2009 Chevrolet Avalanche Owners Manual

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provided by the child restraint manufacturer and refer to Securing a Child Restraint in the Right Front Seat Position on page 1-59. 5. If, after reinstalling the child restraint and restarting the vehicle, the on indicator is still lit, turn the vehicle off. Then slightly recline the vehicle seatback and adjust the seat cushion, if adjustable, to make sure that the vehicle seatback is not pushing the child restraint into the seat cushion. Also make sure the child restraint is not trapped under the vehicle head restraint. If this happens, adjust the head restraint. See Head Restraints on page 1-2. 6. Restart the vehicle. The passenger sensing system may or may not turn off the airbag for a child in a child restraint depending upon the child’s seating posture and body build. It is better to secure the child restraint in a rear seat. 1-73 If the Off Indicator is Lit for an Adult-Size Occupant If this happens, use the following steps to allow the system to detect that person and enable the right front passenger frontal airbag: 1. Turn the vehicle off. 2. Remove any additional material from the seat, such as blankets, cushions, seat covers, seat heaters, or seat massagers. 3. Place the seatback in the fully upright position. 4. Have the person sit upright in the seat, centered on the seat cushion, with legs comfortably extended. 5. Restart the vehicle and have the person remain in this position for two to three minutes after the on indicator is lit. If a person of adult-size is sitting in the right front passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. 1-74 Additional Factors Affecting System Operation Safety belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See “Safety Belts” and “Child Restraints” in the Index for additional information about the importance of proper restraint use. If the shoulder portion of the belt is pulled out all the way, the child restraint locking feature will be engaged. This may unintentionally cause the passenger sensing system to turn the airbag off for some adult size occupants. If this happens, let the belt go back all the way and start again. A thick layer of additional material, such as a blanket or cushion, or aftermarket equipment such as seat covers, seat heaters, and seat massagers can affect how well the passenger sensing system operates. We recommend that you not use seat covers or other aftermarket equipment except when approved by GM for your speciﬁc vehicle. See Adding Equipment to Your Airbag-Equipped Vehicle on page 1-77 for more information about modiﬁcations that can affect how the system operates. The on indicator may be lit if an object, such as a briefcase, handbag, grocery bag, laptop or other electronic device, is put on an unoccupied seat. If this is not desired remove the object from the seat. { CAUTION: Stowing of articles under the passenger seat or between the passenger seat cushion and seatback may interfere with the proper operation of the passenger sensing system. 1-75 Servicing Your Airbag-Equipped Vehicle Airbags affect how the vehicle should be serviced. There are parts of the airbag system in several places around the vehicle. Your dealer/retailer and the service manual have information about servicing the vehicle and the airbag system. To purchase a service manual, see Service Publications Ordering Information on page 7-15. { CAUTION: For up to 10 seconds after the ignition is turned off and the battery is disconnected, an airbag can still inﬂate during improper service. You can be injured if you are close to an airbag when it inﬂates. Avoid yellow connectors. They are probably part of the airbag system. Be sure to follow proper service procedures, and make sure the person performing work for you is qualiﬁed to do so. 1-76 Adding Equipment to Your Airbag-Equipped Vehicle Q: Is there anything I might add to or change about the vehicle that could keep the airbags from working properly? A: Yes. If you add things that change the vehicle’s frame, bumper system, height, front end or side sheet metal, they may keep the airbag system from working properly. Changing or moving any parts of the front seats, safety belts, the airbag sensing and diagnostic module, steering wheel, instrument panel, roof-rail airbag modules, ceiling headliner or pillar garnish trim, overhead console, front sensors, side impact sensors, rollover sensor module, or airbag wiring can affect the operation of the airbag system. In addition, the vehicle has a passenger sensing system for the right front passenger position, which includes sensors that are part of the passenger seat. The passenger sensing system may not operate properly if the original seat trim is replaced with non-GM covers, upholstery or trim, or with GM covers, upholstery or trim designed for a different vehicle. Any object, such as an aftermarket seat heater or a comfort enhancing pad or device, installed under or on top of the seat fabric, could also interfere with the operation of the passenger sensing system. This could either prevent proper deployment of the passenger airbag(s) or prevent the passenger sensing system from properly turning off the passenger airbag(s). See Passenger Sensing System on page 1-70. If you have any questions, call Customer Assistance. The phone numbers and addresses for Customer Assistance are in Step Two of the Customer Satisfaction Procedure in this manual. See Customer Satisfaction Procedure on page 7-2. If the vehicle has rollover roof-rail airbags, see Different Size Tires and Wheels on page 5-73 for additional important information. Q: Because I have a disability, I have to get my vehicle modiﬁed. How can I ﬁnd out whether this will affect my airbag system? A: If you have questions, call Customer Assistance. The phone numbers and addresses for Customer Assistance are in Step Two of the Customer Satisfaction Procedure in this manual. See Customer Satisfaction Procedure on page 7-2. In addition, your dealer/retailer and the service manual have information about the location of the airbag sensors, sensing and diagnostic module and airbag wiring. 1-77 Airbags The airbag system does not need regularly scheduled maintenance or replacement. Make sure the airbag readiness light is working. See Airbag Readiness Light on page 3-32 for more information. Notice: or broken, the airbag may not work properly. Do not open or break the airbag coverings. If there are any opened or broken airbag covers, have the airbag covering and/or airbag module replaced. For the location of the airbag modules, see What Makes an Airbag Inﬂate? on page 1-68. See your dealer/retailer for service. If an airbag covering is damaged, opened, Restraint System Check Checking the Restraint Systems Safety Belts Now and then, check the safety belt reminder light, safety belts, buckles, latch plates, retractors, and anchorages are all working properly. Look for any other loose or damaged safety belt system parts that might keep a safety belt system from doing its job. See your dealer/retailer to have it repaired. Torn or frayed safety belts may not protect you in a crash. They can rip apart under impact forces. If a belt is torn or frayed, get a new one right away. Make sure the safety belt reminder light is working. See Safety Belt Reminders on page 3-31 for more information. Keep safety belts clean and dry. See Care of Safety Belts on page 5-102. 1-78 If the vehicle has the LATCH system and it was being used during a crash, you may need new LATCH system parts. New parts and repairs may be necessary even if the safety belt or LATCH system (if equipped), was not being used at the time of the crash. If an airbag inﬂates, you will need to replace airbag system parts. See the part on the airbag system earlier in this section. Have the safety belt pretensioners checked if the vehicle has been in a crash, if the airbag readiness light stays on after the vehicle is started, or while you are driving. See Airbag Readiness Light on page 3-32. Replacing Restraint System Parts After a Crash { CAUTION: A crash can damage the restraint systems in your vehicle. A damaged restraint system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure your restraint systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible. If the vehicle has been in a crash, do you need new safety belts or LATCH system (if equipped) parts? After a very minor crash, nothing may be necessary. But the safety belt assemblies that were used during any crash may have been stressed or damaged. See your dealer/retailer to have the safety belt assemblies inspected or replaced. 1-79 ✍ NOTES 1-80 Section 2 Features and Controls Keys ...............................................................2-3 Remote Keyless Entry (RKE) System ................2-4 Remote Keyless Entry (RKE) System Operation ...................................................2-5 Remote Vehicle Start ......................................2-7 Doors and Locks ............................................2-10 Door Locks ..................................................2-10 Power Door Locks ........................................2-10 Delayed Locking ...........................................2-11 Programmable Automatic Door Locks ..............2-11 Rear Door Security Locks ..............................2-12 Lockout Protection ........................................2-13 Midgate® .....................................................2-13 Tailgate .......................................................2-23 Power Assist Steps .......................................2-24 Windows ........................................................2-25 Power Windows ............................................2-26 Sun Visors ...................................................2-27 Theft-Deterrent Systems ..................................2-28 Content Theft-Deterrent .................................2-28 PASS-Key® III+ Electronic Immobilizer .............2-30 PASS-Key® III+ Electronic Immobilizer Operation .................................................2-30 Starting and Operating Your Vehicle ................2-32 New Vehicle Break-In ....................................2-32 Ignition Positions ..........................................2-32 Retained Accessory Power (RAP) ...................2-34 Starting the Engine .......................................2-34 Adjustable Throttle and Brake Pedal ................2-35 Engine Coolant Heater ..................................2-36 Active Fuel Management™ .............................2-37 Automatic Transmission Operation ...................2-37 Tow/Haul Mode ............................................2-41 Four-Wheel Drive ..........................................2-43 Parking Brake ..............................................2-48 Shifting Into Park ..........................................2-50 Shifting Out of Park ......................................2-52 Parking Over Things That Burn .......................2-52 Engine Exhaust ............................................2-53 Running the Vehicle While Parked ..................2-54 Mirrors ...........................................................2-55 Manual Rearview Mirror .................................2-55 Automatic Dimming Rearview Mirror ................2-55 Outside Power Mirrors ...................................2-56 Outside Power Foldaway Mirrors .....................2-56 Park Tilt Mirrors ............................................2-57 Outside Convex Mirror ...................................2-57 Outside Heated Mirrors ..................................2-58 2-1 Section 2 Features and Controls Object Detection Systems ...............................2-58 Ultrasonic Rear Parking Assist (URPA) ...........................................2-58 Rear Vision Camera (RVC) ............................2-61 OnStar® System .............................................2-66 Universal Home Remote System ......................2-69 Universal Home Remote System Operation (With Three Round LED) ............................2-70 Storage Areas ................................................2-76 Glove Box ...................................................2-76 Cupholders ..................................................2-76 Center Overhead Console ..............................2-76 Front Armrest Storage Area ...........................2-76 Center Console Storage .................................2-76 Luggage Carrier ...........................................2-77 Cargo Cover Panels ......................................2-78 All-Weather Cargo Area .................................2-87 Top-Box Storage ..........................................2-92 Sunroof .........................................................2-93 2-2 Keys { CAUTION: Leaving children in a vehicle with the ignition key is dangerous for many reasons, children or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. The windows will function with the keys in the ignition and children could be seriously injured or killed if caught in the path of a closing window. Do not leave the keys in a vehicle with children. The key can be used for the ignition, all door locks, tailgate, and side storage boxes. See your dealer/retailer if a replacement key or additional key is needed. Notice: you may have to damage the vehicle to get in. Be sure you have spare keys. If you are locked out of your vehicle, contact roadside assistance. See Roadside Assistance Program on page 7-7 for more information. If you ever lock your keys in the vehicle, 2-3 If there is a decrease in the RKE operating range, try this: (cid:129) Check the distance. The transmitter may be too far from the vehicle. Stand closer during rainy or snowy weather. (cid:129) Check the location. Other vehicles or objects may be blocking the signal. Take a few steps to the left or right, hold the transmitter higher, and try again. (cid:129) Check the transmitter’s battery. See “Battery Replacement” later in this section. If the transmitter is still not working correctly, see your dealer/retailer or a qualiﬁed technician for service. Remote Keyless Entry (RKE) System The Remote Keyless Entry (RKE) system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry Canada. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause interference. 2. This device must accept any interference received, including interference that may cause undesired operation of the device. This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference. 2. This device must accept any interference received, including interference that may cause undesired operation of the device. Changes or modiﬁcations to this system by other than an authorized service facility could void authorization to use this equipment. 2-4 (cid:129) Remote Keyless Entry (RKE) System Operation The Remote Keyless Entry (RKE) transmitter functions work up to 195 feet (60 m) away from the vehicle. There are other conditions which can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2-4. With Remote Start (Without Remote Start Similar) / (Remote Vehicle Start): For vehicles with this feature, press / to start the engine from outside the vehicle using the RKE transmitter. See Remote Vehicle Start on page 2-7 for additional information. Q (Lock): Press to lock all the doors, including the tailgate. If enabled through the Driver Information Center (DIC), the turn signal lamps ﬂash once to indicate locking has occurred. If enabled through the DIC, the horn chirps when Q is pressed again within three seconds of the previous press of the lock button. See DIC Vehicle Customization (With DIC Buttons) on page 3-67 for additional information. Pressing Q arms the content theft-deterrent system. See Content Theft-Deterrent on page 2-28. K (Unlock): Press once to unlock only the driver door. If K is pressed again within three seconds, all remaining doors, including the tailgate, unlock. The interior lamps may come on and stay on for 20 seconds or until the ignition is turned on. 2-5 If enabled through the DIC, the turn signal lamps ﬂash twice to indicate unlocking has occurred. See DIC Vehicle Customization (With DIC Buttons) on page 3-67. If enabled through the DIC, the exterior lights turn on brieﬂy if it is dark enough outside. See “APPROACH LIGHTING” under DIC Vehicle Customization (With DIC Buttons) on page 3-67. Pressing K on the RKE transmitter disarms the content theft-deterrent system. See Content Theft-Deterrent on page 2-28. L (Vehicle Locator/Panic Alarm): Press and release to locate the vehicle. The turn signal lamps ﬂash and the horn sounds three times. Press and hold L for more than two seconds to activate the panic alarm. The turn signal lamps ﬂash and the horn sounds repeatedly for 30 seconds. The alarm turns off when the ignition is moved to ON/RUN or L is pressed again. The ignition must be in LOCK/OFF for the panic alarm to work. Programming Transmitters to the Vehicle Only RKE transmitters programmed to this vehicle will work. If a transmitter is lost or stolen, a replacement can be purchased and programmed through your dealer/retailer. When the replacement transmitter is programmed to this vehicle, all remaining transmitters must also be reprogrammed. Any lost or stolen transmitters will no longer work once the new transmitter is programmed. Each vehicle can have up to eight transmitters programmed to it. See “Relearn Remote Key” under DIC Operation and Displays (With DIC Buttons) on page 3-46 or DIC Operation and Displays (Without DIC Buttons) on page 3-52 for instructions on how to match RKE transmitters to your vehicle. Battery Replacement Replace the battery if the REPLACE BATTERY IN REMOTE KEY message displays in the DIC. See “REPLACE BATTERY IN REMOTE KEY” under DIC Warnings and Messages on page 3-58 for additional information. Notice: When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter. 2-6 Remote Vehicle Start Your vehicle may have a remote starting feature. This feature allows you to start the engine from outside of the vehicle. It may also start up the vehicle’s heating or air conditioning systems and rear window defogger. Normal operation of the system will return after the key is turned to the ON/RUN position. If your vehicle has an automatic climate control system, the climate control system will default to a heating or cooling mode depending on the outside temperatures. If your vehicle does not have an automatic climate control system, the system will turn on at the setting the vehicle was set to when the vehicle was last turned off. During a remote start, if your vehicle has an automatic climate control system and heated seats, the heated seats will turn on during colder outside temperatures and will shut off when the key is turned to ON/RUN. If your vehicle does not have an automatic climate control system, during remote start, you will need to manually turn the heated seats on and off. See Heated Seats on page 1-7 for additional information. 2-7 To replace the battery: 1. Separate the transmitter with a ﬂat, thin object inserted into the notch on the side. 2. Remove the old battery. Do not use a metal object. 3. Insert the new battery, positive side facing down. Replace with a CR2032 or equivalent battery. 4. Snap the transmitter back together. Laws in some communities may restrict the use of remote starters. For example, some laws may require a person using the remote start to have the vehicle in view when doing so. Check local regulations for any requirements on remote starting of vehicles. Do not use the remote start feature if your vehicle is low on fuel. Your vehicle may run out of fuel. If your vehicle has the remote start feature, the RKE transmitter functions will have an increased range of operation. However, the range may be less while the vehicle is running. There are other conditions which can affect the performance of the transmitter, see Remote Keyless Entry (RKE) System on page 2-4 for additional information. / (Remote Start): This button will be on the RKE transmitter if you have remote start. To start the vehicle using the remote start feature: 1. Aim the transmitter at the vehicle. 2. Press and release the transmitter’s lock button. The vehicle’s doors will lock. Immediately press and hold the transmitter’s remote start button until the turn signal lights ﬂash. If you cannot see the vehicle’s lights, press and hold the remote start button for two to four seconds. Pressing the remote start button again after the vehicle has started will turn the engine off. When the vehicle starts, the parking lamps will turn on and remain on while the vehicle is running. If the vehicle is left running it will automatically shut off after 10 minutes unless a time extension has been done. 3. If it is the ﬁrst remote start since the vehicle has been driven, repeat these steps, while the engine is still running, to extend the engine running time by 10 minutes. Remote start can be extended one time. After entering the vehicle during a remote start, insert and turn the key to RUN to drive the vehicle. 