check oil CADILLAC XT6 2020 Owner's Manual

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
104 INSTRUMENTS AND CONTROLS
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . 105
Steering Wheel Controls . . . . . . . . . 105
Heated Steering Wheel . . . . . . . . . . 105
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Windshield Wiper/Washer . . . . . . . 106
Rear Window Wiper/Washer . . . . 107
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Power Outlets . . . . . . . . . . . . . . . . . . . . . 109
Wireless Charging . . . . . . . . . . . . . . . . 110
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . 112
Instrument Cluster . . . . . . . . . . . . . . . 113
Speedometer . . . . . . . . . . . . . . . . . . . . . . 116
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 116
Trip Odometer . . . . . . . . . . . . . . . . . . . . 116
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 116
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 117
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Seat Belt Reminders . . . . . . . . . . . . . . 118 Airbag Readiness Light . . . . . . . . . . 119
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 119
Charging System Light . . . . . . . . . . . 120
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 120
Brake System Warning Light . . . . 122
Electric Parking Brake Light . . . . . 122
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 123
All-Wheel-Drive Light . . . . . . . . . . . . 123
Lane Keep Assist (LKA) Light . . . 124
Vehicle Ahead Indicator . . . . . . . . . 124
Pedestrian Ahead Indicator . . . . . . 124
Traction Off Light . . . . . . . . . . . . . . . . 125
StabiliTrak OFF Light . . . . . . . . . . . . 125
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 125
Driver Mode Control Light . . . . . . . 126
Tire Pressure Light . . . . . . . . . . . . . . . 126
Engine Oil Pressure Light . . . . . . . . 126
Low Fuel Warning Light . . . . . . . . . 127
Security Light . . . . . . . . . . . . . . . . . . . . . 127
High-Beam On Light . . . . . . . . . . . . . 127
Lamps On Reminder . . . . . . . . . . . . . 128
Cruise Control Light . . . . . . . . . . . . . . 128
Door Ajar Light . . . . . . . . . . . . . . . . . . . 128
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . 128
Head-Up Display (HUD) . . . . . . . . . 131
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 134
Engine Power Messages . . . . . . . . . . 135
Vehicle Speed Messages . . . . . . . . . 135
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . 135
Universal Remote System
Universal Remote System . . . . . . . . 141
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . 141
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . 143

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
108 INSTRUMENTS AND CONTROLS
INT :Turns on the rear wiper with a
delay between wipes.
ON : Turns on the rear wiper.
1:Push the windshield wiper
lever forward to spray washer fluid on
the rear window. The wipers will clear
the rear window and either stop or
return to your preset speed. For more
washer cycles, push and hold the
lever.
The rear window wiper/washer will
not operate if the liftgate is open or
ajar. If the liftgate is opened while the
rear wiper is on, the wiper returns to
the parked position and stops.
See “Rear Camera Washer” later in this
section.
Rear Wiper Arm Assembly
Protection
When using an automatic car wash,
move the rear wiper control to OFF to
disable the rear wiper. In some
vehicles, if the transmission is in
N (Neutral) and the vehicle speed is
very slow, the rear wiper will
automatically park under the rear
spoiler. The wiper operations return to normal
when the transmission is no longer in
N (Neutral) or the vehicle speed has
increased.
Auto Wipe in Reverse Gear
If the rear wiper control is off, the rear
wiper will automatically operate
continuously when the transmission is
in R (Reverse), and the front
windshield wiper is performing low or
high speed wipes. If the rear wiper
control is off, the transmission is in
R (Reverse), and the front windshield
wiper is performing INT wipes, then
the rear wiper automatically performs
INT wipes.
This feature can be turned on or off.
See
Vehicle Personalization 0135.
The windshield washer reservoir is
used for the windshield, rear window,
and rear mirror camera, if equipped.
See Rear Camera Mirror 034. Check
the fluid level in the reservoir if either
washer is not working. See Washer
Fluid 0273.
Rear Camera Washer
If equipped, push the windshield
wiper lever forward to spray washer
fluid on the rear camera lens. The
lever returns to its starting position
when released. See Rear Camera Mirror
0 34.
Activating the Rear Camera Washer
also cleans the rear window and the
Night Vision Camera, if equipped. See
Night Vision System 0232.
Compass
The vehicle may have a compass
display on the Driver Information
Center (DIC). The compass receives its
heading and other information from
the Global Positioning System (GPS)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
126 INSTRUMENTS AND CONTROLS
SeeTraction Control/Electronic Stability
Control 0200.
