
Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Vehicle Care 233
1.Engine Air Cleaner/Filter 0237.
2. Power Steering Fluid Reservoir (Under Engine Cover). See
Power Steering Fluid (LFX with
FWD) 0244 orPower Steering
Fluid (LF3 and LFX with AWD)
0 244.
3. Engine Oil Fill Cap. See Engine Oil 0234.
4. Engine Oil Dipstick. See Engine Oil 0234.
5. Engine Cover 0233.
6. Engine Cooling Fans (Out of View). See Cooling System
0 239.
7. Charged Air Coolant Reservoir and Pressure Cap. See Engine
Coolant 0240.
8. Brake Fluid Reservoir. See Brakes 0246.
9. Engine Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0240.
10. Battery 0248 (Battery Cover
not Shown). 11. Remote Positive (+) Terminal
(Battery Cover not Shown).
SeeJump Starting 0281.
12. Engine Compartment Fuse
Block 0254.
13. Windshield Washer Fluid Reservoir. See Washer Fluid
0 245.
14. Remote Negative (−) Terminal (Out of View). See Jump
Starting 0281.
Engine Cover
3.6L V6 Engine
1. Engine Oil Fill Cap 2. Engine Cover Bolt
3. Engine Cover
3.6L V6 Engine Twin Turbo
1. Engine Oil Fill Cap
2. Engine Cover Bolt
3. Engine Cover
To remove:
1. Remove the oil fill cap (1).
2. Remove the engine cover bolt (2).
3. Raise the engine cover (3) to release it from the retainers.
4. Lift and remove the engine cover.

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.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Vehicle Care 247
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement
parts. If this is not done, the brakes
may not work properly. The braking
performance expected can change
in many other ways if the wrong
replacement brake parts are
installed or parts are improperly
installed.
Brake Fluid
The brake master cylinder reservoir
is filled with DOT 3 brake fluid as
indicated on the reservoir cap. See
Engine Compartment Overview
0230 for the location of the
reservoir. There are only two reasons why the
brake fluid level in the reservoir may
go down:
.
Normal brake lining wear. When
new linings are installed, the
fluid level goes back up.
. A fluid leak in the brake
hydraulic system. Have the
brake hydraulic system fixed.
With a leak, the brakes will not
work well.
Always clean the brake fluid
reservoir cap and the area around
the cap before removing it.
Do not top off the brake fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are
installed. Add or remove fluid, as
necessary, only when work is done
on the brake hydraulic system.
{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You
or others could be burned, and
the vehicle could be damaged.
Add brake fluid only when work is
done on the brake hydraulic
system.
When the brake fluid falls to a low
level, the brake warning light comes
on. See Brake System Warning
Light 0121.
Brake fluid absorbs water over time.
Replace brake fluid at the specified
intervals to prevent increased
stopping distance. See Maintenance
Schedule 0297.
What to Add
Use only GM approved DOT 3
brake fluid from a clean, sealed
container. See Recommended
Fluids and Lubricants 0301.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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272 Vehicle Care
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See Tire Pressure Monitor
System 0265. The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See
Vehicle Load Limits
0 177 for the label location and
more information about the Tire
and Loading Information label.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases 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 0271 and
Accessories and Modifications
0 228.
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

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Vehicle Care 273
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.
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts can be dangerous. It could
affect the braking and handling of
the vehicle. Tires can lose air,
and cause loss of control, causing
a crash. Always use the correct
wheel, wheel bolts, and wheel
nuts for replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or
odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used
one is dangerous. How it has
been used or how far it has been
driven may be unknown. It could
fail suddenly and cause a crash.
When replacing wheels, use a
new GM original equipment
wheel.
Tire Chains
{Warning
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other vehicle
parts. The area damaged by the
tire chains could cause loss of
control and a crash.
(Continued)

