2008 GMC Sierra Owners Manual

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Keys ...............................................................2-3 Remote Keyless Entry (RKE) System ................2-4 Remote Keyless Entry (RKE) System Operation .......................................2-5 Remote Vehicle Start ......................................2-8 Doors and Locks ............................................2-10 Door Locks ..................................................2-10 Power Door Locks ........................................2-11 Delayed Locking ...........................................2-11 Programmable Automatic Door Locks ..............2-11 Rear Door Security Locks ..............................2-12 Lockout Protection ........................................2-13 Rear Doors ..................................................2-13 Tailgate .......................................................2-13 Windows ........................................................2-15 Manual Windows ..........................................2-15 Power Windows ............................................2-16 Sliding Rear Window .....................................2-17 Power Sliding Rear Window ...........................2-17 Sun Visors ...................................................2-18 Theft-Deterrent Systems ..................................2-18 Content Theft-Deterrent .................................2-18 PASS-Key® III+ ............................................2-20 PASS-Key® III+ Operation ..............................2-20 Starting and Operating Your Vehicle ................2-22 New Vehicle Break-In ....................................2-22 Ignition Positions ..........................................2-22 Retained Accessory Power (RAP) ...................2-23 Starting the Engine .......................................2-24 Adjustable Throttle and Brake Pedal ................2-25 Engine Coolant Heater ..................................2-26 Automatic Transmission Operation ...................2-27 Tow/Haul Mode ............................................2-31 Parking Brake ..............................................2-32 Shifting Into PARK (P) ...................................2-33 Shifting Out of PARK (P) ...............................2-34 Parking Over Things That Burn .......................2-35 Engine Exhaust ............................................2-35 Running the Engine While Parked ...................2-36 Mirrors ...........................................................2-37 Automatic Dimming Rearview Mirror with OnStar®, Compass and Temperature Display ..................................2-37 Outside Power Mirrors ...................................2-39 Outside Power Foldaway Mirrors .....................2-41 Object Detection Systems ...............................2-43 Ultrasonic Rear Parking Assist (URPA) ............2-43 2-1 Section 2 Features and Controls OnStar® System .............................................2-45 Universal Home Remote System ......................2-49 Universal Home Remote System .....................2-49 Universal Home Remote System Operation (With Three Round LED) ............................2-49 Storage Areas ................................................2-56 Glove Box ...................................................2-56 Cupholder(s) ................................................2-56 Instrument Panel Storage ...............................2-56 Center Console Storage .................................2-57 Rear Seat Armrest ........................................2-57 Cargo Management System ...........................2-57 Sunroof .........................................................2-58 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 they 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 and all door locks. The key has a bar-coded key tag that the dealer/retailer or qualiﬁed locksmith can use to make new keys. Store this information in a safe place, not in your vehicle. 2-3 If you ever lock your keys in your vehicle, 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, call the Roadside Assistance Center. See Roadside Assistance Program on page 7-6. Remote Keyless Entry (RKE) System Your 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. At times you may notice a decrease in operating range. This is normal for any RKE system. If the transmitter does not work or if you have to stand closer to your vehicle for the transmitter to work, try this: (cid:129) Check the distance. You may be too far from your vehicle. You may need to 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 to determine if battery replacement is necessary. See “Battery Replacement” later in this section. If you are still having trouble, see your dealer/retailer or a qualiﬁed technician for service. 2-4 (cid:129) Remote Keyless Entry (RKE) System Operation The vehicle’s doors can be locked and unlocked from about 3 feet (1 m) up to 65 feet (20 m) away with the Remote Keyless Entry (RKE) transmitter. If your vehicle has the remote start feature you can also start your vehicle with the RKE transmitter. The RKE transmitter, with the remote start button, provides an increased operating range of 195 feet (60 m) away. However, the operating range may be less while the vehicle is running. As a result, you may need to be closer to your vehicle to turn it off than you were to start it. 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): If your vehicle has this feature, press / to start the engine from outside the vehicle using the RKE transmitter. See Remote Vehicle Start on page 2-8 for additional information. 2-5 Q (Lock): Press Q to lock all the doors. If enabled through the Driver Information Center (DIC), the turn signal lamps will ﬂash once to indicate locking has occurred. If enabled through the DIC, the horn will chirp 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 3-68 for additional information. Pressing Q will arm the content theft-deterrent system. See Content Theft-Deterrent on page 2-18. " (Unlock): Press " to unlock the driver’s door. If " is pressed again within three seconds, all remaining doors will unlock. If it is dark enough outside, your interior lamps will come on and stay on for 20 seconds or until the ignition is turned on. If enabled through the DIC, the turn signal lamps will ﬂash twice to indicate unlocking has occurred. See DIC Vehicle Customization (With DIC Buttons) on page 3-68. If enabled through the DIC, the exterior lights will turn on brieﬂy if it is dark enough outside. See “APPROACH LIGHTING” under DIC Vehicle Customization (With DIC Buttons) on page 3-68. Pressing " on the RKE transmitter will disarm the content theft-deterrent system. See Content Theft-Deterrent on page 2-18. 2-6 L (Vehicle Locator/Panic Alarm): Press and release L to locate your vehicle. The turn signal lamps will ﬂash and the horn will sound three times. Press and hold L for more than two seconds to activate the panic alarm. The turn signal lamps will ﬂash and the horn will sound repeatedly for 30 seconds. The alarm will turn 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. Matching Transmitter(s) to Your Vehicle Each RKE transmitter is coded to prevent another transmitter from unlocking your vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer/retailer. All transmitters need to be re-coded to match the new transmitter. The lost transmitter will no longer work after the new transmitters are re-coded. The vehicle can have a maximum of eight transmitters matched to it. See “Relearn Remote Key” under DIC Operation and Displays (Using DIC Buttons) on page 3-52 or DIC Operation and Displays (Using Trip Odometer Reset Stem) on page 3-58 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 3-59 for additional information. Notice: When replacing the battery, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may damage the transmitter. To replace the battery in the RKE transmitter: 1. Separate the halves of 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. Put the transmitter back together tightly. 