ECU CADILLAC XT6 2023 Workshop Manual

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
424 Vehicle Care
Warning (Continued)
When replacing wheels, use
a new GM original
equipment wheel.
Caution
The wrong wheel can also
cause problems with bearing
life, brake cooling,
speedometer or odometer
calibration, headlamp aim,
bumper height, vehicle
ground clearance, and tire or
tire chain clearance to the
body and chassis.
Tire Chains
{Warning
If the vehicle has 265/45R21
size tires, do not use tire
chains. There is not enough
clearance. Tire chains used
on a vehicle without the
proper amount of clearance(Continued)
Warning (Continued)
can cause damage to the
brakes, suspension, or other
vehicle parts. The area
damaged by the tire chains
could cause loss of control
and a crash. Use another
type of traction device only
if its manufacturer
recommends it for the
vehicle's tire size
combination and road
conditions. Follow that
manufacturer's instructions.
To avoid vehicle damage,
drive slow and readjust or
remove the traction device if
it contacts the vehicle. Do
not spin the wheels. If
traction devices are used,
install them on the front
tires.
Caution
If the vehicle is equipped
with a tire size other than
265/45R21, use tire chains
only where legal and only
when necessary. Use low
profile chains that add no
more than 12 mm thickness
to the tire tread and inner
sidewall. Use chains that are
the proper size for the tires.
Install them on the tires of
the front axle. Do not use
chains on the tires of the
rear axle. Tighten them as
tightly as possible with the
ends securely fastened.
Drive slowly and follow the
chain manufacturer's
instructions. If the chains
contact the vehicle, stop and
retighten them. If the
contact continues, slow
down until it stops. Driving
too fast or spinning the
wheels with chains on will
damage the vehicle.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
432 Vehicle Care
To store the flat tire:
1. Remove the cable packagefrom under the spare tire,
jack, and tools.
2. Remove the small cap by tapping the back of the
cap with the extension of
the shaft, if the vehicle has
aluminum wheels.
3. Put the jack, tool container, and cargo management
system tray back in their
original location. 4. Put the flat tire in the
cargo bin with the valve
stem facing the rear of the
vehicle.
5. Pull the cable through the door striker and the center
of the wheel.
6. Open the lift gate to 3 / 4door location and adjust
the door automatically or
manually until there is
enough space to hook the
cable to the door hinges.
See Liftgate 025. 7. Hook the other end of the
cable onto the outside
portion of the liftgate
hinge on the other side of
the vehicle.
8. Pull on the cable to make sure it is secure.9. Make sure the metal tubeis centered at the striker.
Push the tube toward the
front of the vehicle.
10. Close the liftgate and make sure it is fully
latched.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 437
After starting the disabled
vehicle and removing the
jumper cables, allow it to idle
for several minutes.
Towing the
Vehicle
Transporting a
Disabled Vehicle
Caution
Incorrectly transporting a
disabled vehicle may cause
damage to the vehicle. Use
proper tire straps to secure
the vehicle to the flatbed
tow truck. Do not strap or
hook to any frame,
underbody, or suspension
component not specified
below. Do not move vehicles
with drive axle tires on the
ground. Damage is not
covered by the vehicle
warranty.
Caution
The vehicle may be equipped
with an electric parking
brake and/or an electronic
shifter. In the event of a loss
of 12-volt battery power, the
electric parking brake
cannot be released, and the
vehicle cannot be shifted to
N (Neutral). Tire skates or
dollies must be used under
the non-rolling tires to
prevent damage while
loading/unloading the
vehicle. Dragging the vehicle
will cause damage not
covered by the vehicle
warranty.
Caution
The vehicle may be equipped
with a tow eye. Improper use
of the tow eye may cause
damage to the vehicle and is
not covered by the vehicle
warranty. If equipped, use(Continued)
Caution (Continued)
the tow eye to load the
vehicle onto a flatbed tow
truck from a flat road
surface, or to move the
vehicle a very short distance
at a walking pace. The tow
eye is not designed for
off-road recovery. The
vehicle must be in
N (Neutral) with the electric
parking brake released when
using the tow eye.
Contact a professional towing
service if the disabled vehicle
must be transported. GM
recommends a flatbed tow
truck to transport a disabled
vehicle. Use ramps to help
reduce approach angles,
if necessary.
If equipped, a tow eye may be
located near the spare tire or
emergency jack. Do not use
the tow eye to pull the vehicle
from the snow, mud, sand,
or ditch. Tow eye threads may

