
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Seats and Restraints 85
Child Restraints
Older Children
Older children who have
outgrown booster seats
should wear the vehicle’s seat
belts. Refer to How to Wear
Seat Belts Properly063.
The manufacturer instructions
that come with the booster
seat state the weight and
height limitations for that
booster. Use a booster seat
with a lap-shoulder belt until
the child passes the fit test
below:
.Sit all the way back on the
seat. Do the knees bend at
the seat edge? If yes,
continue. If no, return to the
booster seat.
.Buckle the lap-shoulder belt.
Does the shoulder belt rest
on the shoulder? If yes,
continue. If no, try using the
rear seat belt comfort guide,
if available. See “Rear Seat
Belt Comfort Guides” under
Lap-Shoulder Belt 066. If a
comfort guide is not
available, or if the shoulder
belt still does not rest on the
shoulder, then return to the
booster seat.
.Does the lap belt fit low and
snug on the hips, touching
the thighs? If yes, continue.
If no, return to the
booster seat.
.Can proper seat belt fit be
maintained for the length of
the trip? If yes, continue.
If no, return to the
booster seat. Q: What is the proper way to
wear seat belts?
A: An older child should wear a
lap-shoulder belt and get
the additional restraint a
shoulder belt can provide.
The shoulder belt should
not cross the face or neck.
The lap belt should fit
snugly below the hips, just
touching the top of the
thighs. This applies belt
force to the child's pelvic
bones in a crash. It should
never be worn over the
abdomen, which could cause
severe or even fatal internal
injuries in a crash.
Also see “Rear Seat Belt
Comfort Guides” under
Lap-Shoulder Belt 066.
According to accident
statistics, children are safer
when properly restrained in a
rear seating position.
In a crash, children who are
not buckled up can strike
other people who are buckled
up, or can be thrown out of

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
88 Seats and Restraints
Warning (Continued)
outboard seat, always move
the front passenger seat as
far back as it will go.
Child restraints are devices
used to restrain, seat,
or position children in the
vehicle and are sometimes
called child seats or car seats.
There are three basic types
of child restraints:
.Forward-facing child
restraints
.Rear-facing child restraints
.Belt-positioning booster
seats
The proper child restraint for
your child depends on their
size, weight, and age, and also
on whether the child restraint
is compatible with the vehicle
in which it will be used.
For each type of child
restraint, there are many
different models available.
When purchasing a child
restraint, be sure it is
designed to be used in a
motor vehicle and is designed
by a genuine child restraint
manufacturer. If it is, the child
restraint will have a label
saying that it meets federal
motor vehicle safety
standards.
The instruction manual that is
provided with the child
restraint states the weight
and height limitations for that
particular child restraint. In
addition, there are many kinds
of child restraints available for
children with special needs.{Warning
To reduce the risk of neck
and head injury in a crash,
infants and toddlers should
be secured in a rear-facing
child restraint until age two,
or until they reach the
maximum height and weight
limits of their child restraint.
{Warning
A young child's hip bones
are still so small that the
vehicle seat belt may not
remain low on the hip bones,
as it should. Instead, it may
settle up around the child's
abdomen. In a crash, the belt
would apply force on a body
area that is unprotected by
any bony structure. This
alone could cause serious or
fatal injuries. To reduce the
risk of serious or fatal
injuries during a crash, (Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Instruments and Controls 151
HUD Troubleshooting
If you cannot see the HUD
image when the ignition is on,
check that:
.Nothing is covering the
HUD lens.
.The HUD brightness setting
is not too dim or too bright.
.The HUD is adjusted to the
proper height.
.Polarized sunglasses are
not worn.
.The windshield and HUD lens
are clean.
If the HUD image is not
correct, contact your dealer.
The windshield is part of the
HUD system. See Windshield
Replacement 0388.
Vehicle Messages
Messages displayed on the
DIC indicate the status of the
vehicle or some action that
may be needed to correct a
condition. Multiple messages
may appear one after another. The messages that do not
require immediate action can
be acknowledged and cleared
by pressing
V. The messages
that require immediate action
cannot be cleared until that
action is performed.
All messages should be taken
seriously; clearing the
message does not correct the
problem.
If a SERVICE message
appears, see your dealer.
