2008 GMC Savana Owners Manual

CD player, use only CDs in good condition without any label, load one CD at a time, and keep the CD player and the loading slot free of foreign materials, liquids, and debris. If an error displays, see “CD Messages” later in this section. Z EJECT: Press to eject the CD. If the CD is not removed, after several seconds, the CD automatically pulls back into the player.

For the Six-Disc CD player, press and hold for two seconds to eject all discs.

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f (Tune): Turn to select tracks on the CD currently playing. © SEEK ¨: Press the left arrow to go to the start of the current track, if more than ten seconds have played. Press the right arrow to go to the next track. If either arrow is held or pressed multiple times, the player continues moving backward or forward through the CD. s REV (Fast Reverse): Press and hold to reverse playback quickly within a track. Sound is heard at a reduced volume. Release to resume playing the track. The elapsed time of the track displays. \ FWD (Fast Forward): Press and hold to advance playback quickly within a track. Sound is heard at a reduced volume. Release to resume playing the track. The elapsed time of the track displays.

RDM (Random): Tracks can be listened to in random, rather than sequential order, on one CD or all CDs in a six-disc CD player.

To use random on the Base Radio with Single CD player, do the following: • Press the RDM button to play tracks from a CD in

random order. The random icon displays. Press again to turn off random play. The random icon disappears from the display.

To use random on an Uplevel Radio with a Single CD player, do the following: 1. Press the CD/AUX button, insert a disc partway into

the slot of the CD player. A RDM label displays.

2. To play the tracks in random order, press the

pushbutton positioned under the RDM label until Random Current Disc displays. Press the pushbutton again to turn off random play.

To use random on a Radio with a Six-Disc CD player, do the following: 1. Press the CD/AUX button, press and hold ^.

A beep sounds and Load All Discs displays. Insert one or more discs partway into the slot of the CD player.

2. To play tracks from all CDs loaded in random order,

press the pushbutton positioned under the RDM label until Randomize All Discs displays. Press the same pushbutton again to turn off random play.

RPT (Repeat (Base Radio with CD): With the repeat setting, one track can be repeated. To repeat the track you are listening to, press and release the RPT button. An arrow symbol displays. Press RPT again to turn off repeat play. 4 (Information) (Base Radio with CD): Press to switch the display between the track number, elapsed time of the track, and the time. When the ignition is off, press to display the time.

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BAND: Press to listen to the radio when a CD is playing. The CD remains inside the radio for future listening.

CD/AUX (CD/Auxiliary): Press to play a CD when listening to the radio. The CD icon and a message showing the disc and/or track number displays when a CD is in the player. Press again and the system automatically searches for an auxiliary input device, such as a portable audio player. If a portable audio player is not connected, “No Input Device Found” may display. Playing an MP3 CD-R or CD-RW Disc Your radio with a Single CD player or a Six-Disc CD player has the capability of playing an MP3 CD-R or CD-RW disc. For more information on how to play an MP3 CD-R or CD-RW disc, see “Using an MP3” in the index. CD Messages

REMOVE/CHECK DISC: Radios with a Single CD player or radios with a Six-Disc player displays CHECK DISC and/or ejects the CD if an error occurs.

ERR (Error): If this message displays and/or the CD comes out, it could be for one of the following reasons: • It is very hot. When the temperature returns to

normal, the CD should play.

• You are driving on a very rough road. When the

road becomes smoother, the CD should play.

• The CD is dirty, scratched, wet, or upside down. • The air is very humid. If so, wait about an hour and

try again.

• There could have been a problem while burning the

CD-R or CD-RW.

• The label could be caught in the CD player.

NO: This message displays if the EJECT or CD/AUX buttons are pressed and a CD has not been inserted into the player. If the CD is not playing correctly, for any other reason, try a known good CD. If any error occurs repeatedly or if an error cannot be corrected, contact your dealer/retailer. If the radio displays an error message, write it down and provide it to your dealer/retailer while reporting the problem.

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Using the Auxiliary Input Jack Your radio system has an auxiliary input jack located on the lower right side of the faceplate. This is not an audio output; do not plug the headphone set into the front auxiliary input jack. An external audio device such as an iPod, laptop computer, MP3 player, CD changer, etc. can be connected to the auxiliary input jack for use as another source for audio listening. Drivers are encouraged to set up any auxiliary device while the vehicle is in PARK (P). See Defensive Driving on page 4-2 for more information on driver distraction. To use a portable audio player, connect a 3.5 mm (1/8 inch) cable to the radio’s front auxiliary input jack. When a device is connected, press the radio CD/AUX button to begin playing audio from the device over the vehicle speakers. O (Power/Volume): Turn clockwise or counterclockwise to increase or decrease the volume of the portable player. You might need to do additional volume adjustments from the portable device if the volume is not loud or soft enough.

BAND: Press to listen to the radio while a portable audio device is playing. The portable audio device continues playing, so you might want to stop it or turn it off.

CD/AUX (CD/Auxiliary): Press to play a CD while a portable audio device is playing. Press again and the system begins playing audio from the connected portable audio player. If a portable audio player is not connected, the message No Aux Input Device displays.

Using an MP3
MP3 CD-R or CD-RW Disc The radio plays MP3 files that were recorded on a CD-R or CD-RW disc. The files can be recorded with the following fixed bit rates: 32 kbps, 40 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 160 kbps, 192 kbps, 224 kbps, 256 kbps, and 320 kbps or a variable bit rate. Song title, artist name, and album are available for display by the radio when recorded using ID3 tags version 1 and 2. Compressed Audio The radio also plays discs that contain both uncompressed CD audio (.CDA files) and MP3 files. By default the radio shows the MP3 label on the left side of the screen but plays both file formats in the order in which they were recorded to the disc.

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MP3 Format If you burn your own MP3 disc on a personal computer: • Make sure the MP3 files are recorded on a CD-R

or CD-RW disc.

• Do not mix standard audio and MP3 files on

one disc.

• The CD player is able to read and play a maximum of 50 folders, 15 playlists, and 512 folders and files. • Create a folder structure that makes it easy to find

songs while driving. Organize songs by albums using one folder for each album. Each folder or album should contain 18 songs or less.

• Avoid subfolders. The system can support up to

eight subfolders deep, however, keep the total number of folders to a minimum in order to reduce the complexity and confusion in trying to locate a particular folder during playback.

• Make sure playlists have a .mp3 or .wpl extension

(other file extensions might not work).

• Minimize the length of the file, folder, or playlist names. Long file, folder, or playlist names, or a combination of a large number of files and folders, or playlists could cause the player to be unable to play up to the maximum number of files, folders, playlists, or sessions. If you wish to play a large number of files, folders, playlists or sessions, minimize the length of the file, folder, or playlist name. Long names also take up more space on the display, potentially getting cut off.

• Finalize the audio disc before you burn it. Trying to add music to an existing disc could cause the disc not to function in the player.

Playlists can be changed by using the S c (previous) and c T (next) folder buttons, the f knob, or the © SEEK ¨ arrows. You can also play an MP3
CD-R or CD-RW that was recorded using no file folders. If a CD-R or CD-RW contains more than the maximum of 50 folders, 15 playlists, and 512 folders and files, the player lets you access and navigate up to the maximum, but all items over the maximum are not accessible.

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Root Directory The root directory of the CD-R or CD-RW is treated as a folder. If the root directory has compressed audio files, the directory displays as the CD label. All files contained directly under the root directory are accessed prior to any root directory folders. However, playlists (Px) are always accessed before root folders or files. If a disc contains both uncompressed CD audio (.CDA) and MP3 files, a folder under the root directory called CD accesses all of the CD audio tracks on the disc. Empty Directory or Folder If a root directory or a folder exists somewhere in the file structure that contains only folders/subfolders and no compressed files directly beneath them, the player advances to the next folder in the file structure that contains compressed audio files. The empty folder does not display. No Folder When the CD contains only compressed files, the files are located under the root folder. The next and previous folder function does not display on a CD that was recorded without folders or playlists. When the CD contains only playlists and compressed audio files, but no folders, all files are located under the root folder. The folder down and up buttons search playlists (Px) first and then goes to the root folder.

Order of Play Tracks recorded to the CD-R or CD-RW are played in the following order: • Play begins from the first track in the first playlist

and continues sequentially through all tracks in each playlist. When the last track of the last playlist has played, play continues from the first track of the first playlist.

• Play begins from the first track in the first folder

and continues sequentially through all tracks in each folder. When the last track of the last folder has played, play continues from the first track of the first folder.

