automatic transmission CADILLAC XT6 2020 Owner's Guide

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
294 VEHICLE CARE
(1) Passenger (P-Metric) Tire:
The United States version of a
metric tire sizing system. The
letter“P”as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire and
Rim Association.
(2) Tire Width
:The three-digit
number indicates the tire section
width in millimeters from sidewall
to sidewall.
(3) Aspect Ratio
:A two-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size aspect
ratio is 60, as shown in item (3) of
the illustration, it would mean
that the tire's sidewall is
60 percent as high as it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire. The
letter “R”means radial ply
construction; the letter “D”means
diagonal or bias ply construction. (5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the tire.
The load index represents the load
carrying capacity a tire is certified
to carry. The speed rating is the
maximum speed a tire is certified
to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of air
inside the tire pressing outward
on each square inch of the tire.
Air pressure is expressed in kPa
(kilopascal) or psi (pounds per
square inch).
Accessory Weight
:The combined
weight of optional accessories.
Some examples of optional
accessories are automatic
transmission, power windows,
power seats, and air conditioning. Aspect Ratio
:The relationship of
a tire's height to its width.
Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in
which the plies are laid at
alternate angles less than
90 degrees to the centerline of the
tread.
Cold Tire Pressure
:The amount
of air pressure in a tire, measured
in kPa (kilopascal) or psi (pounds
per square inch) before a tire has
built up heat from driving. See
Tire Pressure 0296.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
VEHICLE CARE 311
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. SeeHazard Warning
Flashers 0148.
{Warning
Changing a tire can be dangerous.
The vehicle can slip off the jack and
roll over or fall causing injury or
death. Find a level place to change
the tire. To help prevent the vehicle
from moving:
1. Set the parking brake firmly.
2. Put an automatictransmission in P (Park) or a
manual transmission in
1 (First) or R (Reverse).
3. Turn off the engine and do not restart while the vehicle
is raised.
4. Do not allow passengers to remain in the vehicle.
(Continued)
Warning (Continued)
5. Place wheel blocks,if equipped, on both sides of
the tire at the opposite corner
of the tire being changed.
When the vehicle has a flat tire (2),
use the following example as a guide
to assist in the placement of the
wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains
how to repair or change a tire.
Tire Changing
Removing the Spare Tire and
Tools
To access the spare tire and tools: 1. Open the liftgate. See Liftgate
0 21.
2. Lift the load floor.
3. Remove the cargo management system tray (2) by pulling on the
handles (1). See Cargo
Management System 0101.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
SERVICE AND MAINTENANCE 335
.Check restraint system
components. See Safety System
Check 062.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for loose
or damaged parts.
. Lubricate body components. See
Exterior Care 0324.
. Check starter switch. See Starter
Switch Check 0276.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check 0277.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed. .
Visually inspect gas strut for signs
of wear, cracks, or other damage.
Check the hold open ability of the
strut. If the hold open ability is
low, service the gas strut. See Gas
Strut(s) 0279.
. Inspect sunroof track and seal,
if equipped. See Sunroof039.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
338 SERVICE AND MAINTENANCE
Maintenance Schedule
Additional Required Services -
Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check
engine oil level and oil life percentage. Change
engine oil and filter, if needed. Check engine air
filter life percentage and status. Change engine air
filter, if needed.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
If the vehicle is not equipped with the engine air
filter life system, replace engine air cleaner filter. (3)@@@
Change automatic transmission fluid.@@@
Replace spark plugs. Inspect spark plug wires.@
Change rear axle fluid, if equipped with AWD. (4)@ @
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (9)@@
Replace air conditioning desiccant. (10)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
SERVICE AND MAINTENANCE 343
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Chassis Lubrication Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant
meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See
Cooling System 0269.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil0264.
Fuel Additive Fuel System Treatment PLUS (Part No. 88865595).
Hood and Door Hinges, Key Lock Cylinders Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19353127).
Power Liftgate Actuator Ball Joint, Hood Latch Assembly, Secondary Latch,
Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668, in Canada 89021674) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or equivalent.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
348 TECHNICAL DATA
Engine Specifications
EngineVIN CodeTransmission Spark Plug Gap
3.6L V6 Engine SAutomatic0.80–0.90 mm (0.031–0.035 in)
Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage the
spark plug.
