealer for assistance.

ON-ROAD DRIVING TIPS Utility vehicles have higher ground clearance and a narrower track to make them capable of performing in a wide variety of off-road applications. Specific design characteristics give them a higher center of gravity than ordinary cars.

An advantage of the higher ground clearance is a better view of the road, allowing you to anticipate problems. They are not designed for cornering at the same speeds as conventional two-wheel drive vehicles any more than low-slung sports cars are designed to perform satisfacto- rily in off-road conditions. If at all possible, avoid sharp turns or abrupt maneuvers. As with other vehicles of this type, failure to operate this vehicle correctly may result in loss of control or vehicle rollover.

OFF-ROAD DRIVING TIPS

Side Step Removal — If Equipped

NOTE: Prior to off-road usage, the side steps should be removed to prevent damage. 1. Remove two nuts from bodyside.

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2. Remove one bolt from underside of vehicle.

3. Remove side step assembly.

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The Basics of Off-Road Driving You will encounter many types of terrain driving off- road. You should be familiar with the terrain and area before proceeding. There are many types of surface conditions: hard packed dirt, gravel, rocks, grass, sand, mud, snow and ice. Every surface has a different effect on your vehicle’s steering, handling and traction. Control- ling your vehicle is one of the keys to successful off-road driving, so always keep a firm grip on the steering wheel and maintain a good driving posture. Avoid sudden accelerations, turns or braking. In most cases there are no road signs, posted speed limits or signal lights. Therefore you will need to use your own good judgment on what is safe and what isn’t. When on a trail you should always be looking ahead for surface obstacles and changes in terrain. The key is to plan your future driving route while remembering what you are currently driving over.

CAUTION!

Never park your vehicle over dry grass or other combustible materials. The heat from your vehicle exhaust system could cause a fire.

WARNING!

Always wear your seat belt and firmly tie down cargo. Unsecured cargo can become projectiles in an off-road situation.

When To Use 4L (Low) Range When off-road driving, shift into 4L (Low) for additional traction and control on slippery or difficult terrain, ascending or descending steep hills, and to increase low speed pulling power. This range should be limited to extreme situations such as deep snow, mud, steep in- clines, or sand where additional low speed pulling power is needed. Vehicle speeds in excess of 25 mph (40 km/h) should be avoided when in 4L (Low) range. Simultaneous Brake And Throttle Operation Many off-road driving conditions require the simulta- neous use of the brake and throttle (two-footed driving). When climbing rocks, logs, or other stepped objects, using light brake pressure with light throttle will keep the vehicle from jerking or lurching. This technique is also used when you need to stop and restart a vehicle on a steep incline.

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Driving In Snow, Mud and Sand

Snow In heavy snow or for additional control and traction at slower speeds, shift the transmission into a low gear and the transfer case into 4L (Low) if necessary. Don’t shift to a lower gear than necessary to maintain headway. Over- revving the engine can spin the wheels and traction will be lost. If you start to slow to a stop, try turning your steering wheel no more than a 1/4 turn quickly back and forth, while still applying throttle. This will allow the tires to get a fresh ⬙bite⬙ and help maintain your momen- tum.

CAUTION!

On icy or slippery roads, do not downshift at high engine RPM or vehicle speeds, because engine brak- ing may cause skidding and loss of control.

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Mud Deep mud creates a great deal of suction around the tires and is very difficult to get through. You should use 2nd gear (manual transmission), or DRIVE (automatic trans- mission), with the transfer case in the 4L (Low) position to maintain your momentum. If you start to slow to a stop, try turning your steering wheel no more than a 1/4
turn quickly back and forth for additional traction. Mud holes pose an increased threat of vehicle damage and getting stuck. They are normally full of debris from previous vehicles getting stuck. As a good practice before entering any mud hole, get out and determine how deep it is, if there are any hidden obstacles and if the vehicle can be safely recovered if stuck. Sand Soft sand is very difficult to travel through with full tire pressure. When crossing soft sandy spots in a trail maintain your vehicle’s momentum and do not stop. The key to driving in soft sand is using the appropriate tire

pressure, accelerating slowly, avoiding abrupt maneu- vers and maintaining the vehicle’s momentum. If you are going to be driving on large soft sandy areas or dunes, reduce your tire pressure to a minimum of 15 psi (103
kPa) to allow for a greater tire surface area. Reduced tire pressure will drastically improve your traction and han- dling, while driving on the soft sand, but you must return the tires to normal air pressure before driving on pave- ment or other hard surfaces. Be sure you have a way to reinflate the tires prior to reducing the pressure.

