key BUICK LACROSSE 2007 Repair Manual

TPMS Sensor Identication Codes
Each TPMS sensor has a unique identication
code. Any time you replace one or more of
the TPMS sensors or rotate the vehicle’s tires, the
identication codes need to be matched to the
new tire/wheel position. The sensors are matched,
to the tire/wheel positions, in the following order:
driver side front tire, passenger side front tire,
passenger side rear tire, and driver side rear tire
using a TPMS diagnostic tool. See your dealer
for service.
The TPMS sensors may also be matched to each
tire/wheel position by increasing or decreasing
the tire’s air pressure. When increasing the tire’s
pressure, do not exceed the maximum ination
pressure indicated on the tire’s sidewall.
You have two minutes to match each tire and
wheel position. If it takes longer than two minutes
to match any tire and wheel position, the
matching process stops and you need to
start over.The TPMS matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE)
transmitter’s LOCK and UNLOCK buttons
at the same time for approximately
ve seconds. The horn sounds twice to
signal the receiver is in relearn mode and the
TPMS sensor matching process can begin.
4. Start with the driver side front tire.
5. Remove the valve cap from the tire’s valve
stem. Activate the TPMS sensor by increasing
or decreasing the tire’s air pressure for
10 seconds, or until a horn chirp sounds.
The horn chirp, which may take up to
30 seconds to sound, conrms that the sensor
identication code has been matched to the
tire/wheel position. To decrease the tire’s
air-pressure use the pointed end of the valve
cap, a pencil-style air pressure gage, or a key.
414

Fuses Usage
DR/LCK
TRUNKDoor Locks, Trunk
RFA/MOD Remote Keyless Entry
PRK/SWTCH Ignition Key Lock
CLSTR Cluster
STR/WHL/
ILLUMSteering Wheel Controls
Illumination
ONSTAR/ALDL OnStar
®, Data Link
Fuses Usage
INT/ILLUM Interior Lamps
PWR/SEAT Power Seat
S/ROOF Sunroof
CNSTR Canister Vent
HVAC Climate Control System
HAZRD Turn Signal, Hazard
PRK/LAMP Park Lamps
CHMSL/BKUPCenter-High-Mounted
Stoplamp/Back-up Lamps
PWR/MIR Power Mirrors
CRUISE Cruise Control
RDO/AMP Radio, Amplier
HTD/SEAT Heated Seats
HTD/MIR Heated Mirrors
PWR/WNDW Power Window
Relays Usage
RAP Retained Accessory Power
PRK/LAMP Park Lamp Relay
R/DEFOG Rear Defogger Relay
451

Maintenance Footnotes
(a)Visually inspect brake lines and hoses for
proper hook-up, binding, leaks, cracks, chang,
etc. Inspect disc brake pads for wear and rotors for
surface condition. Inspect other brake parts,
including calipers, parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing
parts or signs of wear. Inspect power steering lines
and hoses for proper hook-up, binding, leaks,
cracks, chang, etc.
(c)Visually inspect hoses and have them replaced
if they are cracked, swollen, or deteriorated.
Inspect all pipes, ttings and clamps; replace with
genuine GM parts as needed. To help ensure
proper operation, a pressure test of the cooling
system and pressure cap and cleaning the outside
of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or
cracking. Replace wiper blades that appear worn
or damaged or that streak or miss areas of
the windshield.(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders. Lubricate all
hinges and latches, including those for the
body doors, hood, secondary latch, pivots, spring
anchor, release pawl, rear compartment, glove
box door, and console door. More frequent
lubrication may be required when exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)If you drive regularly under dusty conditions,
the lter may require replacement more often.
465

Ignition Transaxle Lock Check
While parked, and with the parking brake set, try
to turn the ignition to OFF in each shift lever
position.
The ignition should turn to OFF only when the
shift lever is in PARK (P).
The ignition key should come out only in OFF.
Contact your GM Goodwrench
®dealer if service
is required.
Parking Brake and Automatic Transaxle
Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your
vehicle could begin to move. You or
others could be injured and property
could be damaged. Make sure there is
room in front of your vehicle in case it
begins to roll. Be ready to apply the
regular brake at once should the vehicle
begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular
brake, set the parking brake.
To check the parking brake’s holding ability:
With the engine running and transaxle in
NEUTRAL (N), slowly remove foot pressure
from the regular brake pedal. Do this until the
vehicle is held by the parking brake only.
To check the PARK (P) mechanism’s holding
ability: With the engine running, shift to
PARK (P). Then release the parking brake
followed by the regular brake.
Contact your GM Goodwrench
®dealer if service
is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take
care to clean thoroughly any areas where mud and
other debris can collect.
469