When play enters a new folder, the display does not automatically show the new folder name unless you have chosen the folder mode as the default display. The new track name displays. File System and Naming The song name that displays is the song name that is contained in the ID3 tag. If the song name is not present in the ID3 tag, then the radio displays the file name without the extension (such as .mp3) as the track name. Track names longer than 32 characters or four pages are shortened. Parts of words on the last page of text and the extension of the filename does not display.

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Preprogrammed Playlists Preprogrammed playlists that were created using WinAmp™, MusicMatch™, or Real Jukebox™ software can be accessed, however, they cannot be edited using the radio. These playlists are treated as special folders containing compressed audio song files. Playing an MP3
Insert a CD-R or CD-RW partway into the slot (Single CD Player), or press the load button and wait for the message to insert disc (Six-Disc CD Player), label side up. The player pulls it in, and the CD-R or CD-RW should begin playing. If the ignition or radio is turned off with a CD-R or CD-RW in the player, it stays in the player. When the ignition or radio is turned on, the CD-R or CD-RW starts to play where it stopped, if it was the last selected audio source. As each new track starts to play, the track number and song title displays. Z EJECT: Press this button to eject CD-R(s) or CD-RW(s). To eject the CD-R or CD-RW that is currently playing, press and release this button. A beep sounds and Ejecting Disc displays. Once the disc is ejected, Remove Disc displays. The CD-R or CD-RW can be removed. If the CD-R or CD-RW is not removed, after several seconds, the CD-R or CD-RW automatically pulls back into the player and begins playing.

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For the Six-Disc CD player, press and hold this button for two seconds to eject all discs. f (Tune): Turn this knob to select MP3 files on the CD-R or CD-RW currently playing. © SEEK ¨: Press the left SEEK arrow to go to the start of the current MP3 file, if more than 10 seconds have played. Press the right arrow to go to the next MP3
file. If either SEEK arrow is held or pressed multiple times, the player continues moving backward or forward through MP3 files on the CD. Sc (Previous Folder): Press the pushbutton positioned under the Folder label to go to the first track in the previous folder. c T (Next Folder): Press the pushbutton positioned under the Folder label to go to the first track in the next folder. s REV (Reverse): Press and hold this button to reverse playback quickly within an MP3 file. Sound is heard at a reduced volume. Release this button to resume playing the file. The elapsed time of the file displays. \ FWD (Fast Forward): Press and hold this button to advance playback quickly within an MP3 file. Sound is heard at a reduced volume. Release this button to resume playing the file. The elapsed time of the file displays.

RDM (Random): With the random setting, MP3 files on the CD-R or CD-RW can be listened to in random, rather than sequential order, on one CD-R/CD-RW or all discs in a six-disc CD player. To use random, do one of the following: 1. To play MP3 files from the CD-R or CD-RW

you are listening to in random order, press the pushbutton positioned under the RDM label until Random Current Disc displays. Press the same pushbutton again to turn off random play.

2. To play songs from all CDs loaded in a six-disc CD

player in random order, press the pushbutton positioned under the RDM label until Randomize All Discs displays. Press the same pushbutton again to turn off random play.

h (Music Navigator): Use the music navigator feature to play MP3 files on the CD-R or CD-RW in order by artist or album. Press the pushbutton located below the music navigator label. The player scans the disc to sort the files by artist and album ID3 tag information. It could take several minutes to scan the disc depending on the number of MP3 files recorded to the CD-R or CD-RW. The radio can begin playing while it is scanning the disc in the background. When the scan is finished, the CD-R or CD-RW begins playing again.

Once the disc has scanned, the player defaults to playing MP3 files in order by artist. The current artist playing is shown on the second line of the display between the

arrows. Once all songs by that artist are played, the player moves to the next artist in alphabetical order on the CD-R/CD-RW and begins playing MP3 files by that artist. If you want to listen to MP3 files by another artist, press the pushbutton located below either arrow button. You will go to the next or previous artist in alphabetical order. Continue pressing either button until the desired artist is displayed. To change from playback by artist to playback by album, press the pushbutton located below the Sort By label. From the sort screen, push one of the buttons below the album button. Press the pushbutton below the back label to return to the main music navigator screen. Now the album name is displayed on the second line between the arrows and songs from the current album begins to play. Once all songs from that album are played, the player moves to the next album in alphabetical order on the CD-R/CD-RW and begins playing MP3 files from that album. To exit music navigator mode, press the pushbutton below the Back label to return to normal MP3 playback. BAND: Press this button to listen to the radio when a CD is playing. The inactive CD remains inside the radio for future listening. CD/AUX (CD/Auxiliary): Press this button to play a CD when listening to the radio. The CD icon and a message showing disc and/or track number displays when a CD is in the player.

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Press this button again and the system automatically searches for an auxiliary input device such as a portable audio player. If a portable audio player is not connected, “No Input Device Found” displays.

Theft-Deterrent Feature Non-RDS Radios THEFTLOCK® is designed to discourage theft of your vehicle’s radio. The feature works automatically by learning a portion of the Vehicle Identification Number (VIN). If the radio is moved to a different vehicle, it does not operate and LOC displays. With THEFTLOCK® activated, the radio does not operate if stolen. RDS Radios THEFTLOCK® is designed to discourage theft of your vehicle’s radio. The feature works automatically by learning a portion of the Vehicle Identification Number (VIN). If the radio is moved to a different vehicle, it does not operate and LOCKED displays. When the radio and vehicle are turned off, the blinking red light indicates that THEFTLOCK® is armed. With THEFTLOCK® activated, the radio does not operate if stolen.

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Audio Steering Wheel Controls

Vehicles with audio steering wheel controls could differ depending on your vehicle’s options. Some audio controls can be adjusted at the steering wheel. They include the following:

wx (Previous/Next): Press the arrows to go to the previous or to the next radio station and stay there. Press the arrows to go to the previous or to the next radio station stored as a Favorite. The radio only seeks stations with a strong signal that are in the selected band. To scan stations, press and hold the down arrow for two seconds until SCAN displays and a beep sounds. The radio goes to a station, plays for a few seconds, then goes to the next station. Press the down arrow again to stop scanning. When a CD is playing, press either arrow to go to the next or previous track.

g (Mute): Press this button to silence the system. Press this button again, to turn the sound on.

SRCE (Source): Press this button to switch between the radio AM, FM, XM™ (if equipped), CD, and auxiliary input jack. + e − e (Volume): Press the plus or minus volume button to increase or to decrease the volume. ¨ (Seek): Press the seek arrow to go to the next radio station while in AM, FM, or XM™ (if equipped). Press the seek arrow to go to the next track while sourced to the CD. Radio Reception Frequency interference and static can occur during normal radio reception if items such as cell phone chargers, vehicle convenience accessories, and external electronic devices are plugged into the accessory power outlet. If there is interference or static, unplug the item from the accessory power outlet.

AM The range for most AM stations is greater than for FM, especially at night. The longer range can cause station frequencies to interfere with each other. For better radio reception, most AM radio stations boost the power levels during the day, and then reduce these levels during the night. Static can also occur when things like storms and power lines interfere with radio reception. When this happens, try reducing the treble on your radio. FM Stereo FM stereo gives the best sound, but FM signals reach only about 10 to 40 miles (16 to 65 km). Tall buildings or hills can interfere with FM signals, causing the sound to fade in and out.

Fixed Mast Antenna The fixed mast antenna can withstand most car washes without being damaged. If the mast should ever become slightly bent, straighten it out by hand. If the mast is badly bent, replace it. Check occasionally to make sure the mast is still tightened to its base. If tightening is required, tighten by hand, then with a wrench one quarter turn.

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✍ NOTES

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Section 4

Driving Your Vehicle

Your Driving, the Road, and Your Vehicle ..........4-2
Defensive Driving ...........................................4-2
Drunk Driving .................................................4-2
Control of a Vehicle ........................................4-3
Braking .........................................................4-3
Antilock Brake System (ABS) ...........................4-4
Braking in Emergencies ...................................4-5
Locking Rear Axle ..........................................4-5
StabiliTrak® System ........................................4-5
All-Wheel Drive (AWD) System .........................4-7
Steering ........................................................4-7
Off-Road Recovery .......................................4-10
Passing .......................................................4-10
Loss of Control .............................................4-10

Driving at Night ............................................4-12
Driving in Rain and on Wet Roads ..................4-13
Before Leaving on a Long Trip .......................4-14
Highway Hypnosis ........................................4-14
Hill and Mountain Roads ................................4-15
Winter Driving ..............................................4-16
If Your Vehicle is Stuck in Sand, Mud,

Ice, or Snow .............................................4-19
Rocking Your Vehicle to Get It Out .................4-20
Loading Your Vehicle ....................................4-20
Towing ..........................................................4-25
Towing Your Vehicle .....................................4-25
Recreational Vehicle Towing ...........................4-26
Towing a Trailer ...........................................4-28

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Drunk Driving

{CAUTION:

Drinking and then driving is very dangerous. Your reflexes, perceptions, attentiveness, and judgment can be affected by even a small amount of alcohol. You can have a serious — or even fatal — collision if you drive after drinking. Do not drink and drive or ride with a driver who has been drinking. Ride home in a cab; or if you are with a group, designate a driver who will not drink.

