2018 CADILLAC ATS engine coolant

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
INTRODUCTION 3
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do Not,”
“Do not do this,” or“Do not let this
happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with the text describing the operation or
information relating to a specific
component, control, message, gauge,
or indicator.
M:
Shown when the owner’s manual
has additional instructions or
information.
*: Shown when the service manual
has additional instructions or
information.
0: Shown when there is more
information on another page —
“see page.”
Vehicle Symbol Chart
Here are some additional symbols that
may be found on the vehicle and what
they mean. See the features in this
manual for information.
u: Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable
[:Forward Collision Alert
R: Fuse Block Cover Lock Location
+:Fuses
j:ISOFIX/LATCH System Child
Restraints
Q: Keep Fuse Block Covers Properly
Installed
|: Lane Change Alert
@:Lane Departure Warning
A:Lane Keep Assist
*:Malfunction Indicator Lamp
::Oil Pressure
X:Park Assist
~:Pedestrian Ahead Indicator
O:Power
7: Rear Cross Traffic Alert
I:Registered Technician

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
KEYS, DOORS, AND WINDOWS 35
Canceling a Remote Start
To cancel a remote start, do any of
the following:
.Press and hold
/until the
parking lamps turn off.
. Turn on the hazard warning
flashers.
. Turn the vehicle on and then
back off.
Conditions in Which Remote Start
Will Not Work
The remote start will not operate if
any of the following occur:
. The ignition is in any mode other
than off.
. The transmitter is in the vehicle.
. The hood is not closed.
. The hazard warning flashers
are on.
. There is an emission control
system malfunction.
. The engine coolant temperature is
too high.
. The oil pressure is low. .
Two remote vehicle starts or a
start with an extension have
already been used.
. The vehicle is not in P (Park).
Door Locks
{Warning
Unlocked doors can be dangerous.
. Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. The doors can be
unlocked and opened while
the vehicle is moving. The
chance of being thrown out of
the vehicle in a crash is
increased if the doors are not
locked. So, all passengers
should wear seat belts
properly and the doors should
be locked whenever the
vehicle is driven.
. Young children who get into
unlocked vehicles may be
unable to get out. A child can
(Continued)
Warning (Continued)
be overcome by extreme heat
and can suffer permanent
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.
. Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the doors
can help prevent this from
happening.
To lock/unlock the doors from outside
the vehicle:
. Press
QorKon the Remote
Keyless Entry (RKE) transmitter.
See Remote Keyless Entry (RKE)
System Operation 027.
. Use the key in the key lock
cylinder in the driver door or,
if equipped, the passenger door.
The key lock cylinder is covered
with a cap.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
112 INSTRUMENTS AND CONTROLS
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . 113
Steering Wheel Controls . . . . . . . . . 113
Heated Steering Wheel . . . . . . . . . . 113
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Windshield Wiper/Washer . . . . . . . 113
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Power Outlets . . . . . . . . . . . . . . . . . . . . . 115
Wireless Charging . . . . . . . . . . . . . . . . 117
Cigarette Lighter . . . . . . . . . . . . . . . . . . 119
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . 120
Instrument Cluster . . . . . . . . . . . . . . . 121
Speedometer . . . . . . . . . . . . . . . . . . . . . . 125
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 125
Trip Odometer . . . . . . . . . . . . . . . . . . . . 125
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 125
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 125
Boost Gauge (Performance Configuration Only) . . . . . . . . . . . . 126 Engine Oil Temperature Gauge
(Performance
Configuration Only) . . . . . . . . . . . . 127
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Seat Belt Reminders . . . . . . . . . . . . . . 128
Airbag Readiness Light . . . . . . . . . . 129
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 130
Charging System Light . . . . . . . . . . . 131
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 131
Brake System Warning Light . . . . 133
Electric Parking Brake Light . . . . . 133
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 134
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Lane Keep Assist (LKA) Light . . . 135
Vehicle Ahead Indicator . . . . . . . . . 135
Traction Off Light . . . . . . . . . . . . . . . . 135
StabiliTrak OFF Light . . . . . . . . . . . . 136
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 136
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . 136
Tire Pressure Light . . . . . . . . . . . . . . . 137
Engine Oil Pressure Light . . . . . . . . 137 Low Fuel Warning Light . . . . . . . . . 138
Security Light . . . . . . . . . . . . . . . . . . . . . 138
High-Beam On Light . . . . . . . . . . . . . 138
Lamps On Reminder . . . . . . . . . . . . . 138
Cruise Control Light . . . . . . . . . . . . . . 139
Door Ajar Light . . . . . . . . . . . . . . . . . . . 139
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . . . . 139
Head-Up Display (HUD) . . . . . . . . . 142
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 146
Engine Power Messages . . . . . . . . . . 146
Vehicle Speed Messages . . . . . . . . . 146
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . 147
Universal Remote System
Universal Remote System . . . . . . . . 151
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . 151
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . 154

