2020 CADILLAC XT4 wiper size

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
VEHICLE CARE 241
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 242
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 242
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 243
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 243
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 243
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 246
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 247
Engine Oil Life System . . . . . . . . . . . 249
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Air Filter Life System . . . . 250
Engine Air Cleaner/Filter . . . . . . . . . 251
Cooling System . . . . . . . . . . . . . . . . . . . 252
Engine Overheating . . . . . . . . . . . . . . 255
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 256
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 258
Battery - North America . . . . . . . . . 259 All-Wheel Drive . . . . . . . . . . . . . . . . . . 260
Starter Switch Check . . . . . . . . . . . . . 260
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 260
Wiper Blade Replacement . . . . . . . 261
Windshield Replacement . . . . . . . . 262
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 262
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 263
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 264
LED Lighting . . . . . . . . . . . . . . . . . . . . . 264
Front Turn Signal Lamps . . . . . . . . 264
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 264
Electrical System
Electrical System Overload . . . . . . 265
Fuses and Circuit Breakers . . . . . . 265
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Instrument Panel Fuse Block . . . . 269
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
All-Season Tires . . . . . . . . . . . . . . . . . . 273
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 273
Summer Tires . . . . . . . . . . . . . . . . . . . . 273
Tire Sidewall Labeling . . . . . . . . . . . 274
Tire Designations . . . . . . . . . . . . . . . . . 276 Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 276
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 280
Tire Pressure Monitor System . . . 281
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 281
Tire Inspection . . . . . . . . . . . . . . . . . . . 285
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 286
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Buying New Tires . . . . . . . . . . . . . . . . 287
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Uniform Tire Quality Grading . . . 289
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Wheel Replacement . . . . . . . . . . . . . . 291
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 292
If a Tire Goes Flat . . . . . . . . . . . . . . . . 292
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 293
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 300
Tire Changing . . . . . . . . . . . . . . . . . . . . . 300
Compact Spare Tire . . . . . . . . . . . . . . 305
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 306

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
VEHICLE CARE 265
1. Remove the fasteners to removethe trailer hitch cover.
2. Access the lamp through the opening in the underbody.
3. Disconnect the electrical connector from the bulb
assembly.
4. Turn the bulb socket
counterclockwise and pull the
bulb straight out of the socket.
5. Replace the bulb and reverse Steps 1–4 to reinstall.
Electrical System
Electrical System Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is too
heavy, the circuit breaker opens and
closes, protecting the circuit until the
current load returns to normal or the
problem is fixed. This greatly reduces
the chance of circuit overload and fire
caused by electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one of
the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be borrowed.
Choose some feature of the vehicle
that is not needed to use and replace
it as soon as possible.
Headlamp Wiring
An electrical overload may cause the
lamps to go on and off, or in some
cases to remain off. Have the
headlamp wiring checked right away if
the lamps go on and off or remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected from
electrical overload, overload due to
heavy snow or ice may cause wiper
linkage damage. Always clear ice and
heavy snow from the windshield
before using the windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
SERVICE AND MAINTENANCE 323
Footnotes—Maintenance Schedule
Additional Required Services -
Normal
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0286.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter.
(3) Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(4) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0251. (5)
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate
the transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced.
(6) Or every five years, whichever
comes first. See Cooling System0252.
(7) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(8) Replace brake fluid every five
years. See Brake Fluid 0258.
(9) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0261.
(10) Or every 10 years, whichever
comes first. See Gas Strut(s)0262.
(11) Replace air conditioning
desiccant every seven years.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
SERVICE AND MAINTENANCE 325
Footnotes—Maintenance Schedule
Additional Required Services -
Severe
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0286.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter.
(3) Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(4) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0251. (5)
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate
the transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced.
(6) Or every five years, whichever
comes first. See Cooling System0252.
(7) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(8) Replace brake fluid every five
years. See Brake Fluid 0258.
(9) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0261.
(10) Or every 10 years, whichever
comes first. See Gas Strut(s)0262.
(11) Replace air conditioning
desiccant every seven years.Special Application
Services
. Severe Commercial Use Vehicles
Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care
0 310.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
370 INDEX
Vehicle (cont'd)Remote Start . . . . . . . . . . . . . . . . . . . . . . . . 15
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Speed Messages . . . . . . . . . . . . . . . . . . . 131
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Vehicle Ahead Indicator . . . . . . . . . . . . 119
Vehicle Care Storing the Tire Sealant andCompressor Kit . . . . . . . . . . . . . . . . . . 300
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 153
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
W
Warning Brake System Light . . . . . . . . . . . . . . . 117
Caution and Danger . . . . . . . . . . . . . . . . . 3
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . 143
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 256
Wheels
Alignment and Tire Balance . . . . . 291
Different Size . . . . . . . . . . . . . . . . . . . . . . 289
Replacement . . . . . . . . . . . . . . . . . . . . . . 291 When It Is Time for New Tires . . . . 287
Where to Put the Restraint . . . . . . . . . 77
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 262
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 100
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 273
Wiper Blade Replacement . . . . . . . . . . 261
Wipers Rear Washer . . . . . . . . . . . . . . . . . . . . . . 102
Wireless Charging . . . . . . . . . . . . . . . . . . 104