Death and injury associated with drinking and driving is a global tragedy. Alcohol affects four things that anyone needs to drive a vehicle: judgment, muscular coordination, vision, and attentiveness.

Your Driving, the Road, and Your Vehicle

Defensive Driving Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear your safety belt — See Safety Belts: They Are for Everyone on page 1-10.

{CAUTION:

Assume that other road users (pedestrians, bicyclists, and other drivers) are going to be careless and make mistakes. Anticipate what they might do and be ready. In addition:

(cid:127) Allow enough following distance between

you and the driver in front of you.

(cid:127) Focus on the task of driving.

Driver distraction can cause collisions resulting in injury or possible death. These simple defensive driving techniques could save your life.

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Police records show that almost 40 percent of all motor vehicle-related deaths involve alcohol. In most cases, these deaths are the result of someone who was drinking and driving. In recent years, more than 17,000 annual motor vehicle-related deaths have been associated with the use of alcohol, with about 250,000 people injured. For persons under 21, it is against the law in every U.S. state to drink alcohol. There are good medical, psychological, and developmental reasons for these laws. The obvious way to eliminate the leading highway safety problem is for people never to drink alcohol and then drive. Medical research shows that alcohol in a person’s system can make crash injuries worse, especially injuries to the brain, spinal cord, or heart. This means that when anyone who has been drinking — driver or passenger — is in a crash, that person’s chance of being killed or permanently disabled is higher than if the person had not been drinking.

Control of a Vehicle The following three systems help to control your vehicle while driving — brakes, steering, and accelerator. At times, as when driving on snow or ice, it is easy to ask more of those control systems than the tires and road can provide. Meaning, you can lose control of your vehicle. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 5-3.

Braking See Brake System Warning Light on page 3-33. Braking action involves perception time and reaction time. First, you have to decide to push on the brake pedal. That is perception time. Then you have to bring up your foot and do it. That is reaction time. Average reaction time is about three-fourths of a second. But that is only an average. It might be less with one driver and as long as two or three seconds or more with another. Age, physical condition, alertness, coordination, and eyesight all play a part. So do alcohol, drugs, and frustration. But even in three-fourths of a second, a vehicle moving at 60 mph (100 km/h) travels 66 feet (20 m). That could be a lot of distance in an emergency, so keeping enough space between your vehicle and others is important.

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And, of course, actual stopping distances vary greatly with the surface of the road, whether it is pavement or gravel; the condition of the road, whether it is wet, dry, or icy; tire tread; the condition of the brakes; the weight of the vehicle; and the amount of brake force applied. Avoid needless heavy braking. Some people drive in spurts — heavy acceleration followed by heavy braking — rather than keeping pace with traffic. This is a mistake. The brakes might not have time to cool between hard stops. The brakes will wear out much faster if you do a lot of heavy braking. If you keep pace with the traffic and allow realistic following distances, you will eliminate a lot of unnecessary braking. That means better braking and longer brake life. If your vehicle’s engine ever stops while you are driving, brake normally but do not pump the brakes. If you do, the pedal could get harder to push down. If the engine stops, you will still have some power brake assist. But you will use it when you brake. Once the power assist is used up, it can take longer to stop and the brake pedal will be harder to push. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 5-3.

Antilock Brake System (ABS) Your vehicle has the Antilock Brake System (ABS), an advanced electronic braking system that will help prevent a braking skid. When you start the engine and begin to drive away, ABS will check itself. You might hear a momentary motor or clicking noise while this test is going on. This is normal.

If there is a problem with the ABS, this warning light will stay on. See Antilock Brake System Warning Light on page 3-34.

Let us say the road is wet and you are driving safely. Suddenly, an animal jumps out in front of you. You slam on the brakes and continue braking. Here is what happens with ABS: A computer senses that wheels are slowing down. If one of the wheels is about to stop rolling, the computer will separately work the brakes at each front wheel and at both rear wheels.

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ABS can change the brake pressure faster than any driver could. The computer is programmed to make the most of available tire and road conditions. This can help you steer around the obstacle while braking hard. As you brake, the computer keeps receiving updates on wheel speed and controls braking pressure accordingly. Remember: ABS does not change the time you need to get your foot up to the brake pedal or always decrease stopping distance. If you get too close to the vehicle in front of you, you will not have time to apply the brakes if that vehicle suddenly slows or stops. Always leave enough room up ahead to stop, even though you have ABS. Using ABS Do not pump the brakes. Just hold the brake pedal down firmly and let antilock work for you. You might feel the brakes vibrate or notice some noise, but this is normal.

Braking in Emergencies With ABS, you can steer and brake at the same time. In many emergencies, steering can help you more than even the very best braking.

Locking Rear Axle If your vehicle has this feature, your locking rear axle can give you additional traction on snow, mud, ice, sand or gravel. It works like a standard axle most of the time, but when one of the rear wheels has no traction and the other does, this feature will allow the wheel with traction to move the vehicle.

StabiliTrak® System If your vehicle has StabiliTrak®, it combines anti-lock brake, traction and stability control systems and helps the driver maintain directional control of the vehicle in most driving conditions. When you first start your vehicle and begin to drive away, the system performs several diagnostic checks to ensure that it is working properly. You may hear or feel the system working. This is normal and does not mean there is a problem with your vehicle. The system should initialize before the vehicle reaches 20 mph (32 km/h). In some cases, it may take approximately 2 miles (3.2 km) of driving before the system initializes.

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Pressing and holding the StabiliTrak® button located on the instrument panel for more than five seconds can turn off StabiliTrak® and part of the traction control system.

For more information, see StabiliTrak® Indicator Light on page 3-34. For your safety, the system can only be disabled when the vehicle speed is less than 20 mph (32 km/h). You will hear three chimes and the StabiliTrak® not ready light will come on. To turn on the StabiliTrak® system, press the StabiliTrak® button again. StabiliTrak® will automatically turn back on when the vehicle speed exceeds 20 mph (32 km/h). You will hear one chime and the StabiliTrak® not ready light will turn off. When the StabiliTrak® system has been turned off you may still hear system noises as a result of the brake-traction control coming on.

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It is recommended to leave the system on for normal driving conditions, but it may be necessary to turn the system off if your vehicle is stuck in sand, mud, ice or snow, and you want to “rock” your vehicle to attempt to free it. See If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow on page 4-19. StabiliTrak® System Operation The StabiliTrak® system is normally on, except when the system is initializing or has been disabled with the StabiliTrak® button. The StabiliTrak® system will automatically activate to assist the driver in maintaining vehicle directional control in most driving conditions. When activated, the StabiliTrak® system may reduce engine power to the wheels and apply braking to individual wheels as necessary to assist the driver with vehicle directional control. If your vehicle is in cruise control when the system activates, the StabiliTrak® indicator light on the instrument panel will flash, and the cruise control will automatically disengage. When the StabiliTrak® system is no longer active, you may re-engage the cruise control. See Cruise Control on page 3-10. The StabiliTrak® system may also turn off automatically if it determines that a problem exists with the system. If the problem does not clear itself after restarting the vehicle, you should see your dealer/retailer for service.

Traction Control Operation The traction control system is part of the StabiliTrak® system. Traction control limits wheel spin by reducing engine power to the wheels (engine speed management) and by applying brakes to each individual wheel (brake-traction control) as necessary. If the brake-traction control system activates constantly or if the brakes have heated up due to high speed braking, the brake-traction control will be automatically disabled. The system will come back on after the brakes have cooled. This can take up to two minutes or longer depending on brake usage. The traction control system may activate on dry or rough roads or under conditions such as heavy acceleration while turning or abrupt upshifts/downshifts of the transmission. When this happens you may notice a reduction in acceleration, or may hear a noise or vibration. This is normal. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 5-3 for more information.

All-Wheel Drive (AWD) System If your vehicle has all-wheel drive, your engine’s driving power is sent to all four wheels for extra traction when needed. This is like four-wheel drive, but there is no separate lever or switch to engage or disengage the front axle. It is fully automatic, and adjusts itself as needed for road conditions. You may experience a brief vehicle vibration upon acceleration when driving in slippery conditions. This is normal and is an indication that the all-wheel drive system is functioning properly.

Steering Power Steering If you lose power steering assist because the engine stops or the system is not functioning, you can steer but it will take much more effort.

