CHEVROLET COBALT 2007 1.G Owners Manual

Bulb Replacement
For the proper type of replacement bulbs,
seeReplacement Bulbs on page 337.
For any bulb changing procedure not listed in
this section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas
inside and can burst if you drop or
scratch the bulb. You or others could be
injured. Be sure to read and follow the
instructions on the bulb package.
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
A. Front Turn Signal/Parking Lamp
B. Sidemarker
C. Headlamp
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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.
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Center High-Mounted
Stoplamp (CHMSL)
To replace a CHMSL bulb:
1. Open the trunk. SeeTrunk on page 102for
more information.
2. Locate the CHMSL bulb assembly in the
trunk lid.
3. Press the plastic tabs to release the bulb
assembly.
4. Pull the bulb assembly down to access
the bulbs.
5. Remove the bulb by pulling it straight out.
6. Install a new bulb.
7. Align the tabs in the bulb assembly with the
assembly in the trunk lid. Push the bulb
assembly back into place until it snaps in.
You may need to use a tool to guide the tabs
into the assembly.
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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.
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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.
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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.
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Replacement Bulbs
Exterior Lamps Bulb Number
Back-Up Lamps 921
Center High-Mounted
Stoplamp (CHMSL)912
Front Parking/Turn Signal Lamps 3157KX
Halogen Headlamps,
High/Low-Beam9007 LL
License Plate Lamp and
Sidemarker194
Stoplamp, Taillamp and
Turn Signal Lamps3057KX
For replacement bulbs not listed here, contact
your dealer/retailer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for
wear or cracking. SeeScheduled Maintenance
on page 396for more information on wiper blade
inspection.Replacement blades come in different types and
are removed in different ways. For proper type and
length, seeNormal Maintenance Replacement
Parts on page 408. Here is how to remove
the wiper blades:
1. Pull the windshield wiper arm away from the
windshield.
2. Push the release lever and slide the wiper
assembly toward the driver’s side of the
vehicle.
3. Install a new blade by reversing Steps 1 and 2.
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Tires
Your new vehicle comes with high-quality tires
made by a leading tire manufacturer. If you ever
have questions about your tire warranty and where
to obtain service, see your GM Warranty booklet
for details. For additional information refer to
the tire manufacturer’s booklet included with
your vehicle.
{CAUTION:
Poorly maintained and improperly
used tires are dangerous.
Overloading your tires can cause
overheating as a result of too much
friction. You could have an air-out and
a serious accident. SeeLoading Your
Vehicle on page 259.
CAUTION: (Continued)
CAUTION: (Continued)

Underinated tires pose the same
danger as overloaded tires. The
resulting accident could cause serious
injury. Check all tires frequently to
maintain the recommended pressure.
Tire pressure should be checked when
your tires are cold. SeeInflation - Tire
Pressure on page 347.
Overinated tires are more likely
to be cut, punctured, or broken by
a sudden impact — such as when
you hit a pothole. Keep tires at the
recommended pressure.
Worn, old tires can cause accidents. If
your tread is badly worn, or if your tires
have been damaged, replace them.
SeeHigh-Speed Operation on page 349
for ination pressure adjustment for high
speed driving.
338

Low-Prole Performance Tire
If your vehicle has 215/45R18 size tires, they
are classied as low-prole performance tires.
These tires are designed for very responsive
driving on wet or dry pavement. You may
also notice more road noise with low-prole
performance tires and that they tend to wear
faster.
Notice:If your vehicle has low-prole tires,
they are more susceptible to damage from road
hazards or curb impact than standard prole
tires. Tire and/or wheel assembly damage can
occur when coming into contact with road
hazards like, potholes, or sharp edged objects,
or when sliding into a curb. Your GM warranty
does not cover this type of damage. Keep tires
set to the correct ination pressure and, when
possible avoid contact with curbs, potholes,
and other road hazards.
Winter Tires
If your vehicle has 215/45R18 size tires, they are
classied as low-prole performance tires. These
tires are designed for very responsive driving on
wet or dry pavement. If you expect to drive on snow
or ice covered roads often, you may want to get
winter tires for your vehicle. All season tires provide
good overall performance on most surfaces but
they may not offer the traction you would like or the
same level of performance as winter tires on snow
or ice covered roads.
Winter tires, in general, are designed for increased
traction on snow and ice covered roads. With winter
tires, there may be decreased dry road traction,
increased road noise, and shorter tire tread life.
After switching to winter tires, be alert for changes
in vehicle handling and braking.
See your dealer for details regarding winter
tire availability and proper tire selection.
Also, seeBuying New Tires on page 351.
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If you choose to use winter tires:
Use tires of the same brand and tread type
on all four wheel positions.
Use only radial ply tires of the same size,
load range, and speed rating as your
original equipment tires.
Winter tires with the same speed rating as your
original equipment tires may not be available for H,
V, W, Y and ZR speed rated tires. If you choose
winter tires with a lower speed rating, never
exceed the tire’s maximum speed capability.
Tire Sidewall Labeling
Useful information about a tire is molded into its
sidewall. The examples below show a typical
passenger vehicle tire and a compact spare
tire sidewall.(A) Tire Size:The tire size is a combination of
letters and numbers used to dene a particular
tire’s width, height, aspect ratio, construction type
and service description. See the “Tire Size”
illustration later in this section for more detail.
Passenger (P-Metric) Tire Example
340