Download PDF Manual

Rear Seats . . . . . . . . . . . . . . . . . . . . 3-1


Airbag System


Replacing Airbag System Parts


After a Crash . . . . . . . . . . . . . . . . 3-1


Seats and Restraints


3-1


Rear Seats


Airbag System


Folding Rear Seat Notice: Folding a rear seat with the safety belts still fastened may cause damage to the seat or the safety belts. Always unbuckle the safety belts and return them to their normal stowed position before folding a rear seat. Make sure that nothing is on the seat. To fold the seat, slowly pull the seat cushion up. To return the seat to the normal seating position, slowly pull the seat cushion down. Make sure the safety belts are not twisted or caught in the seat cushion.


Replacing Airbag System Parts After a Crash If an airbag inflates or the vehicle has been in a crash, the vehicle's sensing system may command the automatic hybrid battery disconnect to open. When the battery disconnect is open, the hybrid battery will be off and the vehicle will not start. The airbag readiness light and/or SERVICE HYBRID SYSTEM warning message may come on in the Driver Information Center (DIC). See “Airbag Readiness Light” in the owner manual and Driver Information Center (DIC) on page 5‑11 for more information. To operate the vehicle, the automatic hybrid battery disconnect must be reconnected by a qualified service technician and sensing system parts will need to be replaced. Have the vehicle serviced right away.


Silverado/Sierra Hybrid - 2011


Black plate (2,1)


3-2


Seats and Restraints


2 NOTES


Silverado/Sierra Hybrid - 2011


Black plate (1,1)


Storage


4-1


Storage


Additional Storage Features


Tonneau Cover (Hard


Tonneau) . . . . . . . . . . . . . . . . . . . . 4-1


Tonneau Cover (Soft


Tonneau) . . . . . . . . . . . . . . . . . . . . 4-6


Additional Storage Features


Tonneau Cover (Hard Tonneau)


Installing the Cover


{ CAUTION


An improperly stored cargo cover could be thrown about the vehicle during a collision or sudden maneuver. Someone could be injured. If the cover is removed, always store it in the proper storage location. After positioning the cargo cover back on the vehicle, always be sure that it is securely reattached by properly securing the straps and latches.


1. Position the tonneau cover onto


the top of the pickup box with the locator tabs positioned into the front stake pockets. If equipped, remove the front stake pocket covers from the bed rail protectors. The locators must fully seat into the stake pocket.


2. Align the front edge of the cover with the front edge of the bed rail so that it is centered on each side of the truck bed.


3. Lower the front clamp from its


storage position.


Silverado/Sierra Hybrid - 2011


Black plate (2,1)


4-2


Storage


4. Tilt the clamp assembly so that


5. Pull the handle toward the rear


the locator is in the slot, pull down on the assembly, and slide the clamp under the edge of the inner lip of the bed rail.


of the truck to engage the clamp. Make sure the locator is secure into the slot (A). If unable to completely engage clamp, see the tightening and loosening procedures later in this section.


6. The clamp should be securely


engaged. Shake the handle assembly to make sure the handle does not move.


7. There are locking features on the front clamps only. With the handle in the clamped position, push the locking tab to engage the lock.


8. Repeat the clamp attachment


steps 3 through 7 for the opposite side.


Silverado/Sierra Hybrid - 2011


Black plate (3,1)


Closing the Cover


Storage


4-3


4. Tilt the clamp assembly so that


5. Pull the handle toward the rear


the locator is in the slot, pull down on the assembly, and slide the clamp under the edge of the inner lip on the bed rail.


1. Release both the retention


straps located on the top of the cover behind the cab and press into the stored position.


2. Unfold the tonneau cover to the


closed position.


3. Lower the rear set of clamp assemblies from the stored position.


of the truck to engage the clamp. Make sure the locator is secured into the slot (A). If unable to completely engage clamp, see the tightening and loosening procedures later in this section.


6. The clamp should be securely


engaged. Shake the handle assembly to make sure the handle does not move.


7. Repeat the clamp attachment


steps 3 through 6 for the opposite side.


8. Close the endgate.


Silverado/Sierra Hybrid - 2011


Black plate (4,1)


4-4


Storage


Opening the Tonneau Cover 1. Turn both of the rear handles


inward to release compression.


2. Pull the clamp down and turn the


assemblies to disengage them from the lip of the pickup box. 3. Open the cover to expose the


handles.


5. Turn the handle assembly and


clamp assembly bolt sideways (A) into the slot of the retention feature (B).


6. The handle should lie flat on the


panel with the handles facing inward. Press firmly to secure. This step must be done before stowing the cover.


7. Fold the cover forward.


4. Align the clamp assembly bolt (A) with the retention feature (B).


8. Remove the retaining strap from


the bow. Connect the retention buckle ends. One end is located on the front of the tonneau cover behind the cab and the other end is on the tonneau cover


9. Pull on each strap to make sure


both buckles are attached.


Silverado/Sierra Hybrid - 2011


Black plate (5,1)


Storage


4-5


Removing the Tonneau Cover 1. Open the cover by following the procedure described previously, under “Opening the Tonneau Cover”.


4. Pull the clamp down and turn the


assembly to disengage it from the lip of the truck box.


5. Turn the cover to expose the


handles.


8. The handle should lie flat on the


panel with the handles facing inward. Press firmly to secure.


9. Remove the tonneau cover from


the vehicle.


2. Disengage the locking tabs,


located on the front handles, by pulling them rearward.