2-7 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 1-4 for additional information. 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. 2-8 Do not use the remote start feature if your vehicle is low on fuel. Your vehicle may run out of fuel. The RKE transmitter with the remote start button, provides an increased range of operation. However, the range may be less while the vehicle is running. As a result, you may need to be closer to your vehicle to turn it off, than you were to turn it on. 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. 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 3-68 for additional information. If your vehicle does not have DIC buttons, see your dealer/retailer to enable or disable the remote vehicle start system.″ 2-9 (cid:129) (cid:129) 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. If your vehicle has the remote start ready feature, the RKE transmitter will have an extended range that allows locking or unlocking of the vehicle from approximately 197 feet (60 m) away. See your dealer/retailer if you would like to add the manufacturer’s remote vehicle start feature to your vehicle. 2-10 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. There are several ways to lock and unlock your vehicle. From the outside, use the Remote Keyless Entry (RKE) transmitter or the key in the driver’s door. From the inside, use the power door locks or manual door locks. To lock or unlock the door with the manual locks, push down or pull up on the manual lock knob. Power Door Locks The power door lock switches are located on the front doors. K(Unlock): Press to unlock the doors. Q(Lock): Remove the key from the ignition and press to lock the doors. 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 twice or the lock button on the RKE transmitter twice will override the delayed locking feature and immediately lock all the doors. This feature will not operate if the key is in the ignition. You can program this feature using the Driver Information Center (DIC). See DELAY DOOR LOCK under DIC Vehicle Customization (With DIC Buttons) on page 3-68. 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 3-68 for more information on DIC programming. 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. Security Lock Label shown 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 the key in the vehicle when the key is in the ignition and a front door is open. If the driver’s side power door lock switch is pressed when the driver’s door is open and the key is in the ignition, all of the doors will lock and then the driver’s door will unlock. If the passenger’s side power door lock switch is pressed when the front passenger’s door is open and the key is in the ignition, all of the doors will lock and then the front passenger’s door will unlock. Rear Doors You can open your doors from the inside or outside. Your vehicle may also have a feature which prevents children from opening the rear doors. See Rear Door Security Locks on page 2-12 for more information. 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. On vehicles with a lock on the tailgate, use the key to lock or unlock the tailgate. Open the tailgate by lifting up on its handle while pulling the tailgate toward you. To shut the tailgate, ﬁrmly push it upward until it latches. After you put the tailgate back up, pull it back towards you to be sure it latches securely. 2-13 2. With the tailgate about halfway open, lift the right edge of the tailgate from the lower pivot. On vehicles with the tailgate assist feature, raise the tailgate nearly all the way to the closed position prior to removing the left edge. 3. Move the tailgate to the right to release the left edge. Reverse this procedure to reinstall the tailgate. Make sure the tailgate is secure. Tailgate Removal The tailgate can be removed to allow for different loading situations. Although the tailgate can be removed without assistance, you may want someone to assist you with the removal to avoid possible damage to the vehicle. To remove the tailgate, do the following: 1. Raise the tailgate slightly and release both retaining cable clips. To release the retaining cable clips, lift the cable so it points straight out. Lift the clip over the bolt, and push the cable forward then rotate down. 2-14 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. Manual Windows Turn the hand crank on each door to manually raise or lower the manual windows. 2-15 Power Windows {CAUTION: Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome from extreme heat in warm or hot weather and suffer permanent injuries or even death from heat stroke. 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 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. 2-16 Crew Cab shown If your vehicle has power windows, the controls are located on each of the side doors in the front and rear for crew cab and extended cab models. The driver’s door has a switch for the passenger’s and rear windows as well. Your power windows will work when the ignition has been turned to ACCESSORY or RUN or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP) on page 2-23. Press the switch down to lower the window, and pull up the front of the switch to raise the window. Express Down Windows Vehicles with the express down feature allow the driver and front passenger 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 switch. To open the window partway, press the switch to the ﬁrst depression position, until the window is at the desired position. Window Lockout o(Window Lockout): If your crew cab or extended cab vehicle has power windows, the driver’s door power window switch has a lockout feature. The lockout switch is located in front of the window switches. This feature prevents the rear and passenger’s windows from operating, except from the driver’s position. Press the switch to engage or disengage the lockout feature. An indicator light on the switch will come on when the lockout feature is engaged, and will go off when disengaged. Sliding Rear Window If your vehicle has this feature, squeeze the latch in the center of the window and slide the glass to open. When you close the window, be sure the latch is engaged. The sliding rear window does not have rear defogger. Power Sliding Rear Window On vehicles with a power sliding rear window, the switch is located in the overhead console. The power sliding rear window works 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 2-23 for more information. The power sliding rear window cannot be operated manually. T: Press to open the window. S: Press to close the window. 