service CADILLAC XT6 2022 Workshop Manual

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
232 DRIVING AND OPERATING
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.
ACC/ACCESSORY (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 ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY 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 0232. 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 operates. Any
resulting damage would not be
covered by the vehicle warranty. See
Add-On Electrical Equipment
0316.
To start the vehicle: 1. With the Keyless Access system, the RKE transmitter 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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
DRIVING AND OPERATING 237
3. Press and hold the shift lockrelease 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 economy.
When greater power demands are
required, such as accelerating from a
stop, passing, or merging onto a
freeway, the system will maintain
full-cylinder operation. If the vehicle has an Active Fuel
Management indicator, see Driver
Information Center (DIC) for more
information on using this display.
Extended Parking
It is best not to park with the vehicle
running. If the vehicle is left running,
be sure it will not move and there is
adequate ventilation.
See
Shifting Into Park 0236 and
Engine Exhaust 0238.
If the vehicle is left parked and
running with the RKE transmitter
outside the vehicle, it will continue to
run for up to 15 minutes.
If the vehicle is left parked and
running with the RKE transmitter
inside the vehicle, it will continue to
run for up to 30 minutes.
The vehicle could turn off sooner if it
is parked on a hill, due to lack of
available fuel.
The timer will reset if the vehicle is
taken out of P (Park) while it is
running.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
240 DRIVING AND OPERATING
To shift into and out of P (Park), see
Shifting Into Park0236 and
Shifting out of Park 0236.
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 0226.
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 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

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
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DRIVING AND OPERATING 245
ABS does not change the time needed
to get a foot on the brake pedal and
does not always decrease stopping
distance. If you get too close to the
vehicle ahead, there will not be
enough time to apply the brakes if
that vehicle suddenly slows or stops.
Always leave enough room ahead to
stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold the
brake pedal down firmly. Hearing or
feeling ABS operate is normal.
Braking in Emergencies
ABS allows steering and braking at the
same time. In many emergencies,
steering can help even more than
braking.
Electric Parking Brake
The Electric Parking Brake (EPB) can
always be applied, even if the vehicle
is off. In case of insufficient electrical
power, the EPB cannot be applied or
released. To prevent draining the
battery, avoid unnecessary repeated
cycles of the EPB.
The system has a red parking brake
status light and an amber service
parking brake warning light. See
Electric Parking Brake Light0118 and
Service Electric Parking Brake Light
0 118. There are also parking
brake-related Driver Information
Center (DIC) messages. Before leaving the vehicle, check the
red parking brake status light to
ensure that the parking brake is
applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a complete stop.
2. Press the EPB switch momentarily.
The red parking brake status light will
flash and then stay on once the EPB is
fully applied. If the red parking brake
status light flashes continuously, then
the EPB is only partially applied or
there is a problem with the EPB.
A DIC message will display. Release
the EPB and try to apply it again.
If the light does not come on, or keeps
flashing, have the vehicle serviced. Do
not drive the vehicle if the red parking
brake status light is flashing. See your
dealer.
If the amber service parking brake
warning light is on, press the EPB
switch. Continue to hold the switch
until the red parking brake status light

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
246 DRIVING AND OPERATING
remains on. If the amber service
parking brake warning light is on, see
your dealer.
If the EPB is applied while the vehicle
is moving, the vehicle will decelerate
as long as the switch is pressed. If the
switch is pressed until the vehicle
comes to a stop, the EPB will remain
applied.
The vehicle may automatically apply
the EPB in some situations when the
vehicle is not moving. This is normal,
and is done to periodically check the
correct operation of the EPB system,
or at the request of other safety
functions that utilize the EPB.
If the EPB fails to apply, block the rear
wheels to prevent vehicle movement.
EPB Release
To release the EPB:1. Turn the ignition on or to ACC/ ACCESSORY.
2. Apply and hold the brake pedal.
3. Press the EPB switch momentarily.
The EPB is released when the red
parking brake status light is off. If the amber service parking brake
warning light is on, release the EPB by
pressing and holding the EPB switch.
Continue to hold the switch until the
red parking brake status light is off.
If either light stays on after release is
attempted, see your dealer.
