wheel CADILLAC XTS 2016 1.G Workshop Manual
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Page 213 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
212 Driving and Operating
Warning (Continued)
or ice, or if the windshield is
damaged. It may also not detect a
vehicle on winding or hilly roads,
or in conditions that can limit
visibility such as fog, rain,
or snow, or if the headlamps or
windshield are not cleaned or in
proper condition. Keep the
windshield, headlamps, and FCA
sensors clean and in good repair.
Collision Alert
With Head-Up Display
Without Head-Up Display
When your vehicle approaches
another detected vehicle too rapidly,
the red FCA display will flash on the
windshield. Also, eight rapid
high-pitched beeps will sound from
the front, or both sides of the Safety
Alert Seat will pulse five times.
When this Collision Alert occurs, the
brake system may prepare for driver
braking to occur more rapidly which
can cause a brief, mild deceleration.
Continue to apply the brake pedal
as needed. Cruise control may be
disengaged when the Collision Alert
occurs. Tailgating Alert
The vehicle ahead indicator will
display amber when you are
following a vehicle ahead much too
closely.
Selecting the Alert Timing
The Collision Alert control is on the
steering wheel. Press
[to set the
FCA timing to Far, Medium, or Near,
Page 223 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
222 Driving and Operating
vehicle itself. Get acquainted with
the handling and braking of the rig
before setting out for the open road.
Before starting, check all trailer hitch
parts and attachments, safety
chains, electrical connectors, lamps,
tires, and mirrors. If the trailer has
electric brakes, start the
combination moving and then apply
the trailer brake controller by hand
to be sure the brakes work.
During the trip, check occasionally
to be sure that the load is secure
and the lamps and any trailer
brakes still work.
Towing with a Stability Control
System
When towing, the sound of the
stability control system might be
heard. The system is reacting to the
vehicle movement caused by the
trailer, which mainly occurs during
cornering. This is normal when
towing heavier trailers.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid situations
that require heavy braking and
sudden turns.
Passing
More passing distance is needed
when towing a trailer. Because the
rig is longer, it is necessary to go
farther beyond the passed vehicle
before returning to the lane.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move the
trailer to the left, move your hand to
the left. To move the trailer to the
right, move your hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making TurnsCaution
Making very sharp turns while
trailering could cause the trailer to
come in contact with the vehicle.
The vehicle could be damaged.
Avoid making very sharp turns
while trailering.
When turning with a trailer, make
wider turns than normal so the
trailer will not strike soft shoulders,
curbs, road signs, trees, or other
objects. Use the turn signal well in
advance and avoid jerky or sudden
maneuvers.
Turn Signals When Towing a
Trailer
The turn signal indicators on the
instrument cluster flash whenever
signaling a turn or lane change.
Properly hooked up, the trailer
lamps also flash, telling other
drivers the vehicle is turning,
changing lanes, or stopping.
Page 224 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Driving and Operating 223
When towing a trailer, the arrows on
the instrument cluster flash for turns
even if the bulbs on the trailer are
burned out. Check occasionally to
be sure the trailer bulbs are still
working.
Driving on Grades
Reduce speed and shift to a lower
gear before starting down a long or
steep downgrade. If the
transmission is not shifted down, the
brakes might have to be used so
much that they would get hot and no
longer work well.
The vehicle can tow in D (Drive).
Use a lower gear if the transmission
shifts too often.
When towing at high altitude on
steep uphill grades, engine coolant
boils at a lower temperature than at
normal altitudes. If the engine is
turned off immediately after towing
at high altitude on steep uphill
grades, the vehicle could show
signs similar to engine overheating.
To avoid this, let the engine run
while parked, preferably on level
ground, with the transmission in
P (Park) for a few minutes beforeturning the engine off. If the
overheat warning comes on, see
Engine Overheating
0243.
Parking on Hills
{Warning
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill: 1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if
facing downhill or into traffic if
facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the brake pedal
until the chocks absorb
the load. 4. Reapply the brake pedal. Then
apply the parking brake and
shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal while you:
.Start the engine.
. Shift into a gear.
. Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See the
Maintenance Schedule 0297.
