fuel CADILLAC XT6 2021 Owner's Guide

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
198 INFOTAINMENT SYSTEM
.The gap setting for the Forward
Collision Alert and Adaptive Cruise
Control, if equipped, cannot be
changed.
.When trying to change a safety
feature that is not configurable in
Teen Driver, the DIC displays a
message indicating that Teen Driver
is active and the action is not
available.
.Super Cruise, if equipped, is not
available.
.Enhanced Low Fuel Warning (if
equipped)–When the vehicle is low
on fuel, the low fuel light on the
instrument cluster flashes and the
DIC low fuel warning cannot be
dismissed.
.Do not tow a trailer.
Report Card
The vehicle owner must secure the
driver’s consent to record certain
vehicle data when the vehicle is driven
with a registered Teen Driver key.
There is one Report Card per vehicle.
Data is only recorded when a
registered Teen Driver key is used to
operate the vehicle. The Report Card data is collected from
the time Teen Driver is activated or
the last time the Report Card was
reset. The following items may be
recorded:
.Distance Driven
–the total distance
driven.
.Maximum Speed –the maximum
vehicle speed detected.
.Overspeed Warnings –the number
of times the speed warning setting
was exceeded.
.Wide Open Throttle –the number
of times the accelerator pedal was
pressed nearly all the way down.
.Forward Collision Alerts –the
number of times the driver was
notified when approaching a vehicle
ahead too quickly and at potential
risk for a crash.
.Forward Automatic Braking, also
called Automatic Emergency
Braking (if equipped) –the number
of times the vehicle detected that a
forward collision was imminent and
applied the brakes.
.Reverse Automatic Braking (if
equipped) –the number of times
the vehicle detected that a rearward
collision was imminent and applied
the brakes.
.Traction Control –the number of
times the Traction Control System
activated to reduce wheel spin or
loss of traction.
.Stability Control –the number of
events which required the use of
electronic stability control.
.Antilock Braking System Active –
The number of Antilock Brake
System activations.
.Tailgating Alerts –the number of
times the driver was alerted for
following a vehicle ahead too
closely.
Report Card Data
Cumulative Data is saved for all trips
until the Report Card is reset or until
the maximum count is exceeded.
If the maximum count is exceeded for
a Report Card line item, that item will
no longer be updated in the Report
Card until it is reset. Each item will

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/10/21
CLIMATE CONTROLS 209
Climate Control Display
1. Driver and Passenger Temperature Display
2. Fan Control
3. Ionizer Status
4. Driver and Passenger Temperature Controls
5. Sync (Synchronized Temperature)
6. Recirculation
7. Driver and Passenger Air Delivery Mode Controls
8. Auto (Automatic Operation)
9. A/C (Air Conditioning)
10. On/Off The fan, air delivery mode, air
conditioning, driver and passenger
temperatures, and Sync settings can
be controlled by touching CLIMATE
on the infotainment Home Page or the
climate button in the climate control
display application tray. A selection
can then be made on the front climate
control page displayed.
Climate Control Status Display
The climate control status display
appears briefly when the climate
control buttons on the center stack
are adjusted. The air delivery mode
can be adjusted on the climate control
status display.Automatic Operation
The system automatically controls the
fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to the
desired temperature:
When AUTO is lit, all four functions
operate automatically. Each function
can also be manually set and the
setting is displayed. Functions not
manually set will continue to be
automatically controlled, even if the
AUTO indicator is not lit.
For automatic operation:
1. Touch or press AUTO on the display or the center stack.
2. Set the temperature. Allow the system time to stabilize. Then
adjust the temperature as needed
for best comfort.
