
Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
SERVICE AND MAINTENANCE 317
Cadillac Premium Care
Maintenance
This vehicle comes with Cadillac
Premium Care Maintenance. It is a
maintenance program that covers
select services, when scheduled in
accordance with the owner’s manual,
including:
.Oil changes based on the vehicle's
oil life monitor system.
. Tire rotation every 12 000 km
(7,500 mi).
. Passenger compartment air filter
replacement.
. Multi-point vehicle inspection
(MPVI) performed by a qualified
technician.
Cadillac requires that all Cadillac
Premium Care Maintenance services
be performed by a Cadillac authorized
service dealer.
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
. Check the engine oil level. See
Engine Oil 0240.
Once a Month
. Check the tire inflation pressures.
See Tire Pressure 0274.
. Inspect the tires for wear. See Tire
Inspection 0280.
. Check the windshield washer fluid
level. See Washer Fluid 0251.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the engine
oil life system may not indicate the
need for vehicle service for up to a
year. The engine oil and filter must be
changed at least once a year and the
oil life system must be reset. Your
trained dealer technician can perform
this work. If the engine oil life system is reset accidentally, service the
vehicle within 5 000 km/3,000 mi since
the last service. Reset the oil life
system when the oil is changed. See
Engine Oil Life System
0242.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the following
services. See Tire Rotation0280.
. Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system.
See Engine Oil 0240 and Engine Oil
Life System 0242.
. Check engine coolant level. See
Cooling System 0245.
. Check windshield washer fluid
level. See Washer Fluid 0251.
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0307. Replace worn or
damaged wiper blades. See Wiper
Blade Replacement 0255.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
SERVICE AND MAINTENANCE 319
Maintenance Schedule
Additional Required Services -
Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check
engine oil level and oil life percentage. Change
engine oil and filter, if needed.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
Replace engine air cleaner filter. (3)@@@
Replace spark plugs. Inspect ignition coils. (3.6L LFX
V6 engine)@
Replace spark plugs. Inspect ignition coils. (3.6L LF3
twin turbo V6 engine)@ @
Replace rear axle fluid, if equipped with limited-slip
differential.@@@
Replace rear axle fluid, except limited-slip
differential.@
Drain and fill engine cooling system. (4)@
Visually inspect accessory drive belts. (5)@
Replace brake fluid. (6)

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
SERVICE AND MAINTENANCE 321
Maintenance Schedule
Additional Required Services -
Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check
engine oil level and oil life percentage. Change
engine oil and filter, if needed.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
Replace engine air cleaner filter. (3)@@@
Change automatic transmission fluid.@@@
Replace spark plugs. Inspect ignition coils. (3.6L LFX
V6 engine)@
Replace spark plugs. Inspect ignition coils. (3.6L LF3
twin turbo V6 engine)@ @
Replace rear axle fluid, if equipped with limited-slip
differential.@@@
Replace rear axle fluid, except limited-slip
differential.@ @
Drain and fill engine cooling system. (4)@
Visually inspect accessory drive belts. (5)@
Replace brake fluid. (6)