2-17 Sun Visors Pull the sun visor down to block glare. Swing the sun visor to the side to cover the side window. The passenger’s side sun visor may have a vanity mirror. Theft-Deterrent Systems Vehicle theft is big business, especially in some cities. Although your vehicle has a number of theft-deterrent features, we know that nothing we put on it can make it impossible to steal. Content Theft-Deterrent Your vehicle may have 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. The security light should come on and ﬂash. If the delayed locking feature is active, the alarm will not be activated until all doors are closed and the security light goes off. 3. Close all doors. The security light will stop ﬂashing and go off after approximately 30 seconds. The content theft deterrent alarm is not armed until the security light goes off. 2-18 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 a door with the RKE transmitter. Unlocking a door any other way will set off the alarm if the system has been 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 it off. 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 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. 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 Fuses and Circuit Breakers on page 5-108. If the alarm does not sound or the headlamps do not ﬂash, see your dealer/retailer for service. 2-19 (cid:129) PASS-Key® III+ 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 your vehicle. PASS-Key® III+ 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. 2-20 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. 2-21 Starting and Operating Your Vehicle New Vehicle Break-In Notice: Your 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 4-41 for the trailer towing capabilities of your vehicle and more information. Following break-in, engine speed and load can be gradually increased. 2-22 Ignition Positions Use the key to turn the ignition switch to four different positions. In order to shift out of PARK (P), ignition must be in the ON/RUN or ACC/ACCESSORY and the regular brake pedal must be applied. A (LOCK/OFF): This position locks the ignition and transmission. It is a theft-deterrent feature. The key can only be removed when the ignition is turned to LOCK/OFF. Notice: Using a tool to force the key from the ignition switch could cause damage or break the key. Use the correct key and turn the key only with your hand. Make sure the key is all the way in. If it is, turn the steering wheel left and right while you turn the key hard. If none of this works, then your vehicle needs service. B (ACC/ACCESSORY): This position lets things like the radio and the windshield wipers operate while the engine is off. Lengthy operation of features such as the radio in the ACC/ACCESSORY ignition position and the ON/RUN position may drain the battery and prevent your vehicle from starting. Do not operate your vehicle in the ACC/ ACCESSORY ignition position for a long period of time. C (ON/RUN): This is the position for driving. It is the position the ignition switch returns to after the engine starts, and the key is released. The battery could be drained if you leave the key in the ACC/ACCESSORY or ON/RUN position with the engine off. You may not be able to start your vehicle if the battery is allowed to drain for an extended period of time. D (START): This position starts the engine. Key In the Ignition Never leave your vehicle with the keys inside, as it is an easy target for joy riders or thieves. If you leave the key in the ignition and park your vehicle, a chime will sound, when you open the driver’s door. Always remember to remove your key from the ignition and take it with you. This will lock your ignition and transmission. Also, always remember to lock the doors. The battery could be drained if you leave the key in the ignition while your vehicle is parked. You may not be able to start your vehicle after it has been parked for an extended period of time. 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’s door is opened. 2-23 Starting the Engine Move your shift lever to PARK (P) or NEUTRAL (N). Your engine will not start in any other position – this is a safety feature. To restart when you are already moving, use NEUTRAL (N) only. Notice: Do not try to shift to PARK (P) if your vehicle is moving. If you do, you could damage the transmission. Shift to PARK (P) only when your vehicle is stopped. Starting Procedure 1. With your foot off the accelerator pedal, turn the ignition key to START. When the engine starts, let go of the key. The idle speed will go down as your engine gets warm. 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. Your 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 for many seconds, 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. 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, do the same thing. 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. 2-24 Notice: The engine is designed to work with the electronics in your 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, your engine might not perform properly. Any resulting damage would not be covered by your vehicle’s warranty. Adjustable Throttle and Brake Pedal On vehicles with this feature, you can change the position of the throttle and brake pedals. This feature is designed for shorter drivers, since the pedals cannot move farther away from the standard position, but can move toward the driver for better pedal reach. No adjustment to the pedals can be made when the vehicle is in REVERSE (R) 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. Your vehicle may have a memory function which lets pedal settings be saved and recalled. See Memory Seat, Mirrors, and Pedals on page 1-4 for more information. 2-25 Engine Coolant Heater The engine coolant heater, if available, can help in cold weather conditions at or below 0°F (−18°C) for easier starting and better fuel economy during engine warm-up. Plug in the coolant heater at least four hours before starting your vehicle. 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. How long should you keep the coolant heater plugged in? The answer depends on the outside temperature, the kind of oil you have, and some other things. Instead of trying to list everything here, we ask that you contact your dealer/retailer in the area where you will be parking your vehicle. The dealer/retailer can give you the best advice for that particular area. 2-26 Automatic Transmission Operation Your 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 PARK (P). There are several different positions for the shift lever. See “Range Selection Mode” later in this section. PARK (P): This position locks your rear wheels. It is the best position to use when you start your engine because your 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 Park. See Torque Lock (Automatic Transmission) under Shifting Into PARK (P) on page 2-33 for more information. {CAUTION: It is dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake ﬁrmly set. Your vehicle can roll. Do not leave your 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 your vehicle will not move, even when you are on fairly level ground, always set your parking brake and move the shift lever to PARK (P). See Shifting Into PARK (P) on page 2-33. If you are pulling a trailer, see Towing a Trailer on page 4-41. REVERSE (R): Use this gear to back up. Notice: Shifting to REVERSE (R) while your vehicle is moving forward could damage the transmission. The repairs would not be covered by your warranty. Shift to REVERSE (R) only after your vehicle is stopped. 