Transmission CADILLAC XT6 2020 Service Manual

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
VEHICLE CARE 321
GM recommends a flatbed tow truck
to transport a disabled vehicle. Use
ramps to help reduce approach angles,
if necessary. A towed vehicle should
have its drive wheels off the ground.
Contact Roadside Service or a
professional towing service if the
disabled vehicle must be towed.
If the vehicle is equipped with a tow
eye, only use the tow eye to pull the
vehicle onto a flatbed car carrier from
a flat road surface. Do not use the tow
eye to pull the vehicle from snow,
mud, or sand.
Front Attachment PointsThe vehicle is equipped with specific
attachment points to be used by the
towing provider. These holes may be
used to pull the vehicle from a flat
road surface onto the flat bed tow
truck.
Recreational Vehicle
Towing
Recreational vehicle towing means
towing the vehicle behind another
vehicle, such as behind a motor home.
The two most common types of
recreational vehicle towing are known
as dinghy towing and dolly towing.
Dinghy towing is towing the vehicle
with all four wheels on the ground.
Dolly towing is towing the vehicle
with two wheels on the ground and
two wheels up on a device known as a
dolly.
Here are some important things to
consider before recreational vehicle
towing:
.Become familiar with the local
laws that apply to recreational
vehicle towing. These laws may
vary by region. .
The towing capacity of the towing
vehicle. Be sure to read the tow
vehicle manufacturer's
recommendations.
. How far the vehicle will be towed.
Some vehicles have restrictions on
how far and how long they can be
towed.
. The proper towing equipment. See
your dealer or trailering
professional for additional advice
and equipment recommendations.
. If the vehicle is ready to be towed.
Just as preparing the vehicle for a
long trip, make sure the vehicle is
prepared to be towed.
Caution
Use of a shield mounted in front of
the vehicle grille could restrict
airflow and cause damage to the
transmission. The repairs would not
be covered by the vehicle warranty.
If using a shield, only use one that
attaches to the towing vehicle.

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
358 CUSTOMER INFORMATION
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends that
you take an active role in its repair.
If you have a pre-determined repair
facility of choice, take the vehicle
there, or have it towed there. Specify
to the facility that any required
replacement collision parts be original
equipment parts, either new Genuine
GM parts or recycled original GM
parts. Remember, recycled parts will
not be covered by the GM vehicle
warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits, your
insurance company may initially value
the repair using aftermarket parts.
Discuss this with the repair
professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have
the vehicle repaired with Genuine GM
parts, even if your insurance coverage
does not pay the full cost.If another party's insurance company
is paying for the repairs, you are not
obligated to accept a repair valuation
based on that insurance company's
collision policy repair limits, as you
have no contractual limits with that
company. In such cases, you can have
control of the repair and parts choices
as long as the cost stays within
reasonable limits.
Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the engine,
transmission, axle, suspension, brakes,
electrical system, steering system,
body, etc.
Customer Literature
Owner’s manuals are written
specifically for owners and are
intended to provide basic operational
information about the vehicle. The
owner’s manual includes the
Maintenance Schedule for all models.Customer literature publications
available for purchase include owner’s
manuals, warranty manuals,
infotainment manuals, and portfolios.
Portfolios include an owner’s manual,
warranty manual, infotainment
manual, if applicable, and zip lock bag
or pouch.
Current and Past Models
Service manuals and customer
literature are available for many
current and past model year GM
vehicles.
To order, call 1-800-551-4123
Monday–Friday, 8:00 a.m.–6:00 p.m.
eastern time
For credit card orders only (VISA,
MasterCard, or Discover), see Helm,
Inc. at: www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S. funds.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
360 CUSTOMER INFORMATION
Reporting Safety Defects
to the Canadian
Government
If you live in Canada, and you
believe that the vehicle has a
safety defect, notify Transport
Canada immediately, and notify
General Motors of Canada
Company. Call Transport Canada
at 1-800-333-0510; go to:
www.tc.gc.ca/recalls (English)
www.tc.gc.ca/rappels (French)
or write to:
Transport Canada
Motor Vehicle Safety Directorate
Defect Investigations and Recalls
Division
80 Noel Street
Gatineau
,QC J8Z 0A1
Reporting Safety Defects
to General Motors
In addition to notifying NHTSA (or
Transport Canada) in a situation like
this, notify General Motors.
In the U.S., call 1-800-458-8006,
or write:
Cadillac Customer Assistance Center
Cadillac Motor Car Division
P.O. Box 33169
Detroit, MI 48232-5169
In Canada, call 1-888-446-2000,
or write:
Canadian Cadillac Customer Care
Centre, Mail Code: CA1-163-005
General Motors of Canada Company
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
In Mexico, call 01-800-466-0805 or
01-800-212-234-5522.
In other Central America and
Caribbean Countries, call
52-722-236-0680.
Vehicle Data Recording
and Privacy
The vehicle has a number of
computers that record information
about the vehicle’s performance and
how it is driven or used. For example,
the vehicle uses computer modules to
monitor and control engine and
transmission performance, to monitor
the conditions for airbag deployment
and deploy them in a crash, and,
if equipped, to provide antilock
braking to help the driver control the
vehicle. These modules may store data
to help the dealer technician service
the vehicle or to help GM improve
safety or features. Some modules may
also store data about how the vehicle
is operated, such as rate of fuel
consumption or average speed. These
modules may retain personal
preferences, such as radio presets, seat
positions, and temperature settings.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-12984300) -
2020 - CRC - 3/19/19
368 ONSTAR
Third parties may unlawfully intercept
or access transmissions and private
communications without consent.
OnStar - Software
Acknowledgements
Certain OnStar components include
libcurl and unzip software and other
third party software. Below are the
notices and licenses associated with
libcurl and unzip and for other third
party software please see http://
opensource.lge.com/index
www.onstar.com/us/en/
libcurl:
COPYRIGHT AND PERMISSION
NOTICE
Copyright (c) 1996 - 2010, Daniel
Stenberg, .
All rights reserved.
Permission to use, copy, modify, and
distribute this software for any
purpose with or without fee is hereby
granted, provided that the above
copyright notice and this permission
notice appear in all copies.THE SOFTWARE IS PROVIDED
“AS
IS,” WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO
THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND
NONINFRINGEMENT OF THIRD
PARTY RIGHTS. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the
name of a copyright holder shall not
be used in advertising or otherwise to
promote the sale, use or other
dealings in this Software without prior
written authorization of the copyright
holder. unzip:
This is version 2005-Feb-10 of the
Info-ZIP copyright and license. The
definitive version of this document
should be available at ftp://
ftp.info-zip.org/pub/infozip/
license.html indefinitely.
Copyright (c) 1990-2005 Info-ZIP. All
rights reserved.
For the purposes of this copyright and
license,
“Info-ZIP” is defined as the
following set of individuals:
Mark Adler, John Bush, Karl Davis,
Harald Denker, Jean-Michel Dubois,
Jean-loup Gailly, Hunter Goatley, Ed
Gordon, Ian Gorman, Chris Herborth,
Dirk Haase, Greg Hartwig, Robert
Heath, Jonathan Hudson, Paul Kienitz,
David Kirschbaum, Johnny Lee, Onno
van der Linden, Igor Mandrichenko,
Steve P. Miller, Sergio Monesi, Keith
Owens, George Petrov, Greg Roelofs,
Kai Uwe Rommel, Steve Salisbury,
Dave Smith, Steven M. Schweda,
Christian Spieler, Cosmin Truta,
Antoine Verheijen, Paul von Behren,
Rich Wales, Mike White.

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