2-8 To manually shut off a remote start, do any of the following: (cid:129) Aim the RKE transmitter at the vehicle and press the remote start button until the parking lamps turn off. Turn on the hazard warning ﬂashers. Turn the ignition switch on and then off. The vehicle can be remote started two separate times between driving sequences. The engine will run for 10 minutes after each remote start. Or, you can extend the engine run time by another 10 minutes within the ﬁrst 10 minute remote start time frame, and before the engine stops. For example, if the lock button and then the remote start buttons are pressed again after the vehicle has been running for ﬁve minutes, 10 minutes are added, allowing the engine to run for 15 minutes. The additional ten minutes are considered a second remote vehicle start. Once two remote starts, or a single remote start with one time extension has been done, the vehicle must be started with the key. After the key is removed from the ignition, the vehicle can be remote started again. The vehicle cannot be remote started if the key is in the ignition, the hood is not closed, or if there is an emission control system malfunction and the check engine light comes on. Also, the engine will turn off during a remote vehicle start if the coolant temperature gets too high or if the oil pressure gets low. Vehicles that have the remote vehicle start feature are shipped from the factory with the remote vehicle start system enabled. The system may be enabled or disabled through the DIC. See “REMOTE START” under DIC Vehicle Customization (With DIC Buttons) on page 3-67 for additional information. If your vehicle does not have DIC buttons, see your dealer/retailer to enable or disable the remote vehicle start system. Remote Start Ready If your vehicle does not have the remote vehicle start feature, it may have the remote start ready feature. This feature allows your dealer/retailer to add the manufacturer’s remote vehicle start feature. See your dealer/retailer if you would like to add the manufacturer’s remote vehicle start feature to your vehicle. 2-9 (cid:129) (cid:129) There are several ways to lock and unlock the doors. To lock or unlock the door from the outside, use the remote keyless entry (RKE) transmitter or the key. To lock or unlock the door from the inside, slide the manual lever up or down, or use the power door locks switch. Power Door Locks On vehicles with power door locks the switches are located on the front doors. " (Unlock): Press to unlock the doors. Q (Lock): Remove the key from the ignition and press to lock the doors. Doors and Locks Door Locks { CAUTION: Unlocked doors can be dangerous. (cid:129) Passengers, especially children, can easily open the doors and fall out of a moving vehicle. When a door is locked, the handle will not open it. You increase the chance of being thrown out of the vehicle in a crash if the doors are not locked. So, wear safety belts properly and lock the doors whenever you drive. (cid:129) Young children who get into unlocked vehicles may be unable to get out. A child can be overcome by extreme heat and can suffer permanent injuries or even death from heat stroke. Always lock your vehicle whenever you leave it. (cid:129) Outsiders can easily enter through an unlocked door when you slow down or stop your vehicle. Locking your doors can help prevent this from happening. 2-10 Programmable Automatic Door Locks Vehicles with an automatic lock/unlock feature enable you to program the vehicle’s power door locks. You can program this feature through the Driver Information Center (DIC). See DIC Vehicle Customization (With DIC Buttons) on page 3-67 for more information on DIC programming. Delayed Locking When locking the doors with the power lock switch or the Remote Keyless Entry (RKE) transmitter and a door is open, the doors will lock ﬁve seconds after the last door is closed. You will hear three chimes to signal that the delayed locking feature is in use. Pressing the power lock switch or the lock button on the RKE transmitter twice will override the delayed locking feature and immediately lock all the doors. You can turn the delayed locking feature off or back on again by doing the following: 1. Press and hold the power door lock switch in the lock position. 2. Press unlock twice on the RKE transmitter. This feature will not operate if the key is in the ignition. You can also program this feature using the Driver Information Center (DIC). See “Door Lock Delay” under DIC Vehicle Customization (With DIC Buttons) on page 3-67. 2-11 To set the locks, do the following: 1. Insert the key into the security lock slot and turn it so the slot is in the horizontal position. 2. Close the door. When you want to open a rear door when the security lock is on, do the following: 1. Unlock the door by lifting the rear door manual lock, using the power door lock switch, or the Remote Keyless Entry (RKE) transmitter, if the vehicle has one. 2. Open the door from the outside. To cancel the rear door security lock, do the following: 1. Unlock the door and open it from the outside. 2. Insert the key into the security lock slot and turn it so the slot is in the vertical position. Rear Door Security Locks Your vehicle has rear door security locks. These prevent passengers from opening the rear doors from the inside. The rear door security locks are located on the inside edge of each rear door. The rear doors must be open to access them. The label showing lock and unlock positions is located near the lock. 2-12 Lockout Protection This feature protects you from locking your key in the vehicle when the key is in the ignition and a door is open. If the power lock switch is pressed when a door is open and the key is in the ignition, all of the doors will lock and then the driver’s door will unlock. Midgate® { CAUTION: It can be dangerous to drive with the cargo area covered and the tailgate and the Midgate® open because carbon monoxide (CO) gas can come into your vehicle. You can not see or smell CO. It can cause unconsciousness and even death. If you must drive with the cargo covers on and the tailgate and Midgate® open or if electrical wiring or other cable connections must pass through the seal between the body and the Midgate®: (cid:129) Make sure all windows are shut. (cid:129) Turn the fan on your heating or cooling system to its highest speed on the setting that brings in outside air. This will force outside air into your vehicle. See Dual Automatic Climate Control System on page 3-23. If you have air outlets on or under the instrument panel, open them all the way. See Engine Exhaust on page 2-53. 2-13 (cid:129) Midgate® Operation Your vehicle is equipped with a Midgate® and a removable rear glass panel. The Midgate® allows you to extend the length of your vehicle’s cargo area. The following are the main components of the Midgate® system: A. Latch Levers B. Grab Handles C. Glass-Catch E. Window Retaining Tabs F. Midgate® Release Handle Release Button G. Window Alignment D. Glass Lock Knobs Arrows 2-14 To remove the rear glass do the following: 1. Fold the rear seats. See Rear Seat Operation on page 1-13 for more information. The front seats may have to be moved forward slightly to allow the rear seats to fold completely. Although the rear glass can be removed without folding the rear seats, you will not be able to access the rear glass storage pocket. Be sure to fold the seats before removing the rear glass. Rear Glass Removal and Storage { CAUTION: If the removable rear glass is not stored properly, it could be thrown about the vehicle in a crash or sudden maneuver. People in the vehicle could be injured. Whenever you store the rear glass in the vehicle, always be sure that it is stored securely in the Midgate® storage pocket. Do not remove the rear glass when the rear defroster is on. If you remove the rear glass with the rear defroster on, you may see a discharge spark coming from the latch area. 2-15 2. Squeeze and pull down the latch levers (A), located near the upper corners of the rear glass, to unlatch. Once unlatched, the glass-catch release button (C) will catch the rear glass and prevent it from falling forward. 3. While holding the rear glass in place, press the glass-catch release button (C) and pull the top of the rear glass toward you using the grab handle(s) (B) located at the top of the rear glass. 2-16 4. With the rear glass tilted toward you, lift it out from the lower window frame channel. Use the grab handles to assist you in removing the rear glass. 5. Load the rear glass into the storage pocket in the Midgate®, guiding the lower edge of the rear glass behind the three rear glass retaining tabs (E). Hold the rear glass ﬂat against the storage pocket, with grab handles facing you, until the next step. 2-17 6. Turn both glass lock knobs (D), located at both top corners of the storage pocket, to the locked position. Push in on the corner of the rear glass to allow the lock knob to engage more easily. Once both glass lock knobs are in the locked position, the rear glass is securely stored. 7. Push both latch levers up to the locked position. You should hear a click when each latch lever locks correctly. The rear seats can be returned to the normal position when the rear glass is out and stored properly in the storage pocket. 2-18 Reinstalling the Rear Glass To reinstall the rear glass, do the following: 1. Squeeze and pull down the latch levers (A), located near the upper corners of the rear glass, to unlatch. 2. Hold the rear glass in place with one hand and turn the glass lock knobs, located at both top corners of the glass storage pocket, to the unlocked position. 3. Pull the rear glass out from the storage pocket using the grab handles. 4. With the rear glass tilted at an angle, place the bottom edge in the lower channel of the window frame. 2-19 Be sure to align the rear glass side-to-side using the alignment arrows (G). 