2-27 DRIVE (D): This position is for normal driving. It provides the best fuel economy for your vehicle. If you need more power for passing, and you are: (cid:129) Going less than about 35 mph (55 km/h), push your accelerator pedal about halfway down. (cid:129) Going about 35 mph (55 km/h) or more, push the accelerator all the way down. DRIVE (D) 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 4-10 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. To rock your vehicle back and forth to get out of snow, ice, or sand without damaging your transmission, see If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow on page 4-32. NEUTRAL (N): In this position, your engine does not connect with the wheels. To restart when you are already moving, use NEUTRAL (N) only. Also, use NEUTRAL (N) when your vehicle is being towed. {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, your vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while your engine is running at high speed. Notice: Shifting out of PARK (P) or NEUTRAL (N) with the engine running at high speed may damage the transmission. The repairs would not be covered by your warranty. Be sure the engine is not running at high speed when shifting your vehicle. 2-28 MANUAL MODE (M): 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 your warranty. If you are stuck, do not spin the tires. When stopping on a hill, use the brakes to hold the vehicle in place. Your 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. Your 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. 2-29 When in the MANUAL MODE (M) 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, your vehicle can automatically shift to lower gears as it adjusts to driving conditions. This means that all gears below that number are available. When FIFTH (5) is selected, FIRST (1) through FIFTH (5) gears are automatically shifted by the vehicle, but SIXTH (6) cannot be used until the plus/minus button located on the steering column lever is used to change to the gear. The 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 2-31 for more information. While using the Range Selection Mode, Cruise Control and the Tow/Haul mode can be used. Range Selection Mode On vehicles with a Range Selection Mode. The Range Selection Mode controls the vehicle’s transmission. To use this feature, do the following: 1. Move the shift lever to the MANUAL MODE (M). 2. Press the plus/minus button, to upshift or downshift selecting the desired range of gears for your current driving conditions. 2-30 Tow/Haul Mode Your 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 3-50 for more information. Also see “Tow Haul Mode” under Towing a Trailer on page 4-41 for more information. Grade Braking Grade Braking assists when driving on a downhill grade. It maintains the vehicle’s speed by automatically using a shift schedule that lets the engine and the transmission slow the vehicle. This reduces wear on the brakes system and increases control of the vehicle. The system constantly monitors the vehicle’s speed, acceleration, throttle position, and whether the brake pedal is being pressed, and determines when to keep the current vehicle speed or to slow down. The system then automatically, commands downshifts that reduce the vehicles speed, until the brake pedal is no longer being pressed. This indicates the desired vehicle speed has been reached. The tow/haul mode and grade braking shift modes can be activated by pressing the button on the end of the shift control stalk. While in the Range Selection Mode, grade braking is deactivated, and lets the driver select a gear. See Automatic Transmission Operation on page 2-27 for more information. 2-31 Parking Brake To set the parking brake, hold the regular brake pedal down with your right foot. Push down the parking brake pedal with your left foot. 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). 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 4-41. To release the parking brake, hold the regular brake pedal down. Then pull the bottom edge of the lever, with the parking brake symbol and located above the parking brake pedal. 2-32 Shifting Into PARK (P) {CAUTION: It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake ﬁrmly set. Your vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle will not move, even when you are on fairly level ground, use the steps that follow. If you are pulling a trailer, see Towing a Trailer on page 4-41. 1. Hold the brake pedal down with your right foot and set the parking brake. 2. Move the shift lever into the PARK (P) position by pulling the shift lever toward you and moving it up as far as it will go. 3. Turn the ignition key to LOCK/OFF. 4. Remove the key and take it with you. If you can leave your vehicle with the ignition key in your hand, your vehicle is in PARK (P). Leaving Your Vehicle With the Engine Running {CAUTION: It can be dangerous to leave your vehicle with the engine running. Your vehicle could move suddenly if the shift lever is not fully in PARK (P) with the parking brake ﬁrmly set. 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 your vehicle with the engine running. If you have to leave your vehicle with the engine running, be sure your vehicle is in PARK (P) and the parking brake is ﬁrmly set. After the shift lever is moved into PARK (P), hold the regular brake pedal down. Then, see if you can move the shift lever away from PARK (P) without ﬁrst pulling it toward you. If you can, it means that the shift lever was not fully locked into PARK (P). 2-33 The shift lock release is always functional except in the case of an uncharged or low voltage (less than 9 volt) battery. If your 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 PARK (P) use the following: 1. Apply the brake pedal. 2. Then press the shift lever button. 3. Move the shift lever to the desired position. If you still are unable to shift out of PARK (P): 1. Fully release the shift lever button. 2. While holding down the brake pedal, press the shift lever button again. 3. Move the shift lever to the desired position. If you still cannot move the shift lever from PARK (P), consult your dealer/retailer or a professional towing service. Torque Lock If you are parking on a hill and you do not shift your transmission into PARK (P) properly, the weight of the vehicle can put too much force on the parking pawl in the transmission. It might be difficult to pull the shift lever out of PARK (P). This is called torque lock. To prevent torque lock, set the parking brake and then shift into PARK (P) properly before you leave the driver’s seat. To ﬁnd out how, see Shifting Into PARK (P) on page 2-33. When you are ready to drive, move the shift lever out of PARK (P) before releasing the parking brake. If torque lock does occur, you might 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 should be able to pull the shift lever out of PARK (P). Shifting Out of PARK (P) 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 PARK (P) with the shift lever button fully released, and (cid:129) Prevent movement of the shift lever out of PARK (P), unless the ignition is in ON/RUN or ACC/ ACCESSORY and the regular brake pedal is applied. 2-34 Parking Over Things That Burn Engine Exhaust {CAUTION: {CAUTION: Things that can burn could touch hot exhaust parts under your vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn. Engine exhaust can kill. It contains the gas carbon monoxide (CO), which you cannot see or smell. It can cause unconsciousness and death. You might have exhaust coming in if: (cid:129) The exhaust system sounds strange or different. (cid:129) Your vehicle gets rusty underneath. (cid:129) Your vehicle was damaged in a collision. (cid:129) Your vehicle was damaged when driving over high points on the road or over road debris. (cid:129) Repairs were not done correctly. (cid:129) Your vehicle or the exhaust system has been modiﬁed improperly. If you ever suspect exhaust is coming into your vehicle: (cid:129) Drive it only with all the windows down to blow out any CO; and (cid:129) Have your vehicle ﬁxed immediately. 