2021 CADILLAC XT5 Air compressor

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
292 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 293
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 293
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 293
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 294
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 294
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 296
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 299
Engine Oil Life System . . . . . . . . . . . 301
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Engine Air Filter Life System . . . . 302
Engine Air Cleaner/Filter . . . . . . . . . 303
Cooling System . . . . . . . . . . . . . . . . . . . 304
Engine Overheating . . . . . . . . . . . . . . 308
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 309
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 311
Battery - North America . . . . . . . . . 312
All-Wheel Drive . . . . . . . . . . . . . . . . . . 312 Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 313
Wiper Blade Replacement . . . . . . . 313
Windshield Replacement . . . . . . . . 314
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 314
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 315
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 315
LED Lighting . . . . . . . . . . . . . . . . . . . . . 315
Electrical System
Electrical System Overload . . . . . . 316
Fuses and Circuit Breakers . . . . . . 316
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Instrument Panel Fuse Block . . . . 320
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
All-Season Tires . . . . . . . . . . . . . . . . . . 325
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 326
Summer Tires . . . . . . . . . . . . . . . . . . . . 326
Tire Sidewall Labeling . . . . . . . . . . . 327
Tire Designations . . . . . . . . . . . . . . . . . 328
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . . . . . 329
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 331 Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . 333
Tire Pressure Monitor System . . . 334
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 335
Tire Inspection . . . . . . . . . . . . . . . . . . . 338
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 339
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Buying New Tires . . . . . . . . . . . . . . . . 341
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Uniform Tire Quality Grading . . . 342
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Wheel Replacement . . . . . . . . . . . . . . 344
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 344
If a Tire Goes Flat . . . . . . . . . . . . . . . . 345
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 347
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 352
Tire Changing . . . . . . . . . . . . . . . . . . . . . 353
Compact Spare Tire . . . . . . . . . . . . . . 358
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 359

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
346 VEHICLE CARE
Warning (Continued)
dealer or an authorized tire service
center repair or replace the flat tire
as soon as possible.
{Warning
Lifting a vehicle and getting under
it to do maintenance or repairs is
dangerous without the appropriate
safety equipment and training. If a
jack is provided with the vehicle, it
is designed only for changing a flat
tire. If it is used for anything else,
you or others could be badly injured
or killed if the vehicle slips off the
jack. If a jack is provided with the
vehicle, only use it for changing a
flat tire.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. See Hazard Warning
Flashers 0135.
{Warning
Changing a tire can be dangerous.
The vehicle can slip off the jack and
roll over or fall causing injury or
death. Find a level place to change
the tire. To help prevent the vehicle
from moving:
1. Set the parking brake firmly.
2. Put an automatic transmission in P (Park) or a manual
transmission in 1 (First) or
R (Reverse).
3. Turn off the engine and do not restart while the vehicle is
raised.
4. Do not allow passengers to remain in the vehicle.
5. Place wheel blocks, if equipped, on both sides of the tire at the
opposite corner of the tire
being changed.
This vehicle may come with a jack
and spare tire or a tire sealant and
compressor kit. To use the jacking
equipment to change a spare tire
safely, follow the instructions below. Then see
Tire Changing 0353. To use
the tire sealant and compressor kit,
see Tire Sealant and Compressor Kit
0 347.
When the vehicle has a flat tire (2),
use the following example as a guide
to assist you in the placement of
wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains
how to repair or change a tire.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
VEHICLE CARE 347
Tire Sealant and
Compressor Kit
{Warning
Idling a vehicle in an enclosed area
with poor ventilation is dangerous.
Engine exhaust may enter the
vehicle. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death. Never run the engine in an
enclosed area that has no fresh air
ventilation. For more information,
seeEngine Exhaust 0231.
{Warning
Overinflating a tire could cause the
tire to rupture and you or others
could be injured. Be sure to read
and follow the tire sealant and
compressor kit instructions and
inflate the tire to its recommended
pressure. Do not exceed the
recommended pressure.
{Warning
Storing the tire sealant and
compressor kit or other equipment
in the passenger compartment of
the vehicle could cause injury. In a
sudden stop or collision, loose
equipment could strike someone.
Store the tire sealant and
compressor kit in its original
location.
If this vehicle has a tire sealant and
compressor kit, there may not be a
spare tire or tire changing equipment,
and on some vehicles there may not
be a place to store a tire.
The tire sealant and compressor can
be used to temporarily seal punctures
up to 6 mm (0.25 in) in the tread area
of the tire. It can also be used to
inflate an underinflated tire.