5. Apply a ﬁrm downward pressure and then push the rear glass ﬂat against the window frame. Use the grab handles at the top of the rear glass to assist you. 6. Push the rear glass ﬂat against the window frame and push each latch lever up until it locks. You should hear a click when each latch lever locks correctly. Lowering the Midgate® with the Rear Glass in Place The Midgate® can be lowered to allow the cargo area of your vehicle to extend into the cab. The rear glass can be either installed in its normal position, or it can be removed and stored in the rear glass storage pocket. 2-20 To lower the Midgate®, do the following: 1. Fold the rear seats. The front seats might have to be moved forward slightly to allow the rear seats to fold. See Rear Seat Operation on page 1-13 for more information. 3. Lower the Midgate® until it is ﬂat. Rear Glass in Normal Position 2. Standing outside of the vehicle, hold the Midgate® securely so it does not fall forward. Turn the Midgate® handle clockwise and pull the Midgate® toward you. 2-21 Lowering the Midgate® with the Rear Glass in the Storage Pocket Rear Glass Stored in Glass Storage Pocket Midgate® Lowered with Crossbar Attached This procedure works the same as the procedure described previously, but when you lower the Midgate® with the rear glass in the stored position, you will notice that the entire crossbar will lower with the Midgate®. This is completely normal; however, since the crossbar lowers with the Midgate®, it will be heavier. As you lower the Midgate® be ready for the extra weight and do not let the Midgate® fall as you lower it. 2-22 Use the Remote Keyless Entry (RKE) transmitter or power door lock switch to lock and unlock the tailgate. Open the tailgate by lifting up on its handle while pulling the tailgate toward you. To shut the tailgate, push it ﬁrmly upward until it latches. Push and pull on the tailgate to be sure it is latched securely. Tailgate Removal The tailgate is not to be removed. This may cause damage to electrical connector resulting in loss of lock/unlock and rear vision camera function. Raising the Midgate® To return the Midgate® to its normal position, raise the Midgate® up with a ﬁrm swinging motion until it latches into place securely. This will help to ensure that the Midgate® closes with enough force to engage the latches. If the rear glass is removed and you would like to put it back, do so using the instructions given previously. Tailgate { CAUTION: It is extremely dangerous to ride on the tailgate, even when the vehicle is operated at low speeds. People riding on the tailgate can easily lose their balance and fall in response to vehicle maneuvers. Falling from a moving vehicle may result in serious injuries or death. Do not allow people to ride on the tailgate. Be sure everyone in your vehicle is in a seat and using a safety belt properly. 2-23 Power Assist Steps Your vehicle may have power assist steps. The power assist steps automatically extend from beneath the vehicle on the side in which the door has been opened. Once the door is closed, the assist steps automatically move back under the vehicle after a brief delay. The vehicle must not be moving for the assist steps to extend or retract. The switch used to disable the power assist steps is located on the center console below the climate control system. The assist steps cannot be disabled in the extended position. 2-24 Windows { CAUTION: Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. 2-25 Power Windows { CAUTION: Leaving children in a vehicle with the keys is dangerous for many reasons, children or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. The windows will function and they could be seriously injured or killed if caught in the path of a closing window. Do not leave keys in a vehicle with children. When there are children in the rear seat use the window lockout button to prevent unintentional operation of the windows. The power window controls are located on each of the side doors. Driver’s Side shown The driver’s door also has switches that control the passenger and rear windows. The power windows work when the ignition has been turned to ACC/ACCESSORY, ON/RUN or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP) on page 2-34. Press the switch to lower the window. Pull up on the front edge of the switch to raise the window. 2-26 Express-Down Windows Windows with an express-down feature allow the windows to be lowered without holding the switch. Press down fully on the window switch, then release, to activate the express-down mode. The express-down mode can be canceled at any time by pulling up on the front edge of the switch. Window Lockout o (Window Lockout): The window lockout switch is located with the power window switches on the driver’s door armrest. This feature prevents the rear passenger windows from operating, except from the driver’s position. Press the switch to turn the lockout feature on or off. An indicator light will come on to show the lockout feature is on. Sun Visors Sun Visors with Slide Rod Your vehicle may have this feature. Pull the sun visor down to block glare. Detach the sun visor from the center mount and slide it along the rod from side-to-side to cover the driver or passenger side of the front window. Swing the sun visor to the side to cover the side window. It can also be moved along the rod from side-to-side in this position. Sun Visors with Fixed Rod and Pull-out Extension Your vehicle may have this feature. Pull the sun visor down to block glare. Pull the sun visor extender out for additional coverage. Detach the sun visor from the center mount and swing it to the side to cover the side window. Lighted Visor Vanity Mirror Your vehicle has lighted visor vanity mirrors on both the driver’s and passenger’s sun visors. Pull the sun visor down and lift the mirror cover to turn the lamps on. 2-27 Theft-Deterrent Systems Vehicle theft is big business, especially in some cities. This vehicle has theft-deterrent features, however, they do not make it impossible to steal. Content Theft-Deterrent Your vehicle has a content theft-deterrent alarm system. This is the security light. To arm the theft-deterrent system: 1. Open the door. 2. Lock the door with the Remote Keyless Entry (RKE) transmitter or the power door lock switch. The security light will come on to inform the driver the system is arming. If a door is open when the doors are locked, the security light will ﬂash. If the delayed locking feature is turned on, the theft-deterrent system will not start the arming process until the last door is closed and the delay timer has expired. See Delayed Locking on page 2-11. 3. Close all doors. The security light should go off after about 30 seconds. The alarm is not armed until the security light goes off. The content theft deterrent system does not sense if the midgate or tailgate are open or ajar, therefore, vehicle contents may not be protected if the midgate is left open or ajar. 2-28 If a locked door is opened without using the RKE transmitter, a ten second pre-alarm will occur. The horn will chirp and the lights will ﬂash. If the key is not placed in the ignition and turned to START or the door is not unlocked by pressing the unlock button on the RKE transmitter during the ten second pre-alarm, the alarm will go off. Your vehicle’s headlamps will ﬂash and the horn will sound for about two minutes, then will turn off to save the battery power. The theft-deterrent system will not activate if the doors are locked with the vehicle’s key or the manual door lock. It activates only if you use the power door lock switch with the door open or the RKE transmitter. You should also remember that you can start your vehicle with the correct ignition key if the alarm has been set off. To avoid setting off the alarm by accident: If you do not want to activate the theft-deterrent system, the vehicle should be locked with the door key after the doors are closed. (cid:129) Always unlock the doors with the RKE transmitter. Unlocking a door any other way will set off the alarm if it is armed. If you set off the alarm by accident, press unlock on the RKE transmitter or place the key in the ignition and turn it to START to turn off the alarm. The alarm will not stop if you try to unlock a door any other way. Testing the Alarm To test the alarm: 1. From inside the vehicle, lower the driver’s window and open the driver’s door. 2. Activate the system by locking the doors with the power door lock switch while the door is open, or with the RKE transmitter. 3. Get out of the vehicle, close the door and wait for the security light to go out. 4. Then reach in through the window, unlock the door with the manual door lock and open the door. This should set off the alarm. While the alarm is set, the power door unlock switch will not work. If the alarm does not sound when it should but the headlamps ﬂash, check to see if the horn works. The horn fuse may be blown. To replace the fuse, see Instrument Panel Fuse Block on page 5-109 and Underhood Fuse Block on page 5-112. If the alarm does not sound or the headlamps do not ﬂash, the vehicle should be serviced by your dealer/retailer. 2-29 (cid:129) PASS-Key® III+ Electronic Immobilizer The PASS-Key III+ system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry Canada. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference. 2. This device must accept any interference received, including interference that may cause undesired operation of the device. Changes or modiﬁcations to this system by other than an authorized service facility could void authorization to use this equipment. PASS-Key III+ uses a radio frequency transponder in the key that matches a decoder in the vehicle. PASS-Key® III+ Electronic Immobilizer Operation Your vehicle has PASS-Key® III+ (Personalized Automotive Security System) theft-deterrent system. PASS-Key® III+ is a passive theft-deterrent system. The system is automatically armed when the key is removed from the ignition. The system is automatically disarmed when the key is turned to ON/RUN, ACC/ACCESSORY or START from the LOCK/OFF position. You do not have to manually arm or disarm the system. The security light will come on if there is a problem with arming or disarming the theft-deterrent system. When the PASS-Key® III+ system senses that someone is using the wrong key, it prevents the vehicle from starting. Anyone using a trial-and-error method to start the vehicle will be discouraged because of the high number of electrical key codes. If the engine does not start and the security light on the instrument panel cluster comes on when trying to start the vehicle, there may be a problem with your theft-deterrent system. Turn the ignition off and try again. 