3. Turn the handles inward to


release.


6. Align the clamp assembly bolt (A), with the retention feature (B).


7. Turn the handle assembly


sideways by tilting the assembly bolt (A) into the slot of the retention feature (B).


Silverado/Sierra Hybrid - 2011


Black plate (6,1)


Tonneau Cover (Soft Tonneau)


Side Rail


{ WARNING


An improperly stored cargo cover could be thrown about the vehicle during a collision or sudden maneuver. Someone could be injured. If the cover is removed, always store it in the proper storage location. After positioning the cargo cover back on the vehicle, always be sure that it is securely reattached by properly securing the straps and latches.


Installation


1. The adjuster screw end of each


side rail should point in the direction of the cab.


2. Place each side rail on top of the


truck box.


4-6


Storage


Tightening the Clamp 1. Push the handle forward to release it from the clamped position.


2. Disengage the clamp from the inner edge of the bed rail and slide the assembly inward.


3. Adjust the clamp height on the bolt by turning the entire clamp assembly counter-clockwise.


4. Attach the clamps as indicated


in steps 4 and 5 of Installing the Cover.


Loosening the Clamp 1. Return the handle to the fully


disengaged position.


2. Disengage the clamp from the inner edge of the bed rail and slide the assembly inward. 3. Adjust the clamp height by


turning the entire clamp assembly clockwise.


4. Reattach the clamps as


indicated in steps 4 and 5 of Installing the Cover.


Silverado/Sierra Hybrid - 2011


Black plate (7,1)


Clamp


Installation


Storage


4-7


3. Align the front edge of the side rail with the front inside edge of pickup box.


2. Position the grooves of the clamps on the side rails (A) using the center groove (B).


1. Position three outer clamps (A), on each side rail. The positions on the siderails are marked CLAMP.


Silverado/Sierra Hybrid - 2011


Black plate (8,1)


4-8


Storage


3.


If the pickup box has molded bed rail protectors (A), remove the insert (C) from the outer groove on the clamp, and position the clamp on the side rail (B) using the outer groove (D).


4. Slide the inner clamp (B) into the


6. Tighten the clamp by turning the


outer clamp (A).


5. Turn the latch (C) onto the outer


clamp.


latch (C) toward the side rail. Make sure there is no gap between the rubber clamp pad and the side rail. If the truck box has a molded bed rail protector, insert the latch into the top notch on the inner clamp.


7.


8. Clean the vehicle's painted surface below the pull strap using a 50/50 mixture of rubbing alcohol and tap water.


Silverado/Sierra Hybrid - 2011


Black plate (9,1)


Cover


Installation


Storage


4-9


9. Remove the paper from the provided clear tape strip and apply to the painted surface below the pull strap.


Adjustment If there is excessive sideways movement of the crossrails, move and re-install the clamps on the loose areas using the inner groove of the clamp.


2. Verify the gap between the


adjuster screws and pivot mounts is 3/16 inch. Adjust if needed.


1. Place the cover assembly into


the front pivot mounts firmly against the adjustment screws.


Silverado/Sierra Hybrid - 2011


Black plate (10,1)


4-10


Storage


pickup box. If additional clearance is required, remove the clamp closest to the interference. Remove the orange strip to allow access to the outer slot of the upper clamp. Reinstall the clamp using the outer groove of the upper clamp. If bows are too loose, adjust the clamp closest to the bow with the excessive clearance to the inner groove of the upper clamp.


3. Loosen the wing bolt (A), then


slide the latch outboard into the side rail. Tighten down the wing bolt (A). Do this on both sides. Both latches must remain engaged and the wing bolts tightened while the cover is on the vehicle. Make sure by lifting up on each end of the cover assembly.


4. Unbuckle both straps and roll the cover out. Make sure that each bow falls in between the side rails. If the bows do not fit between the side rails, verify that the clamps are pushed fully outboard without any gaps between the clamp pad and


Silverado/Sierra Hybrid - 2011


Black plate (11,1)


Storage


4-11


6. Secure the driver side Velcro® of


Secure in Open Position


the cover to the side rail. Then pull the cover tight across the bed and fasten the Velcro® on the passenger side.


5. When the cover is rolled out,


place the rear rail into the rear pivot mounts. Firmly press down on each side of the cover, until the latches are secured into the side rails. If latch is too tight, loosen the tension adjustment screws. If the latch is not securely holding the rear rail, tighten the tension adjustment screws. Only the driver's side has a latch.


7. Secure the buckles by folding


them once, then slide them under the cord located on the cover.


1. To open the cover, open tailgate


and push down on the cover. The pull back on pull strap.


2. From the drivers side, roll the


cover up tightly.


3. When the cover is rolled up,


buckle both tie-down straps. Pull both straps tight.


Silverado/Sierra Hybrid - 2011


Black plate (12,1)


4-12


Storage


Removal


Adjustment


3. Pick the cover assembly up on


the driver side and pull the whole assembly off the truck box.


1.


1. Secure the cover (A) into the


open position.


2. Loosen wing bolts (B) on both


driver and passenger side of front rail, then slide latches inboard until released from the side rail.


If the cover is too loose, turn the tensioning screw clockwise to tighten the tension of the vinyl. This makes it harder to operate the rear release latch. The tensioning screws are located on each side rail. Use the provided 1/4 inch key to turn the tensioning screws.


2. Adjust the screws on both sides


to the same tension.


