2018 CADILLAC XTS warning light

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
VEHICLE CARE 281
Use this rotation pattern when
rotating the tires.
Do not include the spare tire in
the tire rotation.
Adjust the front and rear tires to
the recommended inflation
pressure on the Tire and Loading
Information label after the tires
have been rotated.
SeeTire Pressure 0274 and Vehicle
Load Limits 0176.
Reset the Tire Pressure Monitor
System. See Tire Pressure Monitor
Operation 0277. Check that all wheel nuts are
properly tightened. See
“Wheel
Nut Torque ”under Capacities and
Specifications 0331.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any rust
or dirt from places where the wheel
attaches to the vehicle. In an
emergency, a cloth or a paper towel
can be used; however, use a scraper
or wire brush later to remove all
rust or dirt.
Lightly coat the center of the
wheel hub with wheel bearing
grease after a wheel change or tire
rotation to prevent corrosion or
rust build-up. Do not get grease
on the flat wheel mounting
surface or on the wheel nuts or
bolts.
When It Is Time for New
Tires
Factors such as maintenance,
temperatures, driving speeds, vehicle
loading, and road conditions affect the
wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when the
tires have only 1.6 mm (1/16 in) or
less of tread remaining.
See Tire Inspection 0280 and Tire
Rotation 0280.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
284 VEHICLE CARE
Warning (Continued)
the chance of a crash and serious
injury. Only use GM specific wheel
and tire systems developed for the
vehicle, and have them properly
installed by a GM certified
technician.
See Buying New Tires 0282 and
Accessories and Modifications 0234.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in the
United States. The grades are
molded on the sidewalls of most
passenger car tires. The Uniform
Tire Quality Grading (UTQG) system does not apply to deep
tread, winter tires, compact spare
tires, tires with nominal rim
diameters of 10 to 12 inches
(25 to 30 cm), or to some
limited-production tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they must
also conform to federal safety
requirements and additional
General Motors Tire Performance
Criteria (TPC) standards.
Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test course.
For example, a tire graded
150 would wear one and one-half
(1½) times as well on the
government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences
in road characteristics and
climate.
Traction
The traction grades, from highest
to lowest, are AA, A, B, and C.
Those grades represent the tire's
ability to stop on wet pavement as
measured under controlled
conditions on specified

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
VEHICLE CARE 285
government test surfaces of
asphalt and concrete. A tire
marked C may have poor traction
performance. Warning: The
traction grade assigned to this tire
is based on straight-ahead braking
traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction
characteristics.
Temperature
The temperature grades are A (the
highest), B, and C, representing
the tire's resistance to the
generation of heat and its ability
to dissipate heat when tested
under controlled conditions on a
specified indoor laboratory test
wheel. Sustained high temperature
can cause the material of the tire
to degenerate and reduce tire life,
and excessive temperature can
lead to sudden tire failure. The
grade C corresponds to a level of
performance which all passenger
car tires must meet under theFederal Motor Safety Standard
No. 109. Grades B and A represent
higher levels of performance on
the laboratory test wheel than the
minimum required by law.
Warning: The temperature grade
for this tire is established for a tire
that is properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.
Wheel Alignment and Tire
Balance
The tires and wheels were aligned and
balanced at the factory to provide the
longest tire life and best overall
performance. Adjustments to wheel
alignment and tire balancing are not
necessary on a regular basis. Consider
an alignment check if there is unusual
tire wear or the vehicle is significantly
pulling to one side or the other. Some
slight pull to the left or right,
depending on the crown of the road
and/or other road surface variations such as troughs or ruts, is normal.
If the vehicle is vibrating when driving
on a smooth road, the tires and
wheels may need to be rebalanced.
See your dealer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts, and wheel nuts
should be replaced. If the wheel leaks
air, replace it. Some aluminum wheels
can be repaired. See your dealer if any
of these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the same
load-carrying capacity, diameter,
width, offset, and be mounted the
same way as the one it replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor System
(TPMS) sensors with new GM original
equipment parts.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
VEHICLE CARE 293
1. Selector Switch (Sealant/Airor Air Only)
2. On/Off Button
3. Pressure Gauge 4. Pressure Deflation Button
5. Tire Sealant Canister
6. Sealant/Air Hose (Clear)
7. Air Only Hose (Black)
8. Power Plug
9. Canister Release Button
(Under Sealant/Air 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. See Hazard Warning
Flashers 0155.
