check engine CADILLAC ESCALADE 2021 Owner's Guide

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
360 DRIVING AND OPERATING
If the setting is turned off for a given
Trailer Profile, the smartphone will
not receive this security notification
even if the Trailer Profile is active.
Tow/Haul Mode Reminder
This is a reminder to turn on the Tow/
Haul Mode when towing a trailer. See
Tow/Haul Mode0256.
Touch Tow/Haul Mode Reminder in
Settings to view the Tow/Haul Mode
Reminder settings page. These alerts
are based on the Trailer Profile, so the
settings for each Trailer Profile must
be turned on or off. Touch a profile to
view more information or to adjust
the setting for that profile.
This setting will default to OFF for
each Trailer Profile, including the
Guest Trailer Profile.
If Tow/Haul Mode is off and this
setting is on for a Trailer Profile, each
time the ignition is turned on a
reminder will appear to turn on Tow/
Haul Mode when the Trailer Profile is
active. If Tow/Haul Mode is on and this
setting is on for a Trailer Profile, the
reminder will not appear when the
Trailer Profile is active.
Trailer Length Indicator
Touch Trailer Length Indicator to view
the Trailer Length Indicator settings
page. If this setting is ON a guideline
is displayed in the side mirror camera
view to indicate the rear of the
attached trailer. If this setting is OFF
the guideline will not be displayed.
This setting will default to OFF if the
trailer length indicator feature is not
set up. See "Towing Assistance" for
details on the setup.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. See
Malfunction Indicator
Lamp (Check Engine Light) 0122.
A device connected to the DLC —
such as an aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle systems.
This could affect vehicle operation
and cause a crash. Such devices
may also access information stored
in the vehicle’s systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and would (Continued)

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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362 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 363
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 363
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 363
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 364
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 364
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 366
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 367
Engine Oil Life System . . . . . . . . . . . 369
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Engine Air Filter Life System . . . . 371
Engine Air Cleaner/Filter . . . . . . . . . 371
Cooling System . . . . . . . . . . . . . . . . . . . 372
Engine Overheating . . . . . . . . . . . . . . 375
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . 376
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 377
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Brake Pad Life System . . . . . . . . . . . 378
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 379 Battery - North America . . . . . . . . . 380
Four-Wheel Drive . . . . . . . . . . . . . . . . 380
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . 381
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . 381
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 381
Wiper Blade Replacement . . . . . . . 382
Glass Replacement . . . . . . . . . . . . . . . 383
Windshield Replacement . . . . . . . . 383
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 383
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 384
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 384
LED Lighting . . . . . . . . . . . . . . . . . . . . . 384
Electrical System
Electrical System Overload . . . . . . 385
Fuses and Circuit Breakers . . . . . . 385
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386
Instrument Panel Fuse Block . . . . 389
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
All-Season Tires . . . . . . . . . . . . . . . . . . 394
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 394
Low-Profile Tires . . . . . . . . . . . . . . . . . 395 All-Terrain Tires . . . . . . . . . . . . . . . . . . 395
Tire Sidewall Labeling . . . . . . . . . . . 395
Tire Designations . . . . . . . . . . . . . . . . . 397
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 397
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 400
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 401
Tire Pressure Monitor System . . . 402
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 403
Tire Inspection . . . . . . . . . . . . . . . . . . . 406
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 406
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
Buying New Tires . . . . . . . . . . . . . . . . 408
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Uniform Tire Quality Grading . . . 410
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Wheel Replacement . . . . . . . . . . . . . . 411
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 412
If a Tire Goes Flat . . . . . . . . . . . . . . . . 412
Tire Changing . . . . . . . . . . . . . . . . . . . . . 413
Full-Size Spare Tire . . . . . . . . . . . . . . 424Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 425

