2021 CADILLAC ESCALADE ECU

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
VEHICLE CARE 375
1. Remove the coolant surge tankpressure 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 a hiss is heard, 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 mixture to the full
cold mark.
4. With the coolant surge tank pressure cap off, start the engine
and let it run until the engine
coolant temperature gauge
indicates approximately 90 °C
(195 °F). 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 indicated mark.
5. Replace the pressure cap tightly.
6. Verify coolant level after the engine is shut off and the coolant is cold.
If necessary, repeat coolant fill
procedure Steps 1–6.
Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the cap
is properly and tightly secured.
Engine Overheating
If the vehicle has a diesel engine, see
the Duramax diesel supplement.
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all coolant
(Continued)
Caution (Continued)
and can damage the system and
vehicle. Have any leaks fixed
right away.
The vehicle has several indicators to
warn of engine overheating.
There is a coolant temperature gauge
and an engine coolant temperature
warning light in the vehicle's
instrument cluster. See Engine Coolant
Temperature Gauge 0117 and
Engine Coolant Temperature Warning
Light 0128.
In addition, there are ENGINE
OVERHEATED STOP ENGINE,
ENGINE OVERHEATED IDLE ENGINE,
and ENGINE POWER IS REDUCED
messages in the Driver Information
Center (DIC).
If the decision is made not to lift the
hood when this warning appears, get
service help right away. See Roadside
Service 0462.
If the decision is made to lift the
hood, make sure the vehicle is parked
on a level surface.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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The rear wiper blade will not lock
in a vertical position so use care
when pulling it away from the
vehicle.
2. Push the release lever (2) todisengage the hook and push the
wiper arm (1) out of the blade
assembly (3).
3. Push the new blade assembly securely in the wiper arm hook
until the release lever clicks into
place.
4. Return the wiper arm and blade assembly to the rest position on
the glass.
Glass Replacement
If the windshield or front side glass
must be replaced, see your dealer to
determine the correct replacement
glass.
Windshield Replacement
HUD System
The windshield is part of the HUD
system. If the windshield needs to be
replaced, be sure to get one that is
designed for HUD or the HUD image
may look out of focus.
Driver Assistance Systems
If the windshield needs to be replaced
and the vehicle is equipped with a
front camera sensor for the Driver
Assistance Systems, a GM
replacement windshield is
recommended. The replacement
windshield must be installed
according to GM specifications for
proper alignment. If it is not, these
systems may not work properly, they
may display messages, or they may
not work at all. See your dealer for
proper windshield replacement.
Acoustic Windshield
The vehicle is equipped with an
acoustic windshield. If the windshield
needs to be replaced be sure to get an
acoustic windshield so you will
continue to have the benefits an
acoustic windshield can provide.
Gas Strut(s)
This vehicle is equipped with gas
strut(s) to provide assistance in lifting
and holding open the hood/trunk/
liftgate system in full open position.
{Warning
If the gas struts that hold open the
hood, trunk, and/or liftgate fail, you
or others could be seriously injured.
Take the vehicle to your dealer for
service immediately. Visually
inspect the gas struts for signs of
wear, cracks, or other damage
periodically. Check to make sure the
hood/trunk/liftgate is held open
with enough force. If struts are
failing to hold the hood/trunk/
liftgate, do not operate. Have the
vehicle serviced.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
414 VEHICLE CARE
the load floor, secured with velcro
straps. The jack is behind a door in
the trim panel on the driver side.
1. Pull to open the trim panel door.
The third row driver side seat
may need to be folded to access
the trim panel door.
2. Turn the jack knobcounterclockwise to release the
jack and wheel blocks from the
bracket. If equipped, remove the
wheel blocks from the jack and
place the wheel blocks on both
sides of the tire at the opposite
corner of the tire being changed.
See If a Tire Goes Flat 0412 for
more information on the
placement of the wheel blocks.
Place the jack and wheel blocks
near the tire being changed.Short Wheel Base Shown, Extended Wheel Base Similar
3. Lift the load floor. Remove the
jacking tools and place them near
the tire being changed.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Warning (Continued)
damage if the hoist cable fails or if
the tire comes loose. Make sure the
tire is stored securely before
driving.
Caution
Always store the spare tire or flat
tire with the valve stem pointed up.
Stowing a tire with the valve stem
pointed down could result in
damage to the wheel.
Caution
The tire hoist is designed to be
raised and lowered with tension on
the cable. If the hoist must be
raised or lowered without a tire
attached, do so only by hand, and
at a slow pace, to avoid damaging
the mechanism. Do not use power
tools.
{Warning
An improperly stored spare tire
could come loose and cause a crash.
To avoid personal injury or property
damage, always store the spare tire
when the vehicle is parked on a
level surface.
If the vehicle has 275/60R20 or 275/
50R22 size tires, the flat tire must be
stored inside of the vehicle using the
flat tire secure strap inside the glove
box. See “Storing a Flat Tire Inside of
the Vehicle ”later in this section.
If the vehicle has 265/65R18 or 275/
55R20 size tires, store the flat tire
under the rear of the vehicle in the
spare tire carrier. Refer to the
following graphics and instructions:
1. Hoist Assembly
2. Hoist Shaft
3. Hoist Shaft Access Cover/Hole
4. Jack Handle Extension
5. Wheel Wrench
6. Spare Tire Lock
7. Hoist End of Extension Tool
8. Hoist Shaft Access Hole
9. Spare Tire (Valve Stem Pointed Up)
10.Tire/Wheel Retainer
11.Hoist Cable
1. Put the tire (9) on the ground at the rear of the vehicle with the
valve stem pointed up, and to
the rear.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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2. Tilt the tire toward the vehicle.Separate the tire/wheel retainer
from the guide pin. Pull the pin
through the center of the wheel.
