run flat CADILLAC XT4 2021 Owner's Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
DRIVING AND OPERATING 213
.Pass with caution.
.Keep windshield wiping equipment
in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper tread
depth. SeeTires0308.
.Turn off cruise control.
.Activate All-Wheel Drive (AWD)
mode. See Driver Mode Control
0 236.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving on
flat or rolling terrain. Tips include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the vehicle
on a long downhill slope can cause
brake overheating, can reduce brake
performance, and could result in a
loss of braking. Shift the
transmission to a lower gear to let
the engine assist the brakes on a
steep downhill slope.
{Warning
Coasting downhill in N (Neutral) or
with the ignition off is dangerous.
This can cause overheating of the
brakes and loss of steering assist.
Always have the engine running
and the vehicle in gear.
.Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the center line.
.Be alert on top of hills; something
could be in your lane (e.g., stalled
car, crash).
.Pay attention to special road signs
(e.g., falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
.Select All-Wheel Drive (AWD) Mode.
See Driver Mode Control 0236 and
All-Wheel Drive 0232.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and the
road creates less traction or grip, so
drive carefully. Wet ice can occur at
about 0 °C (32 °F) when freezing rain
begins to fall. Avoid driving on wet ice
or in freezing rain until roads can be
treated.
For Slippery Road Driving:
.Accelerate gently. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick.
.Turn on Traction Control. See
Traction Control/Electronic Stability
Control 0235.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
VEHICLE CARE 331
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 0226.
{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 0378. 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 XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
VEHICLE CARE 333
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 095.
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 0316.
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.
12. Press the on/off button (5) to turn the tire sealant and compressor
kit off.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
VEHICLE CARE 335
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 0132.
See If a Tire Goes Flat 0329 for other
important safety warnings.
1. Remove the compressor from its storage location. See Storing the
Tire Sealant and Compressor Kit
0 336.
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 095.
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.
8. Press the on/off button (5) to turn the tire sealant and compressor
kit on.
The compressor will inflate the tire
with air only.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
398 INDEX
Door (cont'd)Power Locks . . . . . . . . . . . . . . . . . . . . . . . . 18
Drive Belt Routing, Engine . . . . . . . . . 373
Drive Systems All-Wheel Drive . . . . . . . . . . . . . 232, 298
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Driver Assistance Systems . . . . . . . . . 248
Driver Behavior . . . . . . . . . . . . . . . . . . . . . 204
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 114
Driver Mode Control . . . . . . . . . . . . . . . . 236
Driver Mode Control Light . . . . . . . . . 111
Driving
Assistance Systems . . . . . . . . . . . . . . . 257
Better Fuel Economy . . . . . . . . . . . . . 205
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 271
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Environment . . . . . . . . . . . . . . . . . . . . . . 204
Hill and Mountain Roads . . . . . . . . 213
If the Vehicle is Stuck . . . . . . . . . . . . 214
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Loss of Control . . . . . . . . . . . . . . . . . . . . 208
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Off-Road Recovery . . . . . . . . . . . . . . . . 207
Vehicle Load Limits . . . . . . . . . . . . . . 215
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 212 Driving (cont'd)
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Driving the Vehicle . . . . . . . . . . . . . . . . . . . . 2
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 197
E
Electric Brake Boost . . . . . . . . . . . . . . . . 232
Electric Parking Brake . . . . . . . . . . . . . . 233
Electric Parking Brake Light . . . . . . . 107
Electrical Equipment, Add-On . . . . . 280
Electrical SystemEngine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Fuses and Circuit Breakers . . . . . . . 303
Instrument Panel Fuse Block . . . . 306
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 290
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 105
Compartment Overview . . . . . . . . . . 285
Coolant Temperature Gauge . . . . . 103
Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . 111
Cooling System . . . . . . . . . . . . . . . . . . . 291 Engine (cont'd)
Drive Belt Routing . . . . . . . . . . . . . . . . 373
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Oil Life System . . . . . . . . . . . . . . . . . . . . 288
Oil Pressure Light . . . . . . . . . . . . . . . . . 112
Overheating . . . . . . . . . . . . . . . . . . . . . . . 294
Power Messages . . . . . . . . . . . . . . . . . . 120
Running While Parked . . . . . . . . . . . 226
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine Air Filter Life System . . . . . . 289
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 134
Equipment, Towing . . . . . . . . . . . . . . . . . 277
Event Data Recorders . . . . . . . . . . . . . . 385
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 134
Extended Parking . . . . . . . . . . . . . . . . . . . 225
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 53
Exterior Lamp Controls . . . . . . . . . . . . 129
Exterior Lamps Off Reminder . . . . . . 131
Exterior Lighting Battery Saver . . . . 135
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 290
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 131
Flashers, Hazard Warning . . . . . . . . . . 132
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 337