Driver Mode Control Light
This light comes on when Sport Mode
is selected.
This light comes on when Snow/Ice
Mode is selected.
This light comes on when Off-Road
Mode is selected.
See Driver Mode Control 0202.
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 0296. 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
0299.
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.
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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
INSTRUMENTS AND CONTROLS 127
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.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.It also comes on when the fuel tank is
low on fuel. The light turns off when
fuel is added. If it does not, have the
vehicle serviced.
Security Light
The security 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 system
is working normally, the indicator
light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. See
Immobilizer Operation
0 31.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use. See
Headlamp High/Low-Beam Changer
0147.
IntelliBeam Light
This light comes on when the
IntelliBeam system, if equipped, is
enabled. See Exterior Lamp Controls
0 144.
If equipped with the Adaptive
Headlight System, both the
High-Beam On Light and the
IntelliBeam Light will display.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
248 DRIVING AND OPERATING
Leaving After Parking on a Hill
1. Apply and hold the brake pedal:.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 used to tow trailers. See
Maintenance Schedule 0333. It is
especially important to check the
automatic transmission fluid, engine
oil, axle lubricant, belts, cooling
system, and brake system before and
during each trip.
Check periodically that all nuts and
bolts on the trailer hitch are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
0 272.
Trailer Towing
Caution
Towing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer for
important information about
towing a trailer with the vehicle.
Trailer Weight
{Warning
Never exceed the towing capacity
for your vehicle. Safe trailering requires monitoring the
weight, speed, altitude, road grades,
outside temperature, dimensions of
the front of the trailer, and how
frequently the vehicle is used to tow a
trailer.
Trailer Weight Ratings
When towing a trailer, the combined
weight of the vehicle, vehicle contents,
trailer, and trailer contents must be
below all of the maximum weight
ratings for the vehicle including:
.
GCWR: Gross Combined Weight
Rating
. GVWR: Gross Vehicle Weight
Rating
. Maximum Trailer Weight Rating
. Maximum Trailer Tongue Weight
See “Weight-Distributing Hitch
Adjustment ”under Towing Equipment
0 252 to determine if equalizer bars
are required to obtain the maximum
trailer weight rating.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
258 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 259
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 259
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 260
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 260
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 260
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 263
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 264
Engine Oil Life System . . . . . . . . . . . 266
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Engine Air Filter Life System . . . . 267
Engine Air Cleaner/Filter . . . . . . . . . 268
Cooling System . . . . . . . . . . . . . . . . . . . 269
Engine Overheating . . . . . . . . . . . . . . 272
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 273
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 275
Battery - North America . . . . . . . . . 276
Starter Switch Check . . . . . . . . . . . . . 276
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 277
Wiper Blade Replacement . . . . . . . 277
Windshield Replacement . . . . . . . . 278
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 279
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 280
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . 280
Electrical System
Electrical System Overload . . . . . . 281
Fuses and Circuit Breakers . . . . . . 281
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Instrument Panel Fuse Block . . . . 285
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
All-Season Tires . . . . . . . . . . . . . . . . . . 290
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 290
Summer Tires . . . . . . . . . . . . . . . . . . . . 291 Tire Sidewall Labeling . . . . . . . . . . . 291
Tire Designations . . . . . . . . . . . . . . . . . 293
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 294
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 296
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . 298
Tire Pressure Monitor System . . . 298
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 299
Tire Inspection . . . . . . . . . . . . . . . . . . . 303
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 303
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Buying New Tires . . . . . . . . . . . . . . . . 305
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Uniform Tire Quality Grading . . . 307
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Wheel Replacement . . . . . . . . . . . . . . 308
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 309
If a Tire Goes Flat . . . . . . . . . . . . . . . . 310
Tire Changing . . . . . . . . . . . . . . . . . . . . . 311
Compact Spare Tire . . . . . . . . . . . . . . 317

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
264 VEHICLE CARE
1.Engine Air Cleaner/Filter 0268.
2. Engine Oil Fill Cap. See Engine Oil
0 264.
3. Engine Oil Dipstick. See Engine
Oil 0264.
4. Engine Cooling Fan (Out of View). See Cooling System 0269.
5. Brake Fluid Reservoir. See Brake
Fluid 0275.
6. Battery - North America 0276.
7. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 269.
8. Positive (+) Battery Terminal (Under Cover). See Jump Starting
- North America 0318.
9. Windshield Washer Fluid Reservoir. See Washer Fluid
0 273.
10. Engine Compartment Fuse Block
0282.
