2010 BUICK LACROSSE traction control

8-36 Driving and Operating
This also occurs when traction
control is activated. A noise might
be heard or vibration might be felt in
the brake pedal. This is normal.
Continue to steer the vehicle in the
intended direction.
If there is a problem detected with
StabiliTrak, the TCS/StabiliTrak light
comes on and the system is not
operational. SeeElectronic Stability
Control (ESC)/Traction Control
System (TCS) Indicator/Warning
Light
on page 4‑22. Driving should
be adjusted accordingly.
StabiliTrak comes on automatically
whenever the vehicle is started. To
assist with directional control of the
vehicle, the system should always
be left on.
StabiliTrak can be turned off if
needed by pressing and holding
g
until the StabiliTrak Off light comes
on the instrument panel. For
information on turning TCS off and
on, see Traction Control System
(TCS) in this section.
If cruise control is being used when
StabiliTrak activates, the cruise
control automatically disengages.
Press the cruise control button to
reengage when road conditions
allow. See Cruise Control
on
page 8‑37for more information.
Selective Ride Control
The vehicle may have a ride control
system called Selective Ride
Control. The system provides the
following performance benefits:
.Reduced Impact Harshness
.Improved Road Isolation
.Improved High-Speed Stability
.Improved Handling Response
.Better Control of Body Ride
Motions
To switch from TOUR to SPORT
mode, move the shift lever to
the left while the transmission is
in D (Drive).

Driving and Operating 8-37
TOUR:Use for normal city and
highway driving. This setting
provides a smooth, soft ride.
SPORT: Use where road conditions
or personal preference demand
more control. This setting provides
more “feel”, or response to road
conditions through increased
steering effort and suspension
tuning.
The setting can be changed at any
time. Based on road conditions,
steering wheel angle and the
vehicle speed, the system
automatically adjusts to provide the
best handling while providing a
smooth ride. The Tour and Sport
modes will feel similar on a
smooth road.Cruise Control
With cruise control, the vehicle can
maintain a speed of about 40 km/h
(25 mph) or more without keeping
your foot on the accelerator. Cruise
control does not work at speeds
below 40 km/h (25 mph).
On vehicles with the Traction
Control System (TCS) or Electronic
Stability Control (ESC), the system
may begin to limit wheel spin while
you are using cruise control. If this
happens, the cruise control will
automatically disengage. See
Traction Control System (TCS)
on
page 8‑34or Electronic Stability
Control (ESC) on page 8‑35.
{WARNING
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. So, do not use
the cruise control on winding
roads or in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads.

Vehicle Care 9-3
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
remote keyless transmitters, may
contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non-dealer/non-retailer
accessories to the vehicle can affect
vehicle performance and safety,
including such things as airbags,
braking, stability, ride and handling,
emissions systems, aerodynamics,
durability, and electronic systems
like antilock brakes, traction control,
and stability control. Some of these
accessories could even cause
malfunction or damage not covered
by the vehicle warranty.
Damage to vehicle components
resulting from the installation or use
of non-GM certified parts, including
control module modifications, are
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.GM Accessories are designed to
complement and function with other
systems on the vehicle. Your GM
dealer/retailer can accessorize the
vehicle using genuine GM
Accessories. When you go to your
GM dealer/retailer and ask for GM
Accessories, you will know that
GM-trained and supported service
technicians will perform the work
using genuine GM Accessories.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle
on
page 2‑38.

Vehicle Care 9-61
The rubber in tires degrades over
time. This is also true for the spare
tire, if the vehicle has one, even if it
is not being used. Multiple
conditions affect how fast this aging
takes place, including temperatures,
loading conditions, and inflation
pressure maintenance. With proper
care and maintenance tires typically
wear out before they degrade due to
age. If you are unsure about the
need to replace the tires as they get
older, consult the tire manufacturer
for more information.Buying New Tires
GM has developed and matched
specific tires for your vehicle.
The original equipment tires
installed on your vehicle,
when it was new, were designed
to meet General Motors Tire
Performance Criteria
Specification (TPC Spec)
system rating. If you need
replacement tires, GM strongly
recommends that you get tires
with the same TPC Spec rating.
This way, your vehicle will
continue to have tires that are
designed to give the same
performance and vehicle safety,
during normal use, as the
original tires.GM's exclusive TPC Spec
system considers over a dozen
critical specifications that impact
the overall performance of your
vehicle, including brake system
performance, ride and handling,
traction control, and tire
pressure monitoring
performance. GM's TPC Spec
number is molded onto the tire's
sidewall near the tire size. If the
tires have an all-season tread
design, the TPC Spec number
will be followed by an MS for
mud and snow. See
Tire
Sidewall Labeling
on page 9‑47
for additional information.

Vehicle Care 9-63
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed on
your vehicle. Non-TPC Spec
rated tires may give a
low-pressure warning that is
higher or lower than the proper
warning level you would get with
TPC Spec rated tires. SeeTire
Pressure Monitor System
on
page 9‑54
.
Your vehicle's original
equipment tires are listed on the
Tire and Loading Information
Label. See Vehicle Load Limits
on page 8‑12, for more
information about the Tire and
Loading Information Label and
its location on your vehicle.
Different Size Tires and
Wheels
If you add wheels or tires that are a
different size than your original
equipment wheels and tires, this
could 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, rollover airbags, traction
control, and electronic stability
control, the performance of these
systems can be affected.
{WARNING
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
specific wheel and tire systems
developed for your vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires
on
page 9‑61and Accessories and
Modificationson page 9‑3for
additional information.

9-64 Vehicle Care
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 temporaryuse spare tires, tires with
nominal rim diameters of
25 to 30 cm (10 to 12 inches),
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.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
a half (1.5) times as well on the
government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the
norm due to variations in driving
habits, service practices, and
differences in road
characteristics and climate.
Traction
–AA, A, B, C
The traction grades, from
highest to lowest, are AA, A, B,
and C. Those grades represent
the tire's ability to stop on wet
pavement as measured under
controlled conditions on
specified government test
surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.

Vehicle Care 9-67
Used Replacement Wheels
{WARNING
Putting a used wheel on the
vehicle is dangerous. You cannot
know how it has been used or
how far it has been driven.
It could fail suddenly and cause a
crash. If you have to replace a
wheel, use a new GM original
equipment wheel.
Tire Chains
{WARNING
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension or other vehicle parts.
The area damaged by the tire
chains could cause you to lose
control of the vehicle and you or
others may be injured in a crash.
Use another type of traction
device only if its manufacturer
recommends it for use on the
vehicle and tire size combination
and road conditions. Follow that
manufacturer's instructions. To
help avoid damage to the vehicle,
drive slowly, readjust or remove
the device if it is contacting the
vehicle, and do not spin the(Continued)
WARNING (Continued)
vehicle's wheels. If you do find
traction devices that will fit, install
them on the front tires.
If a Tire Goes Flat
It is unusual for a tire to blowout
while you are driving, especially if
you maintain your vehicle's tires
properly. If air goes out of a tire, it is
much more likely to leak out slowly.
But if you should ever have a
blowout, here are a few tips about
what to expect and what to do:
If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop well out of the
traffic lane.

INDEX i-7
Lights (cont.)Flash-to-Pass . . . . . . . . . . . . . . . . . . 5-2
Fog Lamps . . . . . . . . . . . . . . . . . . . 4-24
High-Beam On . . . . . . . . . . . . . . . . 4-24
High/Low Beam Changer . . . . . . 5-2
Low Fuel Warning . . . . . . . . . . . . 4-24
Safety Belt Reminders . . . . . . . . 4-15
Security . . . . . . . . . . . . . . . . . . . . . . 4-24
Taillamp Indicator . . . . . . . . . . . . . 4-25
Tire Pressure . . . . . . . . . . . . . . . . . 4-23
Traction Off . . . . . . . . . . . . . . . . . . . 4-22
Locks Door . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Power Door . . . . . . . . . . . . . . . . . . . 1-10
Safety . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Loss of Control . . . . . . . . . . . . . . . . . 8-7
Low Fuel Warning Light . . . . . . . . 4-24
Lower Anchors and Tethers for Children (LATCH
SYSTEM) . . . . . . . . . . . . . . . . . . . . 2-48
Lumbar Adjustment . . . . . . . . . . . . . 2-5 Front Seats . . . . . . . . . . . . . . . . . . . . 2-5M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . 10-10
Maintenance Schedule Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 10-7
Scheduled Maintenance . . . . . . 10-2
Malfunction Indicator Lamp . . . . 4-17
Manual Mode . . . . . . . . . . . . . . . . . . 8-29
Mass Storage Media (MEM) . . . 6-25
Messages Anti-Theft Alarm System . . . . . . 4-37
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 4-33
Brake System . . . . . . . . . . . . . . . . 4-33
Compass . . . . . . . . . . . . . . . . . . . . . 4-33
Door Ajar . . . . . . . . . . . . . . . . . . . . . 4-34
Engine Cooling System . . . . . . . 4-34
Engine Oil . . . . . . . . . . . . . . . . . . . . 4-35
Engine Power . . . . . . . . . . . . . . . . 4-35
Fuel System . . . . . . . . . . . . . . . . . . 4-36 Messages (cont.)
Key and Lock . . . . . . . . . . . . . . . . . 4-36
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Ride Control System . . . . . . . . . . 4-36
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37
Transmission . . . . . . . . . . . . . . . . . 4-37
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 4-32
Window . . . . . . . . . . . . . . . . . . . . . . . 4-38
Mirrors
Folding . . . . . . . . . . . . . . . . . . . . . . . 1-15
Heated . . . . . . . . . . . . . . . . . . . . . . . 1-16
Manual Rearview . . . . . . . . . . . . . 1-16
Outlets . . . . . . . . . . . . . . . . . . . . . . . 4-10
Park Tilt . . . . . . . . . . . . . . . . . . . . . . 1-16
Power . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . 9-54
N
Navigation SystemVehicle Data Recordingand Privacy . . . . . . . . . . . . . . . 12-16
Net, Convenience . . . . . . . . . . . . . . 3-2
New Vehicle Break-In . . . . . . . . . . 8-17