Things that are especially important
in trailer operation are automatic
transmission fluid, engine oil, axle
Page 228 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Vehicle Care 227
Vehicle Care
General Information
General Information . . . . . . . . . . 228
Accessories andModifications . . . . . . . . . . . . . . . . 228
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 229
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 229
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 230
Engine Cover . . . . . . . . . . . . . . . . . 233
Engine Oil . . . . . . . . . . . . . . . . . . . . 234
Engine Oil Life System . . . . . . . 236
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 237
Engine Air Cleaner/Filter . . . . . . 237
Cooling System . . . . . . . . . . . . . . 239
Engine Coolant . . . . . . . . . . . . . . . 240
Engine Overheating . . . . . . . . . . 243
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . 244
Power Steering Fluid (LFX with FWD) . . . . . . . . . . . . . . . . . . 244
Power Steering Fluid (LF3 and LFX with AWD) . . . . . . . . . . . . . 244
Washer Fluid . . . . . . . . . . . . . . . . . 245
Brakes . . . . . . . . . . . . . . . . . . . . . . . 246 Brake Fluid . . . . . . . . . . . . . . . . . . . 247
Battery . . . . . . . . . . . . . . . . . . . . . . . . 248
All-Wheel Drive . . . . . . . . . . . . . . . 249
Starter Switch Check . . . . . . . . . 249
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 249
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 249
Wiper Blade Replacement . . . . 250
Windshield Replacement . . . . . 251
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 251
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 251
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 251
LED Lighting . . . . . . . . . . . . . . . . . 252
Back-Up Lamps . . . . . . . . . . . . . . 252
License Plate Lamp . . . . . . . . . . 252
Replacement Bulbs . . . . . . . . . . . 253
Electrical System
Electrical System Overload . . . 253
Fuses and Circuit Breakers . . . 254
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 254
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 257 Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 259
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 261
All-Season Tires . . . . . . . . . . . . . . 262
Winter Tires . . . . . . . . . . . . . . . . . . 262
Summer Tires . . . . . . . . . . . . . . . . 262
Tire Pressure . . . . . . . . . . . . . . . . . 263
Tire Pressure for High-SpeedOperation . . . . . . . . . . . . . . . . . . . 264
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 265
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 266
Tire Inspection . . . . . . . . . . . . . . . . 268
Tire Rotation . . . . . . . . . . . . . . . . . 269
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 270
Buying New Tires . . . . . . . . . . . . . 271
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 272
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 272
Wheel Replacement . . . . . . . . . . 273
Tire Chains . . . . . . . . . . . . . . . . . . . 273
If a Tire Goes Flat . . . . . . . . . . . . 274
Tire Changing . . . . . . . . . . . . . . . . 275
Compact Spare Tire . . . . . . . . . . 280
Page 237 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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236 Vehicle Care
Engine Oil Additives/Engine
Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the
dexos1 specification are all that is
needed for good performance and
engine protection.
Engine oil system flushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty.
What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in thetrash or pouring it on the ground,
into sewers, or into streams or
bodies of water. Recycle it by taking
it to a place that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on a combination of factors which
include engine revolutions, engine
temperature, and miles driven.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.
When the system has calculated
that oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE
OIL SOON message comes on. See
Engine Oil Messages
0137.
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life system might indicate that an oil
change is not necessary for up to a
year. The engine oil and filter must
be changed at least once a year
and at this time the system must be
reset. Your dealer has trained
service people who will perform this
work and reset the system. It is also
important to check the oil regularly
over the course of an oil drain
interval and keep it at the proper
level.
If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:
1. Using the DIC controls on the right side of the steering wheel,
display REMAINING OIL LIFE
Page 247 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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246 Vehicle Care
Caution
.Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
(Continued)
Caution (Continued)
freezing occurs, which could
damage the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be
heard all the time when the vehicle
is moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications. See Capacities and
Specifications 0305.
Brake pads should be replaced as
complete sets.
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service may be required.
Page 250 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Vehicle Care 249
All-Wheel Drive
Transfer Case
Under normal driving conditions,
transfer case fluid does not require
maintenance unless there is a fluid
leak or unusual noise. If required,
have the transfer case serviced by
your dealer.
Starter Switch Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular brake.
See Electric Parking Brake
0 190. Do not use the accelerator
pedal, and be ready to turn off
the engine immediately if it
starts.
