2018 CADILLAC ATS ABS

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
196 DRIVING AND OPERATING
Automatic EPB Release
The EPB will automatically release if
the vehicle is running, placed into
gear, and an attempt is made to drive
away. Avoid rapid acceleration when
the EPB is applied, to preserve parking
brake lining life.
Brake Assist
This vehicle has a brake assist feature
designed to assist the driver in
stopping or decreasing vehicle speed
in emergency driving conditions. This
feature uses the stability system
hydraulic brake control module to
supplement the power brake system
under conditions where the driver has
quickly and forcefully applied the
brake pedal in an attempt to quickly
stop or slow down the vehicle. The
stability system hydraulic brake
control module increases brake
pressure at each corner of the vehicle
until the ABS activates. Minor brake
pedal pulsation or pedal movement
during this time is normal and the
driver should continue to apply the
brake pedal as the driving situation
dictates. The brake assist feature willautomatically disengage when the
brake pedal is released or brake pedal
pressure is quickly decreased.
Hill Start Assist (HSA)
This vehicle has a Hill Start Assist
(HSA) feature, which may be useful
when the vehicle is stopped on a
grade sufficient enough to activate
HSA. This feature is designed to
prevent the vehicle from rolling, either
forward or rearward, during vehicle
drive off. After the driver completely
stops and holds the vehicle in a
complete standstill on a grade, HSA
will be automatically activated. During
the transition period between when
the driver releases the brake pedal and
starts to accelerate to drive off on a
grade, HSA holds the braking pressure
for a maximum of two seconds to
ensure that there is no rolling. The
brakes will automatically release when
the accelerator pedal is applied within
the two-second window. It will not
activate if the vehicle is in a drive gear
and facing downhill, or if the vehicle
is facing uphill and in R (Reverse).
Ride Control Systems
Traction Control/Electronic
Stability Control
System Operation
The vehicle has a Traction Control
System (TCS) and StabiliTrak/
Electronic Stability Control (ESC).
These systems help limit wheel slip
and assist the driver in maintaining
control, especially on slippery road
conditions.
TCS activates if it senses that any of
the drive wheels are spinning or
beginning to lose traction. On an
All-Wheel-Drive (AWD) vehicle, the
system will operate if it senses that
any of the wheels are spinning or
beginning to lose traction. When this
happens, TCS applies the brakes to the
spinning wheels and reduces engine
power to limit wheel spin.
StabiliTrak/ESC activates when the
system senses a discrepancy between
the intended path and the direction
the vehicle is actually traveling.
StabiliTrak/ESC selectively applies

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
232 DRIVING AND OPERATING
with the automatic transmission in
P (Park) for a few minutes before
turning the engine off. If the overheat
warning comes on, seeEngine
Overheating 0253.
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 regular brakes
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.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer is clear of the chocks.
7. 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
Maintenance Schedule 0322. Things
that are especially important in trailer
operation are automatic transmission fluid, engine oil, axle lubricant, belts,
cooling system, and brake system. It is
a good idea to inspect these before
and during the trip.
Check periodically to see that all hitch
nuts and bolts are tight.
Trailer Towing
{Warning
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly. For
example, if the trailer is too heavy
or the trailer brakes are inadequate
for the load, the vehicle may not
stop as expected. The driver and
passengers could be seriously
injured. The vehicle may also be
damaged; the resulting repairs
would not be covered by the vehicle
warranty. Pull a trailer only if all the
steps in this section have been
followed. Ask your dealer for advice
and information about towing a
trailer with the vehicle.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
258 VEHICLE CARE
{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
0 133.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid at
the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0322.
What to Add
Use only GM approved DOT 3 brake
fluid from a clean, sealed container.
See Recommended Fluids and
Lubricants 0332.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the paint
finish can be damaged. Immediately
wash off any painted surface.
Battery - North America
The original equipment battery is
maintenance free. Do not remove the
cap and do not add fluid.
Refer to the replacement number
shown on the original battery label
when a new battery is needed. See
Engine Compartment Overview 0240
for battery location.
{Warning
WARNING: Battery posts,
terminals, and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.
Batteries also contain other
chemicals known to the State of
California to cause cancer. WASH
HANDS AFTER HANDLING. For
more information go to
www.P65Warnings.ca.gov/
passenger-vehicle.
See California Proposition 65 Warning
0 237 and the back cover.
Vehicle Storage
{Warning
Batteries have acid that can burn
you and gas that can explode. You
can be badly hurt if you are not
careful. See Jump Starting - North
(Continued)