Silverado/Sierra Hybrid - 2011


Black plate (1,1)


Instruments and Controls


5-1


Instruments and Controls


Warning Lights, Gauges, and Indicators


Instrument Cluster . . . . . . . . . . . . 5-2
Tachometer . . . . . . . . . . . . . . . . . . . 5-3
Fuel Gauge . . . . . . . . . . . . . . . . . . . 5-3
Fuel Economy Gauge . . . . . . . . . 5-4
Engine Oil Pressure Gauge . . . 5-5


Engine Coolant Temperature


Gauge . . . . . . . . . . . . . . . . . . . . . . . 5-7
Charging System Light . . . . . . . . 5-7
Brake System Warning


Light . . . . . . . . . . . . . . . . . . . . . . . . . 5-8


Antilock Brake System (ABS)


Warning Light . . . . . . . . . . . . . . . . 5-9
StabiliTrak® Indicator Light . . . . 5-9
Engine Oil Pressure Light . . . . 5-10


Information Displays


Driver Information


Center (DIC) . . . . . . . . . . . . . . . . 5-11


Vehicle Messages


Vehicle Messages . . . . . . . . . . . 5-11
Battery Voltage and Charging


Messages . . . . . . . . . . . . . . . . . . 5-12
Brake System Messages . . . . 5-12
Door Ajar Messages . . . . . . . . . 5-12
Engine Oil Messages . . . . . . . . 5-12
Service Vehicle Messages . . . 5-12


Silverado/Sierra Hybrid - 2011


Black plate (2,1)


5-2


Instruments and Controls


Warning Lights, Gauges, and Indicators


Instrument Cluster


English version shown, Metric similar


Silverado/Sierra Hybrid - 2011


Black plate (3,1)


Instruments and Controls


5-3


Tachometer


When the engine is on, the tachometer indicator shows the engine's revolutions per minute (rpm).


Fuel Gauge


English Version shown, Metric


similar


When the gas engine is off and the key is in the ON/RUN position, the position of the tachometer indicator shows the state of the vehicle: . AUTO STOP position indicates


that the vehicle is still able to move and the engine could restart, by an Auto Start, at any time.


. OFF position indicates that the


vehicle is off.


English


When the ignition is on, the fuel gauge shows approximately how much fuel is left in the fuel tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The gauge first indicates E (empty) before the vehicle is out of fuel, but the vehicle should be refueled as soon as possible.


Metric


Silverado/Sierra Hybrid - 2011


Black plate (4,1)


5-4


Instruments and Controls


Listed are four situations that may occur with the fuel gauge, none of these indicate a problem: . At the gas station, the fuel pump shuts off before the gauge reads F (full). It takes a little more or less fuel to fill up than the fuel gauge indicated. For example, the gauge may have indicated the tank was half full, but it actually took a little more or less than half the tank's capacity to fill the tank. The gauge moves a little while turning a corner or while accelerating. The gauge does not go back to E (empty) when the ignition is turned off.


Fuel Economy Gauge


Metric


English


This gauge shows displays how efficiently the vehicle is being driven. There are three zones on the drive efficiency gauge. Green Zone: Fuel efficient driving behavior makes the indicator display in the green zone on the gauge.


Silverado/Sierra Hybrid - 2011


Black plate (5,1)


White Zones: Decreased fuel efficiency driving behavior makes the indicator display in the two white zones. The indicator in the white zone on the left side of the gauge indicates decreased fuel efficiency with a large amount of decelerations. The indicator in the white zone on the right side of the gauge indicates decreased fuel efficiency with a large amount of accelerations.


Instruments and Controls


5-5


Engine Oil Pressure Gauge


Metric


English


The oil pressure gauge shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals).


Silverado/Sierra Hybrid - 2011


Black plate (6,1)


5-6


Instruments and Controls


Oil pressure should be 200 to 550 kPa (29 to 80 psi). In certain situations, such as long extended idles on hot days, it could read as low as 105 kPa (15 psi) and still be considered normal. A reading in the low pressure zone may be caused by a dangerously low oil level or some other problem causing low oil pressure. Check the oil as soon as possible.


{ WARNING


Do not keep driving if the oil pressure is low. The engine can become so hot that it catches fire. Someone could be burned. Check the oil as soon as possible and have the vehicle serviced.


Notice: Lack of proper engine oil maintenance can damage the engine. The repairs would not be covered by the vehicle warranty. Always follow the maintenance schedule for changing engine oil.


AUTO STOP When the engine goes into Automatic Engine Stop, the oil pressure gauge drops to zero when the tachometer is at the AUTO STOP position. This is normal and oil pressure returns to the normal operating range once the engine starts. See Starting the Vehicle on page 9‑2 for more information. AUTO STOP displays in the Driver Information Center (DIC) when the vehicle speed is zero. See Driver Information Center (DIC) on page 5‑11 for more information.


Silverado/Sierra Hybrid - 2011


Black plate (7,1)


Engine Coolant Temperature Gauge


Metric


Instruments and Controls


5-7


Charging System Light


English


This gauge shows the engine coolant temperature. It also provides an indicator of how hard the vehicle is working. During a majority of the operation, the gauge reads 100°C (210°F) or less. If a load is being pulled or going up hills, it is normal for the temperature to fluctuate and go over the 113°C (235°F) mark. However, if the gauge reaches the 125°C (260°F) mark, it indicates that the cooling system is working beyond its capacity.