2-35 Running the Engine 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: {CAUTION: Idling the engine with the climate control system off could allow dangerous exhaust into your vehicle. See the earlier caution under Engine Exhaust on page 2-35. Also, idling in a closed-in place can let deadly carbon monoxide (CO) into your vehicle even if the climate control fan is at the highest setting. One place this can happen is a garage. Exhaust — with CO — can come in easily. NEVER park in a garage with the engine running. Another closed-in place can be a blizzard. See Winter Driving on page 4-28. It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake ﬁrmly set. Your vehicle can roll. Do not leave your 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 your vehicle will not move, even when you are on fairly level ground, always set the parking brake and move the shift lever to PARK (P). Follow the proper steps to be sure your vehicle will not move. See Shifting Into PARK (P) on page 2-33. If you are pulling a trailer, see Towing a Trailer on page 4-41. 2-36 Mirrors Automatic Dimming Rearview Mirror with OnStar®, Compass and Temperature Display Your vehicle may have this feature. When on, an automatic dimming inside rearview mirror automatically dims to the proper level to minimize glare from lights behind you after dark. The mirror also includes a dual display in the upper right corner of the mirror face. The compass reading and the outside temperature will both appear in the display at the same time. P(On/Off): This is the on/off button. Temperature and Compass Display Press the on/off button, located to the far left, brieﬂy to turn the compass/temperature display on or off. If the display reads CAL, you will need to calibrate the compass. For more information on calibration see “Compass Calibration” following. To adjust between Fahrenheit and Celsius: 1. Press and hold the on/off button for approximately four seconds until either a ﬂashing F or C appears. 2. Press the button again to change the display to the desired unit of measurement. After approximately four seconds of inactivity, the new unit will be locked in and the compass/temperature display will return. If an abnormal temperature reading is displayed for an extended period of time, please see your dealer. Under certain circumstances, a delay in updating the temperature is normal. Automatic Dimming Mirror Operation The automatic dimming mirror function is turned on automatically each time the ignition is started. To operate the automatic dimming mirror, do the following: 1. Make sure the green indicator light, located to the left of the on/off button, is lit. If it’s not, press and hold the on/off button for approximately six seconds until the green light comes on, indicating that the mirror is in automatic dimming mode. 2. Turn off the automatic dimming mirror function by pressing and holding the on/off button for approximately six seconds, until the green indicator light turns off. 2-37 Compass Variance The mirror is set in zone eight upon leaving the factory. It will be necessary to adjust the compass to compensate for compass variance if you live outside of zone eight. Under certain circumstances, as during a long distance cross-country trip, it will be necessary to adjust for compass variance. Compass variance is the difference between earth’s magnetic north and true geographic north. If not adjusted to account for compass variance, your compass could give false readings. To adjust for compass variance do the following: 1. Find your current location and variance zone number on the following zone map. 2-38 2. Press and hold the on/off button until a Z and a zone number appears in the display. The compass is now in zone mode. 3. Keep pressing the on/off button until the desired zone number appears in the display. Release the button. After approximately four seconds of inactivity, the new zone number will be locked in and the compass/temperature display will return. 4. Calibrate the compass as described below. Compass Calibration The compass may need calibration if one of the following occurs: (cid:129) After approximately ﬁve seconds, the display does not show a compass heading (N for North, for example), there may be a strong magnetic ﬁeld interfering with the compass. Such interference may be caused by a magnetic antenna mount, magnetic note pad holder or a similar magnetic item. The compass does not display the correct heading and the compass zone variance is set correctly. In order to calibrate, CAL must be displayed in the mirror compass windows. If CAL is not displayed, push the on/off button for approximately 12 seconds or until CAL is displayed. The compass can be calibrated by driving the vehicle in circles at 5 mph (8 km/h) or less until the display reads a direction. Cleaning the Mirror When cleaning the mirror, use a paper towel or similar material dampened with glass cleaner. Do not spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing. Outside Power Mirrors If your vehicle is equipped with outside power mirrors, the controls are located on the driver’s door armrest. (cid:129) Press (A) to select the driver’s side mirror. Then press the arrows located on the four-way control pad to adjust the mirror. Press (A) again to deselect the mirror. (cid:129) Press (B) to select the passenger’s side mirror. Then press the arrows located on the four-way control pad to adjust the mirror. Press (B) again to deselect the mirror. This mirror has the following features. 2-39 (cid:129) Manual Folding The mirrors can be manually folded inward to prevent damage when going through an automatic car wash. To fold, push the mirror toward the vehicle. To return the mirror to its original position, push outward. Be sure to return both mirrors to their original unfolded position before driving. Heated Mirrors The button to turn the heated mirrors on or off is located on the climate control panel. Press this button to warm the driver’s and passenger’s outside rearview mirrors to help clear them of ice, snow, and condensation. See “Rear Window Defogger” under Dual Automatic Climate Control System on page 3-26 for more information. Convex Mirror The passenger’s side mirror may have convex glass. A convex mirror’s surface is curved so more can be seen from the driver’s seat. {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 your right. Check your inside mirror or glance over your shoulder before changing lanes. 2-40 Outside Power Foldaway Mirrors If your vehicle is equipped with outside power foldaway mirrors, the controls are located on the driver’s door armrest. (cid:129) Press (A) to select the driver’s side mirror. Then press the arrows located on the four-way control pad to adjust the mirror. Press (A) again to deselect the mirror. (cid:129) Press (B) to select the passenger’s side mirror. Then press the arrows located on the four-way control pad to adjust the mirror. Press (B) again to deselect the mirror. (cid:129) Press (C) to fold the mirrors out to the driving (cid:129) Press (D) to fold the mirrors in to the folded position. position. If the mirrors are accidentally folded/unfolded manually, they may shake or ﬂutter at normal driving speeds and may not stay in the unfolded position. If this happens, you will need to reset the mirrors. See “Resetting the Power Foldaway Mirrors” next. Resetting the Power Foldaway Mirrors You will need to reset the power foldaway mirrors if the following occurs: The mirrors are accidentally obstructed while folding. They are accidentally manually folded/unfolded. The mirrors will not stay in the unfolded position. The mirrors shake and ﬂutter 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. This mirror has the following features. Automatic Dimming The driver’s outside mirror will adjust for the glare of the headlamps behind you. See Automatic Dimming Rearview Mirror with OnStar®, Compass and Temperature Display on page 2-37. 