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Index 311
Assistance Systems forParking and Backing . . . . . . . . . . 206
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . . 35
Headlamp System . . . . . . . . . . . . 155
Level Control . . . . . . . . . . . . . . . . . 195
Transmission . . . . . . . . . . . . . . . . . 187
Transmission Fluid . . . . . . . . . . . 237
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 188
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 249
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 248Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 159
Jump Starting . . . . . . . . . . . . . . . . . 281
Power Protection . . . . . . . . . . . . . 158
Voltage and Charging Messages . . . . . . . . . . . . . . . . . . . 135
Blade Replacement, Wiper . . . . . 250
Brake Parking, Electric . . . . . . . . . . . . . . 190
System Warning Light . . . . . . . . 121
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Antilock . . . . . . . . . . . . . . . . . . . . . . . 189
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 192
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 247 Brakes (cont'd)
System Messages . . . . . . . . . . . . 135
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 172
Break-In, New Vehicle . . . . . . . . . . 180
Bulb Replacement . . . . . . . . . . . . . . 253 Back-up Lamps . . . . . . . . . . . . . . . 252
Headlamp Aiming . . . . . . . . . . . . . 251
Headlamps . . . . . . . . . . . . . . . . . . . 251
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 251
License Plate Lamps . . . . . . . . . 252
Buying New Tires . . . . . . . . . . . . . . . 271
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 105
Capacities and Specifications . . . . . . . . . . . . . . . . . 305
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 186
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Winter Driving . . . . . . . . . . . . . . . . 175
Cargo Management System . . . . . . . . . 101
Tie-Downs . . . . . . . . . . . . . . . . . . . . 100
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . . 99
Chains, Tire . . . . . . . . . . . . . . . . . . . . 273
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 108 Charging System Light . . . . . . . . . 119
Check
Malfunction IndicatorEngine Light . . . . . . . . . . . . . . . . .119
Child Restraints Infants and Young Children . . . . . 82
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 86
Older Children . . . . . . . . . . . . . . . . . . 80
Securing . . . . . . . . . . . . . . . . . . . . 93, 95
Systems . . . . . . . . . . . . . . . . . . . . . . . . 84
Cigarette Lighter . . . . . . . . . . . . . . . . 109
Circuit Breakers . . . . . . . . . . . . . . . . 254
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 287
Interior Care . . . . . . . . . . . . . . . . . . 291
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 161
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Cluster, Instrument . . . . . . . . . . . . . 111
Compact Spare Tire . . . . . . . . . . . . 280
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 98
Compass . . . . . . . . . . . . . . . . . . . . . . . 105
Messages . . . . . . . . . . . . . . . . . . . . 136

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Index 313
Engine (cont'd)Cover . . . . . . . . . . . . . . . . . . . . . . . . . 233
Drive Belt Routing . . . . . . . . . . . . 307
Exhaust . . . . . . . . . . . . . . . . . . . . . . 186
Oil Life System . . . . . . . . . . . . . . . 236
Oil Messages . . . . . . . . . . . . . . . . . 137
Oil Pressure Light . . . . . . . . . . . . 125
Overheated Protection
Operating Mode . . . . . . . . . . . . . 244
Overheating . . . . . . . . . . . . . . . . . . 243
Power Messages . . . . . . . . . . . . . 138
Running While Parked . . . . . . . . 186
Starting . . . . . . . . . . . . . . . . . . . . . . . 182
Entry Lighting . . . . . . . . . . . . . . . . . . . 158
Equipment, Towing . . . . . . . . . . . . . 225
Event Data Recorders . . . . . . . . . . 308
Exit Lighting . . . . . . . . . . . . . . . . . . . . 158
Exterior Lamp Controls . . . . . . . . . 152
Exterior Lamps Off Reminder . . . 154
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 159
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . 237
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 154
Flashers, Hazard Warning . . . . . . 156 Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 274
Changing . . . . . . . . . . . . . . . . . . . . . 275
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 294
Fluid Automatic Transmission . . . . . . 237
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 247
Power Steering . . . . . . . . . . . . . . . 244
Washer . . . . . . . . . . . . . . . . . . . . . . . 245
Folding Mirrors . . . . . . . . . . . . . . . . . . 42
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . 211
Front Automatic Braking (FAB) System . . . . . . . . . . . . . . . . . 213
Front Seats Heated and Ventilated . . . . . . . . . . 57
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Additives . . . . . . . . . . . . . . . . . . . . . 218
Economy Driving . . . . . . . . . . . . . . . 25
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 220
Filling the Tank . . . . . . . . . . . . . . . 219
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .115
Low Fuel Warning Light . . . . . . . 126
System Messages . . . . . . . . . . . . 138
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 254
Fuses and Circuit Breakers . . . 254 Fuses (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 257
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 259
G
GaugesEngine CoolantTemperature . . . . . . . . . . . . . . . . .116
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Odometer . . . . . . . . . . . . . . . . . . . . . .115
Speedometer . . . . . . . . . . . . . . . . . .114
Tachometer . . . . . . . . . . . . . . . . . . . .115
Trip Odometer . . . . . . . . . . . . . . . . .115
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . .110
General Information Service and Maintenance . . . . . 296
Towing . . . . . . . . . . . . . . . . . . . . . . . . 221
Vehicle Care . . . . . . . . . . . . . . . . . . 228
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 99
H
Hazard Warning Flashers . . . . . . . 156
Head Restraints . . . . . . . . . . . . . . . . . 50
Head-up Display . . . . . . . . . . . . . . . . 131