To improve fuel efficiency and to cool
the vehicle faster, recirculation may be
automatically selected in warm
weather. The recirculation light will
not come on. Press
@to select
recirculation; press it again to select
outside air.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
DRIVING AND OPERATING 217
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . . . . . 218
Distracted Driving . . . . . . . . . . . . . . . . 218
Defensive Driving . . . . . . . . . . . . . . . . 219
Impaired Driving . . . . . . . . . . . . . . . . . 219
Control of a Vehicle . . . . . . . . . . . . . . 219
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Off-Road Recovery . . . . . . . . . . . . . . . . 221
Loss of Control . . . . . . . . . . . . . . . . . . . 221
Off-Road Driving . . . . . . . . . . . . . . . . . 222
Driving on Wet Roads . . . . . . . . . . . 225
Hill and Mountain Roads . . . . . . . . 226
Winter Driving . . . . . . . . . . . . . . . . . . . . 226
If the Vehicle Is Stuck . . . . . . . . . . . 228
Vehicle Load Limits . . . . . . . . . . . . . . 228
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 232
Ignition Positions . . . . . . . . . . . . . . . . 232
Starting the Engine . . . . . . . . . . . . . . 233
Stop/Start System . . . . . . . . . . . . . . . . 234
Engine Heater . . . . . . . . . . . . . . . . . . . . 235
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . . . 237 Shifting Into Park . . . . . . . . . . . . . . . . 237
Shifting out of Park . . . . . . . . . . . . . . 238
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . . . . . 238
Active Fuel Management . . . . . . . . 238
Extended Parking . . . . . . . . . . . . . . . . . 239
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 239
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Automatic Transmission
Automatic Transmission . . . . . . . . . 240
Manual Mode . . . . . . . . . . . . . . . . . . . . . 244
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 245
Brakes
Electric Brake Boost . . . . . . . . . . . . . . 246
Antilock Brake System (ABS) . . . . 246
Electric Parking Brake . . . . . . . . . . . . 246
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 248
Hill Start Assist (HSA) . . . . . . . . . . . 248
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 248
Driver Mode Control . . . . . . . . . . . . . 250
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 251
Adaptive Cruise Control (Advanced) . . . . . . . . . . . . . . . . . . . . . . 254
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 263
Assistance Systems for Parkingor Backing . . . . . . . . . . . . . . . . . . . . . . . 264
Rear Pedestrian Alert . . . . . . . . . . . . 271
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . 275
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Night Vision System . . . . . . . . . . . . . 278
Side Blind Zone Alert (SBZA) . . . . 280
Lane Change Alert (LCA) . . . . . . . . 281
Lane Keep Assist (LKA) . . . . . . . . . . 282
Surround Vision Recorder . . . . . . . 284
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 286
Recommended Fuel (2.0L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . 286
Recommended Fuel (3.6L V6 Engine) . . . . . . . . . . . . . . . . . . . . . . 286
Prohibited Fuels . . . . . . . . . . . . . . . . . . 287

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
218 DRIVING AND OPERATING
Fuels in Foreign Countries . . . . . . . 287
Fuel Additives . . . . . . . . . . . . . . . . . . . . 287
Filling the Tank . . . . . . . . . . . . . . . . . . 287
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . . . . . 289
Trailer Towing
General Towing Information . . . . 289
Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . . . . . 290
Trailer Towing . . . . . . . . . . . . . . . . . . . . 293
Towing Equipment . . . . . . . . . . . . . . . 297
Trailer Sway Control (TSC) . . . . . . 300
Conversions and Add-Ons
Add-On Electrical Equipment . . . 301
Driving Information
Driving for Better Fuel
Economy
Driving habits can affect fuel mileage.
Here are some driving tips to get the
best fuel economy possible.
.Set the climate controls to the
desired temperature after the engine
is started, or turn them off when
not required.
.On AWD vehicles, use Tour Mode
when conditions permit.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid abrupt
stops.
.Avoid idling the engine for long
periods of time.
.When road and weather conditions
are appropriate, use cruise control.
.Always follow posted speed limits or
drive more slowly when conditions
require.
.Keep vehicle tires properly inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with the
same TPC Spec number molded into
the tire's sidewall near the size.
.Follow recommended scheduled
maintenance.
Distracted Driving
Distraction comes in many forms and
can take your focus from the task of
driving. Exercise good judgment and
do not let other activities divert your
attention away from the road. Many
local governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep your
eyes on the road, keep your hands on
the steering wheel, and focus your
attention on driving.
.Do not use a phone in demanding
driving situations. Use a hands-free
method to place or receive
necessary phone calls.
.Watch the road. Do not read, take
notes, or look up information on
phones or other electronic devices.