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
324 SERVICE AND MAINTENANCE
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage. The
brake lamps need to be checked
periodically to ensure that they
light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include steering
wheel vibration, bounce/sway
while braking, longer stopping
distance, or uneven tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs of leaking, blown seals, or damage,
and can advise when service is
needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel, and
can reduce the risk of tire failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the tread
or sidewall; or a bulge or split in
the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also provide
tire/wheel balancing services to
ensure smooth vehicle operation
at all speeds. Your dealer sells and
services name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and protect the vehicle’s interior and
exterior, see
Interior Care 0311 and
Exterior Care 0307.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver optimal
wear and performance.
. Signs that the alignment may need
to be adjusted include pulling,
improper vehicle handling,
or unusual tire wear.
. Your dealer has the required
equipment to ensure proper wheel
alignment.
Windshield
For safety, appearance, and the best
viewing, keep the windshield clean
and clear.
. Signs of damage include scratches,
cracks, and chips.
. Trained dealer technicians can
inspect the windshield and
recommend proper replacement if
needed.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-11354412) -
2018 - crc - 11/16/17
CUSTOMER INFORMATION 339
.Battery Jump Start: Service to
jump start a dead battery.
. Trip Interruption Benefits and
Service: If your trip is interrupted
due to a warranty failure,
incidental expenses may be
reimbursed during the Powertrain
warranty period. Items considered
are hotel, meals, and rental car or
a vehicle being delivered back to
the customer, up to 500 miles.
Cadillac Technician Roadside
Service (U.S. Only)
Cadillac's exceptional Roadside Service
is more than an auto club or towing
service. It provides every Cadillac
owner in the United States with the
advantage of contacting a Cadillac
advisor and, where available, a
Cadillac trained dealer technician who
can provide on-site service.
A dealer technician will travel to your
location within a 30-mile radius of a
participating Cadillac dealership.
If beyond this radius, we will arrange
to have your car towed to the nearest
Cadillac dealership. Each technician
travels with a specially equipped service vehicle complete with the
necessary Cadillac parts and tools
required to handle most roadside
repairs.
Services Not Included in
Roadside Service
.
Impound towing caused by
violation of any laws
. Legal fines
. Mounting, dismounting,
or changing of snow tires, chains,
or other traction devices
Service is not provided if a vehicle is
in an area that is not accessible to the
service vehicle or is not a regularly
traveled or maintained public road,
which includes ice and winter roads.
Off-road use is not covered.
Services Specific to
Canadian-Purchased Vehicles
. Fuel delivery: Reimbursement is
up to 7 liters. Diesel fuel delivery
may be restricted. Propane and
other fuels are not provided
through this service. .
Lock-Out Service: Vehicle
registration is required.
. Trip Interruption Benefits and
Service: Pre-authorization, original
detailed receipts, and a copy of the
repair orders are required. Once
authorization has been received,
the Roadside Service advisor will
help you make arrangements and
explain how to receive payment.
Items considered are hotel, meals,
and rental car or a vehicle being
delivered back to the customer, up
to 800 km.
. Alternative Service: If assistance
cannot be provided right away, the
Roadside Service advisor may give
you permission to get local
emergency road service. You will
receive payment, up to $100, after
sending the original receipt to
Roadside Service. Mechanical
failures may be covered, however
any cost for parts and labor for
repairs not covered by the
warranty are the owner
responsibility.

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
INDEX 363
K
Keyless EntryRemote (RKE) System . . . . . . . . . . . . . . 28
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 269
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Daytime Running (DRL) . . . . . . . . . . 154
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Exterior Controls . . . . . . . . . . . . . . . . . . 152
Exterior Lamps Off Reminder . . . . 153
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
License Plate . . . . . . . . . . . . . . . . . . . . . . 259
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 128
On Reminder . . . . . . . . . . . . . . . . . . . . . . 135
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Lane Change Alert (LCA) . . . . . . . . . . . 217
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . . . . 219
Lane Departure Warning Light . . . . 131
Lane Keep Assist (LKA) . . . . . . . . . . . . 220
Lane Keep Assist Light . . . . . . . . . . . . . 131
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 70 LATCH System
Replacing Parts after a Crash . . . . 100
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . 94
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 258
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 195
Lighter, Cigarette . . . . . . . . . . . . . . . . . . . 116
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Illumination Control . . . . . . . . . . . . . . 156
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 126
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . 131
Brake System Warning . . . . . . . . . . . 129
Charging System . . . . . . . . . . . . . . . . . . 127
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 128
Cruise Control . . . . . . . . . . . . . . . . . . . . . 135
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Electric Parking Brake . . . . . . . . . . . . 130
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 133
Engine Oil Pressure . . . . . . . . . . . . . . . 134
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 154 Lights (cont'd)
High-Beam On . . . . . . . . . . . . . . . . . . . . 135
High/Low Beam Changer . . . . . . . . . 153
Lane Departure Warning . . . . . . . . . 131
Lane Keep Assist . . . . . . . . . . . . . . . . . . 131
Low Fuel Warning . . . . . . . . . . . . . . . . 134
Seat Belt Reminders . . . . . . . . . . . . . . 125
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Service Electric Parking Brake . . . 130
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 132
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 133
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . . . . . 133
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 132
Limited-Slip Rear Axle . . . . . . . . . . . . . 195
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . . . . . . 38
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Lockout Protection . . . . . . . . . . . . . . . . . 39
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 173
Low Fuel Warning Light . . . . . . . . . . . 134
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . 268
Lower Anchors and Tethers for
Children (LATCH System) . . . . . . . . . 94
Lumbar Adjustment . . . . . . . . . . . . . . . . . 57