height adjustment GMC YUKON 1999 Owner's Manual

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6-32
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly torque wheel nuts in the
proper sequence to GM specifications.
Your rear drum brakes don't have wear indicators, but if
you ever hear a rear brake rubbing noise, have the rear
brake linings inspected immediately. Also, the rear
brake drums should be removed and inspected each time
the tires are removed for rotation or changing. When
you have the front brake pads replaced, have the rear
brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.
See ªBrake System Inspectionº in Section 7 of this
manual under Part C ªPeriodic Maintenance
Inspections.º
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in pedal
travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you make a brake stop, your disc brakes
adjust for wear.
If your brake pedal goes down farther than normal, your
rear drum brakes may need adjustment. Adjust them by
backing up and firmly applying the brakes a few times.
Replacing Brake System Parts
The braking system on a modern vehicle is complex. Its
many parts have to be of top quality and work well
together if the vehicle is to have really good braking.
Your vehicle was designed and tested with top
-quality
GM brake parts. When you replace parts of your braking
system
-- for example, when your brake linings wear
down and you have to have new ones put in
-- be sure
you get new approved GM replacement parts. If you
don't, your brakes may no longer work properly. For
example, if someone puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change
-- for the worse. The braking
performance you've come to expect can change in many
other ways if someone puts in the wrong replacement
brake parts.

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9-9
Driver Position 1-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extender 1-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Wear Properly 1-14 . . . . . . . . . . . . . . . . . . . . . . . . .
Incorrect Usage 1-17, 1-55, 1-56 . . . . . . . . . . . . . . . . . . . .
Lap Belt 1-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lap-Shoulder 1-14, 1-31 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Larger Children 1-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passenger Position 1-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Questions and Answers 1-13 . . . . . . . . . . . . . . . . . . . . . . . .
Rear Comfort Guides 1-34 . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Seat Outside Passenger Positions 1-30 . . . . . . . . . . . .
Rear Seat Passengers 1-30 . . . . . . . . . . . . . . . . . . . . . . . . . .
Reminder Light 1-10, 2-72 . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing After a Crash 1-57 . . . . . . . . . . . . . . . . . . . . . . . .
Right Front Passenger Position 1-23 . . . . . . . . . . . . . . . . . .
Shoulder Belt Height Adjuster 1-16, 1-32 . . . . . . . . . . . . . .
Smaller Children and Babies 1-38 . . . . . . . . . . . . . . . . . . . .
Use During Pregnancy 1-22 . . . . . . . . . . . . . . . . . . . . . . . . .
Why They Work 1-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Chains 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Defects, Reporting 8-10 . . . . . . . . . . . . . . . . . . . . . . . .
Safety Warnings and Symbols iii. . . . . . . . . . . . . . . . . . . . . . .
Scheduled Maintenance Services 7
-4 . . . . . . . . . . . . . . . . . . . .
Seatback, Reclining Front 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . Seats
Folding the Rear 1
-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heated Front 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heated Rear 1-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar Adjustment 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 1-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Restraint Systems 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Controls 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing a Child Restraint 1-48, 1-50, 1-52 . . . . . . . . . . . .
Second Gear, Automatic Transmission 2-27 . . . . . . . . . . . . . .
Security Light 2-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Shade 2-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 6-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulletins, Ordering 8-12, 8-13 . . . . . . . . . . . . . . . . . . . . . . .
Engine Soon Light 2-76 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manuals, Ordering 8-12, 8-13 . . . . . . . . . . . . . . . . . . . . . . .
Parts Identification Label 6-55 . . . . . . . . . . . . . . . . . . . . . . .
Publications, Ordering 8-12, 8-13 . . . . . . . . . . . . . . . . . . . .
Work, Doing Your Own 6-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Service and Appearance Care 6-1 . . . . . . . . . . . . . . . . . . . . . .
Service and Owner Publications 8-12, 8-13 . . . . . . . . . . . . . .
Service Four-Wheel Drive Warning Light 2-80 . . . . . . . . . . . .
Service Publications 8-12, 8-13 . . . . . . . . . . . . . . . . . . . . . . . .