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2. Remove the rear cargo areatrim panel push pin.
3. Pull the rear cargo area trim panel back to gain access to
the taillamp assembly.4. Remove the two nuts thatsecure the taillamp assembly.
5. Remove the taillamp assembly and disconnect the wiring
harness connector.
6. Turn the bulb socket counterclockwise to remove it.
7. Pull the bulb from the socket.
8. Install a new bulb.
9. Turn the bulb socket clockwise to install it.
10. Reverse Steps 2–4 to reinstall the taillamp assembly.
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.

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298 Vehicle Care
4. Remove the plug from thesealant canister inlet valve (2)
and from the sealant
canister (1).
Screw the sealant canister (1)
onto the sealant canister inlet
valve (2) without removing the
tinfoil from the canister.
5. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.6. Remove the protective cap and
attach the sealant/air hose (6)
to the tire valve stem by turning
it clockwise until tight.
7. Plug the power plug (5) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See Power Outlets 0120.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter. Do not pinch the power plug
cord in the door or window.
8. Start the vehicle. The vehicle must be running while using
the air compressor.
9. Press the on/off button (7) to turn the tire sealant and
compressor kit on.
The compressor will inject
sealant and air into the tire.
The pressure gauge (3) will
initially show a high pressure
while the compressor pushes
the sealant into the tire. Once
the sealant is completely
dispersed into the tire, the
pressure will quickly drop and
start to rise again as the tire
inflates with air only.
10. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (3). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0281.

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
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Vehicle Care 299
The pressure gauge (3) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 10 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. SeeRoadside
Assistance Program 0350.
11. Press the on/off button (7) to turn the tire sealant and
compressor kit off. The tire is not sealed and will
continue to leak air until the
vehicle is driven and the
sealant is distributed in the tire.
Therefore, Steps 12–14 must
be done immediately after
Step 11.
Be careful while handling the
tire sealant and compressor kit
as it could be warm after
usage.
12. Unplug the power plug (5) from the accessory power outlet in
the vehicle.
13. Turn the sealant/air hose (6) counterclockwise to remove it
from the tire valve stem.
14. Replace the tire valve stem cap.
15. Immediately drive the vehicle 8 km (5 mi) but not longer than
10 minutes to distribute the
sealant in the tire.
16. Stop at a safe location and check the tire pressure. Refer
to Steps 1–10 under “Using theTire Sealant and Compressor
Kit without Sealant to Inflate a
Tire (Not Punctured).”
If the tire pressure has fallen
more than 68 kPa (10 psi)
below the recommended
inflation pressure, stop driving
the vehicle. The tire is too
severely damaged and the tire
sealant cannot seal the tire.
See
Roadside Assistance
Program 0350.
If the tire pressure has not
dropped more than 68 kPa
(10 psi) from the recommended
inflation pressure, inflate the
tire to the recommended
inflation pressure by using the
compressor to increase the
pressure or turn the air release
valve counterclockwise at the
air filler hose to decrease the
pressure.

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Vehicle Care 301
Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.
4. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the sealant/air hose (6) to the tire valve stem by turning
it clockwise until tight.
6. Plug the power plug (5) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See Power Outlets 0120.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using
the air compressor. 8. Press the on/off button (7) to
turn the tire sealant and
compressor kit on.
The compressor will inflate the
tire with air only.
9. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (3). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0281.
The pressure gauge (3) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 10 minutes, the (Continued)
Caution (Continued)
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. SeeRoadside
Assistance Program 0350.
10. Press the on/off button (7) to turn the tire sealant and
compressor kit off.
Be careful while handling the
compressor as it could be
warm after usage.
11. Unplug the power plug (5) from the accessory power outlet in
the vehicle.
12. Turn the sealant/air hose (6) counterclockwise to remove it
from the tire valve stem.
13. Replace the tire valve stem cap.

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304 Vehicle Care
orStoring the Tire Sealant and
Compressor Kit (Without
Subwoofer) 0309.
2. Remove the air only hose (11) and the power plug (10) from
the bottom of the compressor.
3. Place the compressor on the ground near the flat tire.
4. Attach the air only hose (11) tothe sealant canister inlet
valve (4) by turning it clockwise
until tight.
5. Slide the base of the tiresealant canister (3) into the slot
on the top of the compressor
(9) to hold it upright.
Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.
6. Remove the valve stem cap from the flat tire by turning it
counterclockwise.7. Attach the sealant/air hose (2)
to the tire valve stem by turning
it clockwise until tight.
8. Plug the power plug (10) into the accessory power outlet in
the vehicle. Unplug all items
from other accessory power
outlets. See Power Outlets
0 120.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter.

