coolant warning light BUICK LACROSSE 2007 Owner's Manual

The remote vehicle start feature will not operate if
any of the follow occur:
The remote start system is disabled through
the DIC.
The vehicle’s key is in the ignition.
A door on the vehicle is open.
The vehicle’s hood is open.
The hazard warning ashers are on.
The check engine light is on. SeeMalfunction
Indicator Lamp on page 190.
The engine coolant temperature is too high.
The oil pressure is low.
Two remote vehicle starts have already been
provided for that ignition cycle.
If a remote start is attempted and is unsuccessful,
the Driver Information Center (DIC) will display
REMOTE START DISABLED.Vehicles that have the remote vehicle start feature
are shipped from the factory with the remote
vehicle start system enabled. The system may be
enabled or disabled through the DIC. See
“REMOTE START” underDIC Vehicle
Personalization on page 229for additional
information. If your vehicle does not have the DIC
feature, and remote vehicle start was installed
at the dealership, you will need to have the
dealership enable or disable the system.
Remote Start Ready
If your vehicle does not have the remote vehicle
start feature, it may have the remote start
ready feature. This feature gives you the ability to
lock or unlock your vehicle from about 492 feet
(150 m) away and allows your dealer to add
the manufacturer’s remote vehicle start feature.
See your dealer if you would like to add the
manufacturer’s remote vehicle start feature to
your vehicle.
95

Anti-Lock Brake System Warning Light...... 187
Traction Control System (TCS)
Warning Light........................................ 187
Engine Coolant Temperature
Warning Light........................................ 188
Engine Coolant Temperature Gage............ 189
Low Coolant Warning Light....................... 189
Tire Pressure Light.................................... 190
Malfunction Indicator Lamp........................ 190
Oil Pressure Light..................................... 194
Change Engine Oil Light........................... 195
Security Light............................................ 195
Cruise Control Light.................................. 195
Reduced Engine Power Light.................... 196
Highbeam On Light................................... 196
Headlamps Suggested Light...................... 196
Low Washer Fluid Warning Light............... 197
Door Ajar Light.......................................... 197
Trunk Ajar Light........................................ 197
Service Vehicle Soon Light........................ 197
Fuel Gage................................................. 198
Low Fuel Warning Light............................ 198
Check Gas Cap Light................................ 199Driver Information Center (DIC)................... 199
DIC Operation and Displays...................... 200
DIC Compass (Uplevel Only)..................... 206
DIC Warnings and Messages.................... 208
DIC Vehicle Personalization....................... 229
Audio System(s)......................................... 238
Setting the Time........................................ 239
Radio with CD (Base)............................... 240
Radio with CD (Uplevel)............................ 245
Radio with CD (MP3)................................ 252
Radio with Six-Disc CD............................. 260
Using an MP3........................................... 272
XM Radio Messages................................. 278
Theft-Deterrent Feature............................. 280
Audio Steering Wheel Controls.................. 280
Radio Reception........................................ 281
Care of Your CDs..................................... 282
Care of the CD Player.............................. 282
Backglass Antenna.................................... 283
XM™ Satellite Radio Antenna System....... 284
Chime Level Adjustment............................ 284
Section 3 Instrument Panel
146

The TCS warning light will come on briey when
you turn the ignition to RUN. If it does not come on
then, have it xed so it will be ready to warn
you if there is a problem.
If the TCS warning light stays on or comes on
while you are driving, pull off the road as soon as
possible and stop carefully. Try resetting the
system by turning the ignition off then back on. If
the light still stays on or comes back on again
while you are driving, your vehicle needs service.
Have the traction control system and, if your
vehicle has this feature, the StabiliTrak
®system
inspected as soon as possible. SeeTraction
Control System (TCS) on page 294and
StabiliTrak
®System on page 296for more
information.
Engine Coolant Temperature
Warning Light
This light tells you that
your engine is very hot.
This light will come on when you rst start the
vehicle as a check to let you know that the light is
working. It will go out after a few seconds. If the
light does not come on, the bulb may be burned out.
See your dealer to have it corrected.
If the light does not go out or if the light comes on
and stays on while you are driving, your vehicle
may have a problem with the cooling system. You
should stop the vehicle and turn off the engine
as soon as possible to avoid damage to the
engine. A warning chime will sound when this light
is on, also.
SeeEngine Overheating on page 367.
188

