2007 BUICK LUCERNE check engine light

You can run the engine to keep warm, but be
careful.
{CAUTION:
Snow can trap exhaust gases under
your vehicle. This can cause deadly CO
(carbon monoxide) gas to get inside.
CO could overcome you and kill you.
You cannot see it or smell it, so you might
not know it is in your vehicle. Clear away
snow from around the base of your
vehicle, especially any that is blocking
your exhaust pipe. And check around
again from time to time to be sure snow
does not collect there.
Open a window just a little on the side of
the vehicle that is away from the wind.
This will help keep CO out.
Run your engine only as long as you must. This
saves fuel. When you run the engine, make it go
a little faster than just idle. That is, push the
accelerator slightly. This uses less fuel for the heat
that you get and it keeps the battery charged.
305

Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your
vehicle can affect the airow around it. This may
cause wind noise and affect windshield washer
performance. Check with your dealer before
adding equipment to the outside of your vehicle.
Fuel
Use of the recommended fuel is an important part
of the proper maintenance of your vehicle. To
help keep your engine clean and maintain optimum
vehicle performance, GM recommends the use
of gasoline advertised as TOP TIER Detergent
Gasoline.
The 8th digit of your Vehicle Identication Number
(VIN) shows the code letter or number that
identies your engine. You will nd the VIN at the
top left of the instrument panel. SeeVehicle
Identication Number (VIN) on page 427.
Gasoline Octane
If your vehicle has the 3.8L V6 engine (VIN
Code 2), use regular unleaded gasoline with a
posted octane rating of 87 or higher. If the octane
rating is less than 87, you may notice an audible
knocking noise when you drive, commonly referred
to as spark knock. If this occurs, use a gasoline
rated at 87 octane or higher as soon as possible.
If you are using gasoline rated at 87 octane or
higher and you hear heavy knocking, your engine
needs service.
If your vehicle has the 4.6L V8 engine (VIN
Code Y), use premium unleaded gasoline with a
posted octane rating of 91 or higher. You may also
use regular unleaded gasoline rated at 87 octane
or higher, but your vehicle’s acceleration may
be slightly reduced, and you may notice a slight
audible knocking noise, commonly referred to
as spark knock. If the octane is less than 87, you
may notice a heavy knocking noise when you
drive. If this occurs, use a gasoline rated at
87 octane or higher as soon as possible.
Otherwise, you might damage your engine. If you
are using gasoline rated at 87 octane or higher
and you hear heavy knocking, your engine needs
service.
327

Follow these steps to reinstall the cover to the
engine air cleaner/lter housing:
1. Align the two hinges located on the inboard
side of the cover.
2. Push the cover slightly down and towards the
engine to engage the tabs in the hinges and
align the two screws.
3. Tighten the two screws on the top of the
engine air cleaner/lter housing cover.
{CAUTION:
Operating the engine with the air cleaner/
lter off can cause you or others to be
burned. The air cleaner not only cleans the
air; it helps to stop ames if the engine
backres. If it is not there and the engine
backres, you could be burned. Do not
drive with it off, and be careful working on
the engine with the air cleaner/lter off.Notice:If the air cleaner/lter is off, a backre
can cause a damaging engine re. And, dirt
can easily get into your engine, which will
damage it. Always have the air cleaner/lter in
place when you are driving.
Automatic Transaxle Fluid
When to Check and Change Automatic
Transaxle Fluid
A good time to check your automatic transaxle
uid level is when the engine oil is changed.
Change the uid and lter at the intervals listed in
Scheduled Maintenance on page 442, and be
sure to use the transaxle uid listed in
Recommended Fluids and Lubricants on page 452.
343

Adding Coolant
If you need more coolant, add the proper
DEX-COOL®coolant mixture at the coolant surge
tank, but only when the engine is cool.
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol, and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
Occasionally check the coolant level in the
radiator. For information on how to add coolant to
the radiator, see Index. When replacing the
pressure cap, make sure to turn cap until it clicks.
Radiator Pressure Cap
Notice:The radiator cap on your vehicle is a
pressure-type cap and must be tightly
installed to prevent coolant loss and possible
engine damage from overheating. Be sure
the arrows on the cap line up with the overow
tube on the radiator ller neck.
SeeEngine Compartment Overview on page 334
for more information on location.
Engine Overheating
You will nd a warning light about a hot engine as
well as an engine coolant temperature gage on
your vehicle’s instrument panel cluster.
351

C
Calibration.......................... 19,130, 132, 218
California Fuel............................................. 328
California Proposition 65 Warning................ 326
Canadian Owners........................................... 3
Capacities and Specications...................... 436
Carbon Monoxide..............106, 127, 302, 315
Care of
Safety Belts............................................. 422
Your CD Player........................................ 274
Your CDs ................................................. 273
CD, MP3 ..................................................... 262
Center Console Storage Area...................... 151
Center Flex Storage Unit............................. 152
Center Front Passenger Position,
Safety Belts............................................... 35
Center Seat.................................................. 18
Chains, Tire................................................. 406
Charging System Light................................ 200
Check
Engine Light............................................ 206
Checking Things Under the Hood................ 332
Chemical Paint Spotting.............................. 425Child Restraints
Child Restraint Systems............................. 49
Infants and Young Children........................ 46
Lower Anchors and Tethers for Children..... 55
Older Children........................................... 43
Securing a Child Restraint in a
Rear Seat Position................................. 62
Securing a Child Restraint in the
Center Front Seat Position..................... 65
Securing a Child Restraint in the
Right Front Seat Position........................ 65
Where to Put the Restraint........................ 53
Cigarette Lighter.......................................... 182
Cleaning
Aluminum or Chrome-Plated Wheels........ 424
Exterior Lamps/Lenses............................. 422
Fabric/Carpet........................................... 420
Finish Care.............................................. 423
Inside of Your Vehicle .............................. 418
Instrument Panel, Vinyl, and
Other Plastic Surfaces.......................... 421
Leather.................................................... 421
Tires........................................................ 424
Underbody Maintenance........................... 425
483