2-41 (cid:129) (cid:129) (cid:129) (cid:129) 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 your right. Check your inside mirror or glance over your shoulder before changing lanes. The passenger’s side mirror may have convex glass. A convex mirror’s surface is curved so more can be seen from the driver’s seat. Your vehicle may also have a turn signal indicator on the mirror. An arrow on the mirror will ﬂash in the direction of the turn or lane change. Park Tilt Mirrors If your vehicle has the memory package, the outside mirrors are able to perform the park tilt function. This feature may be useful in allowing the driver to view the curb when parallel parking. This feature will cause the passenger’s and/or driver’s mirror to tilt to a preselected position when the vehicle is in REVERSE (R). The passenger’s and/or driver’s mirror will return to its original position when the vehicle is shifted out of REVERSE (R), or the ignition is turned off or to OFF/LOCK. This feature can be turned on or off through the Driver Information Center (DIC). See DIC Vehicle Customization (With DIC Buttons) on page 3-68. Heated Mirrors The button to turn the heated mirrors on or off is located on the climate control panel. Press this button to warm the driver’s and passenger’s outside rearview mirrors to help clear them of ice, snow, and condensation. See “Rear Window Defogger” under Dual Automatic Climate Control System on page 3-26 for more information. 2-42 Object Detection Systems Ultrasonic Rear Parking Assist (URPA) If your vehicle has the Ultrasonic Rear Parking Assist (URPA) system, it helps you park easier and avoid other vehicles while in REVERSE (R). It operates at speeds less than 5 mph (8 km/h). It can determine how close objects are to the rear bumper, up to 8 feet (2.5 m) behind your vehicle. The distance sensors are located on the rear bumper. {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 (cid:129) children, pedestrians, bicyclists, or pets. CAUTION: (Continued) CAUTION: (Continued) If you do not use proper care before and while backing; vehicle damage, injury, or death could occur. Even with URPA, always check behind your vehicle before backing up. While backing, be sure to look for objects and check your vehicle’s mirrors. On some vehicles this display is located near the passenger side rear window and can be seen by looking over your right shoulder. If your vehicle has the display, there are three color-coded lights to provide distance and system information. If your vehicle does not have the display and it has URPA, you will hear the beeps as described in the following information. 2-43 How the System Works URPA comes on automatically when the shift lever is moved into REVERSE (R). The rear display will then brieﬂy illuminate to let you know the system is working. URPA operates only at speeds less than 5 mph (8 km/h). If you are above this speed, the red light on the rear display will ﬂash. To be detected, objects must be at least 10 inches (25.4 cm) off the ground and below tailgate level. Objects must also be within 8 feet (2.5 m) from your rear bumper. This distance may be less during warmer or humid weather. A single beep will sound the ﬁrst time an object is detected between 20 inches (0.5 m) and 8 feet (2.5 m) away. Beeping will occur for three seconds when you are closer than 1 foot (0.3 m) from the object. The following describes what will occur with the URPA display as you get closer to a detected object: Description amber light amber/amber lights amber/amber/red lights amber/amber/red lights ﬂashing and beep for three seconds English 8 ft 40 in 23 in 1 ft Metric 2.5 m 1.0 m 0.6 m 0.3 m The system can be disabled by pressing the rear park aid disable button located next to the radio. The indicator light will come on to indicate that URPA is off. If you use URPA while the tailgate is Notice: lowered, it may not detect an object behind your vehicle, and you might back into the object and damage your vehicle. Always verify the tailgate is closed when using URPA or turn off URPA when driving with the tailgate lowered. 2-44 When the System Does Not Seem to Work Properly The driver disables the system. The parking brake pedal is depressed. The ultrasonic sensors are not clean. Keep your vehicle’s rear bumper free of mud, dirt, snow, ice and slush. For cleaning instructions, see Washing Your Vehicle on page 5-102. (cid:129) A trailer was attached to your vehicle, or a bicycle or an object was hanging out of your tailgate during your last drive cycle, the red light may illuminate in the rear display. Once the attached object is removed, URPA will return to normal operation. (cid:129) A tow bar is attached to your vehicle. The vehicle’s bumper is damaged. Take the vehicle to your dealer/retailer to repair the system. (cid:129) Other conditions may affect system performance, such as vibrations from a jackhammer or the compression of air brakes on a very large truck. If the system is still disabled, after driving forward at least 15 mph (25 km/h), take your vehicle to your dealer/retailer. OnStar® System OnStar uses several innovative technologies and live advisors to provide you with a wide range of safety, security, information, and convenience services. If your airbags deploy, the system is designed to make an automatic call to OnStar Emergency advisors who can request emergency services be sent to your location. If you lock your keys in the vehicle, call OnStar at 1-888-4-ONSTAR and they can send a signal to unlock your doors. If you need roadside assistance, press the OnStar button and they can contact Roadside Service for you. 2-45 (cid:129) (cid:129) (cid:129) (cid:129) OnStar service is provided to you subject to the OnStar Terms and Conditions. You may cancel your OnStar service at any time by contacting OnStar. A complete OnStar Owner’s Guide and the OnStar Terms and Conditions are included in the vehicle’s OnStar Subscriber glove box literature. For more information, visit onstar.com or onstar.ca, contact OnStar at 1-888-4-ONSTAR (1-888-466-7827) or TTY 1-877-248-2080, or press the OnStar button to speak with an OnStar advisor 24 hours a day, 7 days a week. Not all OnStar features are available on all vehicles. To check if your vehicle is equipped to provide the services described below, or for a full description of OnStar services and system limitations, see the OnStar Owner’s Guide in your glove box or visit onstar.com. OnStar Services For new vehicles with OnStar, the Safe & Sound Plan, or the Directions & Connections Plan is included for one year from the date of purchase. You can extend this plan beyond the ﬁrst year, or upgrade to the Directions & Connections Plan. For more information, press the OnStar button to speak with an advisor. Some OnStar services (such as Remote Door Unlock or Stolen Vehicle Location Assistance) may not be available until you register with OnStar. 