2-30 If the engine still does not start, and the key appears to be undamaged, try another ignition key. At this time, you may also want to check the fuse, see Fuses and Circuit Breakers on page 5-108. If the engine still does not start with the other key, your vehicle needs service. If your vehicle does start, the ﬁrst key may be faulty. See your dealer/retailer who can service the PASS-Key® III+ to have a new key made. In an emergency, contact Roadside Assistance. It is possible for the PASS-Key® III+ decoder to learn the transponder value of a new or replacement key. Up to 10 keys may be programmed for the vehicle. The following procedure is for programming additional keys only. If all the currently programmed keys are lost or do not operate, you must see your dealer/retailer or a locksmith who can service PASS-Key® III+ to have keys made and programmed to the system. See your dealer/retailer or a locksmith who can service PASS-Key® III+ to get a new key blank that is cut exactly as the ignition key that operates the system. To program the new additional key: 1. Verify that the new key has a 1 stamped on it. 2. Insert the original, already programmed, key in the ignition and start the engine. If the engine will not start, see your dealer/retailer for service. 3. After the engine has started, turn the key to LOCK/OFF, and remove the key. 4. Insert the new key to be programmed and turn it to the ON/RUN position within ﬁve seconds of turning the ignition to the LOCK/OFF position in Step 3. The security light will turn off once the key has been programmed. 5. Repeat Steps 1 through 4 if additional keys are to be programmed. If you lose or damage your PASS-Key® III+ key, see your dealer/retailer or a locksmith who can service PASS-Key® III+ to have a new key made. Do not leave the key or device that disarms or deactivates the theft deterrent system in the vehicle. 2-31 Ignition Positions The ignition switch has four different positions. To shift out of P (Park), the ignition must be in ON/RUN or ACC/ACCESSORY and the regular brake pedal must be applied. Starting and Operating Your Vehicle New Vehicle Break-In Notice: The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: (cid:129) Keep your speed at 55 mph (88 km/h) or less for the ﬁrst 500 miles (805 km). (cid:129) Do not drive at any one constant speed, fast or slow, for the ﬁrst 500 miles (805 km). Do not make full-throttle starts. Avoid downshifting to brake or slow the vehicle. (cid:129) Avoid making hard stops for the ﬁrst 200 miles (322 km) or so. During this time the new brake linings are not yet broken in. Hard stops with new linings can mean premature wear and earlier replacement. Follow this breaking-in guideline every time you get new brake linings. (cid:129) Do not tow a trailer during break-in. See Towing a Trailer on page 4-47 for the trailer towing capabilities of the vehicle and more information. Following break-in, engine speed and load can be gradually increased. 2-32 A (LOCK/OFF): This position locks the ignition. It also locks the transmission on automatic transmission vehicles. The key can be removed in LOCK/OFF. On vehicles with an automatic transmission, the shift lever must be in P (Park) to turn the ignition switch to LOCK/OFF. The steering can bind with the wheels turned off center. If this happens, move the steering wheel from right to left while turning the key to ACC/ACCESSORY. If this doesn’t work, then the vehicle needs service. Notice: Using a tool to force the key to turn in the ignition could cause damage to the switch or break the key. Use the correct key, make sure it is all the way in, and turn it only with your hand. If the key cannot be turned by hand, see your dealer/retailer. B (ACC/ACCESSORY): This position lets things like the radio and the windshield wipers operate while the engine is off. Use this position if the vehicle must be pushed or towed. C (ON/RUN): This position can be used to operate the electrical accessories and to display some instrument panel cluster warning and indicator lights. The switch stays in this position when the engine is running. The transmission is also unlocked in this position on automatic transmission vehicles. If you leave the key in the ACC/ACCESSORY or ON/RUN position with the engine off, the battery could be drained. You may not be able to start the vehicle if the battery is allowed to drain for an extended period of time. D (START): This is the position that starts the engine. When the engine starts, release the key. The ignition switch returns to ON/RUN for driving. A warning tone will sound when the driver door is opened, the ignition is in ACC/ACCESSORY or LOCK/OFF and the key is in the ignition. 2-33 Retained Accessory Power (RAP) The following vehicle accessories can be used for up to 10 minutes after the engine is turned off: (cid:129) Audio System (cid:129) Power Windows (cid:129) OnStar® System (if equipped) (cid:129) Sunroof (if equipped) These features work when the key is in ON/RUN or ACC/ACCESSORY. Once the key is turned from ON/RUN to LOCK/OFF, the windows and sunroof continue to work up to 10 minutes until any door is opened. The radio continues to work for up to 10 minutes or until the driver door is opened. Starting the Engine Move the shift lever to P (Park) or N (Neutral). The engine will not start in any other position. To restart the engine when the vehicle is already moving, use N (Neutral) only. Notice: Do not try to shift to P (Park) if the vehicle is moving. If you do, you could damage the transmission. Shift to P (Park) only when the vehicle is stopped. Starting Procedure 1. With your foot off the accelerator pedal, turn the ignition to START. When the engine starts, let go of the key. The idle speed will slow down as the engine warms. Do not race the engine immediately after starting it. Operate the engine and transmission gently to allow the oil to warm up and lubricate all moving parts. The vehicle has a Computer-Controlled Cranking System. This feature assists in starting the engine and protects components. If the ignition key is turned to the START position, and then released when the engine begins cranking, the engine will continue cranking for a few seconds or until the vehicle starts. If the engine does not start and the key is held in START, cranking will be stopped after 15 seconds to prevent cranking motor damage. To prevent gear damage, this system also prevents cranking if the engine is already running. Engine cranking can be stopped by turning the ignition switch to the ACC/ ACCESSORY or LOCK/OFF position. Notice: Cranking the engine for long periods of time, by returning the key to the START position immediately after cranking has ended, can overheat and damage the cranking motor, and drain the battery. Wait at least 15 seconds between each try, to let the cranking motor cool down. 2-34 2. If the engine does not start after 5-10 seconds, especially in very cold weather (below 0°F or −18°C), it could be ﬂooded with too much gasoline. Try pushing the accelerator pedal all the way to the ﬂoor and holding it there as you hold the key in START for up to a maximum of 15 seconds. Wait at least 15 seconds between each try, to allow the cranking motor to cool down. When the engine starts, let go of the key and accelerator. If the vehicle starts brieﬂy but then stops again, repeat these steps. This clears the extra gasoline from the engine. Do not race the engine immediately after starting it. Operate the engine and transmission gently until the oil warms up and lubricates all moving parts. Notice: The engine is designed to work with the electronics in the vehicle. If you add electrical parts or accessories, you could change the way the engine operates. Before adding electrical equipment, check with your dealer/retailer. If you do not, the engine might not perform properly. Any resulting damage would not be covered by the vehicle warranty. Adjustable Throttle and Brake Pedal On vehicles with this feature, you can change the position of the throttle and brake pedals. No adjustment to the pedals can be made when the vehicle is in R (Reverse) or while using the cruise control. The switch used to adjust the pedals is located on the instrument panel below the climate control system. Press the arrow at the bottom of the switch to move the pedals closer to your body. Press the arrow at the top of the switch to move the pedals away from your body. Before you start driving, fully press the brake pedal to conﬁrm the adjustment is right for you. While driving, make only small adjustments. 2-35 The vehicle may have a memory function which lets pedal settings be saved and recalled. See Memory Seat, Mirrors, and Pedals on page 1-8 for more information. Engine Coolant Heater The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below 0°F (− 18°C). Vehicles with an engine heater should be plugged in at least four hours before starting. An internal thermostat in the plug-end of the cord may exist which will prevent engine coolant heater operation at temperatures above 0°F (−18°C). To Use the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. The cord is located on the driver’s side of the engine compartment, near the power steering ﬂuid reservoir. 