This 12‐volt battery light comes on briefly when the ignition is turned to ON/RUN, but the engine is not running, as a check to show it is working. It should go out once the engine has been started. If it stays on, or comes on while driving, there could be a problem with the 12‐volt charging system. Have the vehicle serviced by your dealer. A 12‐volt charging system Driver Information Center (DIC) message may also appear. See Driver Information Center (DIC) on page 5‑11 for more information. This light could indicate that there are electrical problems.


Silverado/Sierra Hybrid - 2011


Black plate (8,1)


5-8


Instruments and Controls


Have it checked right away. If a short distance must be driven with the light on, be certain to turn off all the accessories.


Brake System Warning Light With the ignition in ON/RUN, the brake system warning light comes on when the parking brake is set. If the vehicle is driven with the parking brake engaged, a chime sounds when the vehicle speed is greater than 8 km/h (5 mph). The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working.


If the warning light comes on and a chime sounds there could be a brake problem. Have the brake system inspected right away. This light also comes on due to low brake fluid. See the owner manual for more information.


Metric


English


This light should come on briefly when the ignition key is turned to ON/RUN. If it does not come on then, have it fixed so it will be ready to warn if there is a problem.


{ WARNING


The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service.


If the light comes on while driving, pull off the road and stop carefully. The pedal might be harder to push or can go closer to the floor. It may take longer to stop. If the light does not go out, have the vehicle towed for service. See General Towing Information on page 9‑9.


Silverado/Sierra Hybrid - 2011


Black plate (9,1)


Instruments and Controls


5-9


Antilock Brake System (ABS) Warning Light


For vehicles with the Antilock Brake System (ABS), this light comes on briefly when the engine is in ON/RUN. That is normal. If the light does not come on then, have it fixed so it will be ready to warn if there is a problem.


If the ABS light stays on, turn the ignition off, if the light comes on while driving, stop as soon as it is safely possible and turn the ignition off. Then start the engine again to reset the system. If the ABS light still stays on, or comes on again while driving, the vehicle needs service. If the regular brake system warning light is not on, the vehicle still has brakes, but not antilock brakes. If the regular brake system warning light is also on, the vehicle does not have antilock brakes and there is a problem with the regular brakes. See Brake System Warning Light on page 5‑8. For vehicles with a Driver Information Center (DIC), see Driver Information Center (DIC) on page 5‑11 for all brake related DIC messages.


StabiliTrak® Indicator Light


For vehicles with StabiliTrak, this warning light comes on briefly when the ignition is in ON/RUN. If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light goes off.


Silverado/Sierra Hybrid - 2011


Black plate (10,1)


5-10


Instruments and Controls


If the light comes on and stays on while driving, there could be a problem with the StabiliTrak system and the vehicle might need service. When this warning light is on, the StabiliTrak system is off and does not limit wheel spin. The light flashes if the system is active and is working to assist the driver with directional control of the vehicle in difficult driving conditions. See the owner manual for more information.


Engine Oil Pressure Light


{ WARNING


Do not keep driving if the oil pressure is low. The engine can become so hot that it catches fire. Someone could be burned. Check the oil as soon as possible and have the vehicle serviced.


Notice: Lack of proper engine oil maintenance can damage the engine. The repairs would not be covered by the vehicle warranty. Always follow the maintenance schedule for changing engine oil.


This light comes on briefly as a check it works, when the ignition is in ON/RUN . If it does not, have the vehicle serviced. If the light comes on and stays on, it means that oil is not flowing through the engine properly. The vehicle could be low on oil and might have some other system problem. During an AUTO STOP there is zero oil pressure, but this light will not come on.


Silverado/Sierra Hybrid - 2011


Black plate (11,1)


Instruments and Controls


5-11


Information Displays


Driver Information Center (DIC)


Trip/Fuel Menu Items Press the trip/fuel button to display the Trip/Fuel Menu items. For more items see “Driver Information Center (DIC)” in the owner manual.


BATTERY VOLTAGE This display shows the current battery voltage. If the voltage is in the normal range, the value will display. For example, the display may read BATTERY VOLTAGE 13 VOLTS. Your vehicle's charging system regulates voltage based on


the state of the battery. The battery voltage may fluctuate when viewing this information on the DIC. This is normal. See “Charging System Light” in the owner manual for more information. If there is a problem with the battery charging system, the DIC will display a message. See Battery Voltage and Charging Messages on page 5‑12.


INST ECON (Instantaneous Economy) This display normally shows instantaneous fuel economy. When the vehicle is in Auto Stop mode AUTO STOP or IFE = 0 L/100km or IFE = 99 MPG will be displayed. See Starting the Vehicle on page 9‑2 for more information.


Vehicle Messages Messages displayed on the DIC indicate the status of the vehicle or some action may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing V (Set/Reset).


The messages that require immediate action cannot be cleared until that action is performed. All messages should be taken seriously. Clearing the message does not correct the problem. The following are the possible messages for the Hybrid and some information about them. For information on other DIC messages, see “Vehicle Messages” in the owner manual.


Silverado/Sierra Hybrid - 2011


Black plate (12,1)


5-12


Instruments and Controls


Battery Voltage and Charging Messages


SERVICE BATTERY CHARGING SYSTEM If the 12V battery system faults or fails this message will appear on the DIC. The battery/charging system light will appear in the instrument panel cluster. See “Battery Warning Light” in the owner manual. Driving with this message on could drain the battery. Have the electrical system checked as soon as possible.


