cooling CADILLAC ESCALADE EXT 2010 3.G Owner's Manual

If no coolant is visible in the surge tank, add coolant as
follows:
1. You can remove thecoolant surge tank
pressure cap when the
cooling system,
including the coolant
surge tank pressure
cap and upper radiator
hose, is no longer hot.
Turn the pressure cap slowly counterclockwise
about one full turn. If you hear a hiss, wait for that
to stop. A hiss means there is still some
pressure left.
2. Keep turning the pressure cap slowly and remove it.
3. Fill the coolant surge tank with the proper mixtureto the FULL COLD mark.
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4. With the coolant surge tank pressure cap off, startthe engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fan. By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge
tank until the level reaches the FULL COLD mark.
5. Replace the pressure cap. Be sure the pressure cap is hand-tight and fully seated.
6. Verify coolant level after engine is shut off and the coolant is cold. If necessary, repeat coolant fill
procedure Steps 1 through 6.
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.
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Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
There is a coolant temperature gage on your vehicle's
instrument panel. SeeEngine Coolant Temperature
Gage on page 4‑33.
In addition, ENGINE OVERHEATED STOP ENGINE,
ENGINE OVERHEATED IDLE ENGINE, and a ENGINE
POWER IS REDUCED message comes on in the
Driver Information Center (DIC) on the instrument panel.
See DIC Warnings and Messages on page 4‑48.
You may decide not to lift the hood when this warning
appears, but instead get service help right away.
See Roadside Service on page 9‑8. If you do decide to lift the hood , make sure the vehicle
is parked on a level surface.
Then check to see if the engine cooling fans are
running. If the engine is overheating, both fans should
be running. If they are not, do not continue to run the
engine and have the vehicle serviced.
Notice:
Engine damage from running your engine
without coolant is not covered by your warranty.
See Overheated Engine Protection Operating Mode
on page 7‑35for information on driving to a safe
place in an emergency.
Notice: If the engine catches fire while driving with
no coolant, the vehicle can be badly damaged.
The costly repairs would not be covered by the
vehicle warranty. See Overheated Engine Protection
Operating Mode
on page 7‑35for information on
driving to a safe place in an emergency.
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If you get the ENGINE OVERHEATED STOP ENGINE
or the ENGINE OVERHEATED IDLE ENGINE message
with no sign of steam, try this for a minute or so:
If the overheat warning is displayed with no sign of
steam:1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral) while stopped. If it is safe to do so, pull off the
road, shift to P (Park) or N (Neutral) and let the
engine idle.
If the temperature overheat gage is no longer in the
overheat zone or an overheat warning no longer
displays, the vehicle can be driven. Continue to drive
the vehicle slow for about 10 minutes. Keep a safe
vehicle distance from the car in front of you. If the
warning does not come back on, continue to drive
normally.
If the warning continues, pull over, stop, and park the
vehicle right away.
If there is no sign of steam, idle the engine for
five minutes while parked. If the warning is still
displayed, turn off the engine until it cools down.
Also, see “Overheated Engine Protection Operating
Mode” later in this section.Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
ENGINE POWER IS REDUCED message is displayed,
an overheat protection mode which alternates firing
groups of cylinders helps prevent engine damage.
In this mode, you will notice a loss in power and engine
performance. This operating mode allows the vehicle to
be driven to a safe place in an emergency. 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. See Engine Oil
on
page 7‑15.
Engine Fan Noise
The vehicle has electric cooling fans. You might hear
the fans spinning at low speed during most everyday
driving. The fans can turn off if no cooling is required.
Under heavy vehicle loading, trailer towing, and/or high
outside temperatures, or if you are operating the air
conditioning system, the fans can change to high
speed and you might hear an increase in fan noise.
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This is normal and indicates that the cooling system is
functioning properly. The fans change to low speed
when additional cooling is no longer required.
Power Steering Fluid
SeeEngine Compartment
Overviewon page 7‑14for reservoir location.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid unless you suspect there is a leak in the system or
you hear an unusual noise. A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
How to Check Power Steering Fluid
To check the power steering fluid:
1. Turn the key off and let the engine compartment cool down.
2. Wipe the cap and the top of the reservoir clean.
3. Unscrew the cap and wipe the dipstick with a clean rag.
4. Replace the cap and completely tighten it.
5. Remove the cap again and look at the fluid level on the dipstick.
The level should be at the FULL COLD mark.
If necessary, add only enough fluid to bring the level up
to the mark.
What to Use
To determine what kind of fluid to use, see
Recommended Fluids and Lubricantson page 8‑10.
Always use the proper fluid.
Notice: Use of the incorrect fluid may damage the
vehicle and the damages may not be covered by the
vehicle's warranty. Always use the correct fluid
listed in Recommended Fluids and Lubricants
on
page 8‑10.
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Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
See Changing a Flat Tire
on page 7‑79for more
information.