Engine Coolant Temperature Gage
The vehicle has a gage
that shows the engine
coolant temperature.
If the gage pointer moves towards the H, the
engine is too hot.This reading indicates the same thing as the
warning light. It means that the engine coolant has
overheated. If the vehicle has been operating
under normal driving conditions, pull off the road,
stop the vehicle, and turn off the engine as
soon as possible. SeeEngine Overheating on
page 367.
Low Coolant Warning Light
If your vehicle has this
light, it comes on briey
when you turn your
ignition on as a
bulb check only.
189

ENGINE COOLANT HOT
Notice:If you drive your vehicle while the
engine is overheating, severe engine damage
may occur. If an overheat warning appears
on the instrument panel cluster and/or
DIC, stop the vehicle as soon as possible.
Do not increase the engine speed above
normal idling speed. SeeEngine Overheating
on page 367for more information.
This message displays when the engine coolant
temperature is too hot. The engine coolant
temperature warning light also appears on the
instrument panel cluster. SeeEngine Coolant
Temperature Warning Light on page 188
andEngine Coolant Temperature Gage on
page 189for more information.
To avoid added strain on the engine, turn off the
air conditioner if it is on. When the coolant
temperature returns to normal, the air conditioner
can be turned back on.
This message displays only when the ignition is in
RUN. A chime sounds continuously when this
message is displayed. Press any of the DIC
buttons to acknowledge this message and to clear
it from the screen.This message continues to display for two seconds
if it has not been acknowledged when the engine is
turned off. It also re-displays for two seconds if the
message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
HEADLAMPS SUGGESTED
This message displays when the amount of
available light outside of the vehicle is low, or the
windshield wipers have been on for about
30 seconds, and the exterior lamps control is off
or in the parking lamps position. This message
informs the driver that turning on the exterior lamps
is recommended. SeeExterior Lamps on
page 158for more information.
This message displays while the ignition is in RUN.
Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
213

Engine Coolant
The cooling system in the vehicle is lled with
DEX-COOL®engine coolant. This coolant
is designed to remain in the vehicle for ve years
or 150,000 miles (240 000 km), whichever
occurs rst, if only DEX-COOL
®extended life
coolant is added.
The following explains the cooling system and
how to add coolant when it is low. If there is
a problem with engine overheating or if coolant
needs to be added to the radiator, seeEngine
Overheating on page 367.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®engine coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core, or
radiator corrosion. In addition, the engine
coolant may require changing sooner, at the rst
maintenance service after each 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.
363

Radiator Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
The radiator pressure cap is located in the front
of the engine compartment on the passenger’s
side of the vehicle. SeeEngine Compartment
Overview on page 350for more information
on location.
Engine Overheating
There is a coolant temperature gage and a
warning light on the instrument panel cluster that
indicate an overheated engine condition. See
Engine Coolant Temperature Gage on page 189
andEngine Coolant Temperature Warning Light
on page 188for more information.
In addition, if your vehicle is equipped with a
Driver Information Center (DIC), you will nd an
ENGINE COOLANT HOT and a REDUCED
POWER STOP WHEN SAFE message displayed
on the DIC. SeeDIC Warnings and Messages
on page 208for more information.
367