Follow the instructions given
in the messages. The system
displays messages regarding
the following topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Steering
.Ride Control Systems
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb
Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems
.Engine and Transmission
.Tire Pressure
.Battery
Engine Power
Messages
ENGINE POWER IS
REDUCED
This message displays when
the vehicle's propulsion power
is reduced. A reduction in
propulsion power can affect
the vehicle's ability to
accelerate. If this message is
on, but there is no observed
reduction in performance,
proceed to your destination.
Under certain conditions the
performance may be reduced
the next time the vehicle is
driven. The vehicle may be
driven while this message is
on, but maximum acceleration
and speed may be reduced.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
336 Driving and Operating
adjustment, see your dealer.
Do not attempt to adjust the
camera yourself.
Side Blind Zone
Alert (SBZA)
If equipped, the SBZA system
is a lane-changing aid that
assists drivers with avoiding
crashes that occur with
moving vehicles in the side
blind zone, or blind spot areas.
When the vehicle is in a
forward gear, the left or right
side mirror display will light up
if a moving vehicle is detected
in that blind zone. If the turn
signal is activated and a
vehicle is also detected on the
same side, the display will flash
as an extra warning not to
change lanes. Since this
system is part of the Lane
Change Alert (LCA) system,
read the entire LCA section
before using this feature.
Lane Change
Alert (LCA)
If equipped, the LCA system is
a lane-changing aid that
assists drivers with avoiding
lane change crashes that
occur with moving vehicles in
the side blind zone (or spot)
areas or with vehicles rapidly
approaching these areas from
behind. The LCA warning
display will light up in the
corresponding outside side
mirror and will flash if the turn
signal is on.
{Warning
LCA does not alert the
driver to vehicles outside of
the system detection zones,
pedestrians, bicyclists,
or animals. It may not
provide alerts when
changing lanes under all
driving conditions. Failure to
use proper care when
changing lanes may result in(Continued)
Warning (Continued)
injury, death, or vehicle
damage. Before making a
lane change, always check
mirrors, glance over your
shoulder, and use the turn
signals.
LCA Detection Zones
1. SBZA Detection Zone
2. LCA Detection Zone
The LCA sensor covers a zone
of approximately one lane over
from both sides of the vehicle,
or 3.5 m (11 ft). The height of
the zone is approximately
between 0.5 m (1.5 ft) and 2 m
(6 ft) off the ground. The Side

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 357
When using a
weight-distributing hitch,
measure the front fender
height above the front axle
distance (2) before and after
connecting the trailer. Adjust
the spring bars until the front
fender height distance (2) is
approximately halfway
between the first and second
measurements.
Tires
.Do not tow a trailer while
using a compact spare tire
on the vehicle.
.Tires must be properly
inflated to support loads
while towing a trailer. See
Tires0400 for instructions
on proper tire inflation.
Safety Chains
Always attach chains between
the vehicle and the trailer, and
attach the chains to the holes
on the trailer hitch platform.
Instructions about safety chains may be provided by the
hitch manufacturer or by the
trailer manufacturer.
Cross the safety chains under
the tongue of the trailer to
help prevent the tongue from
contacting the road if it
becomes separated from the
hitch. Always leave just
enough slack so the
combination can turn. Never
allow safety chains to drag on
the ground.
Trailer Brakes
Loaded trailers over 450 kg
(1,000 lb) must be equipped
with brake systems and with
brakes for each axle. Trailer
braking equipment conforming
to Canadian Standards
Association (CSA) requirement
CAN3-D313, or its equivalent,
is recommended.
State or local regulations may
require trailers to have their
own braking system if the
loaded weight of the trailerexceeds certain minimums
that can vary from state to
state.
Read and follow the
instructions for the trailer
brakes so they are installed,
adjusted, and maintained
properly.
{Warning
Never attempt to tamper
with the hydraulic brake
system for your trailer
brakes. Do not connect a
trailer's hydraulic brake
system directly to your
vehicle's hydraulic brake
system. If you do, both the
vehicle antilock brakes and
the trailer brakes may not
function, which could result
in a crash.
Trailer Wiring Harness
lf equipped, the trailer wiring
harness, with a 7-pin
connector is mounted on the
trailer hitch.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
364 Vehicle Care
traction control, and stability
control. These accessories or
modifications could even
cause malfunction or damage
not covered by the vehicle
warranty.
Damage to suspension
components caused by
modifying vehicle height
outside of factory settings will
not be covered by the vehicle
warranty.
Damage to vehicle
components resulting from
modifications or the
installation or use of non-GM
certified parts, including
control module or software
modifications, is not covered
under the terms of the vehicle
warranty and may affect
remaining warranty coverage
for affected parts.
