GMC Hummer H3 2008 Owner's Handbook Manual page 179

Section 3 - Starting and Operating Instructions
Vehicle Parking ..............................................223
Automatic Transmission (If fitted)..................224
Manual Transmission (If fitted) ......................226
Traction..........................................................226
Traction Control System................................226
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Stabilitrak System........................................226
Locking Rear Axle (If fitted) ...........................227
Steering .........................................................228
Power Steering..............................................228
Brakes ............................................................229
Disc Brake Wear Indicators ............................229
Brake Adjustment..........................................230
Brake Pedal Travel .........................................230
Anti-lock Brake System ..................................231
Park Brake .....................................................231
. . . 178
Suspension..................................................... 232
Vehicle Loading ............................................. 233
Tyre and Loading Information Label.............. 234
Certification Label ......................................... 234
Trailer Towing ............................................... 235
Hitches ......................................................... 239
Safety Chains ................................................ 240
Trailer Brakes ................................................ 240
Trailer Turn Signals ....................................... 240
Parking on Hills ............................................. 241
Maintenance When Trailer Towing ............... 242