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What should you do if this ever happens? Ease up on the accelerator pedal, steer the vehicle the way you want it to go, and slow down. Speed limit signs near curves warn that you should adjust your speed. Of course, the posted speeds are based on good weather and road conditions. Under less favorable conditions you will want to go slower. If you need to reduce your speed as you approach a curve, do it before you enter the curve, while the front wheels are straight ahead. Try to adjust your speed so you can drive through the curve. Maintain a reasonable, steady speed. Wait to accelerate until you are out of the curve, and then accelerate gently into the straightaway. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 5-3.

Steering Tips It is important to take curves at a reasonable speed. A lot of the “driver lost control” accidents mentioned on the news happen on curves. Here is why: Experienced driver or beginner, each of us is subject to the same laws of physics when driving on curves. The traction of the tires against the road surface makes it possible for the vehicle to change its path when you turn the front wheels. If there is no traction, inertia will keep the vehicle going in the same direction. If you have ever tried to steer a vehicle on wet ice, you will understand this. The traction you can get in a curve depends on the condition of the tires and the road surface, the angle at which the curve is banked, and your speed. While you are in a curve, speed is the one factor you can control. Suppose you are steering through a sharp curve. Then you suddenly accelerate. Both control systems — steering and acceleration — have to do their work where the tires meet the road. Adding the sudden acceleration can demand too much of those places. You can lose control.

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Steering in Emergencies There are times when steering can be more effective than braking. For example, you come over a hill and find a truck stopped in your lane, or a car suddenly pulls out from nowhere, or a child darts out from between parked cars and stops right in front of you. You can avoid these problems by braking — if you can stop in time. But sometimes you cannot; there is not room. That is the time for evasive action — steering around the problem. Your vehicle can perform very well in emergencies like these. First apply the brakes. See Braking on page 4-3. It is better to remove as much speed as you can from a possible collision. Then steer around the problem, to the left or right depending on the space available.

An emergency like this requires close attention and a quick decision. If you are holding the steering wheel at the recommended 9 and 3 o’clock positions, you can turn it a full 180 degrees very quickly without removing either hand. But you have to act fast, steer quickly, and just as quickly straighten the wheel once you have avoided the object. The fact that such emergency situations are always possible is a good reason to practice defensive driving at all times and wear safety belts properly.

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Off-Road Recovery You may find that your right wheels have dropped off the edge of a road onto the shoulder while you are driving.

If the level of the shoulder is only slightly below the pavement, recovery should be fairly easy. Ease off the accelerator and then, if there is nothing in the way, steer so that your vehicle straddles the edge of the pavement. You can turn the steering wheel up to one-quarter turn until the right front tire contacts the pavement edge. Then turn the steering wheel to go straight down the roadway.

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Passing Passing another vehicle on a two-lane road can be dangerous. To reduce the risk of danger while passing, we suggest the following tips: • Look down the road, to the sides, and to crossroads

for situations that might affect a successful pass. If in doubt, wait.

• Watch for traffic signs, pavement markings, and lines that could indicate a turn or an intersection. Never cross a solid or double-solid line on your side of the lane.

• Do not get too close to the vehicle you want to

pass. Doing so can reduce your visibility.

• Wait your turn to pass a slow vehicle. • When you are being passed, ease to the right.

Loss of Control Let us review what driving experts say about what happens when the three control systems — brakes, steering, and acceleration — do not have enough friction where the tires meet the road to do what the driver has asked. In any emergency, do not give up. Keep trying to steer and constantly seek an escape route or area of less danger.

Skidding In a skid, a driver can lose control of the vehicle. Defensive drivers avoid most skids by taking reasonable care suited to existing conditions, and by not overdriving those conditions. But skids are always possible. The three types of skids correspond to your vehicle’s three control systems. In the braking skid, the wheels are not rolling. In the steering or cornering skid, too much speed or steering in a curve causes tires to slip and lose cornering force. And in the acceleration skid, too much throttle causes the driving wheels to spin. A cornering skid is best handled by easing your foot off the accelerator pedal. If your vehicle starts to slide, ease your foot off the accelerator pedal and quickly steer the way you want the vehicle to go. If you start steering quickly enough, your vehicle may straighten out. Always be ready for a second skid if it occurs.

Of course, traction is reduced when water, snow, ice, gravel, or other material is on the road. For safety, you want to slow down and adjust your driving to these conditions. It is important to slow down on slippery surfaces because stopping distance is longer and vehicle control more limited. While driving on a surface with reduced traction, try your best to avoid sudden steering, acceleration, or braking, including reducing vehicle speed by shifting to a lower gear. Any sudden changes could cause the tires to slide. You might not realize the surface is slippery until your vehicle is skidding. Learn to recognize warning clues — such as enough water, ice, or packed snow on the road to make a mirrored surface — and slow down when you have any doubt. Remember: Any Antilock Brake System (ABS) helps avoid only the braking skid.

4-11

Driving at Night Night driving is more dangerous than day driving because some drivers are likely to be impaired — by alcohol or drugs, with night vision problems, or by fatigue. Night driving tips include: • Drive defensively. • Do not drink and drive. • Reduce headlamp glare by adjusting the inside

rearview mirror.

• Slow down and keep more space between you and

other vehicles because your headlamps can only light up so much road ahead.

• Watch for animals. • When tired, pull off the road. • Do not wear sunglasses. • Avoid staring directly into approaching headlamps. • Keep the windshield and all glass on your vehicle

clean — inside and out.

• Keep your eyes moving, especially during turns or

curves.

No one can see as well at night as in the daytime. But, as we get older, these differences increase. A 50-year-old driver might need at least twice as much light to see the same thing at night as a 20-year-old.

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Driving in Rain and on Wet Roads Rain and wet roads can reduce vehicle traction and affect your ability to stop and accelerate. Always drive slower in these types of driving conditions and avoid driving through large puddles and deep-standing or flowing water.

{CAUTION:

Wet brakes can cause crashes. They might not work as well in a quick stop and could cause pulling to one side. You could lose control of the vehicle. After driving through a large puddle of water or a car/vehicle wash, lightly apply the brake pedal until the brakes work normally. Flowing or rushing water creates strong forces. Driving through flowing water could cause your vehicle to be carried away. If this happens, you and other vehicle occupants could drown. Do not ignore police warnings and be very cautious about trying to drive through flowing water.

Hydroplaning Hydroplaning is dangerous. Water can build up under your vehicle’s tires so they actually ride on the water. This can happen if the road is wet enough and you are going fast enough. When your vehicle is hydroplaning, it has little or no contact with the road. There is no hard and fast rule about hydroplaning. The best advice is to slow down when the road is wet. Other Rainy Weather Tips Besides slowing down, other wet weather driving tips include: • Allow extra following distance. • Pass with caution. • Keep windshield wiping equipment in good shape. • Keep the windshield washer fluid reservoir filled. • Have good tires with proper tread depth. See Tires

on page 5-53.

4-13

Before Leaving on a Long Trip To prepare your vehicle for a long trip, consider having it serviced by your dealer/retailer before departing. Things to check on your own include: • Windshield Washer Fluid: Reservoir full? Windows

clean — inside and outside?

• Wiper Blades: In good shape? • Fuel, Engine Oil, Other Fluids: All levels checked? • Lamps: Do they all work and are lenses clean? • Tires: Are treads good? Are tires inflated to

recommended pressure?

• Weather and Maps: Safe to travel? Have

up-to-date maps?

Highway Hypnosis Always be alert and pay attention to your surroundings while driving. If you become tired or sleepy, find a safe place to park your vehicle and rest. Other driving tips include: • Keep the vehicle well ventilated. • Keep interior temperature cool. • Keep your eyes moving — scan the road ahead

and to the sides.

• Check the rearview mirror and vehicle

instruments often.

4-14

Hill and Mountain Roads Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include: • Keep your vehicle serviced and in good shape. • Check all fluid levels and brakes, tires, cooling

system, and transmission.

• Going down steep or long hills, shift to a

lower gear.

{CAUTION:

If you do not shift down, the brakes could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Shift down to let the engine assist the brakes on a steep downhill slope.

{CAUTION:

Coasting downhill in NEUTRAL (N) or with the ignition off is dangerous. The brakes will have to do all the work of slowing down and they could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Always have the engine running and your vehicle in gear when you go downhill.

• Stay in your own lane. Do not swing wide or cut

across the center of the road. Drive at speeds that let you stay in your own lane.

• Top of hills: Be alert — something could be in your

lane (stalled car, accident).

• Pay attention to special road signs (falling rocks

area, winding roads, long grades, passing or no-passing zones) and take appropriate action.

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Winter Driving Here are some tips for winter driving: • Have your vehicle in good shape for winter. • You might want to put winter emergency supplies in

your vehicle.