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
440 Vehicle Care
Driving onto a Dolly1. Start the vehicle and drive onto the dolly.
2. Place the vehicle in P (Park).
3. Turn off the vehicle.
4. Open the hood.
5. Exit the vehicle and secure the vehicle onto the dolly.
6. Disconnect the negative (–) terminal connector from
the 12-volt battery.
7. Close the hood of the vehicle.
Removing the Vehicle from a
Dolly 1. Make sure the vehicle is secured to the dolly.
2. Open the door and open the hood of the vehicle.
3. Connect the negative (–) terminal connector from
the 12-volt battery.
4. Unsecure the vehicle and remove it from the dolly.Towing the Vehicle from
the RearCaution
Towing the vehicle from the
rear could damage it. Also,
repairs would not be
covered by the vehicle
warranty. Never have the
vehicle towed from the rear.
Do not tow the vehicle 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 0458.
Washing the Vehicle
To preserve the vehicle's
finish, wash it often and out of
direct sunlight.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 451
3. Make sure the floor mat isproperly secured in place.
Verify the floor mat does
not interfere with the
pedals.
Cleaning Rubber Floor
Mats (All-Weather Mats
and Floor Liners)
See “Vinyl/Rubber” under
Interior Care 0446 for
important cleaning
information.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Service and Maintenance 455
may also be needed if you
notice reduced airflow,
windows fogging up,
or odors. Your local GM
Service location can help you
determine when it is the
right time to replace your
filter.
Every 96 000 km (60,000 mi)
.Replace spark plugs. Inspect
spark plug wires and/or
boots. (2.0L Engine)
Every 156 000 km
(97,500 mi)
.Replace spark plugs. Inspect
spark plug wires and/or
boots. (3.6L Engine)
Every 161 000 km
(100,000 mi)
.Replace hood and/or body
lift support gas struts. Or
every 10 years, whichever
comes first. See Gas Strut(s)
0 388. Every 240 000 km
(150,000 mi)
.Change rear axle fluid,
if equipped with AWD. Do
not directly power wash the
transfer case and/or front/
rear axle output seals. High
pressure water can
overcome the seals and
contaminate the transfer
case fluid. Contaminated
fluid will decrease the life of
the transfer case and/or
axles and should be
replaced.
.Drain and fill engine cooling
system. Or every six years,
whichever comes first. See
Cooling System
0376.
Severe Conditions
Requiring More Frequent
Maintenance*
.Public service, military,
or commercial use vehicles
to include the following:
‐ Ambulances, police cars,
and emergency rescue
vehicles. ‐
Civilian vehicles such as
light duty pick-up trucks,
SUVs, and passenger cars
that are used in military
applications.
‐ Recovery vehicles such as
tow trucks and flatbed
single vehicle carriers or
any vehicle that is
consistently used in towing
trailers or other loads.
‐ High use commercial
vehicles such as courier
delivery vehicles, private
security patrol vehicles,
or any vehicles that
operate on a 24–hour
basis.
‐ Any vehicle consistently
operated in a high sand or
dust environment such as
those used on oil pipelines
and similar applications..Vehicles that are regularly
used for short trips of 6 km
(4 mi) or less.
The oil life indicator will show
you when to change the oil
and filter. Under severe

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Service and Maintenance 457
Diagnostics
.OnStar active, if equipped
.Service history/recall check
Engine Oil and Filter
.Engine oil
.Oil life monitor
‐Reset oil life monitor
Exterior Lights
.Visual inspection
Windshield and Wipers
.Visual inspection
Battery
.Battery visual inspection
.Battery test results
.Battery cables and
connections
Systems, Fluids, and
Visible Leak Inspection
.Engine oil
.Transmission
.Drive axle
.Transfer case
.Engine cooling system
.Power steering, if equipped
.Fuel system
.Windshield washer fluid
Tire Inspection
.Tire pressure, tread depth,
and wear
.Rotation, if applicable
.Alignment check, optional
.Reset tire pressure monitor
.Check tire sealant expiration
date, if equipped
.Check spare tire, if equipped
Brakes
.Check brake system
Visible and Functional
Inspections
.Seat belt components
.Exhaust system
.Accelerator pedal
.Passenger compartment air
filter, if equipped
.Engine air filter
.Hoses
.Belts
.Shocks and struts
.Steering components
.Axle boots or driveshaft and
u-joints
.Compartment lift struts,
if equipped
.Floor mats secured, no
interference with pedals
.Horn
.Ignition lock, if equipped
.Starter switch
.Evaporative control system
Lubricate
.Chassis components
Special Application
Services
.Severe Commercial Use
Vehicles Only: Lubricate
chassis components every
oil change.
.Have underbody flushing
service performed. See
"Underbody Maintenance" in
Exterior Care 0440.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
466 Customer Information
Customer
Information
Customer Information
Customer SatisfactionProcedure . . . . . . . . . . . . . . . . . 466
Customer Assistance Offices . . . . . . . . . . . . . . . . . . . . . . 468
Customer Assistance for Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . . 469
Online Account . . . . . . . . . . . . . 469
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . 470
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 470
Scheduling Service Appointments . . . . . . . . . . . . . 472
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . 473
Collision Damage Repair . . . . . . . . . . . . . . . . . . . . . . . 474
Publication Ordering Information . . . . . . . . . . . . . . . . 476
Radio Frequency Statement . . . . . . . . . . . . . . . . . . 477
Reporting Safety Defects
Reporting Safety Defectsto the United States
Government . . . . . . . . . . . . . . . 478
Reporting Safety Defects to the Canadian
Government . . . . . . . . . . . . . . . 478
Reporting Safety Defects to General Motors . . . . . . . 478
Vehicle Data Recording
and Privacy
Vehicle Data Recordingand Privacy . . . . . . . . . . . . . . . . 479
Cybersecurity . . . . . . . . . . . . . . 479
Event Data Recorders . . . 480
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 481
Infotainment System . . . . . . 481
Customer
Information
Customer
Satisfaction
Procedure
Your satisfaction and goodwill
are important to your dealer
and to Cadillac. Normally, any
concerns with the sales
transaction or the operation
of the vehicle will be resolved
by your dealer's sales or
service departments.
Sometimes, however, despite
the best intentions of all
concerned, misunderstandings
can occur. If your concern has
not been resolved to your
satisfaction, the following
steps should be taken:
STEP ONE : Discuss your
concern with a member of
dealership management.
Normally, concerns can be
quickly resolved at that level.
If the matter has already been
reviewed with the sales,

