2023 CADILLAC XT6 ECO mode

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
380 Vehicle Care
coolant surge tank until
the level reaches the mark
pointed to on the front of
the coolant surge tank.
5. Replace the pressure cap tightly.
6. Verify coolant level after the engine is shut off and
the coolant is cold.
If necessary, repeat
coolant fill procedure
Step 1–6.
Caution
If the pressure cap is not
tightly installed, coolant loss
and engine damage may
occur. Be sure the cap is
properly and tightly secured.
Automatic Coolant
Service Fill Instructions
(2.0L Engine Only)
If equipped, this feature
assists in filling and removing
air from the cooling system
after service of components
or when coolant is added after
being too low. To activate the fill and air
removal process:
1. With a cold system,
disconnect the vent line
from the port near the cap
on the surge tank. Add
coolant to the indicated
mark on the surge tank.
2. Reconnect the vent line to the surge tank and replace
the cap on the surge tank.
3. Connect the vehicle to a battery charger.
4. Put the vehicle in Service Mode. See Ignition
Positions 0257. 5. Turn off the air
conditioning.
6. Set the parking brake.
7. At the same time, press the accelerator and the
brake for automatic
transmission vehicles for
two seconds, then release.
At the end of the cycle, check
the coolant level in the surge
tank and add coolant, if it is
low. Turn off the vehicle, allow
the Engine Control Module
(ECM) to go to sleep, about
two minutes, and repeat
steps 3-7.
Listen for pump activation and
movement of the control
valves while watching the level
of the tank. If the tank
empties, turn the ignition off,
carefully remove the surge
tank cap, refill to the indicated
mark and repeat steps 3-6.
The fill and air removal
process will run for
approximately 10 minutes.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 407
Maximum Load Rating:
The load rating for a tire at
the maximum permissible
inflation pressure for
that tire.
Occupant Distribution
:
Designated seating
positions.
Outward Facing Sidewall
:
The side of an
asymmetrical tire that has
a particular side that faces
outward when mounted on
a vehicle. The side of the
tire that contains a
whitewall, bears white
lettering, or bears
manufacturer, brand, and/
or model name molding
that is higher or deeper
than the same moldings on
the other sidewall of
the tire.Passenger (P-Metric)
Tire
:A tire used on
passenger cars and some
light duty trucks and
multipurpose vehicles.
Recommended Inflation
Pressure
:Vehicle
manufacturer's
recommended tire inflation
pressure as shown on the
tire placard. See Tire
Pressure 0408 and
Vehicle Load Limits 0252.
Radial Ply Tire
:A
pneumatic tire in which the
ply cords that extend to
the beads are laid at
90 degrees to the
centerline of the tread.
Rim
:A metal support for a
tire and upon which the tire
beads are seated. Sidewall
:The portion of a
tire between the tread and
the bead.
Speed Rating
:An
alphanumeric code
assigned to a tire indicating
the maximum speed at
which a tire can operate.
Traction
:The friction
between the tire and the
road surface. The amount
of grip provided.
Tread
:The portion of a
tire that comes into
contact with the road.
Treadwear Indicators
:
Narrow bands, sometimes
called wear bars, that show
across the tread of a tire
when only 1.6 mm (1/16 in)
of tread remains. See
When It Is Time for New
Tires 0418.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
416 Vehicle Care
2. Place the vehicle in ServiceMode. See Ignition
Positions 0257.
3. Make sure the Tire Pressure info display
option is turned on. The
info displays on the DIC
can be turned on and off
through the Options menu.
See Driver Information
Center (DIC) 0144.
4. Use the five-way DIC control on the right side of
the steering wheel to scroll
to the Tire Pressure
screen under the DIC info
page. See Driver
Information Center (DIC)
0144.
5. Press and hold the thumbwheel in the center
of the five-way DIC control.
The horn sounds twice to
signal the receiver is in
relearn mode and the TIRE
LEARNING ACTIVE
message displays on the
DIC screen. 6. Start with the driver side
front tire.
7. Place the relearn tool against the tire sidewall,
near the valve stem. Then
press the button to
activate the TPMS sensor.
A horn chirp confirms that
the sensor identification
code has been matched to
this tire and wheel
position.
8. Proceed to the passenger side front tire, and repeat
Step 7.