Include an ice scraper, a small brush or broom, a supply of windshield washer fluid, a rag, some winter outer clothing, a small shovel, a flashlight, a red cloth, and reflective warning triangles. And, if you will be driving under severe conditions, include a small bag of sand, a piece of old carpet, or a couple of burlap bags to help provide traction. Be sure you properly secure these items in your vehicle. Also see Tires on page 5-53. Driving on Snow or Ice Most of the time, those places where the tires meet the road probably have good traction. However, if there is snow or ice between the tires and the road, you can have a very slippery situation. You have a lot less traction, or grip, and need to be very careful.

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What is the worst time for this? Wet ice. Very cold snow or ice can be slick and hard to drive on. But wet ice can be even more trouble because it can offer the least traction of all. You can get wet ice when it is about freezing, 32°F (0°C), and freezing rain begins to fall. Try to avoid driving on wet ice until salt and sand crews can get there.

Whatever the condition — smooth ice, packed, blowing, or loose snow — drive with caution. Accelerate gently. Try not to break the fragile traction. If you accelerate too fast, the drive wheels will spin and polish the surface under the tires even more. The Antilock Brake System (ABS) improves your vehicle’s stability when you make a hard stop on a slippery road. Even though you have ABS, begin stopping sooner than you would on dry pavement. See Antilock Brake System (ABS) on page 4-4. • Allow greater following distance on any

slippery road.

• Watch for slippery spots. The road might be fine until you hit a spot that is covered with ice. On an otherwise clear road, ice patches can appear in shaded areas where the sun cannot reach, such as around clumps of trees, behind buildings, or under bridges. Sometimes the surface of a curve or an overpass can remain icy when the surrounding roads are clear. If you see a patch of ice ahead of you, brake before you are on it. Try not to brake while you are actually on the ice, and avoid sudden steering maneuvers.

If You Are Caught in a Blizzard If you are stopped by heavy snow, you could be in a serious situation. You should probably stay with your vehicle unless you know for sure that you are near help and you can hike through the snow. Here are some things to do to summon help and keep yourself and your passengers safe: • Turn on the hazard warning flashers. • Tie a red cloth to your vehicle to alert police that

you have been stopped by the snow.

• Put on extra clothing or wrap a blanket around you. If you do not have blankets or extra clothing, make body insulators from newspapers, burlap bags, rags, floor mats — anything you can wrap around yourself or tuck under your clothing to keep warm.

4-17

{CAUTION:

Snow can trap exhaust gases under your vehicle. This can cause deadly CO (carbon monoxide) gas to get inside. CO could overcome you and kill you. You cannot see it or smell it, so you might not know it is in your vehicle. Clear away snow from around the base of your vehicle, especially any that is blocking the exhaust pipe and/or the fuel operated heater exhaust system, if equipped. And check around again from time to time to be sure snow does not collect there. If your vehicle has a diesel engine and a fuel operated heater, see “Fuel Operated Heater (FOH)” in the diesel engine supplement. Open a window just a little on the side of the vehicle that is away from the wind. This will help keep CO out.

You can run the engine to keep warm, but be careful.

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Run your engine only as long as you must. This saves fuel. When you run the engine, make it go a little faster than just idle. That is, push the accelerator slightly. This uses less fuel for the heat that you get and it keeps the battery (or batteries) charged. You will need a well-charged battery (or batteries) to restart the vehicle, and possibly for signaling later on with the headlamps. Let the heater run for a while. Then, shut the engine off and close the window almost all the way to preserve the heat. Start the engine again and repeat this only when you feel really uncomfortable from the cold. But do it as little as possible. Preserve the fuel as long as you can. To help keep warm, you can get out of the vehicle and do some fairly vigorous exercises every half hour or so until help comes.

If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow Slowly and cautiously spin the wheels to free your vehicle when stuck in sand, mud, ice, or snow. See Rocking Your Vehicle to Get It Out on page 4-20. If your vehicle has a traction system, it can often help to free a stuck vehicle. Refer to your vehicle’s traction system in the Index. If the stuck condition is too severe for the traction system to free the vehicle, turn the traction system off and use the rocking method.

{CAUTION:

If you let your vehicle’s tires spin at high speed, they can explode, and you or others could be injured. The vehicle can overheat, causing an engine compartment fire or other damage. Spin the wheels as little as possible and avoid going above 35 mph (55 km/h) as shown on the speedometer.

For information about using tire chains on your vehicle, see Tire Chains on page 5-76.

4-19

Rocking Your Vehicle to Get It Out First, turn the steering wheel left and right to clear the area around the front wheels. Turn off any traction or stability system. See StabiliTrak® System on page 4-5. Then shift back and forth between REVERSE (R) and a forward gear, spinning the wheels as little as possible. To prevent transmission wear, wait until the wheels stop spinning before shifting gears. Release the accelerator pedal while you shift, and press lightly on the accelerator pedal when the transmission is in gear. By slowly spinning the wheels in the forward and reverse directions, you will cause a rocking motion that could free your vehicle. If that does not get your vehicle out after a few tries, it might need to be towed out. If your vehicle does need to be towed out, see Towing Your Vehicle on page 4-25.

Loading Your Vehicle It is very important to know how much weight your vehicle can carry. This weight is called the vehicle capacity weight and includes the weight of all occupants, cargo, and all nonfactory-installed options. Two labels on your vehicle show how much weight it was designed to carry, the Tire and Loading Information label and the Certification/Tire label.

{CAUTION:

Do not load your vehicle any heavier than the Gross Vehicle Weight Rating (GVWR), or either the maximum front or rear Gross Axle Weight Rating (GAWR). If you do, parts on your vehicle can break, and it can change the way your vehicle handles. These could cause you to lose control and crash. Also, overloading can shorten the life of your vehicle.

4-20

Tire and Loading Information Label

Label Example

A vehicle specific Tire and Loading Information label is attached to the center pillar (B-pillar). With the driver’s door open, you will find the label attached below the door lock post (striker). The tire and loading information label shows the number of occupant seating positions (A), and the maximum vehicle capacity weight (B) in kilograms and pounds.

The Tire and Loading Information label also shows the size of the original equipment tires (C) and the recommended cold tire inflation pressures (D). For more information on tires and inflation see Tires on page 5-53 and Inflation - Tire Pressure on page 5-60. There is also important loading information on the vehicle Certification/Tire label. It tells you the Gross Vehicle Weight Rating (GVWR) and the Gross Axle Weight Rating (GAWR) for the front and rear axle. See “Certification/Tire Label” later in this section. Steps for Determining Correct Load Limit 1. Locate the statement “The combined weight

of occupants and cargo should never exceed XXX kg or XXX lbs” on your vehicle’s placard.

2. Determine the combined weight of the driver

and passengers that will be riding in your vehicle.

3. Subtract the combined weight of the driver and passengers from XXX kg or XXX lbs.

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4. The resulting figure equals the available

amount of cargo and luggage load capacity. For example, if the “XXX” amount equals 1400 lbs and there will be five 150 lb passengers in your vehicle, the amount of available cargo and luggage load capacity is 650 lbs (1400 − 750 (5 x 150) = 650 lbs).

5. Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4.

6. If your vehicle will be towing a trailer, the load

from your trailer will be transferred to your vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle. See Towing a Trailer on page 4-28 for important information on towing a trailer, towing safety rules and trailering tips.

4-22

Example 1

Item

Description Vehicle Capacity Weight for Example 1 = Subtract Occupant Weight 150 lbs (68 kg) × 2 = Available Occupant and Cargo Weight =

Total

1,000 lbs (453 kg)

300 lbs (136 kg)

700 lbs (317 kg)

Example 2

Example 3

Item

Description Vehicle Capacity Weight for Example 2 = Subtract Occupant Weight 150 lbs (68 kg) × 5 = Available Cargo Weight =

Total

Item

1,000 lbs (453 kg)

750 lbs (136 kg)

250 lbs (113 kg)

Description Vehicle Capacity Weight for Example 3 = Subtract Occupant Weight 200 lbs (91 kg) × 5 = Available Cargo Weight =

Total

1,000 lbs (453 kg)

1000 lbs (453 kg)

0 lbs (0 kg)

Refer to your vehicle’s tire and loading information label for specific information about your vehicle’s capacity weight and seating positions. The combined weight of the driver, passengers, and cargo should never exceed your vehicle’s capacity weight.

4-23

Certification/Tire Label

A vehicle specific Certification/Tire label is found on the rear edge of the driver’s door. The label shows the size of your vehicle’s original tires and the inflation pressures needed to obtain the gross weight capacity of your vehicle. This is called Gross Vehicle Weight Rating (GVWR). The GVWR includes the weight of the vehicle, all occupants, fuel, and cargo.

