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Keys............................................................ 113
Remote Keyless Entry System.................. 114
Remote Keyless Entry System
Operation............................................... 115
Doors and Locks........................................ 123
Door Locks................................................ 123
Power Door Locks..................................... 124
Delayed Locking........................................ 124
Programmable Automatic Door Locks........ 124
Rear Door Security Locks......................... 124
Lockout Protection..................................... 125
Liftgate/Liftglass......................................... 126
Power Liftgate........................................... 128
Power Running Boards.............................. 132
Windows...................................................... 133
Power Windows........................................ 134
Sun Visors................................................ 135
Theft-Deterrent Systems............................. 135
Content Theft-Deterrent............................. 135
PASS-Key
®III+......................................... 137
PASS-Key®III+ Operation......................... 137Starting and Operating Your Vehicle......... 139
New Vehicle Break-In................................ 139
Ignition Positions....................................... 140
Retained Accessory Power (RAP)............. 141
Starting the Engine.................................... 141
Adjustable Throttle and Brake Pedal.......... 142
Engine Coolant Heater.............................. 143
Automatic Transmission Operation............. 144
Tow/Haul Mode......................................... 150
Parking Brake........................................... 151
Shifting Into Park (P) ................................. 152
Shifting Out of Park (P)............................. 153
Parking Over Things That Burn................. 154
Engine Exhaust......................................... 155
Running the Engine While Parked............. 156
Mirrors......................................................... 157
Automatic Dimming Rearview Mirror with
Intellibeam™, OnStar
®, Compass, and
Temperature Display.............................. 157
Automatic Dimming Rearview Mirror with
OnStar
®, Compass and Temperature
Display................................................... 159
Outside Power Foldaway Mirrors............... 162
Section 2 Features and Controls
111
Page 145 of 574

There are several different positions for the shift
lever.
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 (P). See Torque Lock
(Automatic Transmission) underShifting Into
Park (P) on page 152for 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 rmly 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 152.Ifyou
are pulling a trailer, seeTowing a Trailer
on page 379.
145
Page 151 of 574

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
DSC mode, grade braking is deactivated, allowing
the driver to select a gear.
SeeAutomatic Transmission Operation on
page 144for more information.
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 will activate and the warning light will
ash when the parking brake is applied and
the vehicle is moving at least 3 mph (5 km/h) for
at least three seconds.To release the parking brake, hold the regular brake
pedal down. Pull the bottom edge of the lever,
located above the parking brake pedal, with the
parking brake symbol, to release the parking brake.
If the ignition is on when the parking brake is
released, the brake system warning light will go off.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify
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, seeTowing a Trailer on page 379.
151
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