CAUTION!

Reduced tire pressures may cause tire unseating and total loss of air pressure. To reduce the risk of tire unseating, while at a reduced tire pressure, reduce your speed and avoid sharp turns or abrupt maneuvers.

Crossing Obstacles (Rocks And Other High Points) While driving off-road, you will encounter many types of terrain. These varying types of terrain bring different types of obstacles. Before proceeding, review the path ahead to determine the correct approach and your ability to safely recover the vehicle if something goes wrong. Keeping a firm grip on the steering wheel, bring the vehicle to a complete stop and then inch the vehicle forward until it makes contact with the object. Apply the throttle lightly while holding a light brake pressure and ease the vehicle up and over the object.

WARNING!

Crossing obstacles can cause abrupt steering system loading which could cause you to loose control of your vehicle.

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Using A Spotter There are many times where it is hard to see the obstacle or determine the correct path. Determining the correct path can be extremely difficult when you are confronting many obstacles. In these cases have someone guide you over, through, or around the obstacle. Have the person stand a safe distance in front of you where they can see the obstacle, watch your tires and undercarriage, and guide you through. Crossing Large Rocks When approaching large rocks, choose a path which ensures you drive over the largest of them with your tires. This will lift your undercarriage over the obstacle. The tread of the tire is tougher and thicker than the side wall and is designed to take the abuse. Always look ahead and make every effort to cross the large rocks with your tires.

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CAUTION!

Never attempt to straddle a rock that is large enough to strike your axles or undercarriage.

CAUTION!

Never attempt to drive over a rock which is large enough to contact the door sills.

Crossing A Ravine, Gully, Ditch, Washout Or Rut When crossing a ravine, gully, ditch, washout or a large rut, the angled approach is the key to maintaining your vehicle’s mobility. Approach these obstacles at a 45- degree angle and let each tire go through the obstacle independently. You need to use caution when crossing large obstacles with steep sides. Do not attempt to cross

any large obstacle with steep sides at an angle great enough to put the vehicle at risk of a rollover. If you get caught in a rut, dig a small trench to the right or left at a 45-degree angle ahead of the front tires. Use the removed dirt to fill the rut ahead of the turnout you just created. You should now be able to drive out following the trench you just created at a 45-degree angle.

WARNING!

There is an increased risk of rollover when crossing an obstacle, at any angle, with steep sides.

Crossing Logs To cross a log, approach it at a slight angle (approxi- mately 10 to 15 degrees). This allows one front tire to be on top of the log while the other just starts to climb the log. While climbing the log, modulate your brake and

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accelerator to avoid spinning the log out from under your tires. Then ease the vehicle off the log using your brakes.

CAUTION!

CAUTION!

Winching or rocking the vehicle off hard objects increases the risk of underbody damage.

Do not attempted to cross a log with a greater diameter than the running ground clearance or the vehicle will become high centered.

Getting High-Centered If you get hung up or high-centered on an object, get out of the vehicle and try to determine what the vehicle is hung up on, where it is contacting the underbody and what is the best direction to recover the vehicle. Depend- ing on what you are in contact with, jack the vehicle up and place a few rocks under the tires so the weight is off of the high point when you let the vehicle down. You can also try rocking the vehicle or winching the vehicle off the object.