4-24

The Certification/Tire label also tells you the maximum weights for the front and rear axles, called Gross Axle Weight Rating (GAWR). To find out the actual loads on your front and rear axles, you need to go to a weigh station and weigh your vehicle. Your dealer can help you with this. Be sure to spread out your load equally on both sides of the centerline. Never exceed the GVWR for your vehicle, or the GAWR for either the front or rear axle. And, if you do have a heavy load, you should spread it out.

{CAUTION:

Do not load your vehicle any heavier than the Gross Vehicle Weight Rating (GVWR), or either the maximum front or rear Gross Axle Weight Rating (GAWR). If you do, parts on your vehicle can break, and it can change the way your vehicle handles. These could cause you to lose control and crash. Also, overloading can shorten the life of your vehicle.

{CAUTION:

Things you put inside your vehicle can strike and injure people in a sudden stop or turn, or in a crash.

(cid:127) Put things in the cargo area of your

vehicle. Try to spread the weight evenly.

(cid:127) Never stack heavier things, like

suitcases, inside the vehicle so that some of them are above the tops of the seats.

(cid:127) Do not leave an unsecured child

restraint in your vehicle.

(cid:127) When you carry something inside the vehicle, secure it whenever you can.

(cid:127) Do not leave a seat folded down

unless you need to.

Add-On Equipment When you carry removable items, you may need to put a limit on how many people you carry inside your vehicle. Be sure to weigh your vehicle before you buy and install the new equipment. Towing

Towing Your Vehicle Consult your dealer/retailer or a professional towing service if you need to have your disabled vehicle towed. See Roadside Assistance Program on page 7-6. If you want to tow your vehicle behind another vehicle for recreational purposes (such as behind a motorhome), see “Recreational Vehicle Towing” following.

4-25

Recreational Vehicle Towing Recreational vehicle towing means towing your vehicle behind another vehicle — such as behind a motorhome. The two most common types of recreational vehicle towing are known as “dinghy” (towing your vehicle with all four wheels on the ground) and “dolly” (towing your vehicle with two wheels on the ground and two wheels up on a device known as a “dolly”). With the proper preparation and equipment, many vehicles can be towed in these ways. See “Dinghy Towing” and “Dolly Towing” following. Here are some important things to consider before you do recreational vehicle towing: • What’s the towing capacity of the towing vehicle? Be sure you read the tow vehicle manufacturer’s recommendations.

• How far will you tow? Some vehicles have

restrictions on how far and how long they can tow.

• Do you have the proper towing equipment?

See your dealer/retailer or trailering professional for additional advice and equipment recommendations. • Is your vehicle ready to be towed? Just as you would

prepare your vehicle for a long trip, you’ll want to make sure your vehicle is prepared to be towed.

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If you tow your vehicle with all four wheels

Dinghy Towing Two-Wheel-Drive Vehicles Notice: on the ground, the drivetrain components could be damaged. The repairs would not be covered by your warranty. Do not tow your vehicle with all four wheels on the ground. Two-wheel-drive vehicles should not be towed with all four wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed. All-Wheel-Drive Vehicles Your vehicle was not designed to be towed with all four wheels on the ground. To properly tow these vehicles, they should be placed on a platform trailer with all four wheels off the ground. Notice: Towing an all-wheel-drive vehicle with all four wheels on the ground, or even with only two of its wheels on the ground, will damage drivetrain components. Do not tow an all-wheel-drive vehicle if any of its wheels will be on the ground.

Dolly Towing Rear Towing (Rear Wheels Off the Ground) Two-Wheel-Drive Vehicles Use the following procedure to tow your vehicle from the rear: 1. Drive the vehicle onto the dolly. 2. Firmly set the parking brake. See Parking Brake on

page 2-26 for more information.

3. Put the automatic transmission in PARK (P). 4. Follow the dolly manufacturer’s instructions to attach

and secure the vehicle being towed to the dolly and then the loaded dolly to the tow vehicle. Make sure the wheels are straight before towing. Use an adequate clamping device to ensure that the front wheels are locked into the straight position.

5. Release the parking brake only after the vehicle being towed is firmly attached to the tow vehicle.

6. Turn the ignition to LOCK/OFF.

If the tow vehicle will not be started or driven for six weeks or more, remove the battery cable from the negative terminal (post) of the battery to prevent your battery from draining while towing.

All-Wheel-Drive Vehicles Your vehicle was not designed to be towed with two wheels on the ground. To properly tow these vehicles, they should be placed on a platform trailer with all four wheels off the ground. Notice: Towing an all-wheel-drive vehicle with all four wheels on the ground, or even with only two of its wheels on the ground, will damage drivetrain components. Do not tow an all-wheel-drive vehicle if any of its wheels will be on the ground.

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Towing a Trailer If your vehicle has a diesel engine, see the DURAMAX® Diesel manual for more information.

{CAUTION:

If you do not use the correct equipment and drive properly, you can lose control when you pull a trailer. For example, if the trailer is too heavy, the brakes may not work well — or even at all. You and your passengers could be seriously injured. You may also damage your vehicle; the resulting repairs would not be covered by your warranty. Pull a trailer only if you have followed all the steps in this section. Ask your dealer/retailer for advice and information about towing a trailer with your vehicle.

Notice: Pulling a trailer improperly can damage your vehicle and result in costly repairs that would not be covered by your warranty. Always follow the instructions in this section and check with your dealer/retailer for more information about towing a trailer with your vehicle. To identify the trailering capacity of your vehicle, you should read the information in “Weight of the Trailer” that appears later in this section. Trailering is different than just driving your vehicle by itself. Trailering means changes in acceleration, braking, handling, durability and fuel economy. Successful, safe trailering takes correct equipment, and it has to be used properly. That’s the reason for this part. In it are many time-tested, important trailering tips and safety rules. Many of these are important for your safety and that of your passengers. So please read this section carefully before you pull a trailer.

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If You Do Decide To Pull A Trailer If you do, here are some important points: • There are many different laws, including speed limit restrictions, having to do with trailering. Make sure your rig will be legal, not only where you live but also where you’ll be driving. A good source for this information can be state or provincial police.

• Consider using a sway control. See “Hitches” later

in this section.

• Don’t tow a trailer at all during the first 500 miles (800 km) your new vehicle is driven. Your engine, axle or other parts could be damaged.

• Then, during the first 500 miles (800 km) that you

tow a trailer, don’t drive over 50 mph (80 km/h) and don’t make starts at full throttle. This helps your engine and other parts of your vehicle wear in at the heavier loads.

• See also “Driving on Grades” later in this section.

Three important considerations have to do with weight: • The weight of the trailer • The weight of the trailer tongue • And the weight on your vehicle’s tires Also see Tow/Haul Mode on page 2-25 for information about the Tow/Haul button, and the Tow/Haul indicator light. Weight of the Trailer How heavy can a trailer safely be? It depends on how you plan to use your rig. For example, speed, altitude, road grades, outside temperature and how much your vehicle is used to pull a trailer are all important. It can also depend on any special equipment that you have on your vehicle, and the amount of tongue weight the vehicle can carry. See “Weight of the Trailer Tongue” later in this section for more information. Maximum trailer weight is calculated assuming only the driver is in the tow vehicle and it has all the required trailering equipment. The weight of additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the maximum trailer weight.

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The following charts show how much your trailer can weigh, based upon vehicle model and options.

G1500 Cargo Van 2WD Axle Ratio 4300 V6
5300 V8

3.73
3.73

Maximum Trailer Weight

4,400 lbs (1 996 kg) 6,700 lbs (3 039 kg)

H1500 Cargo Van AWD Axle Ratio 5300 V8

3.73

Maximum Trailer Weight

6,500 lbs (2 948 kg)

GCWR*

9,500 lbs (4 309 kg) 12,000 lbs (5 443 kg)

GCWR*

12,000 lbs (5 443 kg)

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73

6,300 lbs (2 858 kg)

12,000 lbs (5 443 kg)

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73

6,000 lbs (2 722 kg)

12,000 lbs (5 443 kg)

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73
4.10
3.73
4.10

6,400 lbs (2 903 kg) 7,400 lbs (3 357 kg) 8,400 lbs (3 810 kg) 10,000 lbs (4 536 kg)

12,000 lbs (5 443 kg) 13,000 lbs (5 897 kg) 14,000 lbs (6 350 kg) 16,000 lbs (7 257 kg)

