2006 CADILLAC XLR V coolant temperature

Engine Coolant Heater
Your vehicle may be equipped with an engine coolant
heater.
In very cold weather, 0°F (−18°C) or colder, the engine
coolant heater can help. You will get easier starting
and better fuel economy during engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your vehicle.
At temperatures above 32°F (0°C), use of the coolant
heater is not required. Your vehicle may also have
an internal thermostat in the plug end of the cord.
This will prevent operation of the engine coolant heater
when the temperature is at or above 0°F (−18°C) as
noted on the cord.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is located on the driver’s side
of the engine compartment, in front of the engine
coolant surge tank.
3. Plug it into a normal, grounded 110-volt AC outlet.
{CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the
wrong kind of extension cord could overheat
and cause a re. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord will
not reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts. If you do not, it could be
damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer in the area where you will be parking
your vehicle. The dealer can give you the best advice
for that particular area.
2-24

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn .............................................................3-6
Power Tilt Wheel and Telescopic Steering
Column......................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Rainsense™ Wipers......................................3-10
Windshield Washer.......................................3-11
Headlamp Washer........................................3-11
Cruise Control..............................................3-12
Adaptive Cruise Control.................................3-15
Exterior Lamps.............................................3-28
Wiper Activated Headlamps............................3-29
Headlamps on Reminder................................3-29
Daytime Running Lamps (DRL).......................3-30
Adaptive Forward Lighting System...................3-31
Fog Lamps ..................................................3-31
Twilight Sentinel
®..........................................3-32
Exterior Lighting Battery Saver........................3-33
Instrument Panel Brightness...........................3-33
Courtesy Lamps...........................................3-33Entry/Exit Lighting.........................................3-33
Reading Lamps............................................3-33
Battery Run-Down Protection..........................3-34
Head-Up Display (HUD).................................3-34
Ultrasonic Rear Parking Assist (URPA)............3-38
Accessory Power Outlet(s).............................3-40
Ashtray(s) and Cigarette Lighter......................3-41
Climate Controls............................................3-41
Dual Climate Control System..........................3-41
Outlet Adjustment.........................................3-47
Passenger Compartment Air Filter...................3-47
Warning Lights, Gages, and Indicators............3-48
Instrument Panel Cluster................................3-49
Speedometer and Odometer...........................3-50
Trip Odometer..............................................3-50
Tachometer.................................................3-50
Safety Belt Reminder Light.............................3-50
Airbag Readiness Light..................................3-51
Passenger Airbag Status Indicator...................3-52
Voltmeter Gage............................................3-54
Brake System Warning Light..........................3-54
Anti-Lock Brake System Warning Light.............3-55
Traction Control System (TCS)
Warning Light...........................................3-56
Engine Coolant Temperature Gage..................3-57
Section 3 Instrument Panel
3-1

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
As the pointer nears 260°F (125°C), your engine coolant
temperature is high. A message may display on the
Driver Information Center (DIC) depending on how high
the temperature is. SeeDIC Warnings and Messages
on page 3-67for more information.
SeeEngine Overheating on page 6-25for more
information.
Tire Pressure Light
This light should come
on briey as you start the
engine. It will then come on
only when a at or low tire
pressure condition exists.
SeeTire Pressure Monitor System on page 6-59for
more information.
United States
Canada
3-57

BUCKLE SEAT BELT:This message reminds you to
buckle the driver’s seat belt.
This message will display and a chime will sound when
the ignition is on, the driver’s seat belt is unbuckled,
and the vehicle is in motion. You should buckle
your seat belt.
If the driver remains unbuckled when the ignition is on
and the vehicle is in motion, the reminder will be
repeated. If the driver’s seat belt is already buckled,
this message and chime will not come on.
This message is an additional reminder to the Safety
Belt Reminder Light in the instrument panel cluster.
SeeSafety Belt Reminder Light on page 3-50for more
information.
CHANGE OIL NOW:This means that the life of the
engine oil has expired. SeeScheduled Maintenance on
page 7-4. After an oil change, the Oil Life Indicator
must be reset. SeeOil Life Indicator on page 3-82and
Engine Oil Life System on page 6-18.
CHARGE SYSTEM FAULT:This message will display
when a problem with the charging system has been
detected. Have your vehicle serviced by your GM dealer.CHECK GAS CAP:This message will appear if the gas
cap has not been fully tightened. You should recheck
your gas cap to ensure that it is on properly.
CLEAN RADAR CRUISE:If your vehicle has this
feature, this message indicates the Adaptive Cruise
Control (ACC) system is disabled because the radar is
blocked and cannot detect vehicles in your path.
It may also activate during heavy rain or due to road
spray. To clean the system, seeAdaptive Cruise Control
on page 3-15.
CLOSE CARGO DIVIDER:This message indicates that
the cargo divider is not in place. Open the trunk and
make sure the cargo divider is secure and no objects are
on the divider. SeeRear Storage Area on page 2-46
for more information.
COOLANT OVER TEMP (Temperature):This message
will appear when the engine coolant temperature is
too hot. Stop and allow your vehicle to idle in PARK (P)
until it cools down and the message is removed. Do
not increase engine speed above a normal idle. If it does
not cool down, turn off the engine and have it serviced
by your GM dealer before driving it again. Severe
engine damage can result from an overheated engine.
SeeEngine Overheating on page 6-25.
3-68