See If a Tire Goes Flat 0286 for other
important safety warnings.
1. Remove the tire sealant and compressor kit from its storage
location. See Storing the Tire
Sealant and Compressor Kit 0295.
2. Unwrap the air only hose (7) and the power plug (8).
3. Place the kit on the ground. Make sure the tire valve stem is
positioned close to the ground so
the hose will reach it.
4. Remove the tire valve stem cap from the flat tire by turning it
counterclockwise. 5. Attach the air only hose (7) onto
the tire valve stem by turning it
clockwise until it is tight.
6. Plug the power plug (8) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See Power Outlets 0113.
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.
8. Press and turn the selector switch (1) clockwise to the Air
Only position.
9. Press the on/off button (2) to turn the compressor on.
The compressor will inflate the
tire with air only.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
VEHICLE CARE 303
4. Turn the ignition off and switchoff all lights and accessories in
both vehicles, except the hazard
warning flashers if needed.
{Warning
An electric fan can start up even
when the engine is not running and
can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Using a match near a battery can
cause battery gas to explode. People
have been hurt doing this, and
some have been blinded. Use a
flashlight if you need more light.
Battery fluid contains acid that can
burn you. Do not get it on you.
If you accidentally get it in your
eyes or on your skin, flush the place
with water and get medical help
immediately.
{Warning
Fans or other moving engine parts
can injure you badly. Keep your
hands away from moving parts
once the engine is running.
5. Connect one end of the red positive (+) cable to the jump
start remote positive (+) terminal
for the discharged battery.
6. Connect the other end of the red positive (+) cable to the
positive (+) terminal of the good
battery.
7. Connect one end of the black negative (–) cable to the negative
(–) terminal of the good battery.
8. Connect the other end of the black negative (–) cable to the
remote negative (–) post for the
discharged battery.
9. Start the engine in the vehicle with the good battery and run
the engine at idle speed for at
least four minutes. 10. 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.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
358 INDEX
IndexA
Accessories and Modifications . . . . . 234
Accessory Power . . . . . . . . . . . . . . . . . . . . 185
Adaptive Cruise Control . . . . . . . . . . . . 198
Add-On Electrical Equipment . . . . . . 230
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . . . . . 57
Thigh Support . . . . . . . . . . . . . . . . . . . . . . 58
Air Cleaner/Filter, Engine . . . . . . . . . . 243
Air Conditioning . . . . . . . . . . . . . . .160, 165
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . . . . . 167
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
How Does an Airbag Restrain? . . . . . 79
Passenger Sensing System . . . . . . . . . 81
What Makes an Airbag Inflate? . . . . 79
What Will You See after anAirbag Inflates? . . . . . . . . . . . . . . . . . . . 80
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Where Are the Airbags? . . . . . . . . . . . . 76 Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Passenger Status Indicator . . . . . . . 126
Readiness Light . . . . . . . . . . . . . . . . . . . 126
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
System Check . . . . . . . . . . . . . . . . . . . . . . . 75
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . 42
Alert
Lane Change . . . . . . . . . . . . . . . . . . . . . . 217
Side Blind Zone (SBZA) . . . . . . . . . . 217
All-Season Tires . . . . . . . . . . . . . . . . . . . . . 268
All-Wheel Drive . . . . . . . . . . . . . . . .190, 254
Antilock Brake System (ABS) . . . . . . 191 Warning Light . . . . . . . . . . . . . . . . . . . . 131
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Armrest
Rear Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Armrest Storage . . . . . . . . . . . . . . . . . . . . . 107
Assistance Systems for Driving . . . . 213
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . 207
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . . 46

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
INDEX 359
Automatic (cont'd)Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Forward Braking . . . . . . . . . . . . . . . . . . 215
Headlamp System . . . . . . . . . . . . . . . . 154
Level Control . . . . . . . . . . . . . . . . . . . . . . 195
Transmission . . . . . . . . . . . . . . . . . . . . . . 188
Transmission Fluid . . . . . . . . . . . . . . . 243
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . 190
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Power Protection . . . . . . . . . . . . . . . . . . 158
Battery - North America . . . . . .254, 301
Blade Replacement, Wiper . . . . . . . . . 255
Boost Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 123
Brake Parking, Electric . . . . . . . . . . . . . . . . . . 191
System Warning Light . . . . . . . . . . . . 129
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Braking (cont'd)