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name,
part number, or specication may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM Goodwrench
®
oil meets all the requirements for
your vehicle. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on page 353.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 363.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherGM Optikleen
®Washer Solvent.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransaxleDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring
Anchor, and
Release PawlLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293, in
Canada 992723) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 109435474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579, in
Canada 992887).
470

Roadside Assistance Program
In the U.S. call1-800-252-1112.
In Canada call1-800-268-6800.
Service available 24 hours a day, 365 days a year.
As the proud owner of a new Buick vehicle, you
are automatically enrolled in the Roadside
Assistance program. This value-added service is
intended to provide you with peace of mind as you
drive in the city or travel the open road.
Who is Covered?
Roadside Assistance coverage is for the vehicle
operator, regardless of ownership. A person driving
this vehicle without the consent of the owner is not
eligible for coverage.The following services are provided in the U.S.
during the Bumper-to-Bumper warranty period and,
in Canada, during the Base Warranty coverage
period of the New Vehicle Limited Warranty, up to a
maximum coverage of $100.
Fuel Delivery:Delivery of enough fuel for the
customer to get to the nearest service station
(approximately $5 in the U.S. and 10 litres in
Canada). Service to provide diesel may be
restricted. For safety reasons, propane and
other alternative fuels will not be provided
through this service.
Lock-out Service:To ensure security, the
driver must present the vehicle registration and
personal ID before lock-out service is provided.
Lock-out service will be covered at no charge if
you are unable to gain entry into your vehicle.
If your vehicle will not start, Roadside
Assistance will arrange to have your vehicle
towed to the nearest authorized dealership. In
the U.S., replacement keys made at the
customer’s expense will be covered within
10 miles (16 km).
484

I
Ignition Positions......................................... 109
Infants and Young Children, Restraints.......... 42
Ination - Tire Pressure............................... 409
Instrument Panel
Overview.................................................. 148
Instrument Panel (I/P)
Brightness................................................ 161
Cluster..................................................... 180
Interior Lamps............................................. 161
J
Jump Starting.............................................. 385
K
Keyless Entry System................................... 89
Keys............................................................. 87
L
Labeling, Tire Sidewall................................. 403
Lamps
Battery Run-Down Protection................... 164
Courtesy.................................................. 161
Electric Power Management..................... 163
Exterior.................................................... 158
Exterior Lighting Battery Saver................. 160
Fog .......................................................... 160
Interior..................................................... 161
Overhead Console Reading..................... 163
Rear Assist Handle Reading.................... 163
LATCH System
Child Restraints......................................... 51
License Plate Lamps................................... 400
Light
Airbag Readiness..................................... 182
Anti-Lock Brake System Warning............. 187
Brake System Warning............................. 186
Change Engine Oil................................... 195
Charging System..................................... 185
Check Gas Cap....................................... 199
Cruise Control.......................................... 195
504

P
Paint, Damage............................................ 446
Park Aid...................................................... 164
Park (P)
Shifting Into............................................. 118
Shifting Out of......................................... 120
Parking
Assist....................................................... 164
Brake....................................................... 117
Over Things That Burn............................ 121
Passenger Airbag Status Indicator............... 183
Passenger Compartment Air Filter............... 178
Passenger Sensing System........................... 75
Passing....................................................... 300
PASS-Key
®III ............................................. 106
PASS-Key®III Operation............................. 107
Perimeter Lighting....................................... 163
Power
Accessory Outlet(s).................................. 167
Door Locks................................................ 97
Electrical System..................................... 450
Lumbar Controls........................................ 10
Reduced Engine Light.............................. 196Power (cont.)
Retained Accessory (RAP)....................... 110
Seat............................................................ 9
Steering Fluid.......................................... 378
Windows.................................................. 103
Pretensioners, Safety Belt............................. 38
Programmable Automatic Door Unlock........... 98
Q
Questions and Answers About Safety Belts ... 20
R
Radiator Pressure Cap................................ 367
Radios........................................................ 238
Care of Your CD Player........................... 282
Care of Your CDs.................................... 282
Radio with CD........................240, 245, 252
Radio with Six-Disc CD............................ 260
Setting the Time...................................... 239
Theft-Deterrent......................................... 280
Understanding Reception......................... 281
Rear Assist Handle Reading Lamps............ 163
507