HOT ENGINE–A/C OFF:This message displays when
the engine coolant becomes hotter than the normal
operating temperature. To avoid added strain on a hot
engine, the air conditioning compressor is automatically
turned off. When the coolant temperature returns to
normal, the A/C operation will automatically resume.
You can continue to drive your vehicle. If this message
continues to appear, have the system repaired by
your GM dealer as soon as possible to avoid
compressor damage.
ICE POSSIBLE:This message appears when the
outside air temperature is cold enough to create icy
road conditions.
LEFT DOOR AJAR:This message will display anytime
the vehicle engine is running, the transmission is not
in PARK (P) and the driver’s door is open or ajar.
A chime will sound when the vehicle’s speed is greater
than 3 mph (4.8 km/h).
LOW BRAKE FLUID:This message will display if the
vehicle is running to inform the driver that the brake
uid level is low. Have the brake system serviced
by your GM dealer as soon as possible. See “Brake
Fluid” underBrakes on page 6-35.LOW COOLANT:This message will appear when there
is a low level of engine coolant. Have the cooling
system serviced by your GM dealer as soon as possible.
SeeEngine Coolant on page 6-22.
LOW FUEL:This message will appear when the fuel
supply is less than 5 gallons (18.9 L) and the display is
turned off. A single chime will also sound when this
message is displayed.
LOW OIL LEVEL:For correct operation of the low oil
sensing system, your vehicle should be on a level
surface. A false LOW OIL LEVEL message may appear
if the vehicle is parked on a grade. The oil level
sensing system does not check for actual oil level if
the engine has been off for a short period of time,
and the oil level is never checked while the engine is
running. If the LOW OIL LEVEL message appears,
and your vehicle has been parked on level ground
with the engine off for at least 30 minutes, the oil level
should be checked by observing the oil dipstick. Prior
to checking the oil level, be sure the engine has been
off for a few minutes and your vehicle is on a level
surface. Then check the dipstick and add oil if
necessary. SeeEngine Oil on page 6-15.
3-70

Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if you add only
DEX-COOL
®extended life coolant.
The following explains your cooling system and how
to add coolant when it is low. If you have a problem
with engine overheating, seeEngine Overheating
on page 6-25.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Giving 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.
What to Use
Use a mixture of one-half clean, drinkable water and
one-half DEX-COOL®coolant which will not damage
aluminum parts. If you use this coolant mixture, you do
not need to add anything else.
6-22

Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixture at the 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.
When replacing the pressure cap, press down and turn it
clockwise until you hear a clicking sound. Make sure the
cap is hand-tight and fully seated.
Coolant Surge Tank 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 coolant surge tank pressure cap must be fully
installed on the coolant surge tank. SeeEngine
Compartment Overview on page 6-12for more
information on location.
Engine Overheating
You will nd a COOLANT OVER TEMP message or
an ENGINE HOT, STOP ENGINE message displayed
in the Driver Information Center (DIC). SeeDIC
Warnings and Messages on page 3-67. You will also
hear a chime.
There is also an engine coolant temperature gage
on the instrument panel cluster. SeeEngine Coolant
Temperature Gage on page 3-57.
6-25

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
The LOW WASHER FLUID message will be displayed
on the Driver Information Center (DIC) when the
uid is low.
Open the cap with the
washer symbol on it.
Add washer uid until the
tank is full. SeeEngine
Compartment Overview
on page 6-12for 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.
6-34