Hill Climbing Hill climbing requires good judgment and a good under- standing of your abilities and your vehicle’s limitations. Hills can cause serious problems. Some are just too steep to climb and should not be attempted. You should always feel confident with the vehicle and your abilities. You should always climb hills straight up and down. Never attempt to climb a hill on an angle. Before Climbing A Steep Hill As you approach a hill consider its grade or steepness. Determine if it is too steep. Look to see what the traction is on the hill side trail. Is the trail straight up and down? What is on top and the other side? Are there ruts, rocks,

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branches or other obstacles on the path? Can you safely recover the vehicle if something goes wrong? If every- thing looks good and you feel confident, shift the trans- mission into a lower gear with 4L (Low) engaged, and proceed with caution maintaining your momentum as you climb the hill. Driving Up Hill Once you have determined your ability to proceed and have shifted into the appropriate gear, line your vehicle up for the straightest possible run. Accelerate with an easy constant throttle and apply more power as you start up the hill. Do not race forward into a steep grade, the abrupt change of grade could cause you to lose control. If the front end begins to bounce, ease off the throttle slightly to bring all four tires back on the ground. As you approach the crest of the hill, ease off the throttle and slowly proceed over the top. If the wheels start to slip as you approach the crest of a hill, ease off the accelerator and maintain headway by turning the steering wheel no

more than a 1/4 turn quickly back and forth. This will provide a fresh ⬙bite⬙ into the surface and will usually provide enough traction to complete the climb. If you do not make it to the top, place the vehicle in REVERSE and back straight down the grade using engine resistance along with the vehicle brakes.

WARNING!

Never attempt to climb a hill at an angle or turn around on a steep grade. Driving across an incline increases the risk of a rollover, which may result in severe injury.

Driving Down Hill Before driving down a steep hill you need to determine if it is too steep for a safe descent. What is the surface traction? Is the grade too steep to maintain a slow controlled descent? Are there obstacles? Is it a straight

descent? Is there plenty of distance at the base of the hill to regain control if the vehicle descends to fast? If you feel confident in your ability to proceed then make sure you are in 4L (Low) and proceed with caution. Allow engine braking to control the descent and apply your brakes if necessary, but do not allow the tires to lock.

WARNING!

Do not descend a steep grade in NEUTRAL. Use vehicle brakes in conjunction with engine braking. Descending a grade too fast could cause you to lose control and be seriously injured.

Driving Across An Incline If at all possible avoid driving across an incline. If it is necessary, know your vehicle’s abilities. Driving across an incline places more weight on the downhill wheels, which increases the possibilities of a downhill slide or

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rollover. Make sure the surface has good traction with firm and stable soils. If possible transverse the incline at an angle heading slightly up or down.

WARNING!

Driving across an incline increases the risk of a rollover, which may result in severe injury.

If You Stall Or Begin To Lose Headway If you stall or begin to lose headway while climbing a steep hill, allow your vehicle to come to a stop and immediately apply the brake. Restart the engine and shift into REVERSE. Back slowly down the hill allowing engine braking to control the descent and apply your brakes if necessary, but do not allow the tires to lock.

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WARNING!

If the engine stalls or you lose headway or cannot make it to the top of a steep hill or grade, never attempt to turn around. To do so may result in tipping and rolling the vehicle, which may result in severe injury. Always back carefully straight down a hill in REVERSE gear. Never back down a hill in NEUTRAL using only the vehicle brakes. Never drive diagonally across a hill, always drive straight up or down.

Driving Through Water Extreme care should be taken crossing any type of water. Water crossings should be avoided if possible, and only be attempted when necessary in a safe responsible man- ner. You should only drive through areas which are designated and approved. You should tread lightly and

avoid damage to the environment. You should know your vehicles abilities and be able to recover it if some- thing goes wrong. You should never stop or shut a vehicle off when crossing deep water unless you ingested water into the engine air intake. If the engine stalls, do not attempt to restart it. Determine if it has ingested water first. The key to any crossing is low and slow. Shift into 1st gear (manual transmission), or DRIVE (automatic transmission), with the transfer case in the 4L (Low) position and proceed very slowly with a constant slow speed {3 to 5 mph (5 to 8 km/h) maximum} and light throttle. Keep the vehicle moving; do not try to accelerate through the crossing. After crossing any water higher than the bottom of the axle differentials, you should inspect all of the vehicle fluids for signs of water inges- tion.