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 365
Hood
{Warning
For vehicles with auto engine stop/
start, turn the vehicle off before
opening the hood. If the vehicle is
on, the engine will start when the
hood is opened. You or others could
be injured.
{Warning
Components under the hood can
get hot from running the engine. To
help avoid the risk of burning
unprotected skin, never touch these
components until they have cooled,
and always use a glove or towel to
avoid direct skin contact.
Clear any snow from the hood before
opening.
To open the hood: 1. Pull the hood release lever with the
isymbol. It is on the lower left
side of the instrument panel.
2. Go to the front of the vehicle and locate the secondary release lever
under the front center of the hood.
Push the secondary hood release
lever to the right to release.
3. After you have partially lifted the hood, the gas strut system will
automatically lift the hood and
hold it in the fully open position.
To close the hood: 1. Before closing the hood, be sure all filler caps are on properly, and all
tools are removed.
2. Pull the hood down until the strut system is no longer holding up
the hood. 3. Allow the hood to fall. Check to
make sure the hood is latched
completely. Repeat this process
with additional force if necessary.
{Warning
Do not drive the vehicle if the hood
is not latched completely. The hood
could open fully, block your vision,
and cause a crash. You or others
could be injured. Always close the
hood completely before driving.
The Driver Information Center (DIC)
will display a message if the hood is
not fully closed, and the vehicle is
moving. Stop and turn off the vehicle,
check the hood for obstructions, and
close the hood again. Check to see if
the message still appears on the DIC.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 367
1. Remote Negative (–) Location. SeeJump Starting - North America
0425.
2. Positive (+) Terminal (Under Cover). See Jump Starting - North America
0 425.
3. Battery - North America 0380.
4. Engine Compartment Fuse Block
0386.
5. Engine Oil Dipstick. See “Checking
Engine Oil” underEngine Oil 0367.
6. Engine Cooling Fans (Out of View). See Cooling System 0372.
7. Engine Oil Fill Cap. See “When to
Add Engine Oil” underEngine Oil
0 367.
8. Coolant Surge Tank and Pressure Cap. See Cooling System 0372.
9. Engine Air Cleaner/Filter 0371.
10. Brake Fluid Reservoir. See Brake
Fluid 0379.
11. Windshield Washer Fluid Reservoir. See “Adding Washer Fluid” under
Washer Fluid 0377.Engine Oil
For diesel engine vehicles, see “Engine
Oil” in the Duramax diesel
supplement.
To ensure proper engine performance
and long life, careful attention must
be paid to engine oil. Following these
simple, but important steps will help
protect your investment:
.Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil” in
this section.
.Check the engine oil level regularly
and maintain the proper oil level.
See “Checking Engine Oil” and
“When to Add Engine Oil” in this
section.
.Change the engine oil at the
appropriate time. See Engine Oil Life
System 0369.
.Always dispose of engine oil
properly. See “What to Do with Used
Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially prior
to a long trip. The engine oil dipstick
handle is a loop. See Engine
Compartment Overview 0366 for the
location.
{Warning
The engine oil dipstick handle may
be hot; it could burn you. Use a
towel or glove to touch the dipstick
handle.
If a low oil Driver Information Center
(DIC) message displays, check the oil
level.
Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the
engine oil level after the engine has
been off for at least two hours.
Checking the engine oil level on
steep grades or too soon after
engine shutoff can result in
incorrect readings. Accuracy

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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368 VEHICLE CARE
improves when checking a cold
engine prior to starting. Remove the
dipstick and check the level.
.If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is warm,
or at least 30 minutes if the engine
is not warm. Pull out the dipstick,
wipe it with a clean paper towel or
cloth, then push it back in all the
way. Remove it again, keeping the
tip down, and check the level.
When to Add Engine Oil
If the oil is below the cross-hatched
area at the tip of the dipstick and the
engine has been off for at least
15 minutes, add 1 L (1 qt) of the
recommended oil and then recheck
the level. See“Selecting the Right
Engine Oil” later in this section for an explanation of what kind of oil to use.
For engine oil crankcase capacity, see
Capacities and Specifications
0455.
Caution
Do not add too much oil. Oil levels
above or below the acceptable
operating range shown on the
dipstick are harmful to the engine.
If the oil level is above the
operating range (i.e., the engine has
so much oil that the oil level gets
above the cross-hatched area that
shows the proper operating range),
the engine could be damaged. Drain
the excess oil or limit driving of the
vehicle, and seek a service
professional to remove the
excess oil.
See Engine Compartment Overview
0 366 for the location of the engine oil
fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil depends
on both the proper oil specification
and viscosity grade. See Recommended
Fluids and Lubricants 0451.
Specification
Use full synthetic engine oils that
meet the dexos1 specification. Engine
oils that have been approved by GM
as meeting the dexos1 specification
are marked with the dexos1
approved logo.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.

