tire pressure BUICK LACROSSE 2010 Owner's Manual

Introduction v
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message, gage,
or indicator.
M: This symbol is shown when
you need to see your owner manual
for additional instructions or
information.
*: This symbol is shown when
you need to see a service manual
for additional instructions or
information. Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the index.
9:
Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls
or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gage
+:Fuses
i: Headlamp High/Low-Beam
Changer
j: LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
d:Traction Control
M:Windshield Washer Fluid

Instruments and Controls 4-1
Instruments and
Controls
Instrument Panel Overview
Instrument Panel Overview . . . . 4-4
Controls
Steering Wheel Adjustment . . . 4-6
Steering Wheel Controls . . . . . . 4-6
Heated Steering Wheel . . . . . . . 4-7
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Windshield Wiper/Washer . . . . . 4-7
Compass . . . . . . . . . . . . . . . . . . . . . 4-8
Clock (Without DateDisplay) . . . . . . . . . . . . . . . . . . . . . 4-9
Clock (With Date Display) . . . . . 4-9
Power Outlets . . . . . . . . . . . . . . . 4-10
Warning Lights, Gages, and
Indicators
Warning Lights, Gages, and Indicators . . . . . . . . . . . . . . 4-12
Instrument Cluster . . . . . . . . . . . 4-13
Speedometer . . . . . . . . . . . . . . . . 4-14
Odometer . . . . . . . . . . . . . . . . . . . . 4-14
Tachometer . . . . . . . . . . . . . . . . . . 4-14
Fuel Gage . . . . . . . . . . . . . . . . . . . 4-14
Engine Coolant Temperature Gage . . . . . . . . . 4-15
Safety Belt Reminders . . . . . . . 4-15
Airbag Readiness Light . . . . . . 4-16
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 4-16
Charging System Light . . . . . . 4-17
Malfunction Indicator Lamp . . . . . . . . . . . . . 4-17
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 4-20 Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . 4-20
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 4-21
Traction Off Light . . . . . . . . . . . . 4-22
Electronic Stability Control
(ESC) Indicator Light . . . . . . . 4-22
Electronic Stability Control (ESC)/Traction Control
System (TCS) Indicator/
Warning Light . . . . . . . . . . . . . . 4-22
Tire Pressure Light . . . . . . . . . . 4-23
Engine Oil Pressure Light . . . . 4-23
Low Fuel Warning Light . . . . . . 4-24
Security Light . . . . . . . . . . . . . . . . 4-24
High-Beam on Light . . . . . . . . . 4-24
Fog Lamp Light . . . . . . . . . . . . . . 4-24
Taillamp Indicator Light . . . . . . 4-25
Cruise Control Light . . . . . . . . . 4-25

Instruments and Controls 4-23
SeeTraction Control System (TCS)on page 8‑34andElectronic
Stability Control (ESC)on
page 8‑35for more information
Tire Pressure Light
For vehicles with a tire pressure
monitoring system, this light comes
on briefly when the engine is
started. It provides information
about tire pressures and the Tire
Pressure Monitoring System.
When the Light is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A tire pressure message in the
Driver Information Center (DIC), can
accompany the light. See Tire
Messages
on page 4‑37for more information. Stop and check the
tires as soon as it is safe to do so.
If underinflated, inflate to the proper
pressure. See
Tire Pressure
on
page 9‑53for more information.
When the Light Flashes First and
Then is On Steady
This indicates that there may be a
problem with the Tire Pressure
Monitor System. The light flashes
for about a minute and stays on
steady for the remainder of the
ignition cycle. This sequence
repeats with every ignition cycle.
See Tire Pressure Monitor
Operation
on page 9‑55for more
information.
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
(Continued)
WARNING (Continued)
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Notice: Lack of proper engine oil
maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule in this manual for
changing engine oil.
The oil pressure light should come
on briefly as the engine is started.
If it does not come on have the
vehicle serviced by your dealer/
retailer.

Instruments and Controls 4-27
Trip 1 and Trip 2
This display shows the current
distance traveled, in either
kilometers (km) or miles (mi), since
the last reset for the trip odometer.
The trip odometer can be reset to
zero by pressing SET while the trip
odometer display is showing.
Fuel Range
This display shows the approximate
distance the vehicle can be driven
without refueling. The fuel range
estimate is based on an average of
the vehicle's fuel economy over
recent driving history and the
amount of fuel remaining in the fuel
tank. Fuel range cannot be reset.
Average Fuel Economy
This display shows the approximate
average liters per 100 kilometers
(L/100 km) or miles per
gallon (mpg). This number is
calculated based on the number of
L/100 km (mpg) recorded since the
last time this menu item was reset.The fuel economy can be reset by
pressing SET while the Average
Fuel Economy display is showing.
Average Vehicle Speed
This display shows the average
speed of the vehicle in miles per
hour (mph) or kilometers per
hour (km/h). This average is
calculated based on the various
vehicle speeds recorded since the
last reset of this value. The average
speed can be reset by pressing SET
while the Average Vehicle Speed
display is showing.
Timer
This display can be used as a timer.
To start the timer, press SET while
Timer is displayed. The display will
show the amount of time that has
passed since the timer was last
reset, not including time the ignition
is off. Time will continue to be
counted as long as the ignition is
on, even if another display is being
shown on the DIC. The timer will
record up to 99 hours, 59 minutes
and 59 seconds (99:59:59) afterwhich the display will return to zero.
To stop the timer, press SET briefly
while Timer is displayed. To reset
the timer to zero, press and
hold SET.
Turn-by-Turn
This display is used for the OnStar
or Navigation System Turn-by-Turn
guidance. See
OnStar
®Systemon
page 4‑43or the Navigation
manual, if the vehicle has
navigation, for more information.
Vehicle Information Menu
Items
Press MENU on the turn signal
lever until Vehicle Information Menu
is displayed. Use
w xto scroll
through the following menu items:
.Unit
.Tire Pressure
.Remaining Oil Life

4-28 Instruments and Controls
Unit
Move
w xto switch between
Metric or US when the Unit display
is active. Press SET to confirm the
setting. This will change the
displays on the cluster and DIC to
either metric or English (US)
measurements.
Tire Pressure
The display will show a vehicle with
the approximate pressures of all
four tires. Tire pressure is displayed
in either kilopascal (kPa) or pounds
per square inch (psi). See Tire
Pressure Monitor System
on
page 9‑54and Tire Pressure
Monitor Operationon page 9‑55for
more information.
Remaining Oil Life
This display shows an estimate of
the oil's remaining useful life.
If Remaining Oil Life 99% is
displayed, that means 99% of the
current oil life remains. When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See
Engine Oil Messages
on
page 4‑35. The oil should changed
as soon as possible. See Engine Oil
on page 9‑11. In addition to the
engine oil life system monitoring the
oil life, additional maintenance is
recommended in the Maintenance
Schedule in this manual. See
Scheduled Maintenance
on
page 10‑2for more information.
Remember, the Oil Life display must
be reset after each oil change. It will
not reset itself. Also, be careful not
to reset the Oil Life display
accidentally at any time other than
when the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system press SET
while the Oil Life display is active.
See Engine Oil Life System
on
page 9‑13.
Compass
The vehicle may have a compass
display in the Driver Information
Center (DIC). See Compass
on
page 4‑8for more information.
Head-Up Display (HUD)
{WARNING
If the HUD image is too bright or
too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
For vehicles with the Head-Up
Display (HUD), some information
concerning the operation of the
vehicle is projected onto the
windshield. This includes the
speedometer reading, RPM reading,
transmission position, outside air
temperature, compass heading and
a brief display of the current radio

Instruments and Controls 4-29
station, including XM information or
CD track. It will also display
turn-by-turn navigation information if
the vehicle has a navigation radio.
The images are projected through
the HUD lens located on the driver's
side of the instrument panel.
Notice:If you try to use the HUD
image as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
The tap shift gear will also appear
on the HUD if the vehicle has tap
shift and it is active.
The HUD information can be
displayed in one of three languages,
English, French, or Spanish. The
speedometer reading and other
numerical values can be displayed
in either English or metric units.
The language selection is changed
through the radio and the units of
measurement is changed through
the trip computer in the Driver
Information Center (DIC). See
AM-FM Radioon page 6‑12andDriver Information Center (DIC)on page 4‑25.
HUD Display on the Vehicle
Windshield
The HUD information appears as an
image focused out toward the front
of the vehicle.
When the ignition key is turned to
ON/RUN, the HUD will display an
introductory message for a short
time, until the HUD is ready. The following indicator lights come
on the instrument panel when
activated and also appear on
the HUD:
.Turn Signal Indicators
.High-Beam Indicator Symbol
The HUD temporarily displays some
vehicle warnings, such as CHECK
TIRE PRESSURE and FUEL
LEVEL LOW when these messages
are on the DIC trip computer.
The HUD also displays the following
messages on vehicles with these
systems, when they are active:
.TRACTION CONTROL ACTIVE
.STABILITRAK ACTIVE
When the HUD is on, the
speedometer reading is continually
displayed. The current radio station
or CD track number will display for a
short period of time after the radio
or CD track status changes. This
happens whenever radio information
is changed. The speedometer size

Instruments and Controls 4-37
Sport Mode On
This message displays when using
the selective ride control. See
Selective Ride Control
on
page 8‑36for more information.
Traction Control Off
This message displays when the
Traction Control System (TCS) is
turned off. Adjust your driving
accordingly.
Anti-Theft Alarm System
Messages
Theft Attempted
This message displays if the vehicle
detects a tamper condition.
Tire Messages
Check XXX Tire Pressure or
Add Air To Tire
This message displays if the vehicle
detects low pressure in one or more
tires. The tire with the low pressure
will be shown in the message.
Check the tire pressures.
Service Tire Monitor System
This message displays if there is a
problem with the Tire Pressure
Monitor System (TPMS). See Tire
Pressure Monitor Operation
on
page 9‑55for more information.
Tire Learning Active
This message displays when the
system is learning new tires. See
Tire Pressure Monitor Operation
on
page 9‑55for more information.
Transmission Messages
Service Transmission
This message displays if there is a
problem with the transmission. See
your dealer/retailer.
Shift To Park
This message displays when the
transmission needs to be shifted to
park. This may appear when
attempting to remove the key from
the ignition if the vehicle is not in
P (Park).
Transmission Hot –Idle
Engine
This message displays and a chime
sounds if the transmission fluid in
the vehicle gets hot. Driving with the
transmission fluid temperature high
can cause damage to the vehicle.
Stop the vehicle and let it idle to
allow the transmission to cool. This
message clears when the fluid
temperature reaches a safe level.

Driving and Operating 8-13
Tire and Loading Information
Label
Label Example
A vehicle specific Tire and
Loading Information label is
attached to the vehicle's center
pillar (B-pillar). With the driver's
door open, you will find the label
attached below the door lock
post. The Tire and Loading
Information label shows the
number of occupant seatingpositions (A), and the maximum
vehicle capacity weight (B) in
kilograms and pounds.
The Tire and Loading
Information label also shows
the tire size of the original
equipment tires (C) and the
recommended cold tire inflation
pressures (D). For more
information on tires and inflation
see
Tires
on page 9‑46and Tire
Pressure
on page 9‑53.
There is also important loading
information on the Certification
label. It tells you the Gross
Vehicle Weight Rating (GVWR)
and the Gross Axle Weight
Rating (GAWR) for the front and
rear axle. See “Certification
Label” later in this section. Steps for Determining Correct
Load Limit
1.Locate the statement
“The combined weight of
occupants and cargo should
never exceed XXX kg or
XXX lbs”
on your vehicle's
placard.
2.Determine the combined
weight of the driver and
passengers that will be riding
in your vehicle.
3.Subtract the combined
weight of the driver and
passengers from XXX kg or
XXX lbs.

Vehicle Care 9-1
Vehicle Care
General Information
General Information . . . . . . . . . . . 9-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . . 9-2
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . 9-3
Accessories and Modifications . . . . . . . . . . . . . . . . 9-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . 9-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 9-6
Engine Oil . . . . . . . . . . . . . . . . . . . 9-11
Engine Oil Life System . . . . . . 9-13
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . 9-15
Engine Air Cleaner/Filter . . . . . 9-15
Cooling System . . . . . . . . . . . . . . 9-17
Engine Coolant . . . . . . . . . . . . . . 9-18
Engine Overheating . . . . . . . . . 9-20
Overheated Engine Protection Operating Mode . . . . . . . . . . . . 9-21
Power Steering Fluid . . . . . . . . 9-22 Washer Fluid . . . . . . . . . . . . . . . . 9-23
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-24
Brake Fluid . . . . . . . . . . . . . . . . . . 9-25
Battery . . . . . . . . . . . . . . . . . . . . . . . 9-26
Starter Switch Check . . . . . . . . 9-27
Automatic Transmission Shift
Lock Control System
Check . . . . . . . . . . . . . . . . . . . . . . 9-27
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . 9-28
Park Brake and P (Park) Mechanism Check . . . . . . . . . 9-28
Wiper Blade Replacement . . . 9-29Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 9-30
Bulb Replacement
Bulb Replacement . . . . . . . . . . . 9-33
Halogen Bulbs . . . . . . . . . . . . . . . 9-33
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . 9-33
Headlamps, Front Turn Signal and Parking Lamps . . . . . . . . . 9-33
Fog Lamps . . . . . . . . . . . . . . . . . . 9-35 Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 9-35
License Plate Lamp . . . . . . . . . . 9-36
Replacement Bulbs . . . . . . . . . . 9-37
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . . 9-38
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . 9-38
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . 9-39
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . 9-41
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . 9-43
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . 9-46
Winter Tires . . . . . . . . . . . . . . . . . . 9-46
Tire Sidewall Labeling . . . . . . . 9-47
Tire Designations . . . . . . . . . . . . 9-49
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 9-50
Tire Pressure . . . . . . . . . . . . . . . . 9-53
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . 9-54

9-2 Vehicle Care
Tire Pressure MonitorOperation . . . . . . . . . . . . . . . . . . 9-55
Tire Inspection . . . . . . . . . . . . . . . 9-59
Tire Rotation . . . . . . . . . . . . . . . . . 9-59
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . 9-60
Buying New Tires . . . . . . . . . . . . 9-61
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . 9-63
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . 9-64
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . 9-65
Wheel Replacement . . . . . . . . . 9-66
Tire Chains . . . . . . . . . . . . . . . . . . 9-67
If a Tire Goes Flat . . . . . . . . . . . 9-67
Tire Changing . . . . . . . . . . . . . . . 9-69
Compact Spare Tire . . . . . . . . . 9-74
Jump Starting
Jump Starting . . . . . . . . . . . . . . . . 9-75
Towing
Towing the Vehicle . . . . . . . . . . . 9-79
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . . 9-79
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . 9-82
Interior Care . . . . . . . . . . . . . . . . . 9-86
General Information
For service and parts needs, visit
your dealer/retailer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 Warning
Most motor vehicles, including this
one, contain and/or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm. Engine
exhaust, many parts and systems,
many fluids, and some component
wear by-products contain and/or
emit these chemicals.