GM Accessories are designed
to complement and function
with other systems on the
vehicle. See your dealer to
accessorize the vehicle usinggenuine GM Accessories
installed by a dealer
technician.
Also, see Adding Equipment to
the Airbag-Equipped Vehicle
0
83.
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work
on your vehicle if you do not
have the proper knowledge,
service manual, tools,
or parts. Always follow
owner’s manual procedures
and consult the service
manual for your vehicle
before doing any
service work. If doing some of your own
service work, use the proper
service manual. It tells you
much more about how to
service the vehicle than this
manual can. To order the
proper service manual, see
Publication Ordering
Information
0476.
This vehicle has an airbag
system. Before attempting to
do your own service work, see
Servicing the Airbag-Equipped
Vehicle 082.
If equipped with remote
vehicle start, open the hood
before performing any service
work to prevent remote
starting the vehicle
accidentally. See Remote
Vehicle Start 019.
Keep a record with all parts
receipts and list the mileage
and the date of any service
work performed. See
Maintenance Records 0461.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 383
Caution (Continued)
.Fill the washer fluid tank
only three-quarters full
when it is very cold. This
allows for fluid expansion
if freezing occurs, which
could damage the tank if it
is completely full.
Brakes
Disc brake linings have built-in
wear indicators that make a
high-pitched warning sound
when the brake linings are
worn and new linings are
needed. The sound can come
and go or can be heard all the
time when the vehicle is
moving, except when applying
the brake pedal firmly.
{Warning
The brake wear warning
sound means that soon the
brakes will not work well.
That could lead to a crash.(Continued)
Warning (Continued)
When the brake wear
warning sound is heard,
have the vehicle serviced.
Caution
Continuing to drive with
worn-out brake linings could
result in costly brake repairs.
Some driving conditions or
climates can cause a brake
squeal when the brakes are
first applied, clearing up
following several applications.
This does not mean something
is wrong with the brakes.
Properly torqued wheel nuts
are necessary to help prevent
brake pulsation. When tires
are rotated, inspect brake
linings for wear and evenly
tighten wheel nuts in the
proper sequence to torque
specifications. See Capacities
and Specifications 0463. Brake pads should be replaced
as complete axle sets.
Brake Pedal Travel
See your dealer if the brake
pedal does not return to
normal height, or if there is a
rapid increase in pedal travel.
This could be a sign that brake
service may be required.
Replacing Brake System
Parts
Always replace brake system
parts with new, approved
replacement parts. If this is
not done, the brakes may not
work properly. The braking
performance can change in
many ways if the wrong brake
parts are installed or if parts
are improperly installed.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
402 Vehicle Care
a TPC specification code
molded onto the sidewall.
Original equipment all-season
tires can be identified by the
last two characters of this
TPC code, which will be“MS.”
Consider installing winter tires
on the vehicle if frequent
driving on snow or ice-covered
roads is expected. All-season
tires provide adequate
performance for most winter
driving conditions, but they
may not offer the same level
of traction or performance as
winter tires on snow or
ice-covered roads. See Winter
Tires 0402.
Winter Tires
This vehicle was not originally
equipped with winter tires.
Winter tires are designed for
increased traction on snow
and ice-covered roads.
Consider installing winter tires
on the vehicle if frequent
driving on ice or snow covered
roads is expected. See your
dealer for details regarding winter tire availability and
proper tire selection. Also, see
Buying New Tires
0419.
With winter tires, there may
be decreased dry road
traction, increased road noise,
and shorter tread life. After
changing to winter tires, be
alert for changes in vehicle
handling and braking.
If using winter tires:
.Use tires of the same brand
and tread type on all four
wheel positions.
.Use only radial ply tires of
the same size, load range,
and speed rating as the
original equipment tires.
Winter tires with the same
speed rating as the original
equipment tires may not be
available for H, V, W, Y, and ZR
speed rated tires. If winter
tires with a lower speed rating
are chosen, never exceed the
tire's maximum speed
capability.
Tire Sidewall Labeling
Useful information about a
tire is molded into its
sidewall. The examples
show a typical passenger
vehicle tire and a compact
spare tire sidewall.
Passenger Tire Example
(1) Tire Size:The tire size
is a combination of letters
and numbers used to
define a particular tire's
width, height, aspect ratio,
construction type, and