2007 CHEVROLET COBALT lock

7. Locate the vertical headlamp aiming screws,
which are under the hood near each headlamp
assembly.
The adjustment screw can be turned with
a 6 mm socket wrench.8. Turn the vertical aiming screw until the
headlamp beam is aimed to the horizontal tape
line. Turn it clockwise or counterclockwise to
raise or lower the angle of the beam.
9. Make sure that the light from the headlamp is
positioned at the bottom edge of the horizontal
tape line. The lamp on the left (A) shows
the correct headlamp aim. The lamp on the
right (B) shows the incorrect headlamp aim.
10. Repeat Steps 7 through 9 for the opposite
headlamp.
330

To replace one of these bulbs:
1. Open the hood. SeeHood Release on
page 289for more information.
2. Remove the two hex bolts from the headlamp
assembly.
3. Remove the two plastic fasteners from the
fascia.
4. Pull the front fascia back.
You may need someone else to assist you
with Steps 3 and 4.5. Pull the headlamp assembly up on an angle
and towards the radiator to remove it.
6. Disconnect the bulb base from the wiring
harness by lifting the plastic locking tab.
7. To replace a headlamp bulb, do the following:
7.1. Disconnect the wiring harness from the
bulb socket.
7.2. Remove the black retainer by turning it
counterclockwise.
8. Turn the bulb socket for the headlamp, front
turn signal, or parking lamp counterclockwise.
For the sidemarker bulb, you will need to
use a tool to assist in turning the bulb socket.
9. Pull the old bulb out of the socket.
10. Install a new bulb.
11. Reinstall the bulb assembly by reversing
Steps 1 through 8.
When reinstalling the headlamp assembly,
rst make sure that the wiring harness is
in its original position. If not, the headlamp
assembly will not t correctly.
You will also need to line up the two tabs
on the bottom of the assembly that t into
two slots in the headlamp assembly bracket.
332

Taillamps and Turn Signal
Lamps (Coupe)
To replace this bulb:
1. Open the trunk. SeeTrunk on page 102for
more information.
2. Remove the fastener which holds down the
trunk trim.
3. Disconnect the wiring harness by lifting up on
the tab to release and pull it straight out.
4. Remove the taillamp bulb socket from the
assembly by turning it counterclockwise.5. Pull the old bulb out of the socket.
6. Install a new bulb.
7. Reverse Steps 1 through 4 to reinstall the
taillamp assembly.
Taillamps, Turn Signal, Stoplamps
and Back-up Lamps (Sedan)
To replace one of these bulbs:
1. Open the trunk. SeeTrunk on page 102for
more information.
2. Remove the fastener which holds down the
trunk trim. Once you have removed the trim,
there will be one more fastener to remove.
3. Remove the outer two screws from the
taillamp assembly.
4. Disconnect the wiring harness by lifting up on
the tab to release and pull it straight out.
5. Remove the taillamp from the quarter panel.
334

A. Sidemarker
B. Stoplamp/Turn Signal/Taillamp
C. Back-up
6. Locate the bulb you need to change.
7. Remove the taillamp bulb socket from the
assembly by turning it counterclockwise.
8. Pull the old bulb out of the socket.
9. Install a new bulb.
10. Reverse Steps 1 through 6 to reinstall the
taillamp assembly.
Back-Up Lamps (Coupe)
To replace a back-up lamp bulb:
1. Open the trunk. SeeTrunk on page 102for
more information.
2. Locate the back-up lamp bulb assembly in the
trunk lid.
335

3. Remove the bulb socket by turning it
counterclockwise.
On vehicles that have a back-up lamp cover,
rst remove it by depressing the tab at the top.
4. Pull out the old bulb.
5. Install a new bulb.
6. Reinstall the bulb socket by aligning the tabs
and turning it clockwise to secure.
License Plate Lamp
To replace one of these bulbs:
1. Remove the two screws holding each of the
license plate lamps.
2. Turn and pull the license plate lamp toward
you through the opening.
3. Turn the bulb socket counterclockwise and
pull the bulb straight out of the socket.
4. Install the new bulb.
5. Reverse Steps 1 through 3 to reinstall the
license plate lamp.
336

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
selected. You may increase the chance
that you will crash and suffer serious
injury. Only use GM specic wheel and
tire systems developed for your vehicle,
and have them properly installed by a
GM certied technician.
SeeBuying New Tires on page 351and
Accessories and Modications on page 280for
additional information.
353

{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 an automatic transaxle shift lever
in PARK (P), or shift a manual
transaxle to FIRST (1) or REVERSE (R).
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 you have a at tire, use the following
example as a guide to assist you in the placement
of wheel blocks.
The following information will tell you how to use
the jack and change a tire.
359

The tools you will be using include the jack (A)
and wheel wrench (B).You will need to turn the plastic wheel nut
counterclockwise to loosen the wheel wrench
from the jack.
363