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
VEHICLE CARE 267
FusesUsage
23 Variable effort steering module
24 Front power windows
25 Retained accessory power
26 ABS pump
27 Electric parking brake
28 Rear window defogger
29 Passive entry/Passive start
30 Spare
31 Heated driver seat
32 Stoplamps –center
high mounted
stoplamp/
Backup-reverse
lamps/Interior
33 Heated passenger seat
34 ABS valves
35 Amplifier
36 Taillamp –driver side Fuses
Usage
37 Right high-beam headlamp
38 Left high-beam headlamp
39 Taillamp –
passenger side
40 Long range radar
41 Brake vacuum assist pump
42 Cooling fan high speed
43 –
44 –
45 Cooling fan low speed
46 Cooling fan control
47 Pre-catalytic converter O2 sensor
heater/Canister purge
solenoid
48 Low temperature radiator coolant pump
49 Right headlamp LED Fuses
Usage
50 Left headlamp LED
51 Horn
52 Display/Ignition
53 Air quality sensor/ Inside mirror/Rear
vision camera
54 HVAC/Reflective LED alert display
55 Driver and passenger door switches/Outside
rearview mirror
switch/Mirror
memory module
56 Windshield washer
57 –
58 –
59 –
60 Heated outside mirror
61 –
62 Front seats massage module
63 –

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
VEHICLE CARE 305
The compact spare is for temporary
use only. Replace the compact spare
tire with a full-size tire as soon as
you can.
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a crash
and you or others could be injured.
Use only one compact spare tire at
a time.
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure regularly.
It should be 420 kPa (60 psi).
Stop as soon as possible and check
that the spare tire is correctly inflated
after being installed on the vehicle.
The compact spare tire is designed for
temporary use only. The vehicle will
perform differently with the spare tire installed and it is recommended that
the vehicle speed be limited to
80 km/h (50 mph). To conserve the
tread of the spare tire, have the
standard tire repaired or replaced as
soon as convenient and return the
spare tire to the storage area.
When using a compact spare tire, the
AWD (if equipped), ABS, and Traction
Control systems may engage until the
spare tire is recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible wheel slip.
Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact spare
can get caught on the rails which
can damage the tire, wheel, and
other parts of the vehicle.
Do not use the compact spare on
other vehicles. Do not mix the compact spare tire or
wheel with other wheels or tires. They
will not fit. Keep the spare tire and its
wheel together.
Caution
Tire chains will not fit the compact
spare. Using them can damage the
vehicle and the chains. Do not use
tire chains on the compact spare.
Full-Size Spare Tire
If this vehicle came with a full-size
spare tire, it was fully inflated when
new, however, it can lose air over
time. Check the inflation pressure
regularly.
See
Tire Pressure 0279 and Vehicle
Load Limits 0179 for information
regarding proper tire inflation and
loading the vehicle. For instructions
on how to remove, install, or store a
spare tire, see Tire Changing0300.
After installing the spare tire on the
vehicle, stop as soon as possible and
check that the spare is correctly
inflated. The spare tire is made to