Used Replacement Wheels
{WARNING:
Putting a used wheel on the vehicle is dangerous.
You cannot know how it has been used or how far
it has been driven. It could fail suddenly and
cause a crash. If you have to replace a wheel, use
a new GM original equipment wheel.
Tire Chains
{WARNING:
Do not use tire chains. There is not enough
clearance. Tire chains used on a vehicle without
the proper amount of clearance can cause
damage to the brakes, suspension, or other
vehicle parts. The area damaged by the tire
chains could cause you to lose control of the
vehicle and you or others may be injured in a
crash. Use another type of traction device only if
its manufacturer recommends it for use on the
vehicle and tire size combination and road
conditions. Follow that manufacturer's
instructions. To help avoid damage to the vehicle,
drive slowly, re‐adjust or remove the device if it is
contacting the vehicle, and do not spin the
wheels. If you do find traction devices that will fit,
install them on the rear tires.
7-77

J-Case FusesUsage
57 Cooling Fan 1
58 Automatic Level Control Compressor
59 Heavy Duty Antilock Brake System
60 Cooling Fan 2
61 Antilock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Electric Running Boards
66 Heated Windshield Washer System
67 Transfer Case
68Stud 1 (Trailer Connector Battery
Power)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Power Liftgate Module
72 Left Bussed Electrical Center 2
Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power
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Capacities and Specifications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricantson page 8‑10for more information.
Application Capacities
English Metric
Air Conditioning Refrigerant R134a For the Air Conditioning system refrigerant charge amount,
see the refrigerant caution label located under the hood. Please see your dealer/retailer for more information.
Cooling System 16.9 qt 16.0 L
Engine Oil with Filter 6.0 qt† 5.7 L†
Fuel Tank 31.5 gal 119.2 L
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Every Engine Oil Change
.Change engine oil and filter. SeeEngine Oilon
page 7‑15. An Emission Control Service.
.Engine coolant level check. See Engine Coolanton page 7‑27.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 7‑37.
.Tire inflation check. SeeInflation - Tire Pressureon page 7‑64.
.Tire wear inspection. See Tire Inspection and
Rotation on page 7‑70.
.Rotate tires. See Tire Inspection and Rotationon
page 7‑70.
.Fluids visual leak check (or every 12 months,
whichever occurs first). A leak in any system must
be repaired and the fluid level checked.
.Engine air cleaner filter inspection. See Engine Air
Cleaner/Filter on page 7‑20.
.Brake system inspection (or every 12 months,
whichever occurs first).
.Lubricate the front suspension, steering linkage,
and parking brake cable guides. Control arm ball
joints are maintenance‐free.
.Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts or
signs of wear.
.Engine cooling system inspection. Visual
inspection of hoses, pipes, fittings, and clamps
and replacement, if needed.
.Windshield wiper blade inspection for wear,
cracking, or contamination and windshield and
wiper blade cleaning, if contaminated. See
Windshield and Wiper Blades
on page 7‑101.
Worn or damaged wiper blade replacement.
See Windshield Wiper Blade Replacement
on
page 7‑56.
.Body hinges and latches, key lock cylinders, rear
compartment hinges, outer tailgate handle pivot
points, and folding seat hardware lubrication.
See Recommended Fluids and Lubricants
on
page 8‑10. More frequent lubrication may be
required when vehicle is exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth makes them last
longer, seal better, and not stick or squeak.
.Restraint system component check. See Checking
the Restraint Systems on page 2‑66.
.Automatic transmission fluid level check and
adding fluid, if needed. See Automatic
Transmission Fluid on page 7‑22.
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Additional Required Services
At Each Fuel Stop
.Engine oil level check. SeeEngine Oilon
page 7‑15.
.Engine coolant level check. See Engine Coolanton page 7‑27.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 7‑37.
Once a Month
.Tire inflation check. SeeInflation - Tire Pressureon page 7‑64.
.Tire wear inspection. See Tire Inspection and
Rotation on page 7‑70.
Once a Year
.Starter switch check. See Owner Checks and
Services on page 8‑8.
.Parking brake and automatic transmission P (Park)
mechanism check. See Owner Checks and
Services on page 8‑8.
.Automatic transmission shiftlock control system
check. See Owner Checks and Serviceson
page 8‑8.
.Ignition transmission lock check. See Owner
Checks and Services on page 8‑8.
.Engine cooling system and pressure cap pressure
check. Radiator and air conditioning condenser
outside cleaning. See Cooling System
on
page 7‑26.
.Exhaust system and nearby heat shields
inspection for loose or damaged components.
.Accelerator pedal check for damage, high effort,
or binding. Replace if needed.
.Hood support gas strut inspection for signs of
wear, corrosion, cracks, loss of lubricant, or other
damage. Check the hold open ability of the gas
strut. If necessary, replace with genuine parts from
your dealer/retailer.
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