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Customer Information 471
In the U.S., anyone driving the
vehicle is covered. In Canada,
a person driving the vehicle
without permission from the
owner is not covered.
Roadside Assistance is not a
part of the New Vehicle
Limited Warranty. General
Motors North America and
Cadillac reserve the right to
make any changes or
discontinue the Roadside
Assistance program at any
time without notification.
General Motors North America
and Cadillac reserve the right
to limit services or payment to
an owner or driver if they
decide the claims are made
too often, or the same type of
claim is made many times.
Cadillac Owner
Privileges™
.Emergency Fuel Delivery:
Delivery of enough fuel for
the vehicle to get to the
nearest service station.
.Lock-Out Service:Service
to unlock the vehicle if you
are locked out. A remote
unlock may be available if
you have OnStar. For
security reasons, the driver
must present identification
before this service is given.
.Emergency Tow from a
Public Road or Highway:
Tow to the nearest Cadillac
dealer for warranty service,
or if the vehicle was in a
crash and cannot be driven.
Assistance is not given when
the vehicle is stuck in the
sand, mud, or snow.
.Flat Tire Change: Service to
change a flat tire with a
spare tire. The spare tire,
if equipped, must be in good
condition and properly
inflated. It is your
responsibility for the repair
or replacement of the tire if
it is not covered by the
warranty.
.Battery Jump Start: Service
to jump start a dead battery.
.Trip Interruption Benefits
and Service: If your trip is
interrupted due to a
warranty failure, incidental
expenses may be
reimbursed during the
Powertrain warranty period.
Items considered are hotel,
meals, and rental car or a
vehicle being delivered back
to the customer, up to
500 miles.
Cadillac Technician
Roadside Assistance
(U.S. Only)
Cadillac's exceptional
Roadside Assistance is more
than an auto club or towing
service. It provides every
Cadillac owner in the United
States with the advantage of
contacting a Cadillac advisor
and, where available, a Cadillac
trained dealer technician who
can provide on-site service.
A dealer technician will travel
to your location within a
30-mile radius of a
participating Cadillac

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Customer Information 479
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
General Motors of Canada
Company
500 Wentworth Street W
Oshawa, ON L1J 0C5
In Mexico, call 800-466-0805
or 800-212-234-5522.
In other Central America and
Caribbean Countries, call
52-555-901-2369.
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.
Cybersecurity
GM collects information about
the use of your vehicle
including operational and
safety related information. We
collect this information to
provide, evaluate, improve, and
troubleshoot our products and
services and to develop new
products and services. The
protection of vehicle
electronics systems and
customer data from
unauthorized outside
electronic access or control is
important to GM. GM
maintains appropriate security
standards, practices,
guidelines and controls aimed
at defending the vehicle and
the vehicle service ecosystem
against unauthorized
electronic access, detecting
possible malicious activity in
related networks, and
responding to suspected
cybersecurity incidents in a
timely, coordinated and
effective manner. Security
incidents could impact your
safety or compromise your
private data. To minimize
security risks, please do not
connect your vehicle
electronic systems to
unauthorized devices or