Overheated Engine Protection
Operating Mode
This emergency operating mode allows your
vehicle to be driven to a safe place in an emergency
situation. If an overheated engine condition exists,
an overheat protection mode which alternates ring
groups of cylinders helps prevent engine damage.
In this mode, you will notice a signicant loss in
power and engine performance. The REDUCED
POWER STOP WHEN SAFE message will come
on in the Driver Information Center (DIC), if the
vehicle has one, along with the engine coolant
temperature warning light on the instrument panel,
to indicate the vehicle has entered overheated
engine protection operating mode. The temperature
gage will also indicate an overheat condition exists.
Driving extended miles (km) and/or towing a trailer
in the overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine
damage, allow the engine to cool before
attempting any repair. The engine oil will
be severely degraded. Repair the cause of
coolant loss, change the oil and reset the
oil life system. SeeEngine Oil on page 353.
Cooling System
When you decide it is safe to lift the hood, this is
what you will see:
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Electric Engine Cooling Fans
3.8L V6 Engine
370

Windshield Washer Fluid
What to Use
When you need windshield washer uid, be sure
to read the manufacturer’s instructions before
use. If you will be operating your vehicle in an area
where the temperature may fall below freezing,
use a uid that has sufficient protection against
freezing.
Adding Washer Fluid
When the windshield washer uid is low, a low
washer uid light may appear on the instrument
panel cluster. SeeLow Washer Fluid Warning
Light on page 197for more information.
In addition, if your vehicle has a Driver Information
Center (DIC), the LOW WASHER FLUID
message will display when the uid level is low.
SeeDIC Warnings and Messages on page 208
for more information.Open the cap with the
washer symbol on it.
Add washer uid until
the tank is full. See
Engine Compartment
Overview on page 350
for reservoir location.
Notice:
When using concentrated washer uid,
follow the manufacturer’s instructions
for adding water.
Do not mix water with ready-to-use washer
uid. Water can cause the solution to
freeze and damage your washer uid tank
and other parts of the washer system.
Also, water does not clean as well
as washer uid.
Fill your washer uid tank only
three-quarters full when it is very cold.
This allows for expansion if freezing
occurs, which could damage the tank if
it is completely full.
Do not use engine coolant (antifreeze) in
your windshield washer. It can damage
your washer system and paint.
380

Cleaning (cont.)
Underbody Maintenance........................... 446
Washing Your Vehicle.............................. 442
Weatherstrips........................................... 442
Windshield and Wiper Blades................... 444
Climate Control System............................... 168
Air Filter, Passenger Compartment........... 178
Dual Automatic......................................... 172
Outlet Adjustment..................................... 177
Collision Damage Repair............................. 490
Comfort Guides, Rear Safety Belt................. 35
Compact Spare Tire.................................... 437
Compass..................................................... 206
Content Theft-Deterrent............................... 104
Control of a Vehicle..................................... 290
Convenience Net......................................... 142
Coolant
Engine Temperature Gage........................ 189
Engine Temperature Warning Light........... 188
Heater, Engine......................................... 112
Low Warning Light................................... 189
Cooling System........................................... 370
Courtesy Lamps.......................................... 161
Cruise Control............................................. 154
Cruise Control Light.................................... 195
Cupholder(s)................................................ 141Customer Assistance Information
Courtesy Transportation........................... 487
Customer Assistance for Text Telephone
(TTY) Users.......................................... 482
Customer Assistance Offices.................... 482
Customer Satisfaction Procedure.............. 478
GM Mobility Reimbursement Program...... 483
Reporting Safety Defects to
General Motors..................................... 495
Reporting Safety Defects to the
Canadian Government.......................... 494
Reporting Safety Defects to the
United States Government.................... 494
Roadside Assistance Program.................. 484
Service Publications Ordering
Information........................................... 495
D
Daytime Running Lamps/Automatic
Headlamp System.................................... 159
Defensive Driving........................................ 286
Delayed Entry Lighting................................ 162
Delayed Exit Lighting................................... 162
Delayed Locking............................................ 97
DIC Compass.............................................. 206
Disc, MP3................................................... 272
500