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Instruments and Controls 155
STABILITRAK INITIALIZING
This message may come on if theStabiliTrak system has not fullyinitialized because of roadconditions or the incorrect tire size.When the StabiliTrak system is fullyinitialized, the message will turn off.SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.Ifthismessage continues to be displayedfor multiple ignition cycles and ondifferent road surfaces, see yourdealer for service.
TRACTION CONTROL OFF
This message displays when thetraction control has been turned off.SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.
TRACTION CONTROL ON
This message displays when thetraction control is active. SeeTr a c t i o n C o n t r o l / E l e c t r o n i c S t a b i l i t yControl0295.
STABILITRAK OFF
This message displays when theStabiliTrak system has been turnedoff. Adjust your driving accordingly.
To l i m i t w h e e l s p i n a n d r e a l i z e t h efull benefits of the stabilityenhancement system, you shouldnormally leave StabiliTrak on. SeeTr a c t i o n C o n t r o l / E l e c t r o n i c S t a b i l i t yControl0295.
STABILITRAK OFF may alsodisplay when the stability controlhas been automatically disabled.The following conditions can causethis message to appear:
.The system is overheating,which could occur if StabiliTrakactivates continuously for anextended period of time.
.The brake system warning lightis on. SeeBrake SystemWarning Light0140.
.The stability system takes longerthan usual to complete itsdiagnostic checks due to drivingconditions.
.An engine or vehicle-relatedproblem has been detected andthe vehicle needs service. Seeyour dealer.
.The transfer case is inFour-Wheel Drive Low.
The message turns off as soon asthe conditions that caused themessage to be displayed are nolonger present.
Airbag System Messages
SERVICE AIRBAG
This message displays if there is aproblem with the airbag system.Ta k e t h e v e h i c l e t o y o u r d e a l e r f o rservice.
Safety Belt Messages
SHIFTER LOCKED. BUCKLE
SEATBELT
This message displays if the vehicleis equipped with the Safety BeltAssurance System and the driverand front outboard passenger,if present, safety belts are notbuckled. The vehicle will not shiftout of P (Park). Buckle the safetybelt(s) to unlock the shift lever.
This system may not allow thevehicle to shift out of P (Park) if anobject—such as a briefcase,handbag, grocery bag, laptop,
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268 Driving and Operating
The switch used to adjust thepedals is on the center stack, belowthe climate controls.
Lift the switch up to move thepedals closer to your body. Pressthe switch down to move thepedals away.
Before you start driving, fully pressthe brake pedal to confirm theadjustment is right for you.
The vehicle may have a memoryfunction, which lets pedal settingsbe saved and recalled. SeeMemorySeats061.
Ignition Positions
The ignition switch has four differentpositions.
To s h i f t o u t o f P ( P a r k ) , t h e i g n i t i o nmust be in ON/RUN or ACC/ACCESSORY and the regular brakepedal must be applied.
0(STOPPINGTHEENGINE/LOCK/OFF) :When the vehicle is stopped,turn the ignition switch to LOCK/OFF to turn the engine off. RetainedAccessory Power (RAP) will remainactive. SeeRetained AccessoryPower (RAP)0271.
This position locks the ignition andsteering wheel. It also locks thetransmission on automatictransmission vehicles. The key canbe removed in LOCK/OFF.
The steering can bind with thewheels turned off center. If thishappens, move the steering wheelfrom right to left while turning thekey to ACC/ACCESSORY. If thisdoes not work, then the vehicleneeds service.
Do not turn the engine off when thevehicle is moving. This will cause aloss of power assist in the brakeand steering systems and disablethe airbags.
If the vehicle must be shut off in anemergency:
1. Brake using a firm and steadypressure. Do not pump thebrakes repeatedly. This maydeplete power assist, requiringincreased brake pedal force.
2. Shift the vehicle to N (Neutral).This can be done while thevehicle is moving. After shiftingto N (Neutral), continue to
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Driving and Operating 269
firmly apply the brakes andsteer the vehicle to a safelocation.
3. Come to a complete stop. Shiftto P (Park) with an automatictransmission, or Neutral with amanual transmission. Turn theignition to LOCK/OFF.
4. Set the parking brake. SeeParking Brake0293.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,and must be shut off while driving,turn the ignition to ACC/ACCESSORY.
On vehicles with an automatictransmission, the shift lever must bein P (Park) to turn the ignition switchto LOCK/OFF.
Caution
Using a tool to force the key to
turn in the ignition could cause
damage to the switch or break the
key. Use the correct key, make
sure it is all the way in, and turn it
only with your hand. If the key
cannot be turned by hand, see
your dealer.
1(ACC/ACCESSORY):Thisposition lets things like the radioand the windshield wipers operatewhile the engine is off. It alsounlocks the steering wheel. Use thisposition if the vehicle must bepushed or towed.
2(ON/RUN):This position can beused to operate the electricalaccessories and to display someinstrument cluster warning andindicator lights. This position canalso be used for service anddiagnostics, and to verify the properoperation of the malfunctionindicator lamp as may be requiredfor emission inspection purposes.The switch stays in this position
when the engine is running. Thetransmission is also unlocked in thisposition on automatic transmissionvehicles.
If the key is left in the ACC/ACCESSORY or ON/RUN positionwith the engine off, the battery couldbe drained. The vehicle may notstart if the battery is allowed to drainfor an extended period of time.
3(START):This is the position thatstarts the engine. When the enginestarts, release the key. The ignitionswitch returns to ON/RUN fordriving.
Awarningtonewillsoundwhenthedriver door is opened, the ignition isin ACC/ACCESSORY or LOCK/OFF, and the key is in the ignition.
Starting the Engine
If the vehicle has a diesel engine,see the Duramax dieselsupplement.
For an eAssist vehicle, see theSilverado/Sierra eAssistsupplement.