11. Remote Negative (-) Battery Terminal. See Jump Starting -
North America 0318.Engine Oil
To ensure proper engine performance
and long life, careful attention must
be paid to engine oil. Following these
simple, but important steps will help
protect your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil” in
this section.
. Check the engine oil level regularly
and maintain the proper oil level.
See “Checking Engine Oil” and
“When to Add Engine Oil” in this
section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0266.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially prior
to a long trip. The engine oil dipstick handle is a loop. See
Engine
Compartment Overview 0263 for the
location.
{Warning
The engine oil dipstick handle may
be hot; it could burn you. Use a
towel or glove to touch the dipstick
handle.
If a low oil Driver Information Center
(DIC) message displays, check the oil
level.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground. Check
the engine oil level after the
engine has been off for at least
two hours. Checking the engine oil
level on steep grades or too soon
after engine shutoff can result in
incorrect readings. Accuracy
improves when checking a cold
engine prior to starting. Remove
the dipstick and check the level.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
VEHICLE CARE 265
.If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is warm,
or at least 30 minutes if the
engine is not warm. Pull out the
dipstick, wipe it with a clean paper
towel or cloth, then push it back
in all the way. Remove it again,
keeping the tip down, and check
the level.
When to Add Engine Oil
If the oil is below the cross-hatched
area at the tip of the dipstick and the
engine has been off for at least
15 minutes, add 1 L (1 qt) of the
recommended oil and then recheck
the level. See “Selecting the Right
Engine Oil” later in this section for an
explanation of what kind of oil to use.
For engine oil crankcase capacity, see
Capacities and Specifications 0347.
Caution
Do not add too much oil. Oil levels
above or below the acceptable
operating range shown on the
dipstick are harmful to the engine.
If the oil level is above the
operating range (i.e., the engine has
so much oil that the oil level gets
above the cross-hatched area that
shows the proper operating range),
the engine could be damaged. Drain
the excess oil or limit driving of the
vehicle, and seek a service
professional to remove the
excess oil.
See Engine Compartment Overview
0 263 for the location of the engine oil
fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when finished.
Selecting the Right Engine Oil
Selecting the right engine oil depends
on both the proper oil specification
and viscosity grade. See Recommended
Fluids and Lubricants 0343.
Specification
Use full synthetic engine oils that
meet the dexos1 specification. Engine
oils that have been approved by GM
as meeting the dexos1 specification
are marked with the dexos1 approved
logo. See www.gmdexos.com.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
266 VEHICLE CARE
Viscosity Grade
Use SAE 5W-30 viscosity grade
engine oil.
Cold Temperature Operation: In an
area of extreme cold, where the
temperature falls below−29 °C
(−20 °F), an SAE 0W-30 oil may be
used. An oil of this viscosity grade will
provide easier cold starting for the
engine at extremely low temperatures.
When selecting an oil of the
appropriate viscosity grade, it is
recommended to select an oil of the
correct specification. See
“Specification ”earlier in this section.
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 the trash
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. 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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
268 VEHICLE CARE
to change an engine air filter depends
on driving and environmental
conditions.
When to Change the Engine Air
Filter
When the Driver Information Center
(DIC) displays a message to replace
the engine air filter at the next oil
change, follow this timing.
When the DIC displays a message to
replace the engine air filter soon,
replace the engine air filter at the
earliest convenience.
The system must be reset after the
engine air filter is changed.
If the DIC displays a message to check
the engine air filter system, see your
dealer.
How to Reset the Engine Air
Filter Life System
To reset:1. Place the vehicle in P (Park).
2. Display the Air Filter Life on the DIC. See Driver Information Center
(DIC) 0128. 3. Press
Ton the steering wheel to
move to the Reset/Disable
display area. Select Reset then
press the thumbwheel for several
seconds.
4. Press the thumbwheel to confirm the reset.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the passenger
side of the vehicle. See Engine
Compartment Overview 0263.
When to Inspect/Replace the
Engine Air Cleaner/Filter
If the vehicle is not equipped with the
engine air filter life system, see
Maintenance Schedule 0333.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/filter,
make sure that the engine air cleaner/
filter housing and nearby components are free of dirt and debris. Remove the
engine air cleaner/filter. Do not clean
the engine air cleaner/filter or
components with water or
compressed air.
To inspect or replace the engine air
cleaner/filter:
1. Remove the five screws on top of
the engine air cleaner/filter
housing.
2. Lift the air cleaner/filter cover housing away from the engine.
3. Pull out the filter.
4. Inspect or replace the engine air cleaner/filter.