Tilt the retainer down through the
center wheel opening.
Make sure the retainer is fully
seated across the underside of the
wheel.
3. Assemble the jack handleextensions (4) and wheel
wrench (5).
Caution
Use of an air wrench or other power
tools with the hoist mechanism is
not recommended and could
damage the system. Use only the
tools supplied with the hoist
mechanism.
4. Insert the open end of theextension (7) through the hole in
the rear bumper (8) (hoist shaft
access hole).
5. Raise the tire part way upward. Make sure the retainer is seated in
the wheel opening. 6. Raise the tire fully against the
underside of the vehicle by turning
the wheel wrench clockwise until
you hear two clicks or feel it skip
twice. The cable cannot be
overtightened.
7. Make sure the tire is storedsecurely. Push, pull, and then try to
turn the tire. If the tire moves, use
the wheel wrench to tighten the
cable.
Repeat this tightness check
procedure when checking the spare
tire pressure according to the
scheduled maintenance

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 423
information or any time the spare
tire is handled due to service of
other components.
Correctly Stored
Incorrectly Stored
8. Reinstall the spare tire lock.
9. Reinstall the hoist shaft access cover.
Storing the Tools
To store the tools:
1. Return the tools (wheel wrench, jack handle, and jack handle
extensions) to the tool bag. Use the
velcro straps to secure the tool bag
under the load floor in the
cargo area.
2. Position the jack and wheel blocks in the driver side trim panel over
the wheelhouse. 3. Turn the jack knob clockwise until
the jack is secured tight in the
mounting bracket. Be sure to
position the holes in the base of
the jack onto the pin in the
mounting bracket.
4. Close the trim panel door.
Storing a Flat Tire Inside of the
Vehicle
If the vehicle has 275/60R20 or 275/
50R22 size tires, the flat tire must be
stored inside of the vehicle in the
cargo area using the flat tire secure
strap inside the glove box. 1. Store the tools. See “Storing the
Tools ”earlier in this section.
2. The third row seat must be folded down to provide sufficient space to
store the flat tire. If the third row
seat cannot be folded down, the
flat tire cannot be stored and must
be left in a safe location, to be
picked up at a later time.
3. Once there is sufficient space in the rear of the vehicle, lift the flat
tire and place it on top of the load
floor, with the valve stem
pointed up.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
424 VEHICLE CARE
4. Remove the flat tire secure strapfrom the glove box and place the
loop end of the strap through the
cargo tie-down. Place the hook end
of the strap through the loop and
pull it until the strap is fastened
securely to the tie-down.5. Route the hook end of the strapthrough the wheel, as shown.
6. Attach the hook to the other cargo tie-down in the rear of the vehicle.
7. Tighten the strap.
Full-Size Spare Tire
If this vehicle came with a full-size
spare tire, it was fully inflated when
new, however, it can lose air over
time. Check the inflation pressure
regularly. See Tire Pressure0400 and
Vehicle Load Limits 0240 for
information regarding proper tire
inflation and loading the vehicle. For instructions on how to remove, install,
or store a spare tire, see
Tire Changing
0 413.
If equipped with a temporary use
full-size spare tire, it is indicated on
the tire sidewall. See Tire Sidewall
Labeling 0395. This spare tire should
not be driven on over 112 km/h
(70 mph), or 88 km/h (55 mph) when
pulling a trailer, at the proper
inflation pressure. Repair and replace
the road tire as soon as it is
convenient, and stow the spare tire for
future use.
Caution
If the vehicle has four-wheel drive
and a different size spare tire is
installed, do not drive in four-wheel
drive until the flat tire is repaired
and/or replaced. The vehicle could
be damaged and the repairs would
not be covered by the warranty.
Never use four-wheel drive when a
different size spare tire is installed
on the vehicle.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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7. Connect one end of the redpositive (+) cable to the remote
positive (+) terminal of the vehicle
with the discharged battery.
8. Do not let the other end touch metal. Connect it to the positive (+)
terminal of the good battery. Use a
remote positive (+) terminal if the
vehicle has one.
9. Connect one end of the black negative (−) cable to the negative
(−) terminal of the good battery.
Use a remote negative (−) terminal
if the vehicle has one.
Do not let the other end touch
anything until the next step.
10. Connect the other end of the negative (−) cable to the remote
negative (−) terminal to the
discharged battery.
11. Start the vehicle with the good battery and run the engine for a
while.
12. Try to start the vehicle that had the dead battery. If it will not start
after a few tries, it probably needs
service.Caution
If the jumper cables are connected
or removed in the wrong order,
electrical shorting may occur and
damage the vehicle. The repairs
would not be covered by the vehicle
warranty. Always connect and
remove the jumper cables in the
correct order, making sure that the
cables do not touch each other or
other metal.
Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
After starting the disabled vehicle and
removing the jumper cables, allow it
to idle for several minutes.
Towing the Vehicle
Caution
Incorrectly towing a disabled
vehicle may cause damage. The
damage would not be covered by
the vehicle warranty. Do not lash or (Continued)
Caution (Continued)
hook to suspension components.
Use the proper straps around the
tires to secure the vehicle. Do not
drag a locked wheel/tire. Use tire
skates or dollies under any locked
wheel/tire while loading the vehicle.
Do not use a sling type lift to tow
the vehicle. This could damage the
vehicle.
Caution
Improper use of the tow eye can
damage the vehicle. If equipped, use
the tow eye to load a disabled
vehicle onto a flatbed tow truck
from a flat road surface, or to move
the vehicle a short distance. Use
caution and low speeds. The
transmission must be
in (N) Neutral when moving the
vehicle.
GM recommends a flatbed tow truck
to transport a disabled vehicle. Use
ramps to help reduce approach angles,
if necessary. A towed vehicle should