CAUTION!

Water ingestion into the axles, transmission, transfer case, engine or vehicle interior can occur if you drive too fast or through too deep of water. Water can cause permanent damage to engine, driveline or other vehicle components and your brakes will be less effective once wet and/or muddy.

Before You Cross Any Type Of Water As you approach any type of water you need to deter- mine if you can cross it safely and responsibly. If neces- sary, get out and walk through the water or probe it with a stick. You need to be sure of its depth, approach angle, current and bottom condition. Be careful of murky or muddy waters, check for hidden obstacles. Make sure you will not be intruding on any wildlife and you can recover the vehicle if necessary. The key to a safe crossing

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is the water depth, current and bottom conditions. On soft bottoms the vehicle will sink in, effectively increas- ing the water level on the vehicle. Be sure to consider this when determining the depth and the ability to safely cross Crossing Puddles, Pools, Flooded Areas Or Other Standing Water Puddles, pools, flooded or other standing water areas normally contain murky or muddy waters. These water types normally contain hidden obstacles and make it difficult to determine an accurate water depth, approach angle, and bottom condition. Murky or muddy water holes are where you want to hook up tow straps prior to entering. This makes for a faster, cleaner and easier vehicle recovery. If you are able to determine you can safely cross, than proceed using the low and slow method.

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CAUTION!

Muddy waters can reduce the cooling system effec- tiveness by depositing debris onto the radiator.

Crossing Ditches, Streams, Shallow Rivers Or Other Flowing Water Flowing water can be extremely dangerous. Never at- tempt to cross a fast running stream or river even in shallow water. Fast moving water can easily push your vehicle downstream sweeping it out of control. Even in very shallow water, a high current can still wash the dirt out from around your tires putting you and your vehicle in jeopardy. There is still a high risk of personal injury and vehicle damage with slower water currents in depths greater than the vehicle’s running ground clearance. You should never attempt to cross flowing water which is deeper than the vehicle’s running ground clearance. Even

the slowest current can push the heaviest vehicle down- stream out of control if the water is deep enough to push on the large surface area of the vehicle’s body. Before you proceed determine the speed of the current, the water’s depth, approach angle, bottom condition and if there are any obstacles, then cross at an angle heading slightly upstream using the low and slow technique.

WARNING!

Never drive through fast moving deep water. It can push your vehicle downstream, sweeping it out of control. This could put you and your passengers at risk of injury or drowning.

After Driving Off-Road Off-road operation puts more stress on your vehicle than does most on-road driving. After going off-road it is always a good idea to check for damage. That way you can get any problems taken care of right away and have your vehicle ready when you need it. • Completely inspect the underbody of your vehicle. Check tires, body structure, steering, suspension, and exhaust system for damage. • Check threaded fasteners for looseness, particularly on the chassis, drivetrain components, steering, and sus- pension. Retighten them, if required, and torque to the values specified in the Service Manual. • Check for accumulations of plants or brush. These things could be a fire hazard. They might hide damage to fuel lines, brake hoses, axle pinion seals, and propeller shafts.

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• After extended operation in mud, sand, water, or similar dirty conditions, have the radiator, brake ro- tors, wheels, brake linings, and axle yokes inspected and cleaned as soon as possible.

WARNING!

Abrasive material in any part of the brakes may cause excessive wear or unpredictable braking. You might not have full braking power when you need it to prevent an accident. If you have been operating your vehicle in dirty conditions, get your brakes checked and cleaned as necessary.

• If you experience unusual vibration after driving in mud, slush or similar conditions, check the wheels for impacted material. Impacted material can cause a wheel imbalance and freeing the wheels of it will correct the situation.

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PARKING BRAKE To set the parking brake, pull the lever up as firmly as possible. When the parking brake is applied with the ignition ON, the Brake Warning Light in the instrument