If the tire has been separated from the
wheel, has damaged sidewalls, or has
a large puncture, the tire is too
severely damaged for the tire sealant
and compressor kit to be effective. See
Roadside Service 0396. Read and follow all of the tire sealant
and compressor kit instructions.
The kit includes:
1. Sealant Canister Inlet Valve
2. Sealant/Air Hose
3. Base of Sealant Canister
4. Tire Sealant Canister
5. On/Off Button
6. Slot on Top of Compressor
7. Pressure Deflation Button
8. Pressure Gauge

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
348 VEHICLE CARE
9. Power Plug
10.Air Only Hose
Tire Sealant
Read and follow the safe handling
instructions on the label adhered to
the tire sealant canister (4).
Check the tire sealant expiration date
on the tire sealant canister. The tire
sealant canister (4) should be replaced
before its expiration date.
Replacement tire sealant canisters are
available at your local dealer.
There is only enough sealant to seal
one tire. After usage, the tire sealant
canister must be replaced.
Using the Tire Sealant and
Compressor Kit to Temporarily
Seal and Inflate a
Punctured Tire
When using the tire sealant and
compressor kit during cold
temperatures, warm the kit in a
heated environment for five minutes.
This will help to inflate the tire faster.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the hazard
warning flashers. SeeHazard Warning
Flashers 0135.
See If a Tire Goes Flat 0345 for other
important safety warnings.
Do not remove any objects that have
penetrated the tire.
1. Remove the tire sealant canister (4) and compressor from its storage
location. See Storing the Tire Sealant
and Compressor Kit 0352.
2. Remove the air only hose (10) and the power plug (9) from the bottom
of the compressor.
3. Place the compressor on the ground near the flat tire.
4. Attach the air only hose (10) to thesealant canister inlet valve (1) by
turning it clockwise until tight.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
VEHICLE CARE 349
5. Slide the base of the tire sealantcanister (3) into the slot on the top
of the compressor (6) to hold it
upright.
Make sure the tire valve stem is
positioned close to the ground so
the hose will reach it.
6. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
7. Attach the sealant/air hose (2) tothe tire valve stem by turning it
clockwise until tight. 8. Plug the power plug (9) into the
accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets. See
Power Outlets 098.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a cigarette
lighter, use the cigarette lighter.
Do not pinch the power plug cord
in the door or window.
9. Start the vehicle. The vehicle must be running while using the air
compressor.
10. Press the on/off button (5) to turn the tire sealant and compressor
kit on.
The compressor will inject sealant
and air into the tire.
The pressure gauge (8) will initially
show a high pressure while the
compressor pushes the sealant into
the tire. Once the sealant is
completely dispersed into the tire,
the pressure will quickly drop and
start to rise again as the tire
inflates with air only. 11. Inflate the tire to the
recommended inflation pressure
using the pressure gauge (8). The
recommended inflation pressure
can be found on the Tire and
Loading Information label. See Tire
Pressure 0331.
The pressure gauge (8) may read
higher than the actual tire pressure
while the compressor is on. Turn
the compressor off to get an
accurate pressure reading. The
compressor may be turned on/off
until the correct pressure is
reached.
Caution
If the recommended pressure
cannot be reached after
approximately 25 minutes, the
vehicle should not be driven farther.
The tire is too severely damaged
and the tire sealant and compressor
kit cannot inflate the tire. Remove
the power plug from the accessory
power outlet and unscrew the
inflating hose from the tire valve.
See Roadside Service 0396.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
350 VEHICLE CARE
12. Press the on/off button (5) to turnthe tire sealant and compressor
kit off.
The tire is not sealed and will
continue to leak air until the
vehicle is driven and the sealant is
distributed in the tire. Therefore,
Steps 13–21 must be done
immediately after Step 12.
Be careful while handling the tire
sealant and compressor kit as it
could be warm after usage.
13. Unplug the power plug (9) from the accessory power outlet in the
vehicle.
14. Turn the sealant/air hose (2) counterclockwise to remove it from
the tire valve stem.
15. Replace the tire valve stem cap.
16. Remove the tire sealant canister (4) from the slot on top of the
compressor (6).
17. Turn the air only hose (10) counterclockwise to remove it from
the tire sealant canister inlet
valve (1). 18. Turn the sealant/air hose (2)
clockwise onto the sealant canister
inlet valve (1) to prevent sealant
leakage.
19. Return the air only hose (10) and power plug (9) back to their
original storage location.
