
Black plate (83,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-83
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.
{WARNING
Wheel nuts that are improperly or
incorrectly tightened can cause
the wheels to become loose or
(Continued)
WARNING (Continued)
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 12‑2 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 12‑2 for the wheel nut
torque specification.
13. Tighten the wheel nuts firmly
in a crisscross sequence, as
shown.
14. Lower the jack all the way and remove the jack from under the
vehicle.
15. Tighten the wheel nuts firmly with the wheel wrench.
Notice: Wheel covers will not fit
on the vehicle's compact spare.
If you try to put a wheel cover on
the compact spare, the cover or
the spare could be damaged.

Black plate (85,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-85
Compact Spare Tire
{WARNING
Driving with more than one
compact spare tire at a time
could result in loss of braking
and handling. This could lead
to a crash and you or others
could be injured. Use only one
compact spare tire at a time.
If this vehicle has a compact spare
tire, it was fully inflated when the
vehicle was new; however, it can
lose air after a time. Check the
inflation pressure regularly. It should
be 420 kPa (60 psi). After installing the compact spare
on the vehicle, stop as soon
as possible and make sure the
spare tire is correctly inflated.
The compact spare is made to
perform well at speeds up to
105 km/h (65 mph) for distances
up to 5 000 km (3,000 mi), so you
can finish your trip and have the
full-size tire repaired or replaced
at your convenience. Of course,
it is best to replace the spare with
a full-size tire as soon as possible.
The spare tire will last longer and be
in good shape in case it is needed
again.
Notice:
When the compact
spare is installed, do not take
the vehicle through an automatic
car wash with guide rails. The
compact spare can get caught on
the rails which can damage the
tire, wheel and other parts of the
vehicle. Do not use the compact spare on
other vehicles.
Do not mix the compact spare tire
or wheel with other wheels or tires.
They will not fit. Keep the spare tire
and its wheel together.
Notice:
Tire chains will not fit
the compact spare. Using them
can damage the vehicle and can
damage the chains too. Do not
use tire chains on the compact
spare.

Black plate (89,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-89
To disconnect the jumper cables
from both vehicles:
1. Disconnect the blacknegative (−) cable from the
vehicle that had the dead
battery.
2. Disconnect the black negative (−) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the vehicle with the
good battery.
4. Disconnect the red positive (+) cable from the other vehicle.
5. Return the caps over the positive (+) and negative (–)
terminals to their original
positions.Towing
Towing the Vehicle
Notice: To avoid damage,
the disabled vehicle should
be towed with all four wheels
off the ground. Care must be
taken with vehicles that have
low ground clearance and/or
special equipment. Always
flatbed on a car carrier.
Consult your dealer or a
professional towing service if the
disabled vehicle must be towed.
See Roadside Assistance Program
(U.S. and Canada) on page 13‑8
or Roadside Assistance Program
(Mexico) on page 13‑10.
To tow the vehicle behind another
vehicle for recreational purposes,
such as behind a motor home, see
“Recreational Vehicle Towing” in this
section.
Recreational Vehicle
Towing
Recreational vehicle towing means
towing the vehicle behind another
vehicle such as a motor home.
The two most common types of
recreational vehicle towing are
known as dinghy towing and dolly
towing. Dinghy towing is towing the
vehicle with all four wheels on the
ground. Dolly towing is towing the
vehicle with two wheels on the
ground and two wheels up on
a device known as a dolly.
Here are some important things to
consider before recreational vehicle
towing:
.What is the towing capacity
of the towing vehicle?
Be sure to read the tow
vehicle manufacturer's
recommendations.

Black plate (90,1)Buick LaCrosse Owner Manual - 2011
10-90 Vehicle Care
.What is the distance that will be
travelled? Some vehicles have
restrictions on how far and how
long they can tow.
.Is the proper towing equipment
going to be used? See your
dealer or trailering professional
for additional advice and
equipment recommendations.
.Is the vehicle ready to be
towed? Just as preparing the
vehicle for a long trip, make
sure the vehicle is prepared
to be towed.
Dinghy Towing from the Front
When dinghy towing, the vehicle
should be run at the beginning of
each day and at each RV fuel stop
for about five minutes. This will
ensure proper lubrication of
transmission components.
Use the following procedure to
dinghy tow the vehicle from the front
with all four wheels on the ground:
1. Position the vehicle being towedbehind the tow vehicle and shift
the transmission to P (Park).
2. Turn the engine off and firmly set the parking brake. 3. Following the manufacturer's
instructions, securely attach the
vehicle being towed to the tow
vehicle.
4. Turn the ignition to ACC/ ACCESSORY and shift the
transmission to N (Neutral).
5. Release the parking brake only after the vehicle being towed is
firmly attached to the towing
vehicle.
When towing the vehicle for
extended periods of time, start
the vehicle as often as possible to
prevent battery drain. This should
be done when the tow vehicle is
parked.

