Page 479 of 522

Parking Brake and Automatic
Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your
vehicle could begin to move. You or
others could be injured and property
could be damaged. Make sure there is
room in front of your vehicle in case it
begins to roll. Be ready to apply the
regular brake at once should the vehicle
begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular
brake, set the parking brake.
To check the parking brake’s holding ability:
With the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure
from the regular brake pedal. Do this until the
vehicle is held by the parking brake only.
To check the PARK (P) mechanism’s holding
ability: With the engine running, shift to
PARK (P). Then release the parking brake
followed by the regular brake.
Contact your GM Goodwrench
®dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take
care to clean thoroughly any areas where mud and
other debris can collect.
479
Page 508 of 522

Appearance Care (cont.)
Tires........................................................ 450
Underbody Maintenance........................... 451
Vehicle Care/Appearance Materials.......... 452
Washing Your Vehicle.............................. 447
Weatherstrips........................................... 447
Windshield and Wiper Blades................... 449
Wood Panels........................................... 447
Ashtray(s).................................................... 187
Audio System(s).......................................... 240
Audio Steering Wheel Controls................. 269
Care of Your CD Player........................... 271
Care of Your CDs.................................... 271
Diversity Antenna System......................... 272
Navigation/Radio System,
see Navigation Manual......................... 266
Radio with CD......................................... 246
Rear Seat Audio (RSA)............................ 266
Setting the Time..............................242, 244
Theft-Deterrent Feature............................ 268
Understanding Radio Reception............... 270
XM™ Satellite Radio Antenna System...... 272
Automatic Transmission
Fluid........................................................ 367
Operation................................................. 122B
Battery........................................................ 385
Electric Power Management..................... 183
Exterior Lighting Battery Saver................. 181
Before Leaving on a Long Trip.................... 313
Brake
Anti-Lock Brake System (ABS)................. 279
Emergencies............................................ 281
Panic Assist............................................. 284
Parking.................................................... 127
System Warning Light.............................. 204
Brake Pedal, Throttle................................... 120
Brakes........................................................ 381
Braking....................................................... 278
Braking in Emergencies............................... 281
Break-In, New Vehicle................................. 116
Bulb Replacement....................................... 396
Halogen Bulbs......................................... 396
High Intensity Discharge (HID)
Lighting................................................ 396
Buying New Tires........................................ 416
508
Page 517 of 522

P
Paint, Damage............................................ 451
Panic Brake Assist...................................... 284
Parade Dimming.......................................... 182
Park Aid...................................................... 184
Park (P)
Shifting Into............................................. 129
Shifting Out of......................................... 131
Parking
Assist....................................................... 184
Brake....................................................... 127
Over Things That Burn............................ 131
Passenger Airbag Status Indicator............... 202
Passenger Compartment Air Filter............... 195
Passenger Sensing System........................... 81
Passing....................................................... 287
PASS-Key
®III+........................................... 114
PASS-Key®III+ Operation........................... 114
Power
Accessory Outlet(s).................................. 186
Door Locks.............................................. 101
Electrical System..................................... 454
Liftgate..................................................... 104
Lumbar Controls........................................ 10
Retained Accessory (RAP)....................... 118
Seat.......................................................... 10Power (cont.)
Steering Fluid.......................................... 379
Windows.................................................. 109
Pretensioners, Safety Belt............................. 42
Programmable Automatic Door Locks.......... 102
Q
Questions and Answers
About Safety Belts..................................... 26
R
Radios........................................................ 240
Care of Your CD Player........................... 271
Care of Your CDs.................................... 271
Navigation/Radio System,
see Navigation Manual......................... 266
Radio with CD......................................... 246
Rear Seat Audio...................................... 266
Setting the Time..............................242, 244
Theft-Deterrent......................................... 268
Understanding Reception......................... 270
Reading Lamps........................................... 182
Rear Air Conditioning System...................... 195
Rear Axle.................................................... 394
Limited-Slip.............................................. 283
517