20. If the flat tire was able to inflate tothe recommended inflation
pressure, remove the maximum
speed label from the sealant
canister and place it in a highly
visible location.
Do not exceed the speed on this
label until the damaged tire is
repaired or replaced.
21. Return the equipment to its original storage location in the
vehicle.
22. Immediately drive the vehicle 8 km (5 mi) to distribute the sealant in
the tire. 23. Stop at a safe location and check
the tire pressure. Refer to Steps 1–
10 under “Using the Tire Sealant
and Compressor Kit without
Sealant to Inflate a Tire (Not
Punctured).”
If the tire pressure has fallen more
than 68 kPa (10 psi) below the
recommended inflation pressure,
stop driving the vehicle. The tire is
too severely damaged and the tire
sealant cannot seal the tire. See
Roadside Service 0396.
If the tire pressure has not dropped
more than 68 kPa (10 psi) from the
recommended inflation pressure,
inflate the tire to the
recommended inflation pressure.
24. Wipe off any sealant from the wheel, tire, or vehicle.
25. Dispose of the used tire sealant canister (4) at a local dealer or in
accordance with local state codes
and practices.
26. Replace it with a new canister available from your dealer.
27. After temporarily sealing a tire using the tire sealant and
compressor kit, take the vehicle to

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
VEHICLE CARE 351
an authorized dealer within 161 km
(100 mi) of driving to have the tire
repaired or replaced.
Using the Tire Sealant and
Compressor Kit without Sealant
to Inflate a Tire (Not Punctured)
The kit includes:
1. Sealant Canister Inlet Valve
2. Sealant/Air Hose
3. Base of Sealant Canister
4. Tire Sealant Canister
5. On/Off Button
6. Slot on Top of Compressor
7. Pressure Deflation Button
8. Pressure Gauge
9. Power Plug
10.Air Only Hose
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the hazard
warning flashers. SeeHazard Warning
Flashers 0135.
See If a Tire Goes Flat 0345 for other
important safety warnings.
1. Remove the compressor from its storage location. See Storing the
Tire Sealant and Compressor Kit
0 352.
2. Remove the air only hose (10) and the power plug (9) from the bottom
of the compressor. 3. Place the compressor on the
ground near the flat tire.
Make sure the tire valve stem is
positioned close to the ground so
the hose will reach it.
4. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the air only hose (10) to the tire valve stem by turning it
clockwise until tight.
6. Plug the power plug (9) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets. See
Power Outlets 098.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a cigarette
lighter, use the cigarette lighter.
Do not pinch the power plug cord
in the door or window.
7. Start the vehicle. The vehicle must be running while using the air
compressor.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
352 VEHICLE CARE
8. Press the on/off button (5) to turnthe tire sealant and compressor
kit on.
The compressor will inflate the tire
with air only.
9. Inflate the tire to the recommended inflation pressure
using the pressure gauge (8). The
recommended inflation pressure
can be found on the Tire and
Loading Information label. See Tire
Pressure 0331.
The pressure gauge (8) may read
higher than the actual tire pressure
while the compressor is on. Turn
the compressor off to get an
accurate pressure reading. The
compressor may be turned on/off
until the correct pressure is
reached.
Caution
If the recommended pressure
cannot be reached after
approximately 25 minutes, the
vehicle should not be driven farther.
The tire is too severely damaged
and the tire sealant and compressor (Continued)
Caution (Continued)
kit cannot inflate the tire. Remove
the power plug from the accessory
power outlet and unscrew the
inflating hose from the tire valve.
SeeRoadside Service 0396.
10. Press the on/off button (5) to turn the tire sealant and compressor
kit off.
Be careful while handling the
compressor as it could be warm
after usage.
11. Unplug the power plug (9) from the accessory power outlet in the
vehicle.
12. Turn the air only hose (10) counterclockwise to remove it from
the tire valve stem.
13. Replace the tire valve stem cap.
14. Return the air only hose (10) and power plug (9) back to their
original storage location.
15. Return the equipment to its original storage location in the
vehicle. The tire sealant and compressor kit
has accessory adapters located in a
compartment on the bottom of its
housing that can be used to inflate air
mattresses, balls, etc.
Storing the Tire Sealant
and Compressor Kit
The tire sealant and compressor kit is
in a bag in the rear compartment
storage area.
1. Open the liftgate.
2. Remove the cargo management system divider. See Cargo
Management System 090.
3. Lift the load floor. Use the hook to hold the load floor open. See Rear
Storage 087.