Page 336 of 452
Front Turn Signal, Sidemarker and
Parking Lamps
To replace the front turn signal, sidemarker and/or
parking lamp bulb(s), do the following:
1. Use a small tool to unlatch the outboard clip
on the lamp.
2. Pull the lamp forward to completely unlatch
the clip. Move the lamp outboard to loosen
the tabs.3. Remove the lamp from the grille.
4. Squeeze the tab on the side of the bulb
socket while turning it counterclockwise.
5. Remove the bulb socket from the back of the
lamp assembly.
6. Replace the bulb.
7. Turn the bulb socket clockwise to reinstall it in
the lamp assembly.
Center High-Mounted
Stoplamp (CHMSL)
The center high-mounted stoplamp (CHMSL) is
located above the rear doors at the center of
the vehicle.
336
Page 337 of 452
To replace a bulb, do the following:
1. Remove the two screws from the CHMSL
assembly.
2. Remove the assembly.
3. Turn the bulb counterclockwise one quarter
turn to remove it from the socket.
4. Install a new bulb.
5. Reverse the steps to reinstall the assembly.
If items are loaded on the roof of the vehicle, as in
a luggage carrier, care should be taken not to
block or damage the center high-mounted
stoplamp unit.Taillamps
To replace one of these bulbs, do the following:
1. Remove the
two inboard nuts
from the inside
of the taillamp
assembly.
2. Pull the taillamp assembly rearward to clear
the studs.
3. Slide the taillamp assembly slightly upward to
release the lower clip.
4. Remove the three nuts on the taillamp
assembly.
5. Remove the taillamp assembly from the
vehicle.
337
Page 338 of 452
6. Remove the bulb socket by squeezing the tab
on the side of the socket while turning it
counterclockwise.
7. Turn the bulb counterclockwise to remove it.
8. Install a new bulb.
9. Reverse the steps to reinstall the taillamp
assembly.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up, Rear Parking,
Stoplamp, and Turn Signal Lamp3157
CHMSL 912
Front Parking and Turn
Signal Lamp3157KX
Front Sidemarker Lamp 194
Headlamps
Composite High-Beam 9005
Composite Low-Beam 9006GS
Sealed Beam Headlamp H6054
For replacement bulbs not listed here, contact
your dealer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for
wear and cracking. SeeScheduled Maintenance
(Gasoline Engine) on page 399for more
information on wiper blade inspection.
338
Page 339 of 452

Replacement blades come in different types and
are removed in different ways. To remove the type
with a release clip, do the following:
1. Lift the wiper arm until it locks into a vertical
position.
2. Press down on the blade assembly pivot
locking tab. Pull down on the blade assembly to
release it from the wiper arm hook.3. The insert has two notches at one end that
are locked by bottom claws of the blade
assembly. At the notched end, pull the insert
from the blade assembly.
4. To install the new wiper insert, slide the
notched end last, into the end with two blade
claws. Then slide the insert all the way through
the blade claws at the opposite end.
5. Make sure that the notches are locked by the
bottom claws. Make sure that all other claws
are properly locked on both sides of the
insert slot.
6. Put the blade assembly pivot in the wiper arm
hook. Pull it up until the pivot locking tab locks
in the hook slot.
7. Carefully lower the wiper arm and blade
assembly into the windshield.
339
Page 355 of 452

Different Size Tires and Wheels
If you add wheels or tires that are a different size
than your original equipment wheels and tires, this
may affect the way your vehicle performs, including
its braking, ride and handling characteristics,
stability, and resistance to rollover. Additionally,
if your vehicle has electronic systems such as,
anti-lock brakes, traction control, and electronic
stability control, the performance of these systems
can be affected.
{CAUTION:
If you add different sized wheels, your
vehicle may not provide an acceptable
level of performance and safety if tires
not recommended for those wheels are
CAUTION: (Continued)
CAUTION: (Continued)
selected. You may increase the chance
that you will crash and suffer serious
injury. Only use GM speci c wheel and
tire systems developed for your vehicle,
and have them properly installed by a
GM certi ed technician.
SeeBuying New Tires on page 353and
Accessories and Modi cations on page 286for
additional information.
355
Page 361 of 452
{CAUTION:
Changing a tire can be dangerous. The
vehicle can slip off the jack and roll over
or fall on you or other people. You and
they could be badly injured or even killed.
Find a level place to change your tire. To
help prevent the vehicle from moving:
1. Set the parking brake rmly.
2. Put the shift lever in PARK (P).
3. Turn off the engine and do not restart
while the vehicle is raised.
4. Do not allow passengers to remain in
the vehicle.
To be even more certain the vehicle will
not move, you should put blocks at the
front and rear of the tire farthest away
from the one being changed. That would
be the tire, on the other side, at the
opposite end of the vehicle.When your vehicle has a flat tire, use the following
example as a guide to assist you in the placement
of wheel blocks.
The following information will tell you next how to
use the jack and change a tire.
361
Page 364 of 452
3. Turn the ratchet counterclockwise to lower the
spare tire to the ground. If the spare tire does
not lower to the ground, the secondary
latch is engaged causing the tire not to lower.
SeeSecondary Latch System on page 371.4. When the tire has been lowered, pull the tire
toward you so you can reach the tire retainer
and pull it up through the wheel opening.
If you have a vehicle which was completed from a
cab and chassis, refer to the information from
the body supplier/installer.
The spare tire is a full-size tire, like the other tires
on your vehicle.
364
Page 365 of 452
Removing the Flat Tire and
Installing the Spare Tire
If your vehicle has plastic wheel nut caps,
loosen them by turning the wheel wrench
counterclockwise. The wheel nut caps are
designed to remain with the center cap. Remove
the center cap.
If the wheel has a smooth center piece, place the
chisel end of the wheel wrench in the slot on
the wheel and gently pry it out.
1. With the DOWN side facing you, use the
ratchet and wheel wrench to loosen all the
wheel nuts. Do not remove them yet.2. Assemble the jack and tools for a front or rear
flat as follows:
Front Flat:Assemble the jack (A) together
with the jack handle (B) and ratchet (C)
as shown. Be sure that the ratchet has the
UP mark facing you.
Front Position
365