.Designate a front seat passenger to
handle potential distractions.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
222 DRIVING AND OPERATING
Off-Road Driving
All-Wheel Drive vehicles can be used
for off-road driving. Vehicles without
All-Wheel Drive and vehicles not
equipped with All Terrain (AT) or
On-Off Road (OOR) tires must not be
driven off-road except on a level, solid
surface. To contact the tire
manufacturer for more information
about the original equipment tires, see
the Limited Warranty and Owner
Assistance Information manual.
Controlling the vehicle is the key to
successful off-road driving. One of the
best ways to control the vehicle is to
control the speed.
{Warning
When driving off-road, bouncing
and quick changes in direction can
easily throw you out of position.
This could cause you to lose control
and crash. You and your passengers
should always wear seat belts.
Before Driving Off-Road
.Have all necessary maintenance and
service work completed.
.Fuel the vehicle, fill fluid levels, and
check inflation pressure in all tires,
including the spare, if equipped.
.Read all the information about
All-Wheel Drive vehicles in this
manual.
.Make sure all underbody shields,
if equipped, are properly attached.
.Know the local laws that apply to
off-road driving.
To gain more ground clearance if
needed, it may be necessary to remove
the front fascia lower air dam.
However, driving without the air dam
reduces fuel economy.
Caution
Operating the vehicle for extended
periods without the front fascia
lower air dam installed can cause
improper airf low to the engine.
Reattach the front fascia air dam
after off-road driving.
Loading the Vehicle for Off-Road
Driving
{Warning
.Unsecured cargo on the load
floor can be tossed about when
driving over rough terrain. You or
your passengers can be struck by
flying objects. Secure the cargo
properly.
.Keep cargo in the cargo area as
far forward and as low as
possible. The heaviest things
should be on the floor, forward
of the rear axle.
.Heavy loads on the roof raise the
vehicle's center of gravity,
making it more likely to roll over.
You can be seriously or fatally
injured if the vehicle rolls over.
Put heavy loads inside the cargo
area, not on the roof.
For more information about loading
the vehicle, see Vehicle Load Limits
0 228.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
DRIVING AND OPERATING 225
Traction is reduced on hard packed
snow and ice and it is easy to lose
control. Reduce vehicle speed when
driving on hard packed snow and ice.
{Warning
Driving on frozen lakes, ponds,
or rivers can be dangerous. Ice
conditions vary greatly and the
vehicle could fall through the ice;
you and your passengers could
drown. Drive your vehicle on safe
surfaces only.
Driving in Water
{Warning
Driving through rushing water can
be dangerous. Deep water can
sweep your vehicle downstream and
you and your passengers could
drown. If it is only shallow water, it
can still wash away the ground
from under your tires. Traction
could be lost, and the vehicle could
roll over. Do not drive through
rushing water.
Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive slowly through it. At faster
speeds, water splashes on the ignition
system and the vehicle can stall.
Stalling can also occur if you get the
exhaust pipe under water. While the
exhaust pipe is under water, you will
not be able to start the engine. When
going through water, the brakes get
wet, and it might take longer to stop.
See Driving on Wet Roads 0225.
After Off-Road Driving
Remove any brush or debris that has
collected on the underbody or chassis,
or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand, have
the brake linings cleaned and checked.
These substances can cause glazing
and uneven braking. Check the body
structure, steering, suspension, wheels, tires, and exhaust system for
damage and check the fuel lines and
cooling system for any leakage.
Driving on Wet Roads
Rain and wet roads can reduce vehicle
traction and affect your ability to stop
and accelerate. Always drive slower in
these types of driving conditions and
avoid driving through large puddles
and deep-standing or flowing water.
{Warning
Wet brakes can cause crashes. They
might not work as well in a quick
stop and could cause pulling to one
side. You could lose control of the
vehicle.
After driving through a large puddle
of water or a car/vehicle wash,
lightly apply the brake pedal until
the brakes work normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
DRIVING AND OPERATING 227
begins to fall. Avoid driving on wet ice
or in freezing rain until roads can be
treated.
For Slippery Road Driving:
.Accelerate gently. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick.