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
312 VEHICLE CARE
Dolly Towing from the Rear
The vehicle cannot be dolly towed
from the rear.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and Lubricants
0332.
Washing the Vehicle
To preserve the vehicle's finish, wash
it often and out of direct sunlight.
Caution
Do not use petroleum-based, acidic,
or abrasive cleaning agents as they
can damage the vehicle's paint,
metal, or plastic parts. If damage
occurs, it would not be covered by
the vehicle warranty. Approved
cleaning products can be obtained
from your dealer. Follow all
manufacturer directions regarding
(Continued)
Caution (Continued)
correct product usage, necessary
safety precautions, and appropriate
disposal of any vehicle care
product.
Caution
Avoid using high-pressure washes
closer than 30 cm (12 in) to the
surface of the vehicle. Use of power
washers exceeding 8,274 kPa
(1,200 psi) can result in damage or
removal of paint and decals.
Caution
Do not power wash any component
under the hood that has this
e
symbol.
This could cause damage that
would not be covered by the vehicle
warranty.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
364 INDEX
IndexA
Accessories and Modifications . . . . . 238
Accessory Power . . . . . . . . . . . . . . . . . . . . 188
Adaptive Cruise Control . . . . . . . . . . . . 202
Add-On Electrical Equipment . . . . . . 235
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . . . . . 57
Thigh Support . . . . . . . . . . . . . . . . . . . . . . 59
Air Cleaner/Filter, Engine . . . . . . . . . . 248
Air Conditioning . . . . . . . . . . . . . . .163, 168
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . . . . . 170
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
How Does an Airbag Restrain? . . . . . 81
Passenger Sensing System . . . . . . . . . 82
What Makes an Airbag Inflate? . . . . 80
What Will You See after anAirbag Inflates? . . . . . . . . . . . . . . . . . . . 81
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Where Are the Airbags? . . . . . . . . . . . . 78 Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Passenger Status Indicator . . . . . . . 130
Readiness Light . . . . . . . . . . . . . . . . . . . 129
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
System Check . . . . . . . . . . . . . . . . . . . . . . . 76
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . 41
Alert
Lane Change . . . . . . . . . . . . . . . . . . . . . . 221
Side Blind Zone (SBZA) . . . . . . . . . . 221
All-Season Tires . . . . . . . . . . . . . . . . . . . . . 273
All-Wheel Drive . . . . . . . . . . . . . . . .193, 259
Antilock Brake System (ABS) . . . . . . 194 Warning Light . . . . . . . . . . . . . . . . . . . . 134
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
Armrest
Rear Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Armrest Storage . . . . . . . . . . . . . . . . . . . . . 109
Assistance Systems for Driving . . . . 217
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . 211
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . . 45

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
INDEX 369
K
Keyless EntryRemote (RKE) System . . . . . . . . . . . . . . 27
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 274
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Daytime Running (DRL) . . . . . . . . . . 157
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Exterior Controls . . . . . . . . . . . . . . . . . . 155
Exterior Lamps Off Reminder . . . . 156
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
License Plate . . . . . . . . . . . . . . . . . . . . . . 264
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 131
On Reminder . . . . . . . . . . . . . . . . . . . . . . 138
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Lane Change Alert (LCA) . . . . . . . . . . . 221
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . . . . 223
Lane Departure Warning Light . . . . 134
Lane Keep Assist (LKA) . . . . . . . . . . . . 224
Lane Keep Assist Light . . . . . . . . . . . . . 135
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 71 LATCH System
Replacing Parts after a Crash . . . . 101
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . 95
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 263
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 199
Lighter, Cigarette . . . . . . . . . . . . . . . . . . . 119
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Illumination Control . . . . . . . . . . . . . . 159
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 129
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . 134
Brake System Warning . . . . . . . . . . . 133
Charging System . . . . . . . . . . . . . . . . . . 131
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 131
Cruise Control . . . . . . . . . . . . . . . . . . . . . 139
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Electric Parking Brake . . . . . . . . . . . . 133
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 136
Engine Oil Pressure . . . . . . . . . . . . . . . 137
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 157 Lights (cont'd)
High-Beam On . . . . . . . . . . . . . . . . . . . . 138
High/Low Beam Changer . . . . . . . . . 156
Lane Departure Warning . . . . . . . . . 134
Lane Keep Assist . . . . . . . . . . . . . . . . . . 135
Low Fuel Warning . . . . . . . . . . . . . . . . 138
Seat Belt Reminders . . . . . . . . . . . . . . 128
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Service Electric Parking Brake . . . 134
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 136
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 137
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . . . . . 136
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 135
Limited-Slip Rear Axle . . . . . . . . . . . . . 198
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . 38
Delayed Locking . . . . . . . . . . . . . . . . . . . . 37
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lockout Protection . . . . . . . . . . . . . . . . . 38
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 176
Low Fuel Warning Light . . . . . . . . . . . 138
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . 273
Lower Anchors and Tethers for
Children (LATCH System) . . . . . . . . . 95
Lumbar Adjustment . . . . . . . . . . . . . . . . . 57