Engine Drive Belt Routing
3.6L V6 Engine

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
374 INDEX
Auto StopStop/Start System . . . . . . . . . . . . . . . . 182
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . . 34
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Emergency Braking (AEB) . . . . . . . . 229
Headlamp System . . . . . . . . . . . . . . . . 147
Transmission . . . . . . . . . . . . . . . . . . . . . . 190
Transmission Fluid . . . . . . . . . . . . . . . 267
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . 195
B
Battery
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Power Protection . . . . . . . . . . . . . . . . . . 151
Battery - North America . . . . . .276, 318
Blade Replacement, Wiper . . . . . . . . . 277
Brake Electric Boost . . . . . . . . . . . . . . . . . . . . . 197
Parking, Electric . . . . . . . . . . . . . . . . . . 198
System Warning Light . . . . . . . . . . . . 122
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 Braking (cont'd)
Automatic Emergency (AEB) . . . . . 229
Braking System Front Pedestrian (FPB) . . . . . . . . . . . 230
Break-In, New Vehicle . . . . . . . . . . . . . . 180
Bulb Replacement Headlamp Aiming . . . . . . . . . . . . . . . . 280
Buying New Tires . . . . . . . . . . . . . . . . . . . 305
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 108
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 260
California Proposition 65 Warning . . . . . . . . . . . . .259, 276, 318, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 2
Capacities and Specifications . . . . . . 347
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 189
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Winter Driving . . . . . . . . . . . . . . . . . . . . 174
Cargo
Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Management System . . . . . . . . . . . . . 101
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . 101
Caution, Danger, and Warning . . . . . . . . 3 Center Console Storage . . . . . . . . . . . . . . 98
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 309
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Charging System Light . . . . . . . . . . . . . 120
Check Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 120
Child Restraints Infants and Young Children . . . . . . . . 77
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Older Children . . . . . . . . . . . . . . . . . . . . . . 75
Securing . . . . . . . . . . . . . . . . . . . . . . . . .90, 92
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 281
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . . . . . . 324
Interior Care . . . . . . . . . . . . . . . . . . . . . . 328
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . 153
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Cluster, Instrument . . . . . . . . . . . . . . . . . 113
Collision Damage Repair . . . . . . . . . . . 356
Compact Spare Tire . . . . . . . . . . . . . . . . . 317
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
376 INDEX
E
Electric Brake Boost . . . . . . . . . . . . . . . . 197
Electric Parking Brake . . . . . . . . . . . . . . 198
Electric Parking Brake Light . . . . . . . 122
Electrical Equipment, Add-On . . . . . 256
Electrical SystemEngine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Fuses and Circuit Breakers . . . . . . . 281
Instrument Panel Fuse Block . . . . 285
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 268
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 120
Compartment Overview . . . . . . . . . . 263
Coolant Temperature Gauge . . . . . 117
Cooling System . . . . . . . . . . . . . . . . . . . 269
Drive Belt Routing . . . . . . . . . . . . . . . . 348
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Oil Life System . . . . . . . . . . . . . . . . . . . . 266
Oil Pressure Light . . . . . . . . . . . . . . . . . 126
Overheating . . . . . . . . . . . . . . . . . . . . . . . 272 Engine (cont'd)
Power Messages . . . . . . . . . . . . . . . . . . 135
Running While Parked . . . . . . . . . . . 190
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Engine Air Filter Life System . . . . . . 267
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 151
Equipment, Towing . . . . . . . . . . . . . . . . . 252
Event Data Recorders . . . . . . . . . . . . . . 361
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 151
Extended Parking . . . . . . . . . . . . . . . . . . . 189
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 62
Exterior Lamp Controls . . . . . . . . . . . . 144
Exterior Lamps Off Reminder . . . . . . 147
Exterior Lighting Battery Saver . . . . 151
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 268
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 147
Flashers, Hazard Warning . . . . . . . . . . 148
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Fluid Automatic Transmission . . . . . . . . . 267
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 33 Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Front Seats
Heated and Ventilated . . . . . . . . . . . . . 48
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Economy, Driving for Better . . . . . 165
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . . . . . 244
Filling the Tank . . . . . . . . . . . . . . . . . . . 242
Foreign Countries . . . . . . . . . . . . . . . . . 242
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Low Fuel Warning Light . . . . . . . . . 127
Management, Active . . . . . . . . . . . . . . 188
Prohibited Fuels . . . . . . . . . . . . . . . . . . 241
Recommended . . . . . . . . . . . . . . . . . . . . 241
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Fuses and Circuit Breakers . . . . . . . 281
Instrument Panel Fuse Block . . . . 285
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
382 INDEX
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 290
Buying New Tires . . . . . . . . . . . . . . . . . 305
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Compact Spare . . . . . . . . . . . . . . . . . . . . 317
Designations . . . . . . . . . . . . . . . . . . . . . . 293
Different Size . . . . . . . . . . . . . . . . . . . . . . 306
If a Tire Goes Flat . . . . . . . . . . . . . . . . 310
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 303
Pressure . . . . . . . . . . . . . . . . . . . . . . 296, 298
Pressure Light . . . . . . . . . . . . . . . . . . . . . 126
Pressure Monitor Operation . . . . . . 299
Pressure Monitor System . . . . . . . . 298
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Sidewall Labeling . . . . . . . . . . . . . . . . . 291
Terminology and Definitions . . . . 294
Uniform Tire Quality Grading . . . . 307
Wheel Alignment and TireBalance . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Wheel Replacement . . . . . . . . . . . . . . 308
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . 241
Towing Driving Characteristics . . . . . . . . . . . 244 Towing (cont'd)
Equipment . . . . . . . . . . . . . . . . . . . . . . . . 252
General Information . . . . . . . . . . . . . . 244
Recreational Vehicle . . . . . . . . . . . . . . 321
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Trailer Sway Control (TSC) . . . . . . . 255
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Traction Control System
(TCS)/StabiliTrak Light . . . . . . . . . 125
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . 200
Trailer
Sway Control (TSC) . . . . . . . . . . . . . . . 255
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 190
Fluid, Automatic . . . . . . . . . . . . . . . . . . 267
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 116
Turn and Lane-Change Signals . . . . 148
U
Uniform Tire Quality Grading . . . . . . 307
Universal Remote System . . . . . . . . . . 141 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Universal Remote System (cont'd)
Programming . . . . . . . . . . . . . . . . . . . . . . 141
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . 29
Canadian Owners . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Identification Number (VIN) . . . . . 346
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 176
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Personalization . . . . . . . . . . . . . . . . . . . 135
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . 15
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Speed Messages . . . . . . . . . . . . . . . . . . . 135
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Vehicle Ahead Indicator . . . . . . . . . . . . 124
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 296
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Vehicle Security Steering Column Lock . . . . . . . . . . . . . . 31
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 162
Video Recorder . . . . . . . . . . . . . . . . . . . . . . 239
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39