3. Plug the cord into a normal, grounded 110-volt AC outlet. { CAUTION: Plugging the cord into an ungrounded outlet could cause an electrical shock. Also, the wrong kind of extension cord could overheat and cause a ﬁre. You could be seriously injured. Plug the cord into a properly grounded three-prong 110-volt AC outlet. If the cord will not reach, use a heavy-duty three-prong extension cord rated for at least 15 amps. 4. Before starting the engine, be sure to unplug and store the cord as it was before to keep it away from moving engine parts. If you do not, it could be damaged. The length of time the heater should remain plugged in depends on several factors. Ask a dealer/retailer in the area where you will be parking the vehicle for the best advice on this. 2-36 Active Fuel Management™ Vehicles with V8 engines may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on the driving conditions. When less power is required, such as cruising at a constant vehicle speed, the system will operate in the half cylinder mode, allowing the vehicle to achieve better fuel economy. When greater power demands are required, such as accelerating from a stop, passing, or merging onto a freeway, the system will maintain full-cylinder operation. If your vehicle has an Active Fuel Management™ indicator, see DIC Operation and Displays (With DIC Buttons) on page 3-46 or DIC Operation and Displays (Without DIC Buttons) on page 3-52 for more information on using this display. Automatic Transmission Operation The vehicle has a Hydra-Matic® 6L80 automatic transmission, and has an electronic shift position indicator within the instrument panel cluster. The electronic shift position indicator displays when the shift lever is moved out of P (Park). There are several different positions for the shift lever. See “Range Selection Mode” later in this section. 2-37 R (Reverse): Use this gear to back up. Notice: Shifting to R (Reverse) while the vehicle is moving forward could damage the transmission. The repairs would not be covered by the vehicle warranty. Shift to R (Reverse) only after the vehicle is stopped. To rock the vehicle back and forth to get out of snow, ice, or sand without damaging the transmission, see If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow on page 4-32. N (Neutral): In this position, the engine does not connect with the wheels. To restart the engine when the vehicle is already moving, use N (Neutral) only. Also, use N (Neutral) when the vehicle is being towed. P (Park): This position locks your rear wheels. It is the best position to use when you start the engine because the vehicle cannot move easily. When parked on a hill, especially when the vehicle has a heavy load, you may notice an increase in the effort to shift out of P (Park). See Torque Lock (Automatic Transmission) under Shifting Into Park on page 2-50 for more information. { CAUTION: It is dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake ﬁrmly set. The vehicle can roll. Do not leave the vehicle when the engine is running unless you have to. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, always set the parking brake and move the shift lever to P (Park). See Shifting Into Park on page 2-50. If you are pulling a trailer, see Towing a Trailer on page 4-47. 2-38 { CAUTION: Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is ﬁrmly on the brake pedal, the vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while the engine is running at high speed. Notice: Shifting out of P (Park) or N (Neutral) with the engine running at high speed may damage the transmission. The repairs would not be covered by the vehicle warranty. Be sure the engine is not running at high speed when shifting the vehicle. D (Drive): This position is for normal driving. It provides the best fuel economy for the vehicle. If you need more power for passing, and you are: (cid:129) Going less than about 35 mph (55 km/h), push the accelerator pedal about halfway down. (cid:129) Going about 35 mph (55 km/h) or more, push the accelerator all the way down. D (Drive) can be used when towing a trailer, carrying a heavy load, driving on steep hills, or for off-road driving. You may want to shift the transmission to a lower gear selection if the transmission shifts too often. Downshifting the transmission in slippery road conditions could result in skidding, see “Skidding” under Loss of Control on page 4-11 When temperatures are very cold, the Hydra-Matic® Automatic Transmission’s gear shifting may be delayed providing more stable shifts until the engine warms up. Shifts may be more noticeable with a cold transmission. This difference in shifting is normal. M (Manual Mode): This position lets drivers select the range of gears appropriate for current driving conditions. See Range Selection Mode later in this section. Notice: Spinning the tires or holding the vehicle in one place on a hill using only the accelerator pedal may damage the transmission. The repair will not be covered by the vehicle warranty. If you are stuck, do not spin the tires. When stopping on a hill, use the brakes to hold the vehicle in place. 2-39 The vehicle has a shift stabilization feature that adjusts the transmission shifting to the current driving conditions in order to reduce rapid upshifts and downshifts. This shift stabilization feature is designed to determine, before making an upshift, if the engine will be able to maintain vehicle speed by analyzing things such as throttle position, vehicle load, and hill grade. If the shift stabilization feature determines that a current vehicle speed cannot be maintained, the transmission does not upshift and instead holds the current gear. In some cases, this may appear to be a delayed shift, however the transmission is operating normally. The vehicle’s transmission uses adaptive shift controls. Adaptive shift controls continually compares key shift parameters to pre-programmed ideal shift conditions stored in the transmissions computer. The transmission constantly makes adjustments to improve vehicle performance according to the way the vehicle is being used, such as with a heavy load. During this adaptive shift controls process, some shifts may feel different as the transmission determines the best settings for a particular shift. 2-40 Range Selection Mode On vehicles with a Range Selection Mode, this feature may be used to control the vehicle’s transmission. To use this feature, do the following: 1. Move the shift lever to the M (Manual Mode). 2. Press the plus/minus button, to upshift or downshift selecting the desired range of gears for current driving conditions. When in M (Manual Mode) a number displays next to the M, indicating the current gear that has been selected. The number displayed in the gear indicator is the highest gear that can be used. However, the vehicle can automatically shift to lower gears as it adjusts to driving conditions. This means that all gears below that number are available. When 5 (Fifth) is selected, 1 (First) through 5 (Fifth) gears are automatically shifted by the vehicle, but 6 (Sixth) cannot be used until the plus/minus button located on the steering column lever is used to change to the gear. Range Selection Mode controls the vehicle and engine speed while driving down a hill or towing a trailer, by allowing you to select a desired range of gears. Grade Braking is not available when the Range Selection Mode is active. See Tow/Haul Mode on page 2-41 for more information. While using the Range Selection Mode, Cruise Control and the Tow/Haul mode can be used. Tow/Haul Mode The vehicle has a tow/haul mode. The tow/haul mode adjusts the transmission shift pattern to reduce shift cycling, providing increased performance, vehicle control, and transmission cooling while towing or hauling heavy loads. Press the button located on the end of the shift lever to turn the tow/haul on or off. While the tow/haul is on, a light on the instrument panel cluster comes on. See Tow/Haul Mode Light on page 3-44 for more information. Also see “Tow Haul Mode” under Towing a Trailer on page 4-47 for more information. 2-41 Cruise Grade Braking Cruise Grade Braking assists when driving on a downhill grade. It maintains vehicle speed by automatically implementing a shift schedule that uses the engine and the transmission to slow the vehicle. Cruise Grade Braking operates while Cruise Control is engaged in Tow/Haul mode to assist in maintaining vehicle speed under loaded vehicle conditions. It utilizes vehicle acceleration and deviation from desired speed to determine the correct gear for the operating condition. If vehicle speed is above the desired speed the transmission will downshift to slow the vehicle. If vehicle speed is near or below desired speed the trans will upshift, allowing vehicle speed to increase. While in the Range Select Mode (RSM) mode, cruise grade braking is not available. See Automatic Transmission Operation on page 2-37. Grade Braking The Grade Braking shift modes can be activated by pressing the button on the end of the shift control lever. While in Range Selection Mode, Grade Braking is deactivated allowing the driver to select a desired range of gears. Grade Braking is only active while the Tow/Haul Mode is selected and you are not in the Range Selection Mode. See “Tow/Haul Mode listed previously and Automatic Transmission Operation on page 2-37 for more information on the Range Selection Mode. Grade Braking assists in maintaining desired vehicle speeds when driving on downhill grades by automatically implementing a shift schedule that utilizes the engine and transmission to slow the vehicle. This reduces wear on the braking system and increases control of the vehicle. Grade Braking monitors vehicle speed, acceleration, engine torque and brake pedal usage. Using this information, it detects when the truck is on a downhill grade and the driver desires to slow the vehicle by pressing the brake. Also see Towing a Trailer on page 4-47 for more information. 2-42 Four-Wheel Drive If the vehicle has four-wheel drive, you can send the engine’s driving power to all four wheels for extra traction. Read the following before using four-wheel drive. Notice: Driving on clean, dry pavement in Four-Wheel-Drive High or Four-Wheel-Drive Low for an extended period of time may cause premature wear on your vehicle’s powertrain. Do not drive on clean, dry pavement in Four-Wheel-Drive High or Four-Wheel-Drive Low for extended periods of time. While driving on clean dry pavement and during tight turns, you may experience a vibration in the steering system. The vehicle has StabiliTrak®. Shifting into Four-Wheel-Drive Low will turn Traction Control and StabiliTrak® off. See StabiliTrak® System on page 4-6. Front Axle The front axle engages and disengages automatically when you shift the transfer case. Some delay for the axle to engage or disengage is normal. Automatic Transfer Case The transfer case knob is located to the left of the instrument panel cluster. Use this dial to shift into and out of four-wheel drive. You can choose among ﬁve driving settings: Indicator lights in the switches show you which setting you are in. The indicator lights will come on brieﬂy when you turn on the ignition and the last chosen setting will stay on. If the lights do not come on, you should take the vehicle to your dealer/retailer for service. An indicator light will ﬂash while shifting. It will stay on when the shift is completed. If for some reason the transfer case cannot make a requested shift, it will return to the last chosen setting. 