9. Proceed to the passenger side rear tire, and repeat
Step 7.
10. Proceed to the driver side rear tire, and repeat
Step 7. The horn sounds
two times to indicate the
sensor identification code
has been matched to the
driver side rear tire, and
the TPMS sensor matching
process is no longer active.
The TIRE LEARNING ACTIVE message on the
DIC display screen
goes off.
11. Turn the vehicle off.
12. Set all four tires to the recommended air pressure
level as indicated on the
Tire and Loading
Information label.
Tire Inspection
We recommend that the
tires, including the spare
tire, if the vehicle has one,
be inspected for signs of
wear or damage at least
once a month.
Replace the tire if:
.The indicators at three or
more places around the
tire can be seen.
.There is cord or fabric
showing through the
tire's rubber.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
438 Vehicle Care
have right or left-hand
threads. Use caution when
installing or removing the
tow eye.
The vehicle must be in
N (Neutral) and the electric
parking brake must be
released when loading the
vehicle onto a flatbed tow
truck.
.If the vehicle is equipped
with car wash mode and has
12-volt battery power, refer
to“Car Wash Mode” under
Automatic Transmission
0 266 to place the vehicle in
N (Neutral).
.If the 12-volt battery is dead
and/or the engine will not
start, the vehicle will not
move. Try to jump start the
vehicle. Refer to Jump
Starting - North America
0 434 and if the jump start is
successful, retry the “Car
Wash Mode” procedure.
.If jump starting is
unsuccessful, the vehicle will
not move. Tire skates or dollies must be used under
the non-rolling tires to
prevent vehicle damage.
Front Attachment Points
The 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
flatbed 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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
476 Customer Information
Give only the necessary
information to police and other
parties involved in the crash.
For emergency towing, see
Roadside Assistance Program
0470.
Gather the following
information:
.Driver name, address, and
telephone number
.Driver license number
.Owner name, address, and
telephone number
.Vehicle license plate number
.Vehicle make, model, and
model year
.Vehicle Identification
Number (VIN)
.Insurance company and
policy number
.General description of the
damage to the other vehicle
Choose a reputable repair
facility that uses quality
replacement parts. See
“Collision Parts” earlier in this
section. If the airbag has inflated, see
What Will You See after an
Airbag Inflates?
076.
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/
propulsion, transmission, axle,

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Customer Information 477
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,
and portfolios. Portfolios
include an owner’s manual,
warranty 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.
Radio Frequency
Statement
This vehicle uses
license-exempt transmitters /
receivers / systems that
operate on a radio frequency
that complies with Part 15/
Part 18 of the Federal
Communications Commission
(FCC) rules and with
Innovation, Science andEconomic Development (ISED)
Canada's license-exempt
RSS(s) / RSP-100 / ICES-GEN.
Operation is subject to the
following two conditions:
1. The device may not cause harmful interference.
2. The device must accept any interference received,
including interference that
may cause undesired
operation of the device.
Changes or modifications to
any of these systems by other
than an authorized service
facility could void
authorization to use this
equipment.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
INDEX 495
Customer SatisfactionProcedure . . . . . . . . . . . . . . . . . . . 466
Cybersecurity . . . . . . . . . . . . . . . . 479
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . . . . . . . 474
Danger, Warning, and Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dashboard . . . . . . . . . . . . . . . . . . . . . . . . . 5
Data Collection Infotainment System . . . . . . 481
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 481
Data Recorders, Event . . . . 480
Database Coverage Explanations . . . . . . . . . . . . . . . . . 194
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . 159
Defensive Driving . . . . . . . . . . . . 240
Delayed Locking . . . . . . . . . . . . . . . 23
Destination . . . . . . . . . . . . . . . . . . . . . 185
Diagnostics Connected Services . . . . . . . 491
Disabled Vehicle Transporting . . . . . . . . . . . . . . . . 437
Distracted Driving . . . . . . . . . . . 240
Dome Lamps . . . . . . . . . . . . . . . . . . . .161 Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 144
