check engine BUICK LACROSSE 2007 Workshop Manual

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle.
2. Firmly apply both the parking brake and the
regular brake. SeeParking Brake on
page 117.
Do not use the accelerator pedal, and be
ready to turn off the engine immediately if it
starts.
3. Try to start the engine in each gear. The
vehicle should start only in PARK (P) or
NEUTRAL (N). If the vehicle starts in any
other position, contact your GM Goodwrench
®
dealer for service.
Automatic Transaxle Shift Lock Control
System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle. It should be parked
on a level surface.
2. Firmly apply the parking brake. SeeParking
Brake on page 117.
Be ready to apply the regular brake
immediately if the vehicle begins to move.
3. With the engine off, turn the ignition to RUN,
but do not start the engine. Without applying
the regular brake, try to move the shift
lever out of PARK (P) with normal effort. If the
shift lever moves out of PARK (P), contact
your GM Goodwrench
®dealer for service.
468

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

C
Calibration................................................... 206
California Fuel............................................. 344
California Proposition 65 Warning................ 341
Canadian Owners........................................... 3
Capacities and Specications...................... 454
Carbon Monoxide..............100, 122, 314, 327
Care of
Safety Belts............................................. 442
Your CD Player........................................ 282
Your CDs ................................................. 282
CD, MP3 ..................................................... 272
Center Console Storage Area...................... 142
Center Front Passenger Position,
Safety Belts............................................... 31
Center Seat.................................................. 14
Chains, Tire................................................. 424
Charging System Light................................ 185
Check
Engine Light............................................ 190
Check Gas Cap Light.................................. 199
Checking Things Under the Hood................ 348
Chemical Paint Spotting.............................. 446Child Restraints
Child Restraint Systems............................. 45
Infants and Young Children........................ 42
Lower Anchors and Tethers for Children..... 51
Older Children........................................... 39
Securing a Child Restraint in a Rear
Seat Position.......................................... 58
Securing a Child Restraint in the Center
Front Seat Position................................. 61
Securing a Child Restraint in the Right
Front Seat Position................................. 61
Where to Put the Restraint........................ 50
Chime Level Adjustment .............................. 284
Cigarette Lighter.......................................... 168
Cleaning
Aluminum or Chrome-Plated Wheels........ 444
Exterior Lamps/Lenses............................. 443
Fabric/Carpet........................................... 440
Finish Care.............................................. 443
Inside of Your Vehicle .............................. 438
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 441
Leather.................................................... 441
Tires........................................................ 445
499

Doing Your Own Service Work.................... 342
Door
Ajar Light................................................. 197
Automatic Door Lock................................. 98
Delayed Locking........................................ 97
Locks......................................................... 96
Power Door Locks..................................... 97
Programmable Automatic Door Unlock....... 98
Rear Door Security Locks.......................... 98
Driver
Position, Safety Belt................................... 22
Driver Information Center (DIC)................... 199
DIC Operation and Displays..................... 200
DIC Vehicle Personalization..................... 229
DIC Warnings and Messages................... 208
Driving
At Night................................................... 303
City.......................................................... 308
Defensive................................................. 286
Drunken................................................... 287
Freeway................................................... 309
Hill and Mountain Roads.......................... 312
In Rain and on Wet Roads...................... 305
Rocking Your Vehicle to Get it Out.......... 319
Winter...................................................... 314
Dual Automatic Climate Control System....... 172E
Electric Power Management........................ 163
Electrical System
Add-On Equipment................................... 449
Fuses and Circuit Breakers...................... 450
Headlamp Wiring..................................... 449
Instrument Panel Fuse Block................... 450
Power Windows and Other Power
Options................................................. 450
Underhood Fuse Block............................. 452
Windshield Wiper Fuses........................... 449
Engine
Air Cleaner/Filter...................................... 358
Battery..................................................... 384
Change Engine Oil Light.......................... 195
Check and Service Engine Soon Light..... 190
Coolant.................................................... 363
Coolant Heater......................................... 112
Coolant Temperature Gage...................... 189
Coolant Temperature Warning Light.......... 188
Drive Belt Routing.................................... 472
Engine Compartment Overview ................ 350
Exhaust................................................... 122
Oil ........................................................... 353
Oil Life System........................................ 356
501