2-43 2 m (Two-Wheel Drive High): This setting is used for driving in most street and highway situations. The front axle is not engaged in two-wheel drive. This setting also provides the best fuel economy. AUTO (Automatic Four-Wheel Drive): This setting is ideal for use when road surface traction conditions are variable. When driving your vehicle in AUTO, the front axle is engaged, but the vehicle’s power is primarily sent to the rear wheels. When the vehicle’s software determines a need for more traction, the system will transfer more power to the front wheels. Driving in this mode results in slightly lower fuel economy than Two-Wheel Drive High. 4 m (Four-Wheel Drive High): Use the four-wheel high position when you need extra traction, such as on snowy or icy roads or in most off-road situations. This setting also engages your front axle to help drive the vehicle. This is the best setting to use when plowing snow. 4 n (Four-Wheel Drive Low): This setting also engages the front axle and delivers extra torque. You may never need this setting. It sends maximum power to all four wheels. You might choose Four-Wheel Drive Low if you are driving off-road in deep sand, deep mud, deep snow, and while climbing or descending steep hills. The vehicle has StabiliTrak®. Shifting into Four-Wheel-Drive Low will turn Traction Control and StabiliTrak® off. See StabiliTrak® System on page 4-6. { CAUTION: Shifting the transfer case to N (Neutral) can cause the vehicle to roll even if the transmission is in P (Park). You or someone else could be seriously injured. Be sure to set the parking brake before placing the transfer case in N (Neutral). See Parking Brake on page 2-48. N (Neutral): Shift the vehicle’s transfer case to N (Neutral) only when towing the vehicle. See Recreational Vehicle Towing on page 4-40 or Towing Your Vehicle on page 4-40 for more information. If the SERVICE 4 WHEEL DRIVE message stays on, you should take the vehicle to your dealer/retailer for service. See “SERVICE 4 WHEEL DRIVE message” under DIC Warnings and Messages on page 3-58. 2-44 Shifting Into Four-Wheel Drive High or AUTO (Automatic Four-Wheel Drive) Turn the knob to the Four-Wheel High or AUTO position. This can be done at any speed, except when shifting from Four-Wheel Drive Low. The indicator light will ﬂash while shifting. It will remain on when the shift is completed. Shifting Into Two-Wheel Drive High Turn the knob to the Two-Wheel High position. This can be done at any speed, except when shifting from Four-Wheel Drive Low. See shifting out of Four-Wheel Drive Low later in this section for more information. Shifting Into Four-Wheel Drive Low When Four-Wheel Low is engaged, vehicle speed should be kept below 45 mph (72 km/h). Extended high-speed operation in 4L may damage or shorten the life of the drivetrain. To shift to the Four-Wheel Drive Low position, the ignition must be in ON/RUN and the vehicle must be stopped or moving less than 3 mph (5 km/h) with the transmission in N (Neutral). The preferred method for shifting into Four-Wheel Drive Low is to have the vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Turn the knob to the Four-Wheel Drive Low position. You must wait for the Four-Wheel Drive Low indicator light to stop ﬂashing and remain on before shifting the transmission into gear. Notice: Shifting the transmission into gear before the Four-Wheel Drive Low indicator light has stopped ﬂashing could damage the transfer case. To help avoid damaging the vehicle, always wait for the Four-Wheel Drive Low indicator light to stop ﬂashing before shifting the transmission into gear. The vehicle may have signiﬁcant engagement noise and bump when shifting between Four-Wheel Drive Low and Four-Wheel Drive High ranges or from N (Neutral) while the engine is running. If the knob is turned to the Four-Wheel Drive Low position when the vehicle is in gear and/or moving, the Four-Wheel Drive Low indicator light will ﬂash for 30 seconds and not complete the shift unless the vehicle is moving less than 3 mph (5 km/h) and the transmission is in N (Neutral). After 30 seconds the transfer case will shift to Four-Wheel Drive High mode. 2-45 Shifting Out of Four-Wheel Drive Low To shift from Four-Wheel Drive Low to Four-Wheel Drive High, AUTO, or Two-Wheel Drive High, the vehicle must be stopped or moving less than 3 mph (5 km/h) with the transmission in N (Neutral) and the ignition in ON/RUN. The preferred method for shifting out of Four-Wheel Drive Low is to have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Turn the knob to the Four-Wheel Drive High, AUTO, or Two-Wheel Drive High position. You must wait for the Four-Wheel Drive High, AUTO, or Two-Wheel Drive High indicator light to stop ﬂashing and remain on before shifting the transmission into gear. Notice: Shifting the transmission into gear before the Four-Wheel Drive Low indicator light has stopped ﬂashing could damage the transfer case. To help avoid damaging the vehicle, always wait for the Four-Wheel Drive Low indicator light to stop ﬂashing before shifting the transmission into gear. The vehicle may have signiﬁcant engagement noise and bump when shifting between Four-Wheel Drive Low and Four-Wheel Drive High ranges or from N (Neutral) while the engine is running. If the knob is turned to the Four-Wheel Drive High, AUTO, or Two-Wheel Drive High switch position when the vehicle is in gear and/or moving, the Four-Wheel Drive High, AUTO or Two-Wheel Drive High indicator light will ﬂash for 30 seconds but will not complete the shift unless the vehicle is moving less than 3 mph (5 km/h) and the transmission is in N (Neutral). Shifting into Neutral To shift the transfer case to N (Neutral) do the following: 1. Make sure the vehicle is parked so that it will not roll. 2. Set the parking brake and apply the regular brake pedal. See Parking Brake on page 2-48 for more information. 3. Start the vehicle or turn the ignition to ON/RUN. 4. Put the transmission in N (Neutral). 5. Shift the transfer case to Two-Wheel Drive High. 6. Turn the transfer case dial clockwise to N (Neutral) until it stops and hold it there until the N (Neutral) light starts blinking. This will take at least 10 seconds. Then slowly release the dial to the Four-Wheel Drive Low position. The N (Neutral) light will come on when the transfer case shift to N (Neutral) is complete. 2-46 7. If the engine is running, verify that the transfer case is in N (Neutral) by shifting the transmission to R (Reverse) for one second, then shift the transmission to D (Drive) for one second. 8. Turn the ignition to ACC/ACCESSORY, which will turn the engine off. 9. Place the transmission shift lever in P (Park). 10. Release the parking brake prior to moving the vehicle. 11. Turn the ignition to LOCK/OFF. Shifting Out of Neutral To shift out of N Neutral do the following: 1. Set the parking brake and apply the regular brake pedal. 2. Turn the ignition to ON/RUN with the engine off, and shift the transmission to N (Neutral). 3. Turn the transfer case dial to the desired transfer case shift position (Two-Wheel Drive High, Four-Wheel Drive High, AUTO). After the transfer case has shifted out of N (Neutral), the N (Neutral) light will go out. 4. Release the parking brake prior to moving the vehicle. Notice: Shifting the transmission into gear before the Four-Wheel Drive Low indicator light has stopped ﬂashing could damage the transfer case. To help avoid damaging the vehicle, always wait for the Four-Wheel Drive Low indicator light to stop ﬂashing before shifting the transmission into gear. 5. Start the engine and shift the transmission to the desired position. Excessively shifting the transfer case into or out of the different modes may cause the transfer case to enter the shift protection mode. This will protect the transfer case from possible damage and will only allow the transfer case to respond to one shift per 10 seconds. The transfer case may stay in this mode for up to three minutes. 2-47 If the ignition is on, the brake system warning light will come on. See Brake System Warning Light on page 3-36. A chime sounds and the warning light ﬂashes when the parking brake is applied and the vehicle is moving at least 5 mph (8 km/h). To release the parking brake, hold the regular brake pedal down. Then pull the bottom edge of the lever with the parking brake symbol, located above the parking brake pedal. If the ignition is on when the parking brake is released, the brake system warning light goes off. Notice: Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the brake warning light is off before driving. If you are towing a trailer and are parking on any hill, see Towing a Trailer on page 4-47. Parking Brake For vehicles with a release handle, set the parking brake by holding the regular brake pedal down, then pushing down the parking brake pedal. 2-48 For vehicles without a release handle, set the parking brake by holding the regular brake pedal down, then pushing down the parking brake pedal. If the ignition is on, the brake system warning light will come on. See Brake System Warning Light on page 3-36. Notice: Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the brake warning light is off before driving. To release the parking brake, hold the regular brake pedal down, then push down momentarily on the parking brake pedal until you feel the pedal release. Slowly pull your foot up off the park brake pedal. If the parking brake is not released when you begin to drive, the brake system warning light will ﬂash and a chime will sound warning you that the parking brake is still on. If you are towing a trailer and are parking on a hill, see Towing a Trailer on page 4-47. 2-49 2. Move the shift lever into the P (Park) position by pulling the shift lever toward you and moving it up as far as it will go. 3. Be sure the transfer case is in a drive gear — not in N (Neutral). 