brake CADILLAC XT6 2023 Owner's Guide

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
258 Driving and Operating
4. Set the parking brake. SeeElectric Parking Brake
0274. Press ENGINE
START/STOP to turn the
vehicle off.
If the vehicle cannot be pulled
over and must be shut off
while driving, press and hold
ENGINE START/STOP for
longer than two seconds,
or press twice in five seconds.
Accessory Mode (Amber
Indicator Light) : This mode
allows you to use some
electrical accessories when
the engine is off.
With the ignition off, pressing
ENGINE START/STOP once
without the brake pedal
applied will place the ignition
system in accessory mode.
The ignition will switch from
accessory mode to OFF after
10 minutes to prevent battery
rundown. ON/RUN/START (Green
Indicator Light) :
This mode is
for driving and starting. With
the ignition off and the brake
pedal applied, pressing
ENGINE START/STOP once
will place the ignition system in
ON/RUN/START. Once engine
cranking begins, release the
button. Engine cranking will
continue until the engine
starts, and the ignition will
then remain ON. See Starting
the Engine 0258.
Service Mode
This mode is available to verify
the proper operation of the
malfunction indicator lamp as
may be required for emissions
inspection purposes and for
service and diagnostics.
With the vehicle off, and the
brake pedal not applied,
pressing and holding ENGINE
START/STOP for more than
five seconds will place the
vehicle in Service Mode. The
instruments and audio
systems will operate as they do in ON/RUN, but the vehicle
will not be able to be driven.
The engine will not start in
Service Mode. Press ENGINE
START/STOP again to turn
the vehicle off.
Starting the Engine
Place the transmission in the
proper gear, P (Park) or
N (Neutral). To restart the
engine when the vehicle is
already moving, use
N (Neutral).
Caution
Do not try to shift to P (Park)
if the vehicle is moving.
If you do, you could damage
the transmission. Shift to
P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could
change the way the engine
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 259
Caution (Continued)
operates. Any resulting
damage would not be
covered by the vehicle
warranty. See Add-On
Electrical Equipment0360.
To start the vehicle: 1. With the Keyless Access system, the remote key
must be in the vehicle.
Press ENGINE START/
STOP with the brake pedal
applied. When the engine
begins cranking, let go of
the button. The idle speed
will go down as the engine
warms up. Do not race the
engine immediately after
starting it.
If the remote key is not in
the vehicle, if there is
interference, or if the
remote key is low, a Driver
Information Center (DIC)
message will display. See
Remote Key Operation 09.
Caution
Cranking the engine for long
periods of time, by pressing
ENGINE START/STOP
immediately after cranking
has ended, can overheat and
damage the cranking motor,
and drain the battery. Wait
at least 15 seconds between
each try, to let the cranking
motor cool down.
2. If the engine does not start after five to 10 seconds,
especially in very cold
weather (below −18 °C or
0 °F), it could be flooded
with too much gasoline.
Try pushing the
accelerator pedal all the
way to the floor and hold it
there, then press ENGINE
START/STOP for up to a
maximum of 15 seconds.
Wait at least 15 seconds
between each try, to allow
the cranking motor to cool
down. When the engine
starts, let go of the button and the accelerator. If the
vehicle starts briefly but
then stops again, do the
same thing. This clears the
extra gasoline from the
engine. Do not race the
engine immediately after
starting it. Operate the
engine and transmission
gently until the oil warms
up and lubricates all
moving parts.
Stop/Start System
This vehicle has a Stop/Start
system to shut off the engine
to help conserve fuel. It has
components designed for the
increased number of starts.
{Warning
The automatic engine Stop/
Start feature causes the
engine to shut off while the
vehicle is still on. Do not exit
the vehicle before shifting to
P (Park). The vehicle may
restart and move
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
260 Driving and Operating
Warning (Continued)
unexpectedly. Always shift
to P (Park), and then turn
the ignition off before
exiting the vehicle.
Auto Engine Stop/Start
When the brakes are applied
and the vehicle is at a
complete stop, the engine may
turn off. When stopped, the
tachometer displays AUTO
STOP. See Tachometer 0130.
When the brake pedal is
released or the accelerator
pedal is pressed, the engine
will restart.