Delayed Locking . . . . . . . . . . . . . 23
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power Locks . . . . . . . . . . . . . . . . . . 23
Drive Belt Routing, Engine . . . . . . . . . . . . . . . . . . . . . . . . . 465
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . 273
Driver Assistance Systems . . . . . . . 312
Information
Center (DIC) . . . . . . . . . . . . . . . . 144
Mode Control . . . . . . . . . . . . . . . . 278
Mode Control Light . . . . . . . . 141
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Driving Assistance Systems . . . . . . 326
Better Fuel Economy . . . . . 239
Characteristics andTowing Tips . . . . . . . . . . . . . . . 347
Defensive . . . . . . . . . . . . . . . . . . . . 240
Distracted . . . . . . . . . . . . . . . . . . . 240
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . 249
If the Vehicle is Stuck . . . . . 251
Impaired . . . . . . . . . . . . . . . . . . . . . . . 241
Loss of Control . . . . . . . . . . . . 243 Driving (cont'd)
Off-Road . . . . . . . . . . . . . . . . . . . . . 244
Off-Road Recovery . . . . . . . 243
Vehicle Load Limits . . . . . . . 252
Wet Roads . . . . . . . . . . . . . . . . . . 248
Winter . . . . . . . . . . . . . . . . . . . . . . . . 250
Dual
Automatic ClimateControl System . . . . . . . . . . . 228
E
ElectricBrake Boost . . . . . . . . . . . . . . . . . . 273
Parking Brake . . . . . . . . . . . . . . . 274
Parking Brake Light . . . . . . . 137
Electrical Equipment, Add-On . . . . . . . 360
System Overload . . . . . . . . . . 390
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . . 392
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . . . . 391
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . 396
Rear Compartment
Fuse Block . . . . . . . . . . . . . . . . . 398

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
INDEX 499
Lights (cont'd)Traction Off . . . . . . . . . . . . . . . . . . 140
Lock Steering Column . . . . . . . . . . . . . 35
Locks Automatic Door . . . . . . . . . . . . . . 23
Delayed Locking . . . . . . . . . . . . . 23
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Lockout Protection . . . . . . . . . 24
Power Door . . . . . . . . . . . . . . . . . . . 23
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Loss of Control . . . . . . . . . . . . . . 243
Low Fuel Warning Light . . . . 142
Lower Anchors and
Tethers for Children
(LATCH System) . . . . . . . . . . . . . 92
Lumbar Adjustment . . . . . . . . . . 50 Front Seats . . . . . . . . . . . . . . . . . . . 50
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . 461
Maintenance Schedule . . . . 454 Recommended Fluidsand Lubricants . . . . . . . . . . . 458
Malfunction
Indicator Lamp . . . . . . . . . . . . . . 134 Manual
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Map Data Updates . . . . . . . . . . . 194
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Media Avoiding UntrustedDevices . . . . . . . . . . . . . . . . . . . . . . 176
Memory Seats . . . . . . . . . . . . . . . . . . 50
Messages Engine Power . . . . . . . . . . . . . . . 151
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 151
Vehicle Speed . . . . . . . . . . . . . . . 152
Mirrors Automatic Dimming . . . . . . . . . 38
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . 39
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 37
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Interior Rearview . . . . . . . . . . . . 39
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Rear Camera . . . . . . . . . . . . . . . . . . 39
Tilt in Reverse . . . . . . . . . . . . . . . . 38
Mode Driver Control . . . . . . . . . . . . . . . 278
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . .411
Multi-band Antenna . . . . . . . . . . 175 Multi-Point Vehicle
Inspection (MPVI) . . . . . . . . . . 456
N
Navigation
Connected Services . . . . . . 489
Destination . . . . . . . . . . . . . . . . . . . 185
Symbols . . . . . . . . . . . . . . . . . . . . . . . 184
Using the System . . . . . . . . . . 180
Net, Convenience . . . . . . . . . . . . .114
New Vehicle Break-In . . . . . . 256
Night Vision System . . . . . . . . 333
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 130 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Off-Road
Driving . . . . . . . . . . . . . . . . . . . . . . . . 244
Recovery . . . . . . . . . . . . . . . . . . . . . 243
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 370
Engine Oil LifeSystem . . . . . . . . . . . . . . . . . . . . . . 373
Pressure Light . . . . . . . . . . . . . . 142
Older Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 85
Online Account . . . . . . . . . . . . . . . 469
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . 481
Additional Information . . . 484