3. Try to start the engine in each gear. The vehicle should start
only in P (Park) or N (Neutral).
If the vehicle starts in any other
position, contact your dealer for
service.
Automatic Transmission
Shift Lock Control
Function Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle. It should be
parked on a level surface. 2. Firmly apply the parking brake.
See Electric Parking Brake
0 190.
Be ready to apply the regular
brake immediately if the vehicle
begins to move.
3. With the engine off, turn the ignition on, but do not start the
engine. Without applying the
regular brake, try to move the
shift lever out of P (Park) with
normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
(Continued)
Page 257 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
256 Vehicle Care
Mini Fuses Usage8 Ignition Coils –Even
(6–Cylinder Engine)
9 Ignition Coils –Odd
(6–Cylinder Engine)
10 Engine Control Module–Switched
Battery (from Engine
Control Module
Relay)
11 6–Cylinder Engine: Post Catalytic
Converter Oxygen
Sensor Heater,
Mass Air Flow
Sensor, Flex Fuel
Sensor
13 Run/Crank for Transmission
Control Module and
Chassis Control
Module
14 Right Rear Heated Seat
15 Left Rear Heated Seat Mini Fuses Usage
16 Not Used
17 Body Run/Crank
18 Autonet Run/Crank (Aftermarket)
20 Not Used
23 Variable Effort Steering
29 Passive Entry/ Passive Start
Module–Battery
30 All-Wheel Drive Module
31 Left Front Heated Seat
32 Body Control Module 6
33 Right Front Heated Seat
34 Antilock Brake System Valves
35 Amplifier
37 Right High Beam Mini Fuses Usage
38 Left High Beam
46 Cooling Fan Relay
47 6–Cylinder Engine: Pre Catalytic
Converter Oxygen
Sensor Heater,
Canister Purge
Solenoid
48 Coolant Pump
49 Right High Intensity Discharge
Headlamp
50 Left High Intensity Discharge
Headlamp
51 Horn
52 Cluster Run/Crank
53 Run/Crank for Inside Rearview Mirror,
Rear Vision Camera
54 Run/Crank for Heating, Ventilation,
and Air Conditioning
Page 259 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
258 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Wireless Charger Module
2 Body Control Module 7
3 Body Control Module 5
4 Radio Fuses
Usage
5 Infotainment and Center Stack
Displays, Head-up
Display, Instrument
Cluster, Rear Seat
Entertainment
6 Power Outlet 1
7 Power Outlet 2
8 Body Control Module 1
9 Body Control Module 4
10 Body Control Module 8
(J-Case Fuse)
11 Front Heater Ventilation Air
Conditioning/Blower
(J-Case Fuse)
12 Passenger Seat (Circuit Breaker)
13 Driver Seat (Circuit Breaker) Fuses
Usage
14 Diagnostic Link Connector
15 Airbag AOS
16 Glove Box
17 Heater Ventilation Air Conditioning
Controller
18 Logistics
19 Electronic Steering Column Lock
20 Telematics (OnStar)
21 Spare
22 Steering Wheel Controls/Backlight
23 Body Control Module 3
24 Body Control Module 2
25 Power Steering Column
26 AC/DC Inverter
Page 261 of 320

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
260 Vehicle Care
Fuse
Number Usage
F09 Not Used
F10 Not Used F11 Not Used
F12 Not Used
F13 Not Used
F14 Not Used
F15 Not Used
F16 Video Processing Module
F17 Not Used
F18 Semi-active Damping System
F19 Universal Garage Door Opener/Rain,
Light, and Humidity
Sensor
F20 Shunt
F21 Side Blind Zone
F22 Not Used
F23 All-Wheel Drive Fuse
Number Usage
F24 Not Used
F25 Not Used
F26 Not Used
F27 Not Used
F28 Not Used
F29 Not Used
F30 Front Camera/EOCM
F31 Rear Parking Assist/ Lane Departure
Warning
F32 Not Used
F33 Not Used
F34 Not Used
F35 Not Used
F36 Not Used
F37 Not Used
Relays Usage K1 Not Used Relays Usage
K2 Front Courtesy Lamps Relay
K3 Leveling Compressor Relay
K4 Logic