Door
Delayed Locking...................................... 103
Locks....................................................... 102
Power Door Locks................................... 103
Programmable Automatic Door Locks....... 104
Rear Door Security Locks........................ 104
Driver
Position, Safety Belt................................... 25
Driver Information Center (DIC)................... 212
DIC Controls and Displays....................... 212
DIC Vehicle Customization....................... 231
DIC Warnings and Messages................... 221
Driving
At Night................................................... 291
City.......................................................... 296
Defensive................................................. 276
Drunken................................................... 277
Freeway................................................... 297
Hill and Mountain Roads.......................... 300
In Rain and on Wet Roads...................... 293
Rocking Your Vehicle to Get it Out.......... 307
Winter...................................................... 302
Dual Automatic Climate Control System....... 186E
Electric Power Management........................ 176
Electrical System
Add-On Equipment................................... 428
Fuses and Circuit Breakers...................... 428
Power Windows and
Other Power Options............................ 428
Rear Underseat Fuse Block..................... 431
Underhood Fuse Block............................. 428
Engine
Air Cleaner/Filter...................................... 342
Battery..................................................... 370
Check and Service Engine Soon Light..... 206
Coolant.................................................... 347
Coolant Heater......................................... 117
Coolant Temperature Gage...................... 204
Coolant Temperature Warning Light.......... 204
Drive Belt Routing.................................... 454
Engine Compartment Overview ................ 334
Exhaust................................................... 127
Oil ........................................................... 337
Oil Life System........................................ 340
485

G
Gage
Engine Coolant Temperature.................... 204
Fuel......................................................... 211
Speedometer........................................... 196
Tachometer.............................................. 196
Garage Door Opener..........................139, 140
Gasoline
Octane..................................................... 327
Specications........................................... 328
Glove Box................................................... 151
GM Mobility Reimbursement Program.......... 465
H
Hazard Warning Flashers............................ 160
Head Restraints............................................ 17
Headlamp
Aiming..................................................... 377Headlamps
Bulb Replacement.................................... 380
Daytime Running Lamps.......................... 172
Flash-to-Pass........................................... 164
Halogen Bulbs......................................... 380
High/Low Beam Changer......................... 163
On Reminder........................................... 171
Wiper Activated........................................ 171
Heated Seats......................................... 11, 12
Heated Steering Wheel............................... 161
Heater......................................................... 182
Heater......................................................... 186
Highbeam On Light..................................... 210
Highway Hypnosis....................................... 299
Hill and Mountain Roads............................. 300
Hood
Checking Things Under............................ 332
Release................................................... 333
Horn............................................................ 160
How to Use This Manual ................................ 4
How to Wear Safety Belts Properly............... 25
487

Light (cont.)
Cruise Control.......................................... 210
Engine Coolant Temperature Warning....... 204
Fog Lamp................................................ 210
Highbeam On.......................................... 210
Malfunction Indicator................................ 206
Oil Pressure............................................. 209
Passenger Airbag Status Indicator............ 198
Passenger Safety Belt Reminder.............. 197
Safety Belt Reminder............................... 196
Security................................................... 210
StabiliTrak
®Indicator................................ 203
TCS Warning Light.................................. 202
Tire Pressure........................................... 205
Traction Control System (TCS) Warning..... 202
Lighting
Delayed Entry.......................................... 174
Delayed Exit............................................ 175
Entry........................................................ 174
Perimeter................................................. 175
Theater Dimming..................................... 175
Loading Your Vehicle................................... 307
Locks
Delayed Locking...................................... 103
Door........................................................ 102
Lockout Protection................................... 105
Power Door............................................. 103Locks (cont.)
Programmable Automatic Door Locks....... 104
Rear Door Security Locks........................ 104
Loss of Control........................................... 290
Lumbar
Power Controls.......................................... 10
M
Maintenance Schedule
Additional Required Services.................... 444
At Each Fuel Fill...................................... 448
At Least Once a Month............................ 449
At Least Once a Year .............................. 449
Introduction.............................................. 440
Maintenance Footnotes............................ 446
Maintenance Record................................ 455
Maintenance Requirements...................... 440
Normal Maintenance Replacement Parts.... 453
Owner Checks and Services.................... 448
Recommended Fluids and Lubricants....... 452
Scheduled Maintenance........................... 442
Using....................................................... 440
Your Vehicle and the Environment............ 440
Malfunction Indicator Light........................... 206
Manual Passenger Seat.................................. 9
Memory Seat and Mirrors.............................. 13
489