Brake System Messages


SERVICE BRAKE SYSTEM This message will be displayed if there is a problem with the brake system. You will still be able to brake, but it will be noticeably more difficult. Pull off the road to a safe location and have your vehicle


towed to the nearest dealer for service. See “Brakes,” “Brake System Warning Light,” and “ABS Brake System Warning Light” in the owner manual.


Door Ajar Messages


HOOD OPEN If the hood is not fully closed or there is a problem with the hood switch, this message will be displayed. Close the hood to clear the message. If the HOOD OPEN message continues to be displayed after verifying the hood is closed, you should have the hood switch serviced. Failure to service the hood switch properly can result in an Auto Start condition. Auto Stops will be disabled when this message is displayed. If the vehicle is in auto stop mode when this message appears, the engine will instantly start.


Engine Oil Messages


OIL PRESSURE LOW STOP ENGINE If engine oil pressure is low, this message will be displayed on the DIC. Stop the vehicle as soon as safely possible and do not operate it until the cause of the low oil pressure has been corrected. Check your oil level as soon as possible and have your vehicle serviced. See “Engine Oil” in the owner manual.


Service Vehicle Messages


SERVICE HYBRID SYSTEM If this message is displayed on the DIC, the vehicle may continue to operate, but you need to have it serviced as soon as possible. SERVICE POWER STEERING This message displays if a problem has been detected with the electric power steering. Have your vehicle serviced by your dealer immediately.


Silverado/Sierra Hybrid - 2011


Black plate (1,1)


Infotainment System


Introduction


Introduction . . . . . . . . . . . . . . . . . . . 7-1


Infotainment System 7-1


Introduction For vehicles with a navigation radio system, see the Navigation System manual for more information.


The display shows: . Auto Stop . Battery Charging . Engine Idle


2‐Wheel and 4‐Wheel Drive Modes for: ‐ Engine Power ‐ Battery Power ‐ Hybrid Power


To view the hybrid screen, press the MENU button on the radio. The hybrid screen displays when entering the Configuration Menu.


Silverado/Sierra Hybrid - 2011


Black plate (2,1)


7-2


Infotainment System


2 NOTES


Silverado/Sierra Hybrid - 2011


Black plate (1,1)


Climate Controls


Climate Control Systems


Climate Control Systems . . . . . . 8-1


Climate Control Systems For more information on the vehicle's climate control system, see “Climate Control System” in the owner manual. Electric Air Conditioning Compressor This hybrid vehicle has an electrically powered air conditioning compressor. This allows for continuous air conditioning operation and passenger comfort, even while the hybrid engine cycles on and off. When operating the climate control system, select the AUTO mode and the desired temperature setting. The climate control system automatically


Climate Controls


8-1


adjusts the fan speed and airflow direction. The climate control system continues to adjust the climate control settings chosen for best use of electrical power. At mild temperatures, select a warmer air conditioner temperature or turn the air conditioner off to get maximum fuel economy. Continuous air conditioner use can cause the vehicle to Auto Start more frequently. During hot weather, driving with the windows closed and the air conditioner set to Auto mode, will result in better Hybrid system performance. Some noise may be heard occasionally from the compressor, especially when air conditioning use is high and the engine has turned off.


Silverado/Sierra Hybrid - 2011


Black plate (2,1)


8-2


Climate Controls


2 NOTES


Silverado/Sierra Hybrid - 2011


Black plate (1,1)


Driving and Operating


Driving Information


Automatic Transmission


Automatic Transmission . . . . . . . 9-5
Manual Mode . . . . . . . . . . . . . . . . . 9-7


Brakes


Regenerative Braking . . . . . . . . . 9-8


Steering . . . . . . . . . . . . . . . . . . . . . . . 9-1


Towing


Starting and Operating


Starting the Vehicle . . . . . . . . . . . 9-2
Engine Coolant Heater . . . . . . . . 9-3


Engine Exhaust


Running the Vehicle While


Parked . . . . . . . . . . . . . . . . . . . . . . 9-4


General Towing Information . . . 9-9
Trailer Towing . . . . . . . . . . . . . . . . . 9-9
Towing Equipment . . . . . . . . . . . 9-10


Driving and Operating


9-1


Driving Information


Steering This vehicle has On-Demand Electric-Assist Power Steering instead of conventional full-time hydraulic power steering. It uses electricity supplied by the same battery which is re-charged by the regenerative braking system. Because the system is On-Demand Electric-Assist, energy is used only when the steering wheel is turned, or when the steering gear is used to help isolate the forces of rough roads. This system does not use power steering fluid, making it maintenance-free.


Silverado/Sierra Hybrid - 2011


Black plate (2,1)


9-2


Driving and Operating


Starting and Operating


Starting the Vehicle { WARNING


Exiting the vehicle, without first shifting into P (Park), may cause the vehicle to move, and you or others can be seriously injured. Because the vehicle has the Automatic Engine Start/Stop feature, the vehicle’s engine might seem to be shut off when you come to a complete stop. However, once the brake pedal is released, the vehicle can move. The vehicle’s engine can also restart at any time. Shift to P (Park) and turn the ignition to LOCK/OFF, before exiting the vehicle.