2-46 Available Services with Safe & Sound Plan (cid:129) Automatic Notiﬁcation of Airbag Deployment (cid:129) Advanced Automatic Crash Notiﬁcation (AACN) (If equipped) Link to Emergency Services (cid:129) Roadside Assistance (cid:129) Stolen Vehicle Location Assistance (cid:129) AccidentAssist (cid:129) Remote Door Unlock/Vehicle Alert (cid:129) OnStar Vehicle Diagnostics (cid:129) GM Goodwrench® On Demand Diagnostics (cid:129) OnStar Hands-Free Calling with 30 complimentary minutes (cid:129) OnStar Virtual Advisor (U.S. Only) Available Services included with Directions & Connections Plan (cid:129) All Safe and Sound Plan Services (cid:129) Driving Directions - Advisor delivered or OnStar Turn-by-Turn Navigation (If equipped) (cid:129) RideAssist Information and Convenience Services (cid:129) (cid:129) OnStar Steering Wheel Controls Your vehicle may have a Talk/Mute button that can be used to interact with OnStar Hands-Free Calling. See Audio Steering Wheel Controls on page 3-120 for more information. On some vehicles, you may have to hold the button for a few seconds and give the command “ONSTAR” to activate the OnStar Hands-Free Calling. On some vehicles, the mute button can be used to dial numbers into voicemail systems, or to dial phone extensions. See the OnStar Owner’s Guide for more information. OnStar Hands-Free Calling OnStar Hands-Free Calling allows eligible OnStar subscribers to make and receive calls using voice commands. Hands-Free Calling is fully integrated into the vehicle, and can be used with OnStar Pre-Paid Minute Packages. Hands-Free Calling may also be linked to a Verizon Wireless service plan in the U.S. or a Bell Mobility service plan in Canada, depending on eligibility. To ﬁnd out more, refer to the OnStar Owner’s Guide in the vehicle’s glove box, visit www.onstar.com or www.onstar.ca, or speak with an OnStar advisor by pressing the OnStar button or calling 1-888-4-ONSTAR (1-888-466-7827). OnStar Virtual Advisor OnStar Virtual Advisor is a feature of OnStar Hands-Free Calling that uses your minutes to access location-based weather, local traffic reports, and stock quotes. By pressing the phone button and giving a few simple voice commands, you can browse through the various topics. See the OnStar Owner’s Guide for more information (Only available in the continental U.S.). 2-47 How OnStar Service Works Your vehicle’s OnStar system has the capability of recording and transmitting vehicle information. This information is automatically sent to an OnStar Call Center at the time of an OnStar button press, Emergency button press or if your airbags or AACN system deploys. The vehicle information usually includes your GPS location and, in the event of a crash, additional information regarding the accident that your vehicle has been involved in (e.g. the direction from which your vehicle was hit). When you use the Virtual Advisor feature of OnStar Hands-Free Calling, your vehicle also sends OnStar your GPS location so that we can provide you with location-based services. OnStar service cannot work unless your vehicle is in a place where OnStar has an agreement with a wireless service provider for service in that area. OnStar service also cannot work unless you are in a place where the wireless service provider OnStar has hired for that area has coverage, network capacity and reception when the service is needed, and technology that is compatible with the OnStar service. Not all services are available everywhere, particularly in remote or enclosed areas, or at all times. Location information about your vehicle is only available if the GPS satellite signals are unobstructed and available. Your vehicle must have a working electrical system (including adequate battery power) for the OnStar equipment to operate. There are other problems OnStar cannot control that may prevent OnStar from providing OnStar service to you at any particular time or place. Some examples are damage to important parts of your vehicle in an accident, hills, tall buildings, tunnels, weather or wireless phone network congestion. Your Responsibility Increase the radio volume if you cannot hear the OnStar advisor. If the light next to the OnStar buttons is red, this means that your system is not functioning properly and should be checked by your dealer/retailer. If the light appears clear (no light is appearing), your OnStar subscription has expired. You can always press the OnStar button to conﬁrm that your OnStar equipment is active. 2-48 Universal Home Remote System Universal Home Remote System Operation (With Three Round LED) Universal Home Remote System The Universal Home Remote System provides a way to replace up to three hand-held Radio-Frequency (RF) transmitters used to activate devices such as garage door openers, security systems, and home lighting. 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. Your vehicle may have the Universal Home Remote System. If there are three round Light Emitting Diode (LED) indicator lights above the Universal Home Remote buttons, follow the instructions below. This system provides a way to replace up to three remote control transmitters used to activate devices such as garage door openers, security systems, and home automation devices. Do not use this system with any garage door opener that does not have the stop and reverse feature. This includes any garage door opener model manufactured before April 1, 1982. Read the instructions completely before attempting to program the transmitter. Because of the steps involved, it may be helpful to have another person available to assist you in programming the transmitter. 2-49 Be sure to keep the original remote control transmitter for use in other vehicles, as well as, for future programming. You only need the original remote control transmitter for Fixed Code programming. It is also recommended that upon the sale or lease termination of the vehicle, the programmed buttons should be erased for security purposes. See “Erasing Universal Home Remote Buttons” later in this section. When programming a garage door, it is advised to park outside of the garage. Be sure that people and objects are clear of the garage door or security device you are programming. Programming Universal Home Remote — Rolling Code If you have questions or need help programming the Universal Home Remote System, call 1-866-572-2728 or go to www.learcar2u.com. Most garage door openers sold after 1996 are Rolling Code units. Programming a garage door opener involves time-sensitive actions, so read the entire procedure before you begin. If you do not follow these actions, the device will time out and you will have to repeat the procedure. To program up to three devices: 1. From inside the vehicle, press the two outside buttons at the same time for one to two seconds, and immediately release them. 2-50 3. Immediately return to your vehicle. Press and hold the Universal Home Remote button that you would like to use to control the garage door until the garage door moves. The indicator light, above the selected button, should slowly blink. You may need to hold the button from ﬁve to 20 seconds. 4. Immediately, within one second, release the button when the garage door moves. The indicator light will blink rapidly until programming is complete. 5. Press and release the same button again. The garage door should move, conﬁrming that programming is successful and complete. 2. Locate in the garage, the garage door opener receiver (motor-head unit). Locate the “Learn” or “Smart” button. It can usually be found where the hanging antenna wire is attached to the motor-head unit and may be a colored button. Press this button. After you press this button, you will have 30 seconds to complete the following steps. To program another Rolling Code device such as an additional garage door opener, a security device, or home automation device, repeat Steps 1 through 5, choosing a different function button in Step 3 than what you used for the garage door opener. If these instructions do not work, you probably have a Fixed Code garage door opener. Follow the Programming instructions that follow for a Fixed Code garage door opener. 