To maintain vehicle
performance, other conditions
may cause the engine to
automatically restart before
the brake pedal is released.
Auto Stops may not occur
and/or auto restarts may
occur because:
.The climate control settings
require the engine to be
running to cool or heat the
vehicle interior.
.The vehicle battery needs to
charge.
.The vehicle battery has
recently been disconnected.
.Minimum vehicle speed has
not been reached since the
last Auto Stop.
.The accelerator pedal is
pressed.
.The engine or transmission
is not at the required
operating temperature.
.The outside temperature is
not in the required operating
range.
.The vehicle transmission is
shifted out of D (Drive) to
any gear other than P (Park).
.Certain driver modes have
been selected. See Driver
Mode Control 0278.
.The vehicle is on a steep hill
or grade.
.The driver door has been
opened or the driver seat
belt has been unbuckled.
.The hood has been opened.
.The Auto Stop has reached
the maximum allowed time.
Auto Stop Disable Switch
The automatic engine Stop/
Start feature can be disabled
and enabled by touching the
hsymbol. Auto Stop is
enabled each time you start
the vehicle.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 263
Ask a dealer in the area where
you will be parking the vehicle
for the best advice on this.
Retained Accessory
Power (RAP)
When the vehicle is turned
from on to off, the following
features (if equipped) will
continue to function for up to
10 minutes, or until the driver
door is opened. These
features will also work when
the vehicle is on or in
accessory mode:
.Infotainment System
.Power Windows (during RAP
this functionality will be lost
when any door is opened)
.Sunroof (during RAP this
functionality will be lost
when any door is opened)
.Auxiliary Power Outlet
.Audio System
.OnStar System
Shifting Into Park
To shift into P (Park):1. Hold the brake pedal down and set the parking brake.
See Electric Parking Brake
0274.
2. Press the button on top of the shift lever to shift into
P (Park). See Automatic
Transmission 0266.
3. The P (Park) indicator on the shift lever will turn red
when the vehicle is in
P (Park).
4. Turn the ignition off. If the vehicle is shifted into
P (Park) on a hill, the
Electric Parking Brake
(EPB) may apply
automatically. You may not
be able to release the EPB
using the EPB switch.
It should automatically
release when the vehicle is
shifted out of P (Park).
Leaving the Vehicle with
the Engine Running
{Warning
It can be dangerous to leave
the vehicle with the engine
running. It could overheat
and catch fire.
It is dangerous to get out of
the vehicle if the vehicle is
not in P (Park) with the
Electric Parking Brake (EPB)
set. The vehicle can roll.
Do not leave the vehicle
when the engine is running.
If you have left the engine
running, the vehicle can
move suddenly. You or
others could be injured. To
be sure the vehicle will not
move, even when you are on
fairly level ground, always
set the EPB and shift the
vehicle to P (Park). If you are
towing a trailer, see Driving
Characteristics and Towing
Tips 0347.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
264 Driving and Operating
If you have to leave the vehicle
with the engine running, be
sure the vehicle is in P (Park)
and the parking brake is firmly
set before you leave it.
If you are towing a trailer and
parking on a hill, see Driving
Characteristics and Towing
Tips0347.
Shifting out of Park
This vehicle is equipped with
an electronic transmission.
The shift lock release button is
designed to prevent
inadvertent shifting out of
P (Park).
To shift out of P (Park):
1. Ensure the engine is running.
2. Apply the brake pedal.
3. Press and hold the shift lock release button on the
shift lever.
4. Move the shift lever to the desired position. For
N (Neutral) hold the lever in the N (Neutral) position
until the N indicator
illuminates red.
5. The P indicator will turn white and the gear
indicator will turn red when
the vehicle is no longer in
P (Park).
After releasing the shift lever,
it will return to the center
position.
If the vehicle cannot shift from
P (Park), a Driver Information
Center (DIC) message may be
displayed. Check that the
ignition is on, the engine is
running, the brake pedal is
applied, and the shift lock
release button is pressed
when you are attempting to
shift out of P (park). If all of
these are met but the vehicle
will not shift out of P (Park),
see your dealer for service.
Parking over Things
That Burn
{Warning
Things that can burn could
touch hot exhaust parts
under the vehicle and ignite.