Engine (cont.)
Overheated Protection Operating Mode.... 370
Overheating............................................. 367
Reduced Power Light............................... 196
Starting.................................................... 111
Enhanced Traction System (ETS)................ 295
Entry Lighting.............................................. 161
Event Data Recorders (EDR)...................... 489
Extender, Safety Belt..................................... 38
Exterior Lamps............................................ 158
Exterior Lighting Battery Saver.................... 160
F
Filter
Engine Air Cleaner................................... 358
Finish Damage............................................ 446
Flashers, Hazard Warning........................... 150
Flash-to-Pass.............................................. 153
Flat Tire...................................................... 425
Flat Tire, Changing...................................... 426
Flat Tire, Storing......................................... 435Fluid
Automatic Transaxle................................. 360
Power Steering........................................ 378
Windshield Washer.................................. 380
Fog Lamps.................................................. 160
Folding Rear Seat......................................... 14
Fuel............................................................ 343
Additives.................................................. 344
California Fuel.......................................... 344
Check Gas Cap Light.............................. 199
Filling a Portable Fuel Container.............. 348
Filling Your Tank...................................... 346
Fuels in Foreign Countries....................... 345
Gage....................................................... 198
Gasoline Octane...................................... 343
Gasoline Specications............................ 344
Low Warning Light................................... 198
Fuses
Fuses and Circuit Breakers...................... 450
Instrument Panel Fuse Block................... 450
Underhood Fuse Block............................. 452
Windshield Wiper..................................... 449
502

G
Gage
Engine Coolant Temperature.................... 189
Fuel......................................................... 198
Speedometer........................................... 181
Tachometer.............................................. 181
Garage Door Opener................................... 130
Gasoline
Octane..................................................... 343
Specications........................................... 344
Glove Box................................................... 141
GM Mobility Reimbursement Program.......... 483
H
Hazard Warning Flashers............................ 150
Head Restraints............................................ 13
Headlamp
Aiming..................................................... 391
Headlamp Wiring......................................... 449
Headlamps
Bulb Replacement.................................... 394
Daytime Running Lamps/Automatic
Headlamp System................................ 159Headlamps (cont.)
Flash-to-Pass........................................... 153
Front Turn Signal and Parking Lamps...... 397
Halogen Bulbs......................................... 394
Headlamps and Sidemarker Lamps.......... 395
High/Low Beam Changer......................... 153
Suggested Light....................................... 196
Headlamps and Sidemarker Lamps............. 395
Heated Seats................................................ 10
Heater......................................................... 168
Heater......................................................... 172
Highbeam On Light..................................... 196
Highway Hypnosis....................................... 311
Hill and Mountain Roads............................. 312
Hood
Checking Things Under............................ 348
Release................................................... 349
Horn............................................................ 150
How to Use This Manual ................................ 3
How to Wear Safety Belts Properly............... 21
503

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

Maintenance Schedule (cont.)
Normal Maintenance
Replacement Parts............................... 471
Owner Checks and Services.................... 466
Recommended Fluids and Lubricants....... 470
Scheduled Maintenance........................... 462
Using....................................................... 459
Your Vehicle and the Environment............ 459
Malfunction Indicator Light........................... 190
Message
DIC Warnings and Messages................... 208
Mirrors
Automatic Dimming Rearview................... 124
Automatic Dimming Rearview with
OnStar
®................................................ 125
Manual Rearview Mirror........................... 124
Manual Rearview Mirror with OnStar
®...... 124
Outside Convex Mirror............................. 126
Outside Power Heated Mirrors................. 126
Outside Power Mirrors............................. 125
MP3 ............................................................ 272
MyGMLink.com............................................ 481
N
New Vehicle Break-In.................................. 109
Normal Maintenance Replacement Parts..... 471
O
Odometer.................................................... 181
Off-Road Recovery...................................... 300
Oil
Change Engine Oil Light.......................... 195
Engine..................................................... 353
Pressure Light.......................................... 194
Oil, Engine Oil Life System ......................... 356
Older Children, Restraints............................. 39
Online Owner Center................................... 481
OnStar
®System, see OnStar®Manual........ 126
Other Warning Devices................................ 150
Outlet Adjustment........................................ 177
Outlet(s), Accessory Power.......................... 167
Outside
Convex Mirror.......................................... 126
Power Heated Mirrors.............................. 126
Power Mirrors.......................................... 125
Overhead Console Reading Lamps............. 163
Overheated Engine Protection Operating
Mode....................................................... 370
Owner Checks and Services....................... 466
Owners, Canadian.......................................... 3
506

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