Start the engine as you would any other engine. See “Starting the Engine” in the owner manual for more information on starting. If pulling a trailer with trailer brakes, see Towing Equipment on page 9‑10 for more information. Auto Stop The vehicle has an Auto Stop feature. After a successful engine start, the engine may turn off and operate in the Auto Stop mode. Some of the vehicle conditions that allow the engine to stop running and enter the Auto Stop mode are:


Ignition switch is in the ON/RUN position. The hood is closed. The gear selector is in P (Park), R (Reverse), N (Neutral) or D (Drive). The hybrid battery is at an acceptable state of charge.


The hybrid battery voltage, temperature or power limits are not exceeded. In very hot conditions, Auto Stop may be unavailable until the hybrid battery has cooled. The engine is at operating temperature. The vehicle may enter Auto Stop after a remote vehicle start.


With your foot off the brake and the vehicle on level ground, the hybrid drive motor may cause the vehicle to roll slowly forward, even when the engine is in Auto Stop. Keep your foot firmly on the brake pedal until you are ready for the vehicle to move. Engine OFF and AUTO STOP modes are indicated on the tachometer display. When the tachometer needle indicates OFF, the engine is not running and will remain off until the ignition key is placed in the START position or a remote vehicle start is performed. When the tachometer needle


Silverado/Sierra Hybrid - 2011


Black plate (3,1)


indicates AUTO STOP, the hybrid system is on, the engine is not running, but may Auto Start at any time without notice. See Tachometer on page 5‑3 for more information. A chime will sound if the driver door is opened while in Auto Stop as a reminder that the ignition switch is not in the LOCK/OFF position. Always turn the ignition switch to LOCK/OFF and remove the key from the ignition switch when exiting the vehicle. Auto Start The vehicle also has an Auto Start feature. The engine will remain off while in Auto Stop mode until vehicle conditions require the engine to run. The near-instant starting of the engine from Auto Stop mode is called Auto Start. Some of the vehicle conditions that may cause the engine to Auto Start are:


The hood is opened. The gear selector is in M (Manual Mode).


The hybrid battery state of charge is too low. The hybrid battery voltage, temperature or power limits are exceeded.


. A remote vehicle start has been


requested. The engine is not at operating temperature.


. Acceleration demands require


the use of the engine.


EV Mode The vehicle also has an Electric Vehicle (EV) mode which uses only the electric motor to move the vehicle. With light acceleration, the vehicle will drive in EV mode. EV mode is unavailable when the vehicle is out of fuel. If increased acceleration is required, or the vehicle reaches approximately 40 km/h (30 mph), the engine will start automatically.


Driving and Operating


9-3


The engine shuts off at speeds below 40 km/h (25 mph) unless the transmission is in M (Manual Mode) or Auto Stop is disabled. During heavy acceleration, both the engine and hybrid electric motors supply power. A sensation similar to a transmission gear change can be felt as the transmission changes modes. Engine RPM may remain above 4,000 RPM for a longer period during hard acceleration.


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 −18°C (0°F). 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 −18°C (0°F).


Silverado/Sierra Hybrid - 2011


Black plate (4,1)


9-4


Driving and Operating


Using the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the


electrical cord. The cord is secured to a wiring harness between the engine and the Hybrid Auxiliary Underhood Fuse Block with a clip. Carefully remove the wire tie which secures the electrical cord. Do not cut the electrical cord.


3. Plug the cord into a normal, grounded 110-volt AC outlet.


{ WARNING 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.


(Continued)


WARNING (Continued)


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 in the area where you will be parking the vehicle for the best advice on this.


Engine Exhaust


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.


{ WARNING


Exiting the vehicle, without first shifting into P (Park), may cause the vehicle to move, and you or others can be seriously injured. Because the vehicle has the Automatic Engine Start/Stop feature, the vehicle’s engine might seem to be shut off when you come to a complete stop. However, once the brake pedal is released, the vehicle can move. The vehicle’s engine can also restart at any time.


(Continued)


Silverado/Sierra Hybrid - 2011


Black plate (5,1)


WARNING (Continued)


Shift to P (Park) and turn the ignition to LOCK/OFF, before exiting the vehicle.


Follow the proper steps to be sure the vehicle will not move. See “Shifting Into Park” in the owner manual for more information. If pulling a trailer, see “Driving Characteristics and Towing Tips” in the owner manual.


Automatic Transmission The vehicle has an electronic shift position indicator within the instrument panel cluster. There are several different positions for the shift lever.


See “Range Selection Mode” in this section. P (Park): This position locks the 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).


Driving and Operating


9-5


See “Shifting Into Park” in the Index of vehicle's owner manual for more information.


{ WARNING


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” in the owner manual. If you are pulling a trailer, see “Driving Characteristics and Towing Tips” in the owner manual.


Silverado/Sierra Hybrid - 2011


Black plate (6,1)


9-6


Driving and Operating


{ WARNING


If you have Four-Wheel Drive, the vehicle will be free to roll — even if the shift lever is in P (Park) — if the transfer case is in Neutral. So, be sure the transfer case is in a drive gear, Two-Wheel Drive High or Four-Wheel Drive High or Four-Wheel Drive Low — not in Neutral. See “Shifting Into Park” in the owner manual.


To rock the vehicle back and forth to get out of snow, ice, or sand without damaging the transmission, see “If the Vehicle is Stuck” in the Index of the vehicle's owner manual. N (Neutral): In this position, the engine and transmission are not connected with the wheels. To restart the engine when the vehicle is already moving, use N (Neutral) only.


{ WARNING


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.


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. If you need more power for passing, and you are: . Going less than about 55 km/h (35 mph), push the accelerator pedal about halfway down.