G1500 Passenger Van 2WD 5300 V8

H1500 Passenger Van AWD 5300 V8

G2500 Cargo Van 2WD Short Wheelbase

4800 V8

6000 V8

4-30

G2500 Cargo Van 2WD Long Wheelbase

4800 V8

6000 V8

G2500 Passenger Van 2WD Short Wheelbase 6000 V8

G3500 Cargo Van 2WD Short Wheelbase

4800 V8

6000 V8

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73
4.10
3.73
4.10

6,100 lbs (2 767 kg) 7,100 lbs (3 220 kg) 8,200 lbs (3 719 kg) 10,000 lbs (4 536 kg)

12,000 lbs (5 443 kg) 13,000 lbs (5 897 kg) 14,000 lbs (6 350 kg) 16,000 lbs (7 257 kg)

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73

7,700 lbs (3 493 kg)

14,000 lbs (6 350 kg)

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73
4.10
3.73
4.10

6,300 lbs (2 858 kg) 7,300 lbs (3 311 kg) 8,400 lbs (3 810 kg) 10,000 lbs (4 536 kg)

12,000 lbs (5 443 k3) 13,000 lbs (5 897 kg) 14,000 lbs (6 350 kg) 16,000 lbs (7 257 kg)

4-31

G3500 Cargo Van 2WD Long Wheelbase

4800 V8

6000 V8

G3500 Passenger Van 2WD Short Wheelbase 6000 V8

G3500 Passenger Van 2WD Long Wheelbase 6000 V8

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73
4.10
3.73
4.10

6,100 lbs (2 767 kg) 7,100 lbs (3 221 kg) 8,200 lbs (3 719 kg) 10,000 lbs (4 536 kg)

12,000 lbs (5 443 kg) 13,000 lbs (5 897 kg) 14,000 lbs (6 350 kg) 16,000 lbs (7 257 kg)

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73

7,600 lbs (3 447 kg)

14,000 lbs (6 350 kg)

Axle Ratio

Maximum Trailer Weight

GCWR*

3.73

7,300 lbs (3 311 kg)

14,000 lbs (6 350 kg)

*The Gross Combined Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo equipment and conversion. The GCWR for your vehicle should not be exceeded.

Ask your dealer/retailer for our trailering information or advice, or write us at our Customer Assistance Offices. See Customer Assistance Offices on page 7-5
for more information.

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Weight of the Trailer Tongue The tongue load (A) of any trailer is an important weight to measure because it affects the total or gross weight of your vehicle. The Gross Vehicle Weight (GVW) includes the curb weight of the vehicle, any cargo you may carry in it, and the people who will be riding in the vehicle. If you have a lot of options, equipment, passengers or cargo in your vehicle, it will reduce the tongue weight your vehicle can carry, which will also reduce the trailer weight your vehicle can tow. And if you will tow a trailer, you must add the tongue load to the GVW because your vehicle will be carrying that weight, too. See Loading Your Vehicle on page 4-20
about your vehicle’s maximum load capacity.

The trailer tongue weight (A) should be 10 percent to 15 percent of the total loaded trailer weight (B), up to a maximum of 400 lbs (181 kg) with a weight carrying hitch. The trailer tongue weight (A) should be 10 percent to 15 percent of the total loaded trailer weight (B), up to a maximum of 1,000 lbs (454 kg) with a weight distributing hitch.

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Do not exceed the maximum allowable tongue weight for your vehicle. Choose the shortest hitch extension that will position the hitch ball closest to the vehicle. This will help reduce the effect of trailer tongue weight on the rear axle. After you’ve loaded your trailer, weigh the trailer and then the tongue, separately, to see if the weights are proper. If they aren’t, you may be able to get them right simply by moving some items around in the trailer. Trailering may be limited by the vehicle’s ability to carry tongue weight. Tongue weight cannot cause the vehicle to exceed the GVWR (Gross Vehicle Weight Rating) or the RGAWR (Rear Gross Axle Weight Rating). The effect of additional weight may reduce your trailering capacity more than the total of the additional weight.

Consider the following example: A vehicle model base weight is 5,500 lbs (2 495 kg); 2,800 lbs (1 270 kg) at the front axle and 2,700 lbs (1 225 kg) at the rear axle. It has a GVWR of 7,200 lbs (3 266 kg), a RGAWR of 4,000 lbs (1 814 kg) and a GCWR (Gross Combination Weight Rating) of 14,000 lbs (6 350 kg). The trailer rating should be:

You can expect tongue weight to be at least 10 percent of trailer weight (850 lbs (386 kg)) and because the weight is applied well behind the rear axle, the effect on the rear axle will be greater than just the weight itself, as much as 1.5 times as much. The weight at the rear axle could be 850 lbs (386 kg) X 1.5 = 1,275 lbs (578 kg). Since the rear axle already weighs 2,700 lbs (1 225 kg), adding 1,275 lbs (578 kg) brings the total to 3,975 lbs (1 803 kg). This is very close to, but within the limit for RGAWR as well. The vehicle is set to trailer up to 8,500 lbs (3 856 kg).

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But let’s say your specific vehicle is equipped with some of the latest options and you have a front seat passenger and two rear seat passengers with some luggage and gear in the vehicle as well. You may add 300 lbs (136 kg) to the front axle weight and 400 lbs (181 kg) to the rear axle weight. Your vehicle now weighs:

The effect of tongue weight is about 1.5 times the actual weight. Dividing the 900 lbs (408 kg) by 1.5 leaves you with being able to handle only 600 lbs (272 kg) of tongue weight. Since tongue weight is usually at least 10 percent of total loaded trailer weight, you can expect that the largest trailer your vehicle can properly handle is 6,000 lbs (2 721 kg). It is important that you make sure your vehicle does not exceed any of its ratings — GCWR, GVWR, RGAWR, Maximum Trailer Rating or Tongue Weight. The only way to be sure you are not exceeding any of these ratings is to weigh your vehicle and trailer.

Weight is still below 7,200 lbs (3 266 kg) and you may think that you should subtract 700 additional pounds (318 kg) from your trailering capacity to stay within GCWR limits. Your maximum trailer would only be 7,800 lbs (3 538 kg). You may go further and think you must limit tongue weight to less than 1,000 lbs (454 kg) to avoid exceeding GVWR. But, you must still consider the effect on the rear axle. Because your rear axle now weighs 3,100 lbs (1 406 kg), you can only put 900 lbs (408 kg) on the rear axle without exceeding RGAWR.

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Total Weight on Your Vehicle’s Tires Be sure your vehicle’s tires are inflated to the upper limit for cold tires. You’ll find these numbers on the Certification label at the rear edge of the driver’s door or see Loading Your Vehicle on page 4-20. Then be sure you don’t go over the GVW limit for your vehicle, or the GAWR, including the weight of the trailer tongue. If you use a weight distributing hitch, make sure you don’t go over the rear axle limit before you apply the weight distribution spring bars. Hitches It’s important to have the correct hitch equipment. Crosswinds, large trucks going by and rough roads are a few reasons why you’ll need the right hitch. The rear bumper on your vehicle is not intended for hitches. Do not attach rental hitches or other bumper-type hitches to it. Use only a frame-mounted hitch that does not attach to the bumper.

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Weight-Distributing Hitches and Weight Carrying Hitches

(A) Body to Ground Distance, (B) Front of Vehicle

When using a weight-distributing hitch, the hitch must be adjusted so that the distance (A) remains the same both before and after coupling the trailer to the tow vehicle. If you use a step-bumper hitch, your bumper could be damaged in sharp turns. Make sure you have ample room when turning to avoid contact between the trailer and the bumper.

If you’ll be pulling a trailer that, when loaded, will weigh more than 5,000 lbs (2 270 kg), be sure to use a properly mounted weight-distributing hitch and sway control of the proper size. This equipment is very important for proper vehicle loading and good handling when you’re driving. You should always use a sway control if your trailer will weigh more than these limits. You can ask a hitch dealer/retailer about sway controls. Will you have to make any holes in the body of your vehicle when you install a trailer hitch? If you’re using the wiring provided with the factory-installed trailering package, you should not need to make any holes in the body of your vehicle. However, if you have an aftermarket hitch installed, you may need to make holes in the body. If you do, then be sure to seal the holes later when you remove the hitch. If you don’t seal them, deadly carbon monoxide (CO) from your exhaust can get into your vehicle as well as dirt and water. See “Carbon Monoxide” under Engine Exhaust on page 2-30.

Safety Chains You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue of the trailer to help prevent the tongue from contacting the road if it becomes separated from the hitch. Instructions about safety chains may be provided by the hitch manufacturer or by the trailer manufacturer. Follow the manufacturer’s recommendation for attaching safety chains and do not attach them to the bumper. Always leave just enough slack so you can turn with your rig. Never allow safety chains to drag on the ground. Trailer Brakes If your trailer weighs more than 1,000 lbs (450 kg) loaded, then it needs its own brakes – and they must be adequate. Be sure to read and follow the instructions for the trailer brakes so you’ll be able to install, adjust and maintain them properly. If your vehicle has StabiliTrak®, your trailer brake system cannot tap into the vehicle’s hydraulic brake system.