2-51 To program up to three devices: Programming Universal Home Remote — Fixed Code If you have questions or need help programming the Universal Home Remote System, call 1-866-572-2728 or go to www.learcar2u.com. Most garage door openers sold before 1996 are Fixed Code units. Programming a garage door opener involves time-sensitive actions, so read the entire procedure before you begin. If you do not follow these actions, the device will time out and you will have to repeat the procedure. 1. To verify if you have a Fixed Code garage door opener, remove the battery cover on your hand held transmitter supplied by the manufacturer of your garage door opener motor. If you see a row of dip switches similar to the graphic above, you have a Fixed Code garage door opener. If you do not see a row of dip switches, return to the previous section for Programming Universal Home Remote – Rolling Code. Your hand held transmitter may have between eight to 12 dip switches depending on the brand of transmitter. 2-52 Your garage door opener receiver (motor head unit) may also have a row of dip switches that can be used when programming the Universal Home Remote. If the total number of switches on the motor head and hand held transmitter are different, or if the dip switch settings are different, use the dip switch settings on the motor head unit to program your Universal Home Remote. The motor head dip switch settings can also be used when you do not have the original hand held transmitter. Example of Eight Dip Switches with Two Positions Example of Eight Dip Switches with Three Positions Your panel of switches may not appear exactly as they do in the examples, but they should be similar. The switch positions on your hand-held transmitter may be labeled as follows: (cid:129) A switch in the up position may be labeled as “Up,” “+,” or “On.” (cid:129) A switch in the down position may be labeled as “Down,” “−,” or “Off.” (cid:129) A switch in the middle position may be labeled as “Middle,” “0,” or “Neutral.” 2-53 2. Write down the eight to 12 switch settings from left to right as follows: (cid:129) When a switch is in the up position, write “Left.” (cid:129) When a switch is in the down position, write “Right.” If a switch is set between the up and down position, write “Middle.” The switch settings that you wrote down in Step 2 will now become the button strokes you enter into the Universal Home Remote in Step 4. Be sure to enter the switch settings that you wrote down in Step 2, in order from left to right, into the Universal Home Remote, when completing Step 4. 3. From inside your vehicle, ﬁrst ﬁrmly press all three buttons at the same time for about three seconds. Release the buttons to put the Universal Home Remote into programming mode. 4. The indicator lights will blink slowly. Enter each switch setting from Step 2 into your vehicle’s Universal Home Remote. You will have two and one-half minutes to complete Step 4. Now press one button on the Universal Home Remote for each switch setting as follows: If you wrote “Left,” press the left button in the vehicle. If you wrote “Right,” press the right button in the vehicle. If you wrote “Middle,” press the middle button in the vehicle. 2-54 (cid:129) (cid:129) (cid:129) (cid:129) 5. After entering all of the switch positions, again, ﬁrmly press and release all three buttons at the same time. The indicator lights will turn on. 6. Press and hold the button you would like to use to control the garage door until the garage door moves. The indicator light above the selected button should slowly blink. You may need to hold the button from ﬁve to 55 seconds. 7. Immediately release the button when the garage door moves. The indicator light will blink rapidly until programming is complete. 8. Press and release the same button again. The garage door should move, conﬁrming that programming is successful and complete. To program another Fixed Code device such as an additional garage door opener, a security device, or home automation device, repeat Steps 1-8, choosing a different button in Step 6 than what you used for the garage door opener. Using Universal Home Remote Press and hold the appropriate button for at least half of a second. The indicator light will come on while the signal is being transmitted. Reprogramming Universal Home Remote Buttons You can reprogram any of the three buttons by repeating the instructions. Erasing Universal Home Remote Buttons You should erase the programmed buttons when you sell or terminate your lease. To erase either Rolling Code or Fixed Code on the Universal Home Remote device: 1. Press and hold the two outside buttons at the same time for approximately 20 seconds, until the indicator lights, located directly above the buttons, begin to blink rapidly. 2. Once the indicator lights begin to blink, release both buttons. The codes from all buttons will be erased. For help or information on the Universal Home Remote System, call the customer assistance phone number under Customer Assistance Offices on page 7-5. 2-55 Storage Areas Glove Box To open the glove box, lift up on the lever. Cupholder(s) Your vehicle may have cupholders located on and behind the center console and in the rear seat armrest. Pull the loop down on the rear seat armrest to access the cupholders. Instrument Panel Storage Your vehicle may have an instrument panel storage area. It is located above the glove box. To open, press and hold the driver’s side of the handle in and pull out on the exposed portion of the handle. Pull downward on the lid to use the cupholders behind the center console. 2-56 Center Console Storage Your vehicle may have an upper and lower center console storage area with cupholders. Cargo Management System Your vehicle may have a cargo management system. It is located in the bed of the truck. The system contains three rails located on the front and sides of the bed. The system will include four adjustable cargo tie-downs. The tie-downs can be placed on the upper and lower slides of the rail. To access the upper storage area, pull lever (A) up. To access the lower storage area, raise the upper storage bin, then pull lever (B) up. Use the key to lock and unlock the lower storage area. Rear Seat Armrest Your vehicle may have a rear seat armrest that contains two cupholders. To access the cupholders, pull the armrest down from the rear seatback. To adjust a tie-down, pull the locator pin out and move the tie-down to another location making sure the locator pin lines up with a locator hole on the rail. The tie-down pin may not be installed correctly if the pin does not line up, turn it over and reinstall. The tie-down will not move when the pin is installed completely. The maximum load for each rail is 500 lbs (227 kg). 2-57 The rails are notched at each end which allows the tie-downs to be removed and placed on another rail. To remove, pull the locator pin out and slide the tie-down to the end of the rail and pull back. To remove or install cargo tie-downs at the front of the bed, slide the corner cap towards the center of the bed to expose the rail notches. To remove the corner cap, pull either edge away from the rail. To remove the system, loosen the toggle bolts on each rail until they can be removed from the bed of the truck. To replace the system, place the toggle bolts and rails into their original locations and tighten them to a

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2008 GMC Sierra Owners Manual