Rear Door Security Locks............................. 98
Rear Safety Belt Comfort Guides.................. 35
Rear Seat Passengers, Safety Belts.............. 32
Rearview Mirror, Automatic Dimming............ 124
Rearview Mirror, Automatic Dimming with
OnStar
®................................................... 125
Rearview Mirror with OnStar®...................... 124
Rearview Mirrors......................................... 124
Reclining Seatbacks...................................... 11
Recommended Fluids and Lubricants.......... 470
Recreational Vehicle Towing........................ 326
Reduced Engine Power Light...................... 196
Remote Keyless Entry (RKE) System............ 89
Remote Keyless Entry (RKE) System,
Operation................................................... 90
Removing the Flat Tire and Installing the
Spare Tire................................................ 429
Removing the Spare Tire and Tools............ 427
Replacement Bulbs..................................... 400
Replacement, Windshield............................. 401
Reporting Safety Defects
Canadian Government............................. 494
General Motors........................................ 495
United States Government....................... 494Restraint System Check
Checking the Restraint Systems................. 82
Replacing Restraint System Parts
After a Crash......................................... 83
Retained Accessory Power (RAP)................ 110
Right Front Passenger Position,
Safety Belts............................................... 30
Roadside
Assistance Program................................. 484
Rocking Your Vehicle to Get it Out.............. 319
Routing, Engine Drive Belt.......................... 472
Running the Engine While Parked............... 123
S
Safety Belt
Passenger Reminder Light....................... 182
Pretensioners............................................. 38
Reminder Light........................................ 181
Safety Belts
Care of.................................................... 442
Center Front Passenger Position................ 31
Driver Position........................................... 22
How to Wear Safety Belts Properly............ 21
508

Starting Your Engine................................... 111
Steering...................................................... 297
Steering Wheel Controls, Audio................... 280
Steering Wheel, Tilt Wheel.......................... 151
Storage Areas
Center Console Storage Area................... 142
Convenience Net..................................... 142
Cupholder(s)............................................ 141
Glove Box................................................ 141
Stuck in Sand, Mud, Ice, or Snow............... 318
Sun Visors.................................................. 104
Sunroof....................................................... 143
T
Tachometer................................................. 181
Taillamps
Turn Signal, Sidemarker, Stoplamps, and
Back-Up Lamps.................................... 398
TCS Warning Light...................................... 187
Theater Dimming......................................... 162
Theft-Deterrent, Radio................................. 280
Theft-Deterrent Systems.............................. 104
Content Theft-Deterrent............................ 104
PASS-Key
®III .......................................... 106
PASS-Key®III Operation.......................... 107Tilt Wheel.................................................... 151
Tire
Pressure Light.......................................... 190
Tires........................................................... 402
Aluminum or Chrome-Plated Wheels,
Cleaning............................................... 444
Buying New Tires..................................... 418
Chains..................................................... 424
Changing a Flat Tire................................ 426
Cleaning.................................................. 445
Compact Spare Tire................................. 437
Different Size........................................... 420
If a Tire Goes Flat................................... 425
Ination - Tire Pressure............................ 409
Inspection and Rotation............................ 416
Installing the Spare Tire........................... 429
Pressure Monitor System ......................... 411
Removing the Flat Tire............................. 429
Removing the Spare Tire and Tools......... 427
Storing a Flat or Spare Tire and Tools..... 435
Tire Sidewall Labeling.............................. 403
Tire Terminology and Denitions............... 406
Uniform Tire Quality Grading.................... 421
Wheel Alignment and Tire Balance........... 422
Wheel Replacement................................. 422
When It Is Time for New Tires................. 417
510