Automatic Forward . . . . . . . . . . . . . . . 215
Break-In, New Vehicle . . . . . . . . . . . . . . 180
Bulb Replacement Back-up Lamps . . . . . . . . . . . . . . . . . . . 258
Headlamp Aiming . . . . . . . . . . . . . . . . 258
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . 258
License Plate Lamps . . . . . . . . . . . . . . 259
Buying New Tires . . . . . . . . . . . . . . . . . . . 282
C
Cadillac Premium Care
Maintenance . . . . . . . . . . . . . . . . . . . . . . 317
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 113
California
Fuel Requirements . . . . . . . . . . . . . . . . 223
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 234
California Proposition
65 Warning . . . . . . . . . . . . .233, 254, 301, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 2
Capacities and Specifications . . . . . . 331
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 187
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Winter Driving . . . . . . . . . . . . . . . . . . . . 175 Cargo
Management System . . . . . . . . . . . . . 109
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . 108
Caution, Danger, and Warning . . . . . . . . 3
Center Console Storage . . . . . . . . . . . . . 107
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 286
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Charging System Light . . . . . . . . . . . . . 127
Check Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 128
Child Restraints Infants and Young Children . . . . . . . . 89
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Older Children . . . . . . . . . . . . . . . . . . . . . . 87
Securing . . . . . . . . . . . . . . . . . . . . . . 100, 102
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . 116
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 260
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . 307
Interior Care . . . . . . . . . . . . . . . . . . . . . . 311
Climate Control Systems
Dual Automatic . . . . . . . . . . . . . . . . . . . 160
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
360 INDEX
Cluster, Instrument . . . . . . . . . . . . . . . . . 118
Collision Damage Repair . . . . . . . . . . . 341
Compact Spare Tire . . . . . . . . . . . . . . . . . 299
CompartmentsStorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Compressor Kit, Tire Sealant . . . . . . . 288
Connections OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Control Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Control of a Vehicle . . . . . . . . . . . . . . . . 171
Convenience Net . . . . . . . . . . . . . . . . . . . . 109
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 44
Coolant Engine Temperature Gauge . . . . . . 124
Engine Temperature WarningLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Cooling . . . . . . . . . . . . . . . . . . . . . . . . .160, 165
Cooling System . . . . . . . . . . . . . . . . . . . . . 245
Cornering Lamps . . . . . . . . . . . . . . . . . . . 156
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 156
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Cover Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 196 Cruise Control (cont'd)
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Cruise Control, Adaptive . . . . . . . . . . . 198
Customer Assistance . . . . . . . . . . . . . . . 336 Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Text Telephone (TTY) Users . . . . . 336
Customer Information Service Publications OrderingInformation . . . . . . . . . . . . . . . . . . . . . . 343
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 334
D
Damage Repair, Collision . . . . . . . . . . . 341
Danger, Warning, and Caution . . . . . . . . 3
Data CollectionInfotainment System . . . . . . . . . . . . . 346
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Data Recorders, Event . . . . . . . . . . . . . . 345
Daytime Running Lamps (DRL) . . . 154
Defensive Driving . . . . . . . . . . . . . . . . . . . 171
Delayed Locking . . . . . . . . . . . . . . . . . . . . . 38
Diagnostics OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Distracted Driving . . . . . . . . . . . . . . . . . . 170
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 156
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 136 Door (cont'd)
Delayed Locking . . . . . . . . . . . . . . . . . . . . 38
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . 38
Rear Seat Pass-Through . . . . . . . . . . . . 68
Drive Belt Routing, Engine . . . . . . . . . 333
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . 190, 254
Driver Assistance Systems . . . . . . . . . 206
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 136
Driving Assistance Systems . . . . . . . . . . . . . . . 213
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 226
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
For Better Fuel Economy . . . . . . . . . . . 26
Hill and Mountain Roads . . . . . . . . 174
If the Vehicle is Stuck . . . . . . . . . . . . 176
Loss of Control . . . . . . . . . . . . . . . . . . . . 173
Off-Road Recovery . . . . . . . . . . . . . . . . 173
Vehicle Load Limits . . . . . . . . . . . . . . 176
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 173
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 160