Black plate (91,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-91
Dinghy Towing from the Rear
The vehicle was not designed to be
towed from the rear with all four
wheels on the ground.
Dolly Towing from the Front
(Front-Wheel Drive)
Vehicles with front-wheel drive can
be dolly towed from the front.
Use the following procedure to dolly
tow the vehicle from the front:
1. Attach the dolly to the towvehicle following the dolly
manufacturer's instructions. 2. Drive the front wheels onto the
dolly.
3. Shift the transmission to P (Park).
4. Firmly set the parking brake.
5. Use an adequate clamping device designed for towing to
ensure that the front wheels are
locked into the straight-ahead
position.
6. Secure the vehicle to the dolly following the manufacturer's
instructions.
7. Release the parking brake only after the vehicle being towed is
firmly attached to the towing
vehicle.
8. Turn the ignition to LOCK/OFF.

Black plate (92,1)Buick LaCrosse Owner Manual - 2011
10-92 Vehicle Care
Dolly Towing from the Front
(All-Wheel Drive)
Vehicles with all-wheel drive cannot
be dolly towed.
Dolly Towing from the Rear
The vehicle cannot be dolly towed
from the rear.
Appearance Care
Exterior Care
Cleaning Exterior
Lamps/Lenses
Use only lukewarm or cold water, a
soft cloth, and a car washing soap
to clean exterior lamps and lenses.
Follow instructions under“Washing
the Vehicle” later in this section.
Finish Care
Occasional waxing or mild polishing
of the vehicle by hand may be
necessary to remove residue from
the paint finish. Approved cleaning
products can be obtained from your
dealer.

Black plate (95,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-95
Wheels and Trim—Aluminum
or Chrome
The vehicle may have either
aluminum or chrome-plated wheels.
Keep the wheels clean using a
soft, clean cloth with mild soap
and water. Rinse with clean water.
After rinsing thoroughly, dry with a
soft, clean towel. A wax may then
be applied.
Notice: Chrome wheels and
other chrome trim may be
damaged if the vehicle is not
washed after driving on roads
that have been sprayed with
magnesium, calcium or sodium
chloride. These chlorides are
used on roads for conditions
such as ice and dust. Always
wash the chrome with soap and
water after exposure.
Notice: Do not use strong soaps,
chemicals, abrasive polishes,
cleaners, brushes, or cleaners
that contain acid on aluminum or
chrome-plated wheels, because
the surface could be damaged. The repairs would not be covered
by the vehicle warranty. Use only
approved cleaners on aluminum
or chrome-plated wheels.
Notice:
Never drive a vehicle that
has aluminum or chrome-plated
wheels through an automatic car
wash that uses silicone carbide
tire cleaning brushes, as this
could cause damage. The repairs
would not be covered by the
vehicle warranty.
Notice: Driving the vehicle
through an automatic car wash
that has silicone carbide tire
cleaning brushes, could damage
the aluminum or chrome-plated
wheels. The repairs would not be
covered by the vehicle warranty.
Never drive a vehicle that has
aluminum or chrome-plated
wheels through an automatic
car wash that uses silicone
carbide tire cleaning brushes.
Windshield and Wiper Blades
Clean the outside of the windshield
with glass cleaner.
Clean the rubber blades using
a lint‐free cloth or paper towel
soaked with windshield washer
fluid or a mild detergent. Wash
the windshield thoroughly when
cleaning the blades. Bugs, road
grime, sap, and a buildup of vehicle
wash/wax treatments may cause
wiper streaking. Replace the wiper
blades if they are worn or damaged.
Wipers can be damaged by:
.Extreme dusty conditions
.Sand and salt
.Heat and sun
.Snow and ice, without proper
removal

Black plate (5,1)Buick LaCrosse Owner Manual - 2011
Service and Maintenance 11-5
.Hood/Decklid/Liftgate/Liftglass
Support Gas Strut Service:
Visually inspect gas strut,
if equipped, for signs of wear,
cracks, or other damage. Check
the hold open ability of the gas
strut. Contact your dealer if
service is required.
First Engine Oil Change After
Every 40 000 km/25,000 Miles
.Passenger compartment
air filter replacement (or every
24 months, whichever occurs
first). More frequent replacement
may be needed if you drive
in areas with heavy traffic,
areas with poor air quality,
or areas with high dust levels.
Replacement may also be
needed if you notice reduced
air flow, windows fogging up,
or odors. Your dealer can help
you determine when it is the
right time to replace the filter. First Engine Oil Change After
Every 80 000 km/50,000 Miles
.Engine air cleaner filter
replacement. See
Engine Air
Cleaner/Filter on page 10‑15.
.Automatic transmission fluid
change (severe service)
for vehicles mainly driven
in heavy city traffic in hot
weather, in hilly or mountainous
terrain, when frequently towing
a trailer, or used for taxi,
police, or delivery service.
See Automatic Transmission
Fluid on page 10‑15.
.All‐wheel drive only: Transfer
case fluid change (severe
service) for vehicles mainly
driven when frequently towing
a trailer, or used for taxi, police,
or delivery service. Check
vent hose at transfer case for
kinks and proper installation.
Check to be sure vent hose is
unobstructed, clear, and free of
debris. During any maintenance,
if a power washer is used to
clean mud and dirt from the
underbody, care should be taken
to not directly spray the transfer
case output seals. High pressure
water can overcome the seals
and contaminate the transfer
case fluid. Contaminated fluid
will decrease the life of the
transfer case and should be
replaced.