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
128 INSTRUMENTS AND CONTROLS
Engine Coolant
Temperature Gauge
Metric Base Level
English Base Level
Metric Uplevel BalancedConfiguration
English Uplevel Balanced Configuration
This gauge measures the temperature
of the vehicle's engine.
While driving under normal operating
conditions, if the needle moves into
the red area, the engine is too hot.
Pull off the road, stop the vehicle, and
turn off the engine as soon as
possible.
Seat Belt Reminders
Driver Seat Belt Reminder Light
There is a driver seat belt reminder
light on the instrument cluster.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
136 INSTRUMENTS AND CONTROLS
SeeTraction Control/Electronic Stability
Control 0196.
StabiliTrak OFF Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer.
This light comes on when the
StabiliTrak/Electronic Stability Control
(ESC) system is turned off.
If StabiliTrak/ESC is off, the Traction
Control System (TCS) is also off.
If StabiliTrak/ESC and TCS are off, the
system does not assist in controlling
the vehicle. Turn on the TCS and the
StabiliTrak/ESC systems, and the
warning light turns off.
See Traction Control/Electronic Stability
Control 0196.
Traction Control System
(TCS)/StabiliTrak Light
This light comes on briefly when the
engine is started.
If the light does not come on, have
the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.
If the light is on and not flashing, the
TCS and potentially the StabiliTrak/
ESC system have been disabled.
A Driver Information Center (DIC)
message may display. Check the DIC
messages to determine which
feature(s) is no longer functioning and
whether the vehicle requires service.
If the light is on and flashing, the TCS
and/or the StabiliTrak/ESC system is
actively working. See
Traction Control/Electronic Stability
Control 0196.
Engine Coolant
Temperature Warning Light
On some vehicles this light comes on
briefly while starting the vehicle. If it
does not, have the vehicle serviced by
the dealer. If the system is working
normally the indicator light goes off.
For vehicles with the reconfigurable
cluster, this light may not come on
when starting the vehicle.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving with
this light on can damage the engine
(Continued)

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
INSTRUMENTS AND CONTROLS 137
Caution (Continued)
and it may not be covered by the
vehicle warranty. SeeEngine
Overheating 0253.
The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens pull over and turn off
the engine as soon as possible. See
Engine Overheating 0253.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information about
tire pressures and the TPMS. When the Light Is On Steady
This indicates that one or more of the
tires are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display.
Stop as soon as possible, and inflate
the tires to the pressure value shown
on the Tire and Loading Information
label. See
Tire Pressure 0279.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light will
come on at every ignition cycle. See
Tire Pressure Monitor Operation 0282.
Engine Oil Pressure Light
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
(Continued)
Caution (Continued)
The repairs would not be covered
by the vehicle warranty. Check the
oil level as soon as possible. Add oil
if required, but if the oil level is
within the operating range and the
oil pressure is still low, have the
vehicle serviced. Always follow the
maintenance schedule for changing
engine oil.
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced by
your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle could
be low on oil and might have some
other system problem. See your dealer.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
DRIVING AND OPERATING 231
and not as responsive as the 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.
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 heavy braking
and sudden turns.
Passing
More passing distance is needed when
towing a trailer. The combination will
not accelerate as quickly and is longer,so it is necessary to go much 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 that 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 Turns
Caution
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. Do this so
the trailer will not strike soft shoulders, curbs, road signs, trees,
or other objects. Avoid jerky or sudden
maneuvers. Signal well in advance.
If the trailer turn signal bulbs burn
out, the arrows on the instrument
cluster will still flash for turns. It is
important to 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 get hot
and no longer work well.
Vehicles can tow in D (Drive). Shift
the transmission to a lower gear if the
transmission shifts too often under
heavy loads and/or hilly conditions.
When towing at high altitude on steep
uphill grades, consider the following:
Engine coolant will boil 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 may show
signs similar to engine overheating. To
avoid this, let the engine run while
parked, preferably on level ground,

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
VEHICLE CARE 241
1.Engine Air Cleaner/Filter 0248.
2. Power Steering Fluid Reservoir (Under Engine Cover) (If
Equipped).
See Power Steering Fluid (LF3 and
LFX with AWD) 0255 orPower
Steering Fluid (LFX with FWD)
0 255.
3. Engine Oil Fill Cap. See Engine Oil
0 244.
4. Engine Oil Dipstick (Out of View). See Engine Oil0244.
5. Engine Cover 0243.
6. Engine Cooling Fans (Out of View). See Cooling System 0250.
7. Brake Fluid Reservoir. See Brake
Fluid 0257.
8. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 250.
9. Battery - North America 0258
(Battery Cover not Shown).
10. Remote Positive (+) Terminal (Battery Cover not Shown). See
Jump Starting - North America
0306. 11.
Engine Compartment Fuse Block
0265.
12. Remote Negative (−) Terminal (Out of View). See Jump Starting -
North America 0306.
13. Windshield Washer Fluid Reservoir. See Washer Fluid
0 256.