4. Turn the ignition key to LOCK/OFF. 5. Remove the key and take it with you. If you can leave the vehicle with the ignition key in your hand, the vehicle is in P (Park). Shifting Into Park { CAUTION: It can be dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake ﬁrmly set. The vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, use the steps that follow. With four-wheel drive, if the transfer case is in Neutral, the vehicle will be free to roll, even if the shift lever is in P (Park). So, be sure the transfer case is in a drive gear — not in Neutral. If you are pulling a trailer, see Towing a Trailer on page 4-47. 1. Hold the brake pedal down, then set the parking brake. See Parking Brake on page 2-48 for more information. 2-50 Leaving the Vehicle With the Engine Running { CAUTION: It can be dangerous to leave the vehicle with the engine running. The vehicle could move suddenly if the shift lever is not fully in P (Park) with the parking brake ﬁrmly set. If you have four-wheel drive and the transfer case is in Neutral, the vehicle will be free to roll, even if the shift lever is in P (Park). So be sure the transfer case is in a drive gear — not in Neutral. And, if you leave the vehicle with the engine running, it could overheat and even catch ﬁre. You or others could be injured. Do not leave the vehicle with the engine running unless you have to. If you have to leave the vehicle with the engine running, be sure your vehicle is in P (Park) and the parking brake is ﬁrmly set before you leave it. After you move the shift lever into P (Park), hold the regular brake pedal down. Then, see if you can move the shift lever away from P (Park) without ﬁrst pulling it toward you. If you can, it means that the shift lever was not fully locked into P (Park). Torque Lock If you are parking on a hill and you do not shift your transmission into P (Park) properly, the weight of the vehicle may put too much force on the parking pawl in the transmission. You may ﬁnd it difficult to pull the shift lever out of P (Park). This is called torque lock. To prevent torque lock, set the parking brake and then shift into P (Park) properly before you leave the driver seat. To ﬁnd out how, see Shifting Into Park on page 2-50. When you are ready to drive, move the shift lever out of P (Park) before you release the parking brake. If torque lock does occur, you may need to have another vehicle push yours a little uphill to take some of the pressure from the parking pawl in the transmission, then you will be able to pull the shift lever out of P (Park). 2-51 Shifting Out of Park This vehicle is equipped with an electronic shift lock release system. The shift lock release is designed to: (cid:129) Prevent ignition key removal unless the shift lever is in P (Park) with the shift lever button fully released, and (cid:129) Prevent movement of the shift lever out of P (Park), unless the ignition is in ON/RUN or ACC/ACCESSORY and the regular brake pedal is applied. The shift lock release is always functional except in the case of an uncharged or low voltage (less than 9 volt) battery. If the vehicle has an uncharged battery or a battery with low voltage, try charging or jump starting the battery. See Jump Starting on page 5-40 for more information. To shift out of P (Park) use the following: 1. Apply the brake pedal. 2. Move the shift lever to the desired position. If you still are unable to shift out of P (Park): 1. Ease the pressure on the shift lever. 2. While holding down the brake pedal, press the shift lever all the way into P (Park). 3. Move the shift lever to the desired position. If you are still having a problem shifting, then have the vehicle serviced soon. Parking Over Things That Burn { CAUTION: Things that can burn could touch hot exhaust parts under the vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn. 2-52 Engine Exhaust { CAUTION: Engine exhaust contains Carbon Monoxide (CO) which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: (cid:129) The vehicle idles in areas with poor ventilation (parking garages, tunnels, deep snow that may block underbody airﬂow or tail pipes). (cid:129) The exhaust smells or sounds strange or (cid:129) The exhaust system leaks due to corrosion or different. damage. CAUTION: (Continued) CAUTION: (Continued) (cid:129) The vehicle’s exhaust system has been modiﬁed, damaged or improperly repaired. (cid:129) There are holes or openings in the vehicle body from damage or after-market modiﬁcations that are not completely sealed. If unusual fumes are detected or if it is suspected that exhaust is coming into the vehicle: (cid:129) Drive it only with the windows completely down. (cid:129) Have the vehicle repaired immediately. Never park the vehicle with the engine running in an enclosed area such as a garage or a building that has no fresh air ventilation. 2-53 Running the Vehicle While Parked It is better not to park with the engine running. But if you ever have to, here are some things to know. { CAUTION: Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine exhaust may enter the vehicle. Engine exhaust contains Carbon Monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death. Never run the engine in an enclosed area that has no fresh air ventilation. For more information, see Engine Exhaust on page 2-53. { CAUTION: It can be dangerous to get out of the vehicle if the automatic transmission shift lever is not fully in P (Park) with the parking brake ﬁrmly set. The CAUTION: (Continued) 2-54 CAUTION: (Continued) vehicle can roll. Do not leave the vehicle when the engine is running unless you have to. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, always set the parking brake and move the shift lever to P (Park). { CAUTION: Four-wheel drive vehicles with the transfer case in N (Neutral) will allow the vehicle to roll, even if the automatic transmission shift lever is in P (Park). So, be sure the transfer case is in a drive gear — not in N (Neutral). Always set the parking brake. Follow the proper steps to be sure the vehicle will not move. See Shifting Into Park on page 2-50. If pulling a trailer, see Towing a Trailer on page 4-47. Mirrors Manual Rearview Mirror Hold the inside rearview mirror in the center to move it for a clearer view behind your vehicle. Adjust the mirror to avoid glare from the headlamps behind you. Push the tab forward for daytime use and pull it for nighttime use. Automatic Dimming Rearview Mirror The vehicle may have an automatic dimming inside rearview mirror. Vehicles with OnStar® have three additional control buttons located at the bottom of the mirror. See your dealer/retailer for more information about OnStar® and how to subscribe to it. See OnStar® System on page 2-66 for more information about the services OnStar® provides. O (On/Off): Press to turn the dimming feature on or off. The vehicle may also have a Rear Vision Camera (RVC). See Rear Vision Camera (RVC) on page 2-61 for more information. If the vehicle has RVC, the O (On/Off) button for turning the automatic dimming feature on or off will not be available. Automatic Dimming Mirror Operation Automatic dimming reduces the glare from the headlamps of the vehicle behind you. The dimming feature comes on and the indicator light illuminates each time the ignition is turned to start. Cleaning the Mirror Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. 2-55 Outside Power Mirrors Outside Power Foldaway Mirrors Vehicles with outside power mirrors have controls located on the driver door armrest. Vehicles with outside power foldaway mirrors have controls located on the driver door armrest. To adjust each mirror: 1. Press (A) or (B) to select the driver or passenger side mirror. 2. Press one of the four arrows located on the control pad to adjust the mirror. 3. Adjust each outside mirror to see a little of the vehicle, and the area behind your vehicle. 4. Press either (A) or (B) again to deselect the mirror. Manually fold the mirrors inward to prevent damage when going through an automatic car wash. To fold, push the mirror toward the vehicle. Push the mirror outward, to return to its original position. 2-56 Mirror Adjustment 1. Press (C) to fold the mirrors out to the driving position. 2. Press (D) to fold the mirrors in to the folded position. Resetting the Power Foldaway Mirrors Reset the power foldaway mirrors if: The mirrors are accidentally obstructed while folding. They are accidentally manually folded/unfolded. The mirrors will not stay in the unfolded position. The mirrors vibrate at normal driving speeds. To reset the power foldaway mirrors, fold and unfold them one time using the mirror controls. This will reset them to their normal position. Automatic Dimming The driver outside mirror adjusts for the glare of the headlamps behind you. See Automatic Dimming Rearview Mirror on page 2-55 for more information. Turn Signal Indicator The vehicle may also have a turn signal indicator on the mirror. An arrow on the mirror ﬂashes in the direction of the turn or lane change. Park Tilt Mirrors If the vehicle has the memory package, the passenger and/or driver mirror tilts to a preselected position when the vehicle is in R (Reverse). This feature lets the driver view the curb when parallel parking. The mirror(s) return to the original position when the vehicle is shifted out of R (Reverse), or the ignition is turned off or to OFF/LOCK. Turn this feature on or off through the Driver Information Center (DIC). See DIC Vehicle Customization (With DIC Buttons) on page 3-67 for more information. Outside Convex Mirror { CAUTION: A convex mirror can make things (like other vehicles) look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on the right. Check the inside mirror or glance over your shoulder before changing lanes. The passenger side mirror is convex shaped. A convex mirror’s surface is curved so more can be seen from the driver seat. 2-57 (cid:129) (cid:129) (cid:129) (cid:129) { CAUTION: The Ultrasonic Rear Parking Assist (URPA) system does not replace driver vision. It cannot detect: (cid:129) objects that are below the bumper, underneath the vehicle, or if they are too close or far from the vehicle children, pedestrians, bicyclists, or pets. If you do not use proper care before and while backing; vehicle damage, injury, or death could occur. Even with URPA, always check behind the

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2009 Chevrolet Avalanche Owners Manual