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Driving with a Trailer

{CAUTION:

If you have a rear-most window open and you pull a trailer with your vehicle, carbon monoxide (CO) could come into your vehicle. You can not see or smell CO. It can cause unconsciousness or death. See Engine Exhaust on page 2-30. To maximize your safety when towing a trailer:

(cid:127) Have your exhaust system inspected for leaks, and make necessary repairs before starting on your trip.

(cid:127) Keep the rear-most windows closed.

If exhaust does come into your vehicle through a window in the rear or another opening, drive with your front, main heating or cooling system on and with the fan on any speed. This will bring fresh, outside air into your vehicle. Do not use the climate control setting for maximum air because it only recirculates the air inside your vehicle. See Climate Control System in the Index.

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Towing a trailer requires a certain amount of experience. Before setting out for the open road, you’ll want to get to know your rig. Acquaint yourself with the feel of handling and braking with the added weight of the trailer. And always keep in mind that the vehicle you are driving is now a good deal longer and not nearly as responsive as your vehicle is by itself. Before you start, check all trailer hitch parts and attachments, safety chains, electrical connector, lamps, tires and mirror adjustment. If the trailer has electric brakes, start your vehicle and trailer moving and then apply the trailer brake controller by hand to be sure the brakes are working. This lets you check your electrical connection at the same time. During your trip, check occasionally to be sure that the load is secure, and that the lamps and any trailer brakes are still working. Following Distance Stay at least twice as far behind the vehicle ahead as you would when driving your vehicle without a trailer. This can help you avoid situations that require heavy braking and sudden turns.

(cid:127) Passing You’ll need more passing distance up ahead when you’re towing a trailer. And, because you’re a good deal longer, you’ll need to go much farther beyond the passed vehicle before you can return to your lane. Backing Up Hold the bottom of the steering wheel with one hand. Then, to move the trailer to the left, just move that hand to the left. To move the trailer to the right, move your hand to the right. Always back up slowly and, if possible, have someone guide you. Making Turns Notice: Making very sharp turns while trailering could cause the trailer to come in contact with the vehicle. Your vehicle could be damaged. Avoid making very sharp turns while trailering. When you’re turning with a trailer, make wider turns than normal. Do this so your trailer won’t strike soft shoulders, curbs, road signs, trees or other objects. Avoid jerky or sudden maneuvers. Signal well in advance.

Turn Signals When Towing a Trailer When you tow a trailer, your vehicle has to have extra wiring and a heavy-duty turn signal (included in the optional trailering package). The arrows on your instrument panel will flash whenever you signal a turn or lane change. Properly hooked up, the trailer lamps will also flash, telling other drivers you’re about to turn, change lanes or stop. When towing a trailer, the arrows on your instrument panel will flash for turns even if the bulbs on the trailer are burned out. Thus, you may think drivers behind you are seeing your signal when they are not. It’s important to check occasionally to be sure the trailer bulbs are still working. Driving On Grades Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don’t shift down, you might have to use your brakes so much that they would get hot and no longer work well. You can tow in DRIVE (D). You may want to shift the transmission to THIRD (3) or a lower gear under heavy loads and/or hilly conditions.

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When towing at high altitude on steep uphill grades, consider the following: Engine coolant will boil at a lower temperature than at normal altitudes. If you turn your engine off immediately after towing at high altitude on steep uphill grades, your vehicle may show signs similar to engine overheating. To avoid this, let the engine run while parked (preferably on level ground) with the automatic transmission in PARK (P) for a few minutes before turning the engine off. If you do get the overheat warning, see Engine Overheating on page 5-26. Parking on Hills

But if you ever have to park your rig on a hill, here’s how to do it: 1. Apply your regular brakes, but don’t shift into

PARK (P) yet. Then turn your wheels into the curb if facing downhill or into traffic if facing uphill.

2. Have someone place chocks under the trailer

wheels.

3. When the wheel chocks are in place, release the regular brakes until the chocks absorb the load.

4. Reapply the regular brakes. Then apply your

parking brake and then shift to PARK (P).

{CAUTION:

You really should not park your vehicle, with a trailer attached, on a hill. If something goes wrong, your rig could start to move. People can be injured, and both your vehicle and the trailer can be damaged.

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5. Release the regular brakes. When You Are Ready to Leave After Parking on a Hill 1. Apply your regular brakes and hold the pedal down

while you: • start your engine, • shift into a gear, and • release the parking brake.

2. Let up on the brake pedal. 3. Drive slowly until the trailer is clear of the chocks. 4. Stop and have someone pick up and store the

chocks.

Maintenance When Trailer Towing Your vehicle will need service more often when you’re pulling a trailer. See the Maintenance Schedule for more on this. Things that are especially important in trailer operation are automatic transmission fluid (don’t overfill), engine oil, axle lubricant, belt, cooling system and brake system. Each of these is covered in this manual, and the Index will help you find them quickly. If you’re trailering, it’s a good idea to review these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight.

Trailer Wiring Harness The optional heavy-duty trailer wiring package includes a wiring harness, with a seven-pin connector at the rear of the vehicle and a four-wire harness assembly under the driver side of the instrument panel. The four-wire harness assembly comes without a connector. If your vehicle does not have a trailer hitch, the seven-wire harness assembly with connector is taped together and located in a frame pocket at the driver side rear left corner of the frame. If your vehicle has a trailer hitch, the seven-wire harness assembly with connector is attached to a bracket on the hitch platform. In both cases, the seven-wire harness has a connector and includes a 30-amp feed wire.

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The seven-wire harness connector contains the following trailer circuits: • Light Green: Back-up Lamps (10A fuse)** • White: Ground • Dark Blue: Trailer Brake Signal • Dark Green: Right Rear Stop and Turn Signal* • Red/Black Stripe: Battery Feed (30A Fuse) • Brown: Trailer Park Lamp Supply Voltage

(15A fuse)**

• Yellow: Left Rear Stop and Turn Signal *

The four-wire harness (without connector) contains the following circuits: • Black: Ground • Red/White: Battery Feed • Dark Blue: Trailer Brake Signal • Light Blue: CHMSL/Stoplamp Supply Voltage * If your vehicle is a cutaway with trailer provisions, a 15 amp fuse will be shared for both left/stop trailer turn and right/stop trailer turn signals. However, the cutaway lighting connector will have a 10 amp fuse for each signal. ** If your vehicle is a cutaway with trailer provisions, a 15 amp fuse will be shared for trailer park lamps and cutaway rear lighting connector park lamps. Also, a 10 amp fuse will be shared for trailer back-up lamps and cutaway rear lighting connector back-up lamps.

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Section 5

Service and Appearance Care

Service ............................................................5-3
Accessories and Modifications ..........................5-3
California Proposition 65 Warning .....................5-3
California Perchlorate Materials Requirements .....5-4
Doing Your Own Service Work .........................5-4
Adding Equipment to the Outside of

Your Vehicle ..............................................5-5
Fuel ................................................................5-5
Gasoline Octane ............................................5-6
Gasoline Specifications ....................................5-6
California Fuel ...............................................5-6
Additives .......................................................5-7
Fuel E85 (85% Ethanol) ..................................5-8
Fuels in Foreign Countries ...............................5-9
Filling the Tank ............................................5-10
Filling a Portable Fuel Container .....................5-12
Checking Things Under the Hood ....................5-12
Hood Release ..............................................5-13
Engine Compartment Overview .......................5-14
Engine Oil (Gasoline Engine) ..........................5-15
Engine Oil Life System ..................................5-18
Engine Air Cleaner/Filter ................................5-19
Automatic Transmission Fluid .........................5-20
Engine Coolant .............................................5-23
Radiator Pressure Cap ..................................5-26

Engine Overheating .......................................5-26
Cooling System ............................................5-28
Engine Fan Noise .........................................5-34
Power Steering Fluid .....................................5-34
Windshield Washer Fluid ................................5-35
Brakes ........................................................5-36
Battery ........................................................5-39
Jump Starting ...............................................5-40
All-Wheel Drive ..............................................5-44
Rear Axle .......................................................5-45
Front Axle ......................................................5-45
Noise Control System .....................................5-46

Tampering with Noise Control System

Prohibited .................................................5-46
Bulb Replacement ..........................................5-48
Halogen Bulbs ..............................................5-48
Headlamps ..................................................5-48
Front Turn Signal, Sidemarker and

Parking Lamps ..........................................5-50
Center High-Mounted Stoplamp (CHMSL) .........5-50
Taillamps .....................................................5-51
Replacement Bulbs .......................................5-52