heater BUICK LUCERNE 2007 User Guide

Cooling System (3.8L V6 Engine)
When you decide it is safe to lift the hood, here is
what you will see:
A. Radiator Pressure Cap
B. Coolant Recovery Tank
C. Electric Engine Cooling Fans{CAUTION:
An electric engine cooling fan under the
hood can start up even when the engine
is not running and can injure you. Keep
hands, clothing, and tools away from any
underhood electric fan.
If the coolant inside the coolant recovery tank is
boiling, do not do anything else until it cools down.
The vehicle should be parked on a level surface.
The coolant level should be at or above the
FULL COLD mark when the engine is cold. The
coolant level should be above the FULL COLD
mark under normal operating conditions. If it is not,
you may have a leak at the pressure cap or in
the radiator hoses, heater hoses, radiator, water
pump or somewhere else in the cooling system.
354

{CAUTION:
Heater and radiator hoses, and other
engine parts, can be very hot. Do not
touch them. If you do, you can be burned.
Do not run the engine if there is a leak. If
you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.
If there seems to be no leak, with the engine on,
check to see if the electric engine cooling fans
are running. If the engine is overheating, both fans
should be running. If they are not, your vehicle
needs service.Notice:Engine damage from running your
engine without coolant is not covered by your
warranty.
Notice:Using coolant other than DEX-COOL®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner, at
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
355

How to Add Coolant to the Coolant
Recovery Tank
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant and
the proper coolant mixture.
If you have not found a problem yet, but the
coolant level is not at the FULL COLD mark, add
a 50/50 mixture ofclean, drinkable waterand
DEX-COOL
®engine coolant at the coolant
recovery tank. SeeEngine Coolant on page 347
for more information.
{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.
When the coolant in the coolant recovery tank is
at the FULL COLD mark, start your vehicle.
356

If the coolant inside the coolant surge tank is
boiling, do not do anything else until it cools down.
The vehicle should be parked on a level surface.
{CAUTION:
Heater and radiator hoses, and other
engine parts, can be very hot. Do not
touch them. If you do, you can be burned.
Do not run the engine if there is a leak. If
you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.
If there seems to be no leak, with the engine on,
check to see if the electric engine cooling fans
are running. If the engine is overheating, both fans
should be running. If they are not, your vehicle
needs service.
Notice:Engine damage from running your
engine without coolant is not covered by your
warranty. SeeOverheated Engine Protection
Operating Mode on page 353for information on
driving to a safe place in an emergency.Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner, at
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
How to Add Coolant to the Coolant
Surge Tank
If you have not found a problem yet, check to see
if coolant is visible in the surge tank. If coolant
is visible but the level is not at the FULL COLD
mark located on the side of the surge tank,
add enough of a 50/50 mixture of clean, drinkable
water and DEX-COOL
®coolant at the coolant
surge tank to bring the level to the FULL COLD
mark, but be sure the cooling system, including the
coolant surge tank pressure cap (if equipped), is
cool before you do it. SeeEngine Coolant on
page 347for more information.
361

Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant and
the proper coolant mixture.
{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.You can remove the coolant surge tank pressure
cap when the cooling system, including the
coolant surge tank pressure cap and upper
radiator hose, is no longer hot.
1. Turn the pressure cap slowly
counterclockwise. If you hear a hiss, wait for
that to stop. A hiss means there is still
some pressure left.
2. Then keep turning the cap and remove it.
363

Cleaning (cont.)
Washing Your Vehicle.............................. 422
Weatherstrips........................................... 422
Windshield and Wiper Blades................... 423
Climate Control System............................... 182
Air Filter, Passenger Compartment........... 192
Dual Automatic......................................... 186
Outlet Adjustment..................................... 192
Collision Damage Repair............................. 472
Comfort Guides, Rear Safety Belt................. 39
Compact Spare Tire.................................... 418
Compass............................ 19,130, 132, 218
Content Theft-Deterrent............................... 110
Control of a Vehicle..................................... 280
Convenience Net......................................... 152
Coolant
Engine Temperature Gage........................ 204
Engine Temperature Warning Light........... 204
Heater, Engine......................................... 117
Cooled Seats................................................ 12
Cooling System..................................354, 360
Cornering Lamps......................................... 173
Courtesy Lamps.......................................... 174
Cruise Control............................................. 167
Cruise Control Light.................................... 210
Cupholder(s)................................................ 151Customer Assistance Information
Courtesy Transportation........................... 469
Customer Assistance for
Text Telephone (TTY) Users................. 464
Customer Assistance Offices.................... 464
Customer Satisfaction Procedure.............. 460
GM Mobility Reimbursement Program...... 465
Reporting Safety Defects to
General Motors..................................... 478
Reporting Safety Defects to the
Canadian Government.......................... 477
Reporting Safety Defects to the
United States Government.................... 477
Roadside Assistance Program.................. 466
Service Publications Ordering
Information........................................... 478
D
Daytime Running Lamps............................. 172
Delayed Entry Lighting................................ 174
Delayed Exit Lighting................................... 175
DIC Compass.............................................. 218
Disc, MP3................................................... 262
Doing Your Own Service Work.................... 326
484

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

Spare Tire
Compact.................................................. 418
Installing.................................................. 410
Removing................................................ 409
Storing..................................................... 416
Specications, Capacities............................ 436
Speedometer............................................... 196
StabiliTrak
®System..................................... 284
StabiliTrak®Indicator Light........................... 203
Starting Your Engine................................... 116
Steering...................................................... 285
Steering Wheel Controls, Audio................... 271
Steering Wheel, Heated.............................. 161
Steering Wheel, Tilt Wheel.......................... 161
Storage Areas
Center Console Storage Area................... 151
Center Flex Storage Unit......................... 152
Convenience Net..................................... 152
Cupholder(s)............................................ 151
Front Storage Area.................................. 151
Glove Box................................................ 151
Rear Seat Armrest................................... 152
Stuck in Sand, Mud, Ice, or Snow............... 306
Sun Visors.................................................. 109
Sunroof....................................................... 153
T
Tachometer................................................. 196
Taillamps
Back-Up Lamps....................................... 382
Turn Signal, Stoplamps and
Sidemarker Lamps................................ 380
TCS Warning Light...................................... 202
Theater Dimming......................................... 175
Theft-Deterrent, Radio................................. 271
Theft-Deterrent Systems.............................. 110
Content Theft-Deterrent............................ 110
PASS-Key
®III+........................................ 111
PASS-Key®III+ Operation........................ 112
Tilt Wheel.................................................... 161
Tire
Pressure Light.......................................... 205
Tires........................................................... 385
Aluminum or Chrome-Plated Wheels,
Cleaning............................................... 424
Buying New Tires..................................... 400
Chains..................................................... 406
Changing a Flat Tire................................ 408
Cleaning.................................................. 424
Compact Spare Tire................................. 418
494