.Turn on Traction Control. See
Traction Control/Electronic Stability
Control0248.
.Antilock Brake System (ABS)
improves vehicle stability during
hard stops, but the brakes should be
applied sooner than when on dry
pavement. See Antilock Brake System
(ABS) 0246.
.Allow greater following distance and
watch for slippery spots. Icy patches
can occur on otherwise clear roads
in shaded areas. The surface of a
curve or an overpass can remain icy
when the surrounding roads are
clear. Avoid sudden steering
maneuvers and braking while
on ice.
.Turn off cruise control.
.Select All-Wheel Drive (AWD) mode.
See Driver Mode Control 0250 and
All-Wheel Drive 0245.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby. If possible,
use Roadside Assistance. See Roadside
Service 0401. To get help and keep
everyone in the vehicle safe:
.Turn on the hazard warning
flashers.
.Tie a red cloth to an outside mirror.
{Warning
Snow can trap engine exhaust
under the vehicle. This may cause
exhaust gases to get inside. Engine
exhaust contains carbon monoxide
(CO), which cannot be seen or
smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in snow:
.Clear snow from the base of the
vehicle, especially any blocking
the exhaust pipe.
(Continued)
Warning (Continued)
.Open a window about 5 cm (2 in)
on the vehicle side that is away
from the wind, to bring in
fresh air.
.Fully open the air outlets on or
under the instrument panel.
.Adjust the climate control
system to circulate the air inside
the vehicle and set the fan speed
to the highest setting. See
“Climate Control Systems.”
For more information about CO, see
Engine Exhaust 0239.
To save fuel, run the engine for short
periods to warm the vehicle and then
shut the engine off and partially close
the window. Moving about to keep
warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle speed.
This keeps the battery charged to
restart the vehicle and to signal for
help with the headlamps. Do this as
little as possible, to save fuel.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
DRIVING AND OPERATING 231
weight of the driver, passengers,
and cargo should never exceed the
vehicle's capacity weight.
Certification/Tire Label
Label Example
A vehicle-specific Certification/
Tire label is attached to the center
pillar (B-pillar).
The label may show the size of the
vehicle's original tires and the
inflation pressures needed to
obtain the gross weight capacity
of the vehicle. The label shows the
gross weight capacity of the
vehicle. This is called the GrossVehicle Weight Rating (GVWR).
The GVWR includes the weight of
the vehicle, all occupants, fuel,
and cargo.
The Certification/Tire label may
also show the maximum weights
for the front and rear axles, called
the Gross Axle Weight Rating
(GAWR). To find out the actual
loads on the front and rear axles,
weigh the vehicle at a weigh
station. Your dealer can help with
this. Be sure to spread the load
equally on both sides of the
centerline.
CautionOverloading the vehicle may cause
damage. Repairs would not be
covered by the vehicle warranty. Do
not overload the vehicle.
{Warning
Things inside the vehicle can
strike and injure people in a
sudden stop or turn, or in a
crash.
.Put things in the cargo area
of the vehicle. In the cargo
area, put them as far forward
as possible. Try to spread the
weight evenly.
.Never stack heavier things,
like suitcases, inside the
vehicle so that some of them
are above the tops of the
seats.
.Do not leave an unsecured
child restraint in the vehicle.
.Secure loose items in the
vehicle.
.Do not leave a seat folded
down unless needed.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
234 DRIVING AND OPERATING
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 Equipment0301.
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. If the RKE transmitter is not in the
vehicle, if there is interference, or if
the RKE battery is low, a Driver
Information Center (DIC) message
will display. See
Remote Keyless
Entry (RKE) System Operation 07.
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 unexpectedly. Always
shift to P (Park), and then turn the
ignition off before exiting the
vehicle.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
DRIVING AND OPERATING 235
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.
SeeTachometer 0112. 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 charge is low.
.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).
.Tow/Haul Mode or other driver
modes have been selected.
.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.
When the light next to the
his
illuminated, the system is enabled.
Engine Heater
The engine heater, if available, can
help in cold weather conditions at or
below −18 °C (0 °F) for easier starting
and better fuel economy during
engine warm-up. Plug in the engine
heater at least four hours before