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Viscosity Grade
Use SAE 0W-20 viscosity grade
engine oil.
When selecting an oil of the
appropriate viscosity grade, it is
recommended to select an oil of the
correct specification. See
“Specification”earlier in this section.
Engine Oil Additives/Engine Oil
Flushes
Do not add anything to the oil. The
recommended oils meeting the dexos1
specification are all that is needed for
good performance and engine
protection.
Engine oil system flushes are not
recommended and could cause engine
damage not covered by the vehicle
warranty.
What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your own
oil, be sure to drain all the oil from
the filter before disposal. Never
dispose of oil by putting it in the trash
or pouring it on the ground, into
sewers, or into streams or bodies of
water. Recycle it by taking it to a place
that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based on a
combination of factors which include
engine revolutions, engine
temperature, and miles driven. Based
on driving conditions, the mileage at
which an oil change is indicated can
vary considerably. For the oil life
system to work properly, the system
must be reset every time the oil is
changed.
When the system has calculated that
oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE OIL
SOON message comes on. Change the
oil as soon as possible within the next
1 000 km (600 mi). It is possible that,
if driving under the best conditions,
the oil life system might indicate that
an oil change is not necessary for up
to a year. The engine oil and filter
must be changed at least once a year
and at this time the system must be
reset. Your dealer has trained service
people who will perform this work and
reset the system. It is also important
to check the oil regularly over the
course of an oil drain interval and
keep it at the proper level.
If the system is ever reset accidentally,
the oil must be changed at 5 000 km
(3,000 mi) since the last oil change.
Remember to reset the oil life system
whenever the oil is changed.

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How to Reset the Engine Oil Life
System
Reset the system whenever the engine
oil is changed so that the system can
calculate the next engine oil change.
To reset the system:1. Using the vehicle information screen controls on the right side of
the instrument cluster, display OIL
LIFE on the screen. See Vehicle
Information 0134. When remaining
oil life is low, the CHANGE
ENGINE OIL SOON message will
appear on the display.
2. Touch RESET on the screen to clear the CHANGE ENGINE OIL
SOON message and reset the oil life
at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is changed.
It cannot be reset accurately until
the next oil change.
The oil life system can also be reset as
follows: 1. Display OIL LIFE on the vehicle information screen. See Vehicle
Information 0134. 2. Fully press and release the
accelerator pedal three times
within five seconds.
If the CHANGE ENGINE OIL SOON
message is not on, the system is
reset.
The system is reset when the
CHANGE ENGINE OIL SOON message
is off.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat the
procedure.
Automatic Transmission
Fluid
When to Check and Change
Automatic Transmission Fluid
If the vehicle has a diesel engine, see
the Duramax diesel supplement.
It is usually not necessary to check
the transmission fluid level. The only
reason for fluid loss is a transmission
leak or overheated transmission. This
vehicle is not equipped with a
transmission fluid level dipstick. There is a special procedure for
checking and changing the
transmission fluid in these vehicles.
Because this procedure is difficult,
this should be done at the dealer.
Contact the dealer for additional
information or the procedure can be
found in the service manual. See
Publication Ordering Information
0467.
Caution
Use of the incorrect automatic
transmission fluid may damage the
vehicle, and the damage may not be
covered by the vehicle warranty.
Always use the correct automatic
transmission fluid. See
Recommended Fluids and Lubricants
0451.
Change the fluid and filter at the
scheduled maintenance intervals
listed in Maintenance Schedule 0442.
Be sure to use the transmission fluid
listed in Recommended Fluids and
Lubricants 0451.

