2006 BUICK LACROSSE lock

5. Remove the two wing nuts holding the taillamp
assembly in place.
6. Pull out the taillamp assembly and disconnect the
wiring harness.A. Taillamp
B. Back-up
C. TaillampD. Stoplamp/Taillamp/
Turn Signal
E. Sidemarker
7. Turn the bulb socket counterclockwise to remove it.
8. Replace with a new bulb.
9. Turn the bulb socket clockwise to reinstall.
10. Reverse these steps to reinstall the taillamp
assembly.
5-55

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 5-66andAccessories
and Modications on page 5-3for additional information.
Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway Traffic
Safety Administration (NHTSA), which grades tires by
treadwear, traction, and temperature performance.
This applies only to vehicles sold in the United States.
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
(UTQG) system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
5-68

Get the vehicle under control by steering the way you
want the vehicle to go. It may be very bumpy and noisy,
but you can still steer. Gently brake to a stop, well off
the road if possible.
{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without
the appropriate safety equipment and training.
The jack provided with your vehicle is designed
only for changing a at tire. If it is used for
anything else, you or others could be badly
injured or killed if the vehicle slips off the jack.
Use the jack provided with your vehicle only for
changing a at tire.
If a tire goes at, the next part shows how to use the
jacking equipment to change a at tire safely.
Changing a Flat Tire
If a tire goes at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your vehicle’s
hazard warning ashers. SeeHazard Warning Flashers
on page 3-6for more information.
{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.
5-73

When your vehicle has 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 next how to use
the jack and change a tire.Removing the Spare Tire and Tools
The equipment you will need is located in the trunk.
1. Open the trunk. SeeTrunk on page 2-13for more
information.
2. Remove the convenience net if the vehicle has one.
3. Lift the handle on the spare tire cover. The handle
may hook on the front edge of the trunk’s
weatherstrip to hold the cover out of the way.
5-74

4. Turn the wing nut counterclockwise and remove it.
5. Remove the compact spare tire.6. Turn the nut holding the jack counterclockwise and
remove it. Then remove the jack and wrench.
5-75

2. Use the wheel wrench to loosen the plastic wheel
nut caps, if equipped, in a counterclockwise
direction.
If needed, nish loosening them by hand. The nut
caps will not come off of the wheel cover.
3. Use the at end of the wheel wrench and pry along
the edge of the cover until it comes off. Pull off the
wheel cover and set it aside.
The edge of the wheel cover could be sharp, so do
not try to remove the cover with your bare hands.
Do not drop the cap or lay it face down, as it could
become scratched or damaged.
If the vehicle has aluminum wheels and wheel center
caps, the wheel nuts are hidden behind the center cap.
Pry off the center cap by using the at end of the
wheel wrench at the notch.
Do not drop the cap or lay it facedown, as it could
become scratched or damaged.Once you have removed the wheel cover or center
cap, use the following procedure to remove the at tire
and install the spare tire.
1. Place the wheel wrench securely over the wheel
nut. Turn the wheel wrench counterclockwise
to loosen all the wheel nuts, but do no remove
them yet.
2. Turn the jack handle clockwise to raise the jack
lift head.
5-77

5. Raise the vehicle by turning the jack handle
clockwise. Raise the vehicle far enough off the
ground for the compact spare tire to t under
the vehicle.6. Remove all wheel
nuts and take off
the at tire.
5-79

{CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after a time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
the places where the wheel attaches to the
vehicle. In an emergency, you can use a cloth
or a paper towel to do this; but be sure to use
a scraper or wire brush later, if needed, to get
all the rust or dirt off.
7. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.
8. Install the compact spare tire.
{CAUTION:
Never use oil or grease on studs or nuts. If you
do, the nuts might come loose. Your wheel
could fall off, causing a serious accident.
9. Put the wheel nuts back on with the rounded end
of the nuts toward the wheel. Tighten each nut by
hand until the wheel is held against the hub.
10. Lower the vehicle by turning the jack handle
counterclockwise. Lower the jack completely.
5-80