Caution
Driving with the parking brake on
can overheat the brake system and
cause premature wear or damage to
brake system parts. Make sure that
the parking brake is fully released
and the brake warning light is off
before driving.
If you are towing a trailer and parking
on a hill, see Driving Characteristics
and Towing Tips 0305.
Automatic EPB Release
The EPB will automatically release if
the vehicle is running, placed into
gear, and an attempt is made to drive
away. Avoid rapid acceleration when
the EPB is applied, to preserve parking
brake lining life.
Brake Assist
Brake Assist detects rapid brake pedal
applications due to emergency braking
situations and provides additional
braking to activate the Antilock Brake
System (ABS) if the brake pedal is not
pushed hard enough to activate ABS
normally. Minor noise, brake pedal
pulsation, and/or pedal movement
during this time may occur. Continue
to apply the brake pedal as the driving
situation dictates. Brake Assist
disengages when the brake pedal is
released.
Hill Start Assist (HSA)
{Warning
Do not rely on the HSA feature.
HSA does not replace the need to
pay attention and drive safely. You
may not hear or feel alerts or
warnings provided by this system.
Failure to use proper care when
driving may result in injury, death,
or vehicle damage. See Defensive
Driving 0217.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
260 DRIVING AND OPERATING
{Warning
On curves, ACC may respond to a
vehicle in another lane, or may not
have time to react to a vehicle in
your lane. You could crash into a
vehicle ahead of you, or lose control
of your vehicle. Give extra attention
in curves and be ready to use the
brakes if necessary. Select an
appropriate speed while driving in
curves.
ACC may operate differently in a
sharp curve. It may reduce the vehicle
speed if the curve is too sharp.
If equipped, the curve speed control
indicator
bmay illuminate green
when ACC is actively controlling the
vehicle speed and detects a sharp
curve on the road ahead.
ACC automatically slows the vehicle
down while navigating the curve and
may increase speed out of the curve,
but will not exceed the set speed.
When following a vehicle and entering
a curve, ACC may not detect the
vehicle ahead and accelerate to the set
speed. When this happens, the vehicle
ahead indicator will not appear.
ACC may detect a vehicle that is not
in your lane and apply the brakes. ACC may occasionally provide an alert
and/or braking that is considered
unnecessary. It could respond to
vehicles in different lanes, signs,
guardrails, and other stationary
objects when entering or exiting a
curve. This is normal operation. The
vehicle does not need service.
Other Vehicle Lane Changes
ACC will not detect a vehicle ahead
until it is completely in the lane. The
brakes may need to be manually
applied.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
262 DRIVING AND OPERATING
For cleaning instructions, see
“Washing the Vehicle”under Exterior
Care 0384.
Super Cruise
If equipped, Super Cruise can steer to
maintain lane position under certain
conditions on compatible highways
that are separated from opposing
traffic.
{Warning
Super Cruise can only assist to
maintain lane position when driving
on compatible highways. You must
supervise the driving task and
monitor the freeway conditions.
You may need to respond to traffic
events by steering, braking,
or accelerating. See Defensive
Driving 0217.
Super Cruise is:
.Not a self-driving system.
.Not a crash avoidance or warning
system.
.Not a substitute for proper
supervision of the driving task. Super Cruise uses the following to
detect the current lane position and
lane markings ahead on compatible
highways under certain conditions:
.Cameras
.Global Positioning System (GPS)
sensing
.A high-precision map
.GPS-enhancement data downloaded
through OnStar
Super Cruise works with Adaptive
Cruise Control (ACC), which controls
acceleration and braking while Super
Cruise is enabled and operating.
Review and understand both this
section and the ACC section before
using Super Cruise. See Adaptive
Cruise Control (Advanced) 0252.
An active OnStar or connected service
plan that includes Emergency Services
is required to use Super Cruise.
{Warning
Super Cruise does not perform all
aspects of driving, nor does it do
everything a driver can do. Super (Continued)
Warning (Continued)
Cruise only steers to maintain lane
position. Super Cruise can only be
used with Adaptive Cruise Control.
Super Cruise does:
.Not prevent crashes or warn of
possible crashes.
.Not steer to avoid stopped or
slow-moving vehicles,
construction barriers or cones,
motorcycles, children,
pedestrians, animals, or other
objects on the freeway.