. Going about 55 km/h (35 mph) or


more, push the accelerator all the way down.


D (Drive) or M (Manual Mode) 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.


Silverado/Sierra Hybrid - 2011


Black plate (7,1)


Downshifting the transmission in slippery road conditions could result in skidding. See “Skidding” under “Loss of Control” in the owner manual for more information. When temperatures are very cold, the 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. If the vehicle has this feature, see Manual Mode on page 9‑7.


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. The vehicle has a shift stabilization feature that adjusts the transmission shifting to the current driving conditions to reduce rapid upshifts and downshifts. If the shift stabilization feature determines that a current vehicle speed cannot be maintained, the transmission does not upshift. In some cases, this may appear to be a delayed shift, however the transmission is operating normally.


Driving and Operating


9-7


Manual Mode


Range Selection Mode


The Range Selection Mode controls the vehicle's transmission. To use this feature: 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.


Silverado/Sierra Hybrid - 2011


Black plate (8,1)


9-8


Driving and Operating


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. The vehicle can automatically shift to lower gears as it adjusts to driving conditions. When 3 (Third) is selected, 1 (First) through 3 (Third) gears are automatically shifted by the vehicle, but 4 (Fourth) cannot be used until it is selected. 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. When you move the shift lever into M, the transmission will default to M4. In this gear range, effective engine braking occurs at speeds above 72 km/h (45 mph).


Pushing the minus (−) button on the shift lever reduces the gear range. In the M3 gear range, effective engine braking occurs at speeds above 56 km/h (35 mph). In the M2 gear range, effective engine braking occurs at speeds above 40 km/h (25 mph). In the M1 gear range, effective engine braking occurs at speeds above 16 km/h (10 mph). When operating in M (Manual Mode), Auto Stop is disabled. For better vehicle efficiency, operate the vehicle in D (Drive) not M (Manual Mode). Cruise control can be used while using the Range Selection Mode.


Brakes


Regenerative Braking Regenerative braking is a hybrid technology that enables the electric drive motor to operate as a generator when coasting or braking. Energy from the moving vehicle recharges the hybrid battery. The hydraulic disc brakes work with the regenerative braking to insure effective braking, such as when a high braking demand is requested. The braking system is computer controlled and blends the regenerative braking with the conventional hydraulic disc brakes to meet any requirements for deceleration. The controller interprets the braking request and uses regenerative braking, conventional hydraulic braking or a combination of both as necessary.


Silverado/Sierra Hybrid - 2011


Black plate (9,1)


Because the controller applies the hydraulic brakes through its high pressure accumulator, you may occasionally hear the motor driven pump when it recharges the system. This is normal. In the event of a controller problem, the brake pedal may be harder to push and the stopping distance may be longer.


Driving and Operating


9-9


a trailer are all important. It can depend on any special equipment on the vehicle, and the amount of tongue weight the vehicle can carry. Maximum trailer weight is calculated assuming only the driver is in the tow vehicle and it has all the required trailering equipment. The weight of additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the maximum trailer weight.


Towing


General Towing Information Consult your dealer or a professional towing service if the disabled vehicle needs to be towed.


Trailer Towing For more information, see “Trailer Towing” in the owner manual. Weight of the Trailer How heavy can a trailer safely be? It depends on how the rig is used. For example, speed, altitude, road grades, outside temperature and how much the vehicle is used to pull


Silverado/Sierra Hybrid - 2011


Black plate (10,1)


9-10


Driving and Operating


Use the following charts to determine how much the vehicle can weigh, based upon the vehicle model and options.


Axle Ratio


Maximum Trailer Weight


Vehicle 2WD 6.0 L V8
4WD 6.0 L V8
*The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for the vehicle should not be exceeded.


5 443 kg (12,000 lbs) 5 443 kg (12,000 lbs)


2 767 kg (6,100 lbs) 2 676 kg (5,900 lbs)


3.08
3.08


GCWR*


Towing Equipment


Trailer Brakes If a trailer is being towed that has trailer brakes and the trailer brakes are manually applied while driving slower than 40 km/h (25 mph), the vehicle may go into auto stop mode


even if the brakes are not being pressed. Using the trailer brake system manually can make the hybrid vehicle perform as if the brake pedal in the vehicle is being pressed. The trailer brake operation check will still work. If the trailer brakes are manually applied for an extended period of time, the


SERVICE BRAKE SYSTEM message comes on in the Driver Information Center. The message goes off after the trailer brakes have been released. No other action is necessary. For more information, see “Towing Equipment” in the owner manual.


Silverado/Sierra Hybrid - 2011


Black plate (1,1)


Vehicle Care


Vehicle Checks Doing Your Own


Service Work . . . . . . . . . . . . . . . 10-2


Engine Compartment


Overview . . . . . . . . . . . . . . . . . . . 10-4


Automatic Transmission


Fluid . . . . . . . . . . . . . . . . . . . . . . . 10-5


Drive Motor/Generator Control


Module (DMCM) Coolant Surge Tank Pressure Cap . . . . . . . . . . . . . . 10-8


Drive Motor/Generator Control


Module (DMCM) Cooling System . . . . . . . . . . . . . . . . . . . . . 10-8
Power Steering Fluid . . . . . . . 10-12
Battery . . . . . . . . . . . . . . . . . . . . . 10-12


Electrical System


High Voltage Devices and


Wiring . . . . . . . . . . . . . . . . . . . . . 10-13


Fuses and Circuit


Breakers . . . . . . . . . . . . . . . . . . 10-13


Engine Compartment Fuse


Block . . . . . . . . . . . . . . . . . . . . . 10-14


Vehicle Care


10-1


Jump Starting


Jump Starting . . . . . . . . . . . . . . 10-15


Towing


Recreational Vehicle


Towing . . . . . . . . . . . . . . . . . . . . 10-19


Appearance Care


Exterior Care . . . . . . . . . . . . . . . 10-24


Silverado/Sierra Hybrid - 2011


Black plate (2,1)


10-2


Vehicle Care


Vehicle Checks


Doing Your Own Service Work


{ WARNING


Never try to do your own service on hybrid components. You can be injured and the vehicle can be damaged if you try to do your own service work. Service and repair of these hybrid components should only be performed by a trained service technician with the proper knowledge and tools.