Do not park over papers,
leaves, dry grass, or other
things that can burn.
Active Fuel
Management
This vehicle's engine may be
equipped with Active Fuel
Management, which allows the
engine to operate on either all
of its cylinders, or in reduced
cylinder operation mode,
depending on the driving
conditions.
When less power is required,
such as cruising at a constant
vehicle speed, the system will
operate in reduced cylinder
operation mode, allowing the
vehicle to achieve better fuel

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 267
P :This position locks the
drive wheels. Use P (Park)
when starting the engine
because the vehicle cannot
move easily.
{Warning
It is dangerous to get out of
the vehicle if the
transmission is not in
P (Park) with the parking
brake set. The vehicle
can roll.
(Continued)
Warning (Continued)
Do not leave the vehicle
when the engine is running.
If the engine has been left
running, the vehicle can
move suddenly. You or
others could be injured. To
be sure the vehicle will not
move, even when on fairly
level ground, always set the
parking brake and place the
transmission into P (Park).
See Shifting Into Park 0263
and Electric Parking Brake
0 274.
This vehicle is equipped with
an electronically controlled
transmission. The shift lock
release button is designed to
prevent inadvertent shifting
out of P (Park) unless the
vehicle is on, the brake pedal is
applied, and the shift lock
release button is pressed.
When the vehicle is stopped,
press ENGINE START/STOP
to turn off the vehicle. The
transmission will shift to
P (Park) automatically unless
the vehicle is in N (Neutral),
See “Car Wash Mode” later in
this section.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
268 Driving and Operating
The vehicle will not shift into
P (Park) if it is moving too fast.
Stop the vehicle and shift into
P (Park).
To shift into and out of
P (Park), see Shifting Into Park
0263 and Shifting out of Park
0 264.
Service Shift Lever Message
If the message SERVICE
SHIFTER SEE OWNER’S
MANUAL appears in the
Driver Information
Center (DIC), the shift lever
needs service. Have the
vehicle serviced as soon as
possible. If the vehicle is
automatically shifting into
P (Park), check to see if the
P (Park) button on top of the
shift lever is stuck. To operate
the vehicle, hold the shift lever
in the desired gear,
R (Reverse) or D (Drive), until
vehicle speed exceeds
15 km/h (10 mph), then release
the shift lever.
R : Use this gear to back up. If the vehicle is shifted from
either R (Reverse) to D (Drive)
or M (Manual Mode),
or M (Manual Mode) or
D (Drive) to R (Reverse) while
the speed is too high, the
vehicle will shift to N (Neutral).
Reduce the vehicle speed and
try the shift again.
To shift into R (Reverse):
1. Bring the vehicle to a complete stop.
2. Press and hold the shift lock release button on the
side of the shift lever.
3. From the center position, move the shift lever
forward through the first
detent to the end of travel.
R is illuminated in red.
4. After releasing the shift lever, it will return to the
center position.
To shift out of R (Reverse): 1. Bring the vehicle to a complete stop.
2. Shift to the desired gear. 3. After releasing the shift
lever, it will return to the
center position.
At low vehicle speeds,
R (Reverse) can be used to
rock the vehicle back and forth
to get out of snow, ice, or sand
without damaging the
transmission. See If the
Vehicle Is Stuck 0251 or
If the Vehicle Is Stuck 0251.
N : In this position, the engine
does not connect with the
wheels. To restart the engine
when the vehicle is already
moving, use N (Neutral) only.
{Warning
Shifting into a drive gear
while the engine is running
at high speed is dangerous.
Unless your foot is firmly on
the brake pedal, the vehicle
could move very rapidly. You
could lose control and hit
people or objects. Do not
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 269
Warning (Continued)
shift into a drive gear while
the engine is running at high
speed.
Caution
Shifting out of P (Park) or
N (Neutral) with the engine
running at high speed may
damage the transmission.
The repairs would not be
covered by the vehicle
warranty. Be sure the
engine is not running at high
speed when shifting the
vehicle.
The vehicle is not designed to
stay in N (Neutral) for more
than five minutes. It may
automatically shift into
P (Park). N (Neutral) is not
intended for towing. If the
vehicle needs to be towed, see
Transporting a Disabled
Vehicle 0437. To shift into N (Neutral):
1. Move the shift lever forward to the first detent
from the center position.