.Not steer in response to vehicles
or objects next to your vehicle,
including vehicles attempting to
enter your lane.
.Not respond to traffic lights, stop
signs, or other traffic control
devices.
.Not change lanes.
.Not make turns.
.Not steer to merge onto or to
exit freeways.(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
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264 DRIVING AND OPERATING
Warning (Continued)
.Not during heavy or emergency
braking.
.Not on surface streets.
.Not on a road shoulder, service
drive, or under an elevated
freeway.
.Not in tunnels.
.Not when towing a trailer.
.Not in a freeway exit lane.
When Super Cruise is Available
Super Cruise Indicator
Super Cruise is designed to operate
only when:
.ACC is on. See Adaptive Cruise
Control (Advanced) 0252.
.Automatic Emergency Braking is on.
See Automatic Emergency Braking
(AEB) 0290.
.Teen Driver is not active.
.The GPS detects the vehicle is on a
compatible highway.
.Both the camera and the radar
sensors are functioning and not
covered, obstructed, or damaged.
.The Driver Attention System (DAS)
detects the driver's head and eyes
are directed toward the road.
.The lane markings are clearly visible
and able to be detected by the
system.
Poor Conditions
Poor Conditions
Using Super Cruise
{Warning
To prevent serious injury or death:
.Always check that Super Cruise
is available
^before
pressing
].
.Only remove your hands from
the steering wheel if the steering
wheel light bar,
^, and\are
green. Super Cruise may not
begin steering immediately, even
when Super Cruise is available
and
]has been pressed.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
DRIVING AND OPERATING 269
Stationary or Very Slow-Moving
Objects; Cross-Traffic
{Warning
Super Cruise is not a crash
avoidance system and will not steer
or brake to avoid a crash. Super
Cruise does not steer to prevent a
crash with stopped or slow-moving
vehicles. You must supervise the
driving task and may need to steer
and brake to prevent a crash,
especially in stop-and-go traffic or
when a vehicle suddenly enters
your lane. Always pay attention
when using Super Cruise. Failure to
do so could result in a crash
involving serious injury or death.
Curves in the Road
{Warning
The vehicle could drift out of your
lane of travel. To prevent crashes,
always be ready to manually steer. (Continued)
Warning (Continued)
Super Cruise may not detect your
lane on curves in the road. Super
Cruise may not detect the markings
that show your lane. You may not
have time to react to a vehicle in
the lane next to your vehicle while
on curves in the road.
Super Cruise may operate differently
in sharp curves. It may drift out of
your lane of travel if the curve is too
sharp.
When entering a curve, Super Cruise
may not detect the lane markings and
may not adjust the steering enough to stay in your lane of travel. When this
happens, you will need to steer the
vehicle.
Super Cruise may detect other lane
markings that are not in your lane
and may or may not steer
appropriately to maintain your lane.
Super Cruise may occasionally provide
an alert and/or steering that is
considered unnecessary. It could
respond to lane markings in different
lanes, signs, guardrails, and other
stationary objects when entering or
exiting a curve. This is normal
operation. The vehicle does not need
service.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
274 DRIVING AND OPERATING
Super Cruise Message Summary (cont'd)
Unavailable Driving Too FastThe vehicle is traveling faster than 137 km/h (85 mph).
The maximum Super Cruise speed in curves will vary based
on how sharp the curve is. The vehicle will automatically
decrease speed if needed.
Unavailable Driving in Exit Lane The Super Cruise system has detected that the vehicle is in
an exit lane.
Unavailable Press OnStar Button
.The owner’s required Connected Services subscription
may have ended.
.There may be poor GPS reception (e.g., in isolated
areas).
.The GPS reception may be blocked by objects such as
tall buildings or large structures.
.Press the blue OnStar button in your vehicle to speak
with an OnStar representative, who can help determine
the issue and what actions to take.
Unavailable You Have Taken Vehicle Control
.The brake pedal is being pressed.
.The Adaptive Cruise Control has been canceled or
turned off.
Unavailable Sensor Blocked Clear snow, ice, dirt, or other contaminants from the front
and rear areas of the vehicle.
Unavailable Sharp Curve Some curves are too sharp to be navigated by the Super
Cruise system. Super Cruise will be available after the curve
is traveled.