Page 374 of 450

Black plate (88,1)Buick Lucerne Owner Manual - 2011
Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place, well off the road,
if possible. Turn on the hazard warning flashers. See
Hazard Warning Flashers on page 4‑3.
{WARNING:
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 firmly.
2. Put the shift lever in P (Park).
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 the vehicle has a flat tire (B), use the following
example as a guide to assist you in the placement of
wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains how to use the jack
and change a tire.
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Black plate (89,1)Buick Lucerne Owner Manual - 2011
Removing the Spare Tire and Tools
The equipment you will need is located in the trunk.1. Open the trunk. See Trunk on page 3‑12.
2. Turn the center retainer
counterclockwise to
remove it.
3. Lift and remove the compact spare tire cover.
4. Turn the retainer that secures the jack and wheel wrench counterclockwise and remove the washer.
5. Remove the jack container with the jack and the wheel wrench.
6. Remove the spare tire from the vehicle. See Compact Spare Tire on page 6‑97.
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Black plate (90,1)Buick Lucerne Owner Manual - 2011
The tools you will be using include the jack (A) and the
wheel wrench (B).
Removing the Flat Tire and Installing
the Spare Tire
1. Do a safety check before proceeding. SeeChanging a Flat Tire on page 6‑88.
2. Turn the wheel wrench counterclockwise to loosenall the wheel nuts, but do not remove them yet.
3. Turn the jack handle counterclockwise to lower the jack lift head until it fits under the vehicle.
Turn the jack handle clockwise to raise the jack
lift head.
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Black plate (92,1)Buick Lucerne Owner Manual - 2011
5. Position the jack and raise the jack head until it fitsfirmly on the ridge in the vehicle's frame nearest
the flat tire. Do not raise the vehicle yet.
6. Put the compact spare tire near the flat tire.
{WARNING:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under a
vehicle when it is supported only by a jack.
7. Turn the jack handle clockwise to raise the vehicle. Raise the vehicle far enough off the ground for the
compact spare tire to fit under the vehicle.
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Black plate (94,1)Buick Lucerne Owner Manual - 2011
10. Install the compact spare tire.
{WARNING:
Never use oil or grease on bolts or nuts because
the nuts might come loose. The vehicle's wheel
could fall off, causing a crash.
11. Put the wheel nuts back on with the rounded end of the nuts toward the wheel. Turn each nut
clockwise by hand until the wheel is held against
the hub.
12. Lower the vehicle by turning the jack handle counterclockwise. Lower the jack completely.
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Black plate (95,1)Buick Lucerne Owner Manual - 2011
{WARNING:
Wheel nuts that are improperly or incorrectly
tightened can cause the wheels to become
loose or come off. The wheel nuts should be
tightened with a torque wrench to the proper
torque specification after replacing. Follow the
torque specification supplied by the aftermarket
manufacturer when using accessory locking wheel
nuts. SeeCapacities and Specifications
on
page 6‑116
for original equipment wheel nut
torque specifications.
Notice: Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the
wheel nuts in the proper sequence and to the
proper torque specification. See Capacities and
Specifications
on page 6‑116for the wheel nut
torque specification.
13. Tighten the wheel nuts
firmly in a crisscross
sequence as shown.
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Black plate (107,1)Buick Lucerne Owner Manual - 2011
Service Parts Identification Label
This label, on the spare tire cover, has the following
information:
.Vehicle Identification Number (VIN).
.Model designation.
.Paint information.
.Production options and special equipment.
Do not remove this label from the vehicle.
Electrical System
Add-On Electrical Equipment
Notice: Do not add anything electrical to the vehicle
unless you check with your dealer first. Some
electrical equipment can damage the vehicle and
the damage would not be covered by the vehicle's
warranty. Some add-on electrical equipment can
keep other components from working as they
should. Add-on equipment can drain the vehicle battery, even if
the vehicle is not operating.
The vehicle has an airbag system. Before attempting to
add anything electrical to the vehicle, see
Servicing
Your Airbag-Equipped Vehicle
on page 2‑68and
Adding Equipment to Your Airbag-Equipped Vehicleon
page 2‑69.
Power Windows and Other Power
Options
Circuit breakers in the rear fuse block protect the power
windows and other power accessories. When the
current load is too heavy, the circuit breaker opens and
closes, protecting the circuit until the problem is fixed or
goes away.
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Black plate (108,1)Buick Lucerne Owner Manual - 2011
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of fires
caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
You will find a fuse puller clipped in both of the fuse
blocks. Snap the wide end of the fuse puller at the side
indentations and pull the fuse out.The MaxiFuses are located in two fuse blocks, one
located in the engine compartment on the passenger's
side and the other under the rear seat on the driver's
side. If a MaxiFuse should blow, have your vehicle
serviced by your dealer immediately.
Underhood Fuse Block
The underhood fuse block is located on the passenger
side of the engine compartment. Remove the fuse cover
and secondary service cover to access the fuse block.
Notice:
Spilling liquid on any electrical component
on the vehicle may damage it. Always keep the
covers on any electrical component.
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