{ WARNING You can be injured and the vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it.


. Be sure you have sufficient knowledge, experience, the proper replacement parts, and tools before attempting any vehicle maintenance task.


. Be sure to use the proper


nuts, bolts, and other fasteners. English and metric fasteners can be easily confused. If the wrong fasteners are used, parts can later break or fall off. You could be hurt.


If doing some of your own service work, use the proper service manual. It tells you much more about how to service the vehicle than this manual can. To order the proper service manual, see “Service Publications Ordering Information” in the owner manual. This vehicle has an airbag system. Before attempting to do your own service work, see “Airbag System Check” in the owner manual. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See “Maintenance Records” in the owner manual.


Silverado/Sierra Hybrid - 2011


Black plate (3,1)


Vehicle Care


10-3


2 NOTES


Silverado/Sierra Hybrid - 2011


Black plate (4,1)


10-4


Vehicle Care


Engine Compartment Overview


6.0 L V8 Engine


Silverado/Sierra Hybrid - 2011


Black plate (5,1)


A. See “Engine Air Cleaner/Filter”


in the owner manual.


B. Drive Motor/Generator Control


Module (DMCM). See Drive Motor/Generator Control Module (DMCM) Cooling System on page 10‑8.


C. Engine Oil Dipstick (Out of


View). See “Engine Oil” in the owner manual.


D. Automatic Transmission Fluid


Dipstick. See Automatic Transmission Fluid on page 10‑5.


E. Brake Fluid Reservoir. See


“Brakes” in the owner manual.


F. See “Engine Compartment Fuse


Block” in the owner manual.


G. Windshield Washer Fluid


Reservoir. See “Washer Fluid” in the owner manual.


H. Hybrid Auxiliary Fuse Block


(Out of View). See Engine Compartment Fuse Block on page 10‑14.


I. DMCM Coolant Surge Tank


Pressure Cap. See Drive Motor/ Generator Control Module (DMCM) Coolant Surge Tank Pressure Cap on page 10‑8. J. Coolant Surge Tank Pressure Cap. See “Engine Coolant” in the owner manual.


K. Engine Oil Fill Cap (Out of


View). See “Engine Oil” in the owner manual.


Automatic Transmission Fluid


When to Check and Change Automatic Transmission Fluid It is usually not necessary to check the transmission fluid level. The only reason for fluid loss is a transmission leak or overheating the transmission. If a small leak is suspected, then use the following checking procedures to check the


Vehicle Care


10-5


fluid level. However, if there is a large leak, then it may be necessary to have the vehicle towed to a dealer service department and have it repaired before driving the vehicle further. Notice: Use of the incorrect automatic transmission fluid may damage the vehicle, and the damages may not be covered by the vehicle warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 11‑2. Change the fluid and filter at the scheduled maintenance intervals listed in Scheduled Maintenance. Be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 11‑2.


Silverado/Sierra Hybrid - 2011


Black plate (6,1)


10-6


Vehicle Care


How to Check Automatic Transmission Fluid Notice: Too much or too little fluid can damage the transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Too little fluid could cause the transmission to overheat. Be sure to get an accurate reading if checking the transmission fluid. Before checking the fluid level, prepare the vehicle as follows: 1. Start the engine and park the


vehicle on a level surface. Keep the engine running.


2. Apply the parking brake and


place the shift lever in P (Park).


3. With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, move the shift lever back to P (Park).


4. Allow the engine to idle


(500–800 RPM) for at least one minute. Slowly release the brake pedal.


5. Keep the engine running and


press the Trip/Fuel button or trip odometer reset stem until TRANS TEMP (Transmission Temperature) displays on the Driver Information Center (DIC).


6. Using the TRANS TEMP


reading, determine and perform the appropriate check procedure. If the TRANS TEMP reading is not within the required temperature ranges, allow the vehicle to cool, or operate the vehicle until the appropriate transmission fluid temperature is reached.


Cold Check Procedure Use this procedure only as a reference to determine if the transmission has enough fluid to be operated safely until a hot check procedure can be made. The hot check procedure is the most accurate method to check the fluid level. Perform the hot check procedure at the first opportunity. Use this cold check procedure to check fluid level when the transmission temperature is between 24°C and 34°C (75°F and 93°F).


1. Locate the transmission dipstick


at the rear of the engine compartment, on the passenger side of the vehicle. See Engine Compartment Overview on page 10‑4 for more information.


Silverado/Sierra Hybrid - 2011


Black plate (7,1)


3.


2. Pull out the dipstick and wipe it with a clean rag or paper towel. Install the dipstick by pushing it back in all the way, wait three seconds, and then pull it back out again.

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