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VEHICLE CARE 371
Engine Air Filter Life
System
If equipped, this feature provides the
engine air filter’s remaining life and
best timing for a change. The timing
to change an engine air filter depends
on driving and environmental
conditions.
When to Change the Engine Air
Filter
When the Driver Information Center
(DIC) displays a message to replace
the engine air filter at the next oil
change, follow this timing.
When the DIC displays a message to
replace the engine air filter soon,
replace the engine air filter at the
earliest convenience.
The system must be reset after the
engine air filter is changed.
If the DIC displays a message to check
the engine air filter system, see your
dealer.
How to Reset the Engine Air
Filter Life System
To reset:1. Place the vehicle in P (Park).
2. Access the Air Filter Life screen from the Vehicle Information main
screen in the infotainment system.
See Vehicle Information 0134 for
instructions on navigating and
selecting items.
3. Touch Reset on the display screen.
4. Touch Yes to confirm the reset.
Engine Air Cleaner/Filter
If the vehicle has a diesel engine, see
the Duramax diesel supplement. The engine air cleaner/filter is on the
driver side of the engine
compartment. See
Engine Compartment
Overview 0366.
When to Inspect the Engine Air
Cleaner/Filter
If the vehicle is not equipped with the
engine air filter life system see
Maintenance Schedule 0442 for
intervals on inspecting and replacing
the engine air cleaner filter.
How to Inspect/Replace the
Engine Air Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/filter,
make sure that the engine air cleaner/
filter housing and nearby components
are free of dirt and debris. Do not
clean the engine air cleaner/filter or
components with water or
compressed air.
To inspect or replace the engine air
cleaner/filter:

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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{Warning
An underhood electric fan can start
up even when the engine is not
running and can cause injury. Keep
hands, clothing, and tools away
from any underhood electric fan.
{Warning
Do not touch heater, radiator, a/c
pipes or hoses, or other engine
parts. They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL engine coolant.
This coolant is designed to remain in
the vehicle for 5 years or 240 000 km
(150,000 mi), whichever occurs first.The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating, see
Engine Overheating
0375.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain
water or the wrong mixture, the
engine could get too hot but there
would not be an overheat warning.
The engine could catch fire and you
or others could be burned.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. This mixture:
.Gives freezing protection down to
−37 °C (−34 °F), outside temperature.
.Gives boiling protection up to
129 °C (265 °F), engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
Caution
Do not use anything other than a
mix of DEX-COOL coolant that
meets GM Standard GMW3420 and
clean, drinkable water. Anything
else can cause damage to the
engine cooling system and the
vehicle, which would not be covered
by the vehicle warranty.
Never dispose of engine coolant by
putting it in the trash, or by pouring it
on the ground, or into sewers,
streams, or bodies of water. Have the
coolant changed by an authorized
service center, familiar with legal
requirements regarding used coolant
disposal. This will help protect the
environment and your health.
Checking Coolant
The coolant surge tank is in the
engine compartment on the driver
side of the vehicle. See Engine
Compartment Overview 0366.
The vehicle must be on a level surface
when checking the coolant level.

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Check to see if coolant is visible in the
coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, wait until it cools down. The
coolant level should be at or above the
indicated mark. If it is not, there may
be a leak in the cooling system.
If coolant is visible but the coolant
level is not at or above the indicated
mark, see the following sections on
how to add coolant to the coolant
surge tank following.
How to Add Coolant to the
Coolant Surge Tank
If the vehicle has a diesel engine, see
“Cooling System”in the Duramax
diesel supplement for the proper
coolant fill procedure.
{Warning
Spilling coolant on hot engine parts
can burn you. Coolant contains
ethylene glycol and it will burn if
the engine parts are hot enough.
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain
water or the wrong mixture, the
engine could get too hot but there
would not be an overheat warning.
The engine could catch fire and you
or others could be burned.
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure cap,
even a little, can cause them to
come out at high speed and you
could be burned. Never turn the cap
when the cooling system, including
the pressure cap, is hot. Wait for
the cooling system and pressure
cap to cool.
Caution
Failure to follow the specific
coolant fill procedure could cause
the engine to overheat and could
cause system damage. If coolant is
not visible in the surge tank,
contact your dealer.
If no coolant is visible in the surge
tank, add coolant.