.If the vehicle is in
P (Park), apply the brake
pedal and press the shift
lock release button while
moving the shift lever
forward.
.N will illuminate in red.
2. After releasing the shift lever, it will return to the
center position.
To shift out of N (Neutral): 1. Bring the vehicle to a complete stop.
2. Shift to the desired gear. If shifting from N (Neutral)
to R (Reverse), press the
shift lock release button.
3. After releasing the shift lever, it will return to the
center position.
Car Wash Mode
This vehicle includes a Car
Wash Mode that allows the
vehicle to remain in N (Neutral)
for use in automatic car
washes.
Car Wash Mode (Engine Off –
Driver in Vehicle)
To place the vehicle in
N (Neutral) with the engine off
and the vehicle occupied:
1. Drive to the entrance of the car wash.
2. Apply the brake pedal.
3. Shift to N (Neutral).
4. Turn off the engine and release the brake pedal.
5. The indicator should continue to show N. If it
does not, repeat
Steps 2–4.
6. The vehicle is now ready for the car wash.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
270 Driving and Operating
Car Wash Mode (Engine Off–
Driver out of Vehicle)
To place the vehicle in
N (Neutral) with the engine off
and the vehicle unoccupied:
1. Drive to the entrance of the car wash.
2. Apply the brake pedal.
3. Open the door.
4. Shift to N (Neutral).
5. Turn off the engine and release the brake pedal.
6. The indicator should continue to show N. If it
does not, repeat
Steps 2–5.
7. Exit the vehicle and close the door. The vehicle is
now ready for the
car wash.
8. The vehicle may automatically shift to
P (Park) when the door is
opened. Car Wash Mode (Engine On
–
Driver in Vehicle)
To place the vehicle in
N (Neutral) with the engine on
and the vehicle occupied:
1. Drive to the entrance of the car wash.
2. Apply the brake pedal.
3. Shift to N (Neutral).
4. Release the brake pedal. The vehicle is now ready
for the car wash.
Car Wash Mode (Engine On –
Driver out of Vehicle)
To place the vehicle in
N (Neutral) with the engine on
and the vehicle unoccupied:
1. Drive to the entrance of the car wash.
2. Apply the brake pedal.
3. Open the door.
4. Shift to N (Neutral), then release the brake pedal. 5. The indicator should
continue to show N. If it
does not, repeat
Steps 2–4.
6. Exit the vehicle and close the door. The vehicle is
now ready for the
car wash.
7. The vehicle may automatically shift to
P (Park) when the door is
opened.
Caution
A transmission hot message
may display if the automatic
transmission fluid is too hot.
Driving under this condition
can damage the vehicle.
Stop and idle the engine to
cool the automatic
transmission fluid. This
message clears when the
transmission fluid has cooled
sufficiently.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 271
D :This position is for normal
driving. If more power is
needed for passing, press the
accelerator pedal down.
To shift into D (Drive):
1. Bring the vehicle to a complete stop.
2. From the center position, move the shift lever back.
.If the vehicle is in
P (Park), press the shift
lock release button while
pulling the shift
lever back.
.D will illuminate in red.
.After releasing the shift
lever, it will return to the
center position.
To shift out of D (Drive): 1. Bring the vehicle to a complete stop.
2. Shift to the desired gear.
3. After releasing the shift lever, it will return to the
center position. Downshifting the transmission
in slippery road conditions
could result in skidding. See
“Skidding”
under Loss of
Control 0243.
Caution
Spinning the tires or holding
the vehicle in one place on a
hill using only the
accelerator pedal may
damage the transmission.
The repair will not be
covered by the vehicle
warranty. If the vehicle is
stuck, do not spin the tires.
When stopping on a hill, use
the brakes to hold the
vehicle in place.
Manual Mode
Tap Shift
Caution
Driving with the engine at a
high rpm without upshifting
while using Tap Shift, could (Continued)
Caution (Continued)
damage the vehicle. Always
upshift when necessary
while using Tap Shift.
If equipped, vehicles with Tap
Shift have controls on the
back of the steering wheel to
manually shift the automatic
transmission.