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
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Vehicle Care 305
Do not pinch the power plug
cord in the door or window.
9. Start the vehicle. The vehicle must be running while using
the air compressor.
10. Press the on/off button (8) to turn the tire sealant and
compressor kit on.
The compressor will inject
sealant and air into the tire.
The pressure gauge (5) will
initially show a high pressure
while the compressor pushes
the sealant into the tire. Once
the sealant is completely
dispersed into the tire, the
pressure will quickly drop and
start to rise again as the tire
inflates with air only.
11. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (5). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0281. The pressure gauge (5) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 25 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. See
Roadside
Assistance Program 0350.
12. Press the on/off button (8) to turn the tire sealant and
compressor kit off. The tire is not sealed and will
continue to leak air until the
vehicle is driven and the
sealant is distributed in the tire.
Therefore, Steps 13–21 must
be done immediately after
Step 12.
Be careful while handling the
tire sealant and compressor kit
as it could be warm after
usage.
13. Unplug the power plug (10) from the accessory power
outlet in the vehicle.
14. Turn the sealant/air hose (2) counterclockwise to remove it
from the tire valve stem.
15. Replace the tire valve stem cap.
16. Remove the tire sealant canister (1) from the slot on top
of the compressor (9).
17. Turn the air only hose (11) counterclockwise to remove it
from the tire sealant canister
inlet valve (4).

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
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306 Vehicle Care
18. Turn the sealant/air hose (2)clockwise onto the sealant
canister inlet valve (4) to
prevent sealant leakage.
19. Return the air only hose (11) and power plug (10) back to
their original storage location.
20. If the flat tire was able to inflate
to the recommended inflation
pressure, remove the
maximum speed label from the
sealant canister and place it in
a highly visible location.
Do not exceed the speed on
this label until the damaged tire
is repaired or replaced.
21. Return the equipment to its original storage location in the
vehicle. 22. Immediately drive the vehicle
8 km (5 mi) to distribute the
sealant in the tire.
23. Stop at a safe location and check the tire pressure. Refer
to Steps 1–10 under “Using the
Tire Sealant and Compressor
Kit without Sealant to Inflate a
Tire (Not Punctured).”
If the tire pressure has fallen
more than 68 kPa (10 psi)
below the recommended
inflation pressure, stop driving
the vehicle. The tire is too
severely damaged and the tire
sealant cannot seal the tire.
See Roadside Assistance
Program 0350.
If the tire pressure has not
dropped more than 68 kPa
(10 psi) from the recommended
inflation pressure, inflate the
tire to the recommended
inflation pressure. 24. Wipe off any sealant from the
wheel, tire, or vehicle.
25. Dispose of the used tire sealant canister (1) at a local
dealer or in accordance with
local state codes and practices.
26. Replace it with a new canister available from your dealer.
27. After temporarily sealing a tire using the tire sealant and
compressor kit, take the
vehicle to an authorized dealer
within 161 km (100 mi) of
driving to have the tire repaired
or replaced.

Buick Regal Owner Manual (GMNA-Localizing-2nd Timed Print-U.S./Canada-
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Vehicle Care 307
Using the Tire Sealant and
Compressor Kit without
Sealant to Inflate a Tire (Not
Punctured)
The kit includes:
1. Tire Sealant Canister
2. Sealant/Air Hose
3. Base of Sealant Canister
4. Sealant Canister Inlet Valve
5. Pressure Gauge
6. Pressure Deflation Button
7. Compressor
8. On/Off Button
9. Slot on Top of Compressor
10. Power Plug
11. Air Only Hose
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the hazard
warning flashers. SeeHazard
Warning Flashers 0162.
See If a Tire Goes Flat 0294 for
other important safety warnings.
1. Remove the compressor from its storage location.
See Storing the Tire Sealant
and Compressor Kit (With
Subwoofer) 0308 orStoring
the Tire Sealant and
Compressor Kit (Without
Subwoofer) 0309. 2. Remove the air only hose (11)
and the power plug (10) from
the bottom of the compressor.
3. Place the compressor on the ground near the flat tire.
Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.
4. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the air only hose (11) to the tire valve stem by turning it
clockwise until tight.
6. Plug the power plug (10) into the accessory power outlet in
the vehicle. Unplug all items
from other accessory power
outlets. See Power Outlets
0 120.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter.