2010 BUICK LACROSSE turn signal

9-34 Vehicle Care
To replace one of these bulbs:
1. Open the hood. SeeHood
on
page 9‑5.
A. Low-Beam Headlamp/DRL
B. High-Beam Headlamp
C. Parking/Turn Signal Lamp
2. If replacing a headlamp bulb, remove the dust cover from the
back of the headlamp housing
by turning counterclockwise
a quarter turn. 3. Remove the bulb socket from
the headlamp by turning
counterclockwise a quarter turn.
4. Remove the bulb from the socket.
5. Install the new bulb in the socket.
6. Install the bulb socket by turning clockwise a quarter turn.
7. If a headlamp bulb was replaced, Install the dust cover
in the back of the headlamp
housing by turning clockwise
a quarter turn.
Up–Level Headlamp Assembly
The up–level model vehicle has a
high intensity discharge (HID) high/
low beam, a dedicated DRL and a
turn signal lamp on the headlamp
assembly. The park lamp is also the
function of the HID headlamp. See
High Intensity Discharge (HID)
Lighting
on page 9‑33for more
information. To replace one of these bulbs:
1. Open the hood. See
Hood
on
page 9‑5.
A. DRL Lamp
B. Turn Signal Lamp
2. Turn the bulb socket counterclockwise to remove it
from the headlamp assembly.
3. Pull the bulb straight out from the socket.

Vehicle Care 9-35
4. Push the new bulb into thesocket and reinstall the socket
into the headlamp assembly by
turning it clockwise.
Fog Lamps
To replace one of these bulbs:
1. Locate the bulb assembly under
the front facia.
2. Disconnect the bulb socket from the electrical connector and pull
out the bulb assembly. 3. Remove the old bulb from the
bulb socket and push the new
bulb straight into the bulb socket
until it connects.
4. Push the bulb socket into the bulb assembly to lock it into
place.
5. Reconnect the bulb socket to the electrical connector.
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
A. Turn Signal Lamp
B. Back–Up Lamp
To replace one of these lamps:
1. Open the trunk. See Trunk
on
page 1‑11.
2. Pull back the trunk trim.
3. Remove the four plastic wing nuts retaining the taillamp
assembly in place.

9-36 Vehicle Care
4. Pull out the taillamp assemblyand disconnect the wiring
harness.
A. Back-up Lamp
B. Turn Signal Lamp
5. Turn the bulb socket counterclockwise to remove it.
6. Pull the old bulb straight out of the bulb socket. 7. Push the new bulb straight into
the bulb socket until it clicks.
8. Turn the bulb socket clockwise to reinstall.
9. Reconnect the wiring harness.
10. Push the taillamp assembly back into place on the vehicle.
11. Turn the four wing nuts clockwise to reinstall them.
12. Place the trunk trim to its original location.
License Plate Lamp
The licence plate lamps for this
vehicle are on the trunk lid.
To replace one of these bulbs:
1. Open the trunk. See Trunk
on
page 1‑11for more information.
2. Push the end on either of the lamp assemblies (passenger
side shown) and then move the
lamp assembly down to remove
it from trunk lid.

Vehicle Care 9-37
A. Bulb Socket
B. Lamp Assembly
C. Bulb
3. Turn the bulb socket (A) counterclockwise to remove from
lamp assembly (C).
4. Pull the bulb (B) straight out of the bulb socket. 5. Push the replacement bulb
straight into the bulb socket and
turn the bulb socket clockwise to
install into lamp assembly.
6. Move the lamp assembly into the trunk lid engaging the clip
side first.
7. Push on the lamp side opposite the clip until the lamp assembly
snaps into place.
Replacement Bulbs
Exterior Lamp Bulb
Number
Back-Up Lamp W16W
Daytime Running
Lamp (Up-Level) 3157K
Fog Lamp H11LL
Front Turn Signal/
Park Lamp 3757NAK
Headlamp High
Beam (Base) H9
Headlamp Low
Beam (Base) H11LL
License Plate Lamp W5WLL
Rear Turn Signal 3757AK
For replacement bulbs not listed
here, contact your dealer/retailer.

9-58 Vehicle Care
The TPMS sensor matching process
is outlined below:
1. Set the parking brake.
2. Turn the ignition switch toON/RUN with the engine off.
3. Use the MENU button to select the Vehicle Information Menu in
the Driver Information
Center (DIC).
4. Use the thumbwheel to scroll to the Tire Pressure Menu Item
screen.
5. Press the SET/CLR button to begin the sensor matching
process.
A message asking if you are
sure you want to begin this
process should appear. 6. Press the SET/CLR button again
to confirm the selection.
The horn sounds twice to signal
the receiver is in relearn mode
and the TIRE LEARNING
ACTIVE message displays on
the DIC screen.
7. Start with the driver side front tire.
8. Remove the valve cap from the valve cap stem. Activate the
TPMS sensor by increasing or
decreasing the tire's air pressure
for five seconds, or until a horn
chirp sounds. The horn chirp,
which may take up to
30 seconds to sound, confirms
that the sensor identification
code has been matched to this
tire and wheel position.
9. Proceed to the passenger side front tire, and repeat the
procedure in Step 8. 10. Proceed to the passenger side
rear tire, and repeat the
procedure in Step 8.
11. Proceed to the driver side rear tire, and repeat the procedure
in Step 8. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
12. Turn the ignition switch to LOCK/OFF.
13. Set all four tires to the recommended air pressure
level as indicated on the Tire
and Loading Information label.
14. Put the valve caps back on the valve stems.

i-2 INDEX
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . 9-26Jump Starting . . . . . . . . . . . . . . . . . 9-75
Load Management . . . . . . . . . . . . . 5-6
Power Protection . . . . . . . . . . . . . . 5-7
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 4-33
Blade Replacement, Wiper . . . . 9-29
Bluetooth . . . . 6-42, 6-43, 6-46, 6-57
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . 9-24 Antilock . . . . . . . . . . . . . . . . . . . . . . . 8-31
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 8-34
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25
Parking . . . . . . . . . . . . . . . . . . . . . . . 8-32
System Messages . . . . . . . . . . . . 4-33
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Break-In, New Vehicle . . . . . . . . . 8-17
Bulb Replacement . . . . . . . . . . . . . 9-37
Fog Lamps . . . . . . . . . . . . . . 5-5, 9-35
Halogen Bulbs . . . . . . . . . . . . . . . . 9-33
Headlamp Aiming . . . . . . . . . . . . . 9-30
Headlamps . . . . . . . . . . . . . . . . . . . 9-33
Headlamps, Front TurnSignal and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 9-33 Bulb Replacement (cont.)
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 9-33
License Plate Lamps . . . . . . . . . 9-36
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 9-35
Buying New Tires . . . . . . . . . . . . . . 9-61
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 4-8
California Fuel Requirements . . . . . . . . . . . 8-51
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . 9-3
Warning . . . . . . . . . . . . . . . . . . . . . . . 9-2
Camera, Rear Vision . . . . . . . . . . 8-46
Canadian Vehicle Owners . . . . . . . . iv
Capacities and Specifications . . . . . . . . . . . . . . . . 11-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 8-26
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Winter Driving . . . . . . . . . . . . . . . . . 8-9 Cautions, Danger, and
Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD DVD Player . . . . . . . . . . . . . . . . . . . 6-22
CD Player . . . . . . . . . . . . . . . . . . . . . 6-20
Center Console Storage . . . . . . . . 3-1
Chains, Tire . . . . . . . . . . . . . . . . . . . 9-67
Charging System Light . . . . . . . . 4-17
Check Engine Lamp . . . . . . . . . . . . . . . . . 4-17
Ignition Transmission Lock . . . 9-28
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 2-42
Lower Anchors and Tethers for Children . . . . . . . . . 2-48
Older Children . . . . . . . . . . . . . . . . 2-40
Securing . . . . . . . . . . . . . . . . 2-55, 2-57
Systems . . . . . . . . . . . . . . . . . . . . . . 2-45
Where to Put the Restraint . . . 2-46
Circuit Breakers . . . . . . . . . . . . . . . 9-38
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 9-82
Interior Care . . . . . . . . . . . . . . . . . . 9-86

i-6 INDEX
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Heated Front Seats . . . . . . . . . . . . . 2-8
Heated Mirrors . . . . . . . . . . . . . . . . . 1-16
High-Beam On Light . . . . . . . . . . . 4-24
Highway Hypnosis . . . . . . . . . . . . . . 8-8
Hill and Mountain Roads . . . . . . . . 8-9
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 2-13
I
Ignition Positions . . . . . . . . 8-18, 8-19
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . . 9-28
Illumination Control . . . . . . . . . . . . . 5-5
Immobilizer . . . . . . . . . . . . . . . . . . . . 1-13
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . 2-42
Instrument Cluster . . . . . . . . . . . . . 4-13
Instrument Panel . . . . . . . . . . . . . . . 5-5
Introduction . . . . . . . . . . . . . . . . . . .iii, 6-2
J
Jump Starting . . . . . . . . . . . . . . . . . . 9-75
K
Key and Lock Messages . . . . . . . 4-36
Keyless Entry Remote (RKE) System . . . 1-3, 1-5
Keyless Entry System . . . . . . . . . . 1-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
L
Labeling, Tire Sidewall . . . . . . . . . 9-47
Lamp Messages . . . . . . . . . . . . . . . 4-36
Lamps Daytime Running (DRL) . . . . . . . 5-2
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Exterior Controls . . . . . . . . . . . . . . . 5-1
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . . 5-2
Headlamps, Front Turn
Signal and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 9-33
License Plate . . . . . . . . . . . . . . . . . 9-36 Lamps (cont.)
Malfunction Indicator . . . . . . . . . 4-17
Reading . . . . . . . . . . . . . . . . . . . . . . . 5-5
Sun Visor . . . . . . . . . . . . . . . . . . . . . . 5-5
Lap-Shoulder Belt . . . . . . . . . . . . . 2-19
LATCH System Replacing Parts After aCrash . . . . . . . . . . . . . . . . . . . . . . . 2-55
Latch, Lower Anchors and
Tethers for Children . . . . . . . . . . 2-48
Light Electric Parking Brake . . . . . . . . 4-20
Lighting Adaptive Forward . . . . . . . . . . . . . . 5-3
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Lights Airbag Readiness . . . . . . . . . . . . . 4-16
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 4-21
Charging System . . . . . . . . . . . . . 4-17
Cruise Control . . . . . . . . . . . . . . . . 4-25
Engine Oil Pressure . . . . . . . . . . 4-23

i-10 INDEX
Seats (cont.)Heated Front . . . . . . . . . . . . . . . . . . 2-8
Lumbar Adjustment, Front . . . . . 2-5
Power Adjustment, Front . . . . . . 2-4
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Reclining Seatbacks . . . . . . . . . . . 2-6
Securing Child Restraints . . . . . . . . . . . . . . 2-55, 2-57
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 1-13
Selective Ride Control . . . . . . . . . 8-36
Service Accessories and
Modifications . . . . . . . . . . . . . . . . . 9-3
Doing Your Own Work . . . . . . . . . 9-4
Engine Soon Lamp . . . . . . . . . . . 4-17
Maintenance Records . . . . . . 10-10
Maintenance, General Information . . . . . . . . . . . . . . . . . . 10-1
Parts Identification Label . . . . . 11-1
Publications Ordering Information . . . . . . . . . . . . . . . . 12-12
Scheduling Appointments . . . . . 12-8 Servicing the
Airbag-Equipped Vehicle . . . . . 2-37
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 8-23
Out of Park . . . . . . . . . . . . . . . . . . . 8-25
Side Blind Zone Alert . . . . . . . . . . 8-43
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 5-4
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 9-74
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . 11-2
Speedometer . . . . . . . . . . . . . . . . . . 4-14
Start Vehicle, Remote . . . . . . . . . . 1-8
Starter Switch Check . . . . . . . . . . 9-27
Starting the Engine . . . . . . . . . . . . 8-20
Steering . . . . . . . . . . . . . . . . . . . . . . . . 8-5 Fluid, Power . . . . . . . . . . . . . . . . . . 9-22
Heated Wheel . . . . . . . . . . . . . . . . . 4-7
Wheel Adjustment . . . . . . . . . . . . . 4-6
Wheel Controls . . . . . . . . . . . . . . . . 4-6
Stoplamps and Back-Up Lamps Bulb Replacement . . . . . . . . . . . . 9-35
Storage Mass Media (MEM) . . . . . . . . . . . 6-25 Storage Areas
Center Console . . . . . . . . . . . . . . . . 3-1
Convenience Net . . . . . . . . . . . . . . 3-2
Front . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Glove Box . . . . . . . . . . . . . . . . . . . . . 3-1
Stuck Vehicle . . . . . . . . . . . . . . . . . . 8-11
Sun Visor Lamps . . . . . . . . . . . . . . . 5-5
Sun Visors . . . . . . . . . . . . . . . . . . . . . 1-19
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . .v
System Check Automatic TransmissionShiftlock Control . . . . . . . . . . . . 9-27
T
Tachometer . . . . . . . . . . . . . . . . . . . . 4-14
Taillamp Indicator Light . . . . . . . . 4-25
TaillampsBulb Replacement . . . . . . . . . . . . 9-35
Text Telephone (TTY) Users . . . 12-4
Theft-Deterrent Systems . . . . . . . . . . . . . . . 1-13, 1-14
Immobilizer . . . . . . . . . . . . . . . . . . . 1-13
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9