Page 294 of 507

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 293
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.Objects Not Directly in Front
of Your Vehicle
The detection of objects in
front of the vehicle may not be
possible if:
.The vehicle or object ahead
is not within your lane.
.The vehicle ahead is shifted,
not centered, or is shifted to
one side of the lane.
Driving in Narrow Lanes
Vehicles in adjacent traffic
lanes or roadside objects may
be incorrectly detected when
located along the roadway.
Do Not Use ACC on Hills
Do not use ACC when driving
on steep hills as ACC may not
detect a vehicle ahead.
Do Not Use ACC When
Towing a Trailer
ACC should not be used when
towing a trailer.
Disengaging ACC
There are three ways to
disengage ACC:
.Step lightly on the brake
pedal.
.Press*.
.Presso.
Erasing Speed Memory
The cruise control set speed is
erased from memory if
ois
pressed or if the ignition is
turned off.
Weather Conditions
Affecting ACC
System operation may be
limited under snow, heavy rain,
or road spray conditions.
Page 302 of 507

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 301
Pay close attention to the road ahead to avoid these three increasing alerts:First Alert
.If the steering wheel light bar flashes green, the system has detected
that your head and eyes may not be directed toward the road.
.The flashing will stop when the system detects that your head and eyes
appear to be directed toward the road.
Second Alert
.If the steering wheel light bar flashes green for too long, Super Cruise
will alert the driver to take control of steering immediately by flashing
the light bar red. Also, either beeps will sound or the Safety Alert Seat
will vibrate.To view available settings from the infotainment screen,
touch Settings > Vehicle > Collision/Detection Systems.
.Take over steering, then Super Cruise will disengage.
.To re-engage Super Cruise, press]. See "Using Super Cruise"
previously in this section.
Third Alert
.If the steering wheel light bar flashes red for too long, a voice command
will tell you to take control of the vehicle.
.Take control of the steering immediately; ACC and Super Cruise will
disengage.
.A DIC message will indicate that Super Cruise is locked out. Super
Cruise cannot be re-engaged until the next ignition cycle.
.Continued failure to take over steering will cause the vehicle to brake to
a stop and OnStar will be called. The brake lamps and hazard warning
flashers will come on.
.Take control of the vehicle and continue driving.
Page 311 of 507

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
310 Driving and Operating
Super Cruise Message Summary (cont'd)
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.
Super Cruise Unavailable Super Cruise is unavailable for reasons not described in other messages.
Super Cruise Locked Out See Owner’s Manual The driver did not take control of the vehicle when prompted by the Super Cruise system.
The Super Cruise system will be disabled until
the ignition is turned off and back on.
Page 335 of 507

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
334 Driving and Operating
1. Low-Beam Headlamps
2. High-Beam Headlamps
3. Night Vision System
By selecting a view on the
instrument cluster, the Night
Vision image can be displayed.
See Instrument Cluster0127.
The Night Vision system can
operate only if:
.The ignition is on.
.The vehicle is in P (Park) or a
forward gear.
.It is dark enough outside.
.The headlamps are on,
except when parked. Adjust the instrument panel
brightness to make the image
no brighter than necessary.
Turn the image off by
selecting another view on the
instrument cluster.
Warm objects, such as
pedestrians, animals, and
other moving vehicles, should
appear whiter on the Night
Vision display. Cold objects,
such as the sky, signs, and
parked vehicles, should appear
darker. Night Vision only
shows objects that are
warmer or colder than the
surroundings. It does not
detect brake lamps, turn
signals, emergency flashers,
traffic lights, or sign
information.
Use this system as an aid by
occasionally glancing at the
image. Do not stare at the
image or use the image under
well-lit conditions.
{Warning
Do not stare at the image
while driving as this might
cause important objects
ahead not to be seen. You
could crash, and you or
others could be injured.
When a pedestrian or large
animal is detected, an amber
box displays around the
pedestrian or animal on the
Night Vision display and an
amber pedestrian icon,
~,
or animal icon,
!, displays on
the instrument cluster. This
pedestrian icon is also shown
on the Head-Up Display (HUD).
When the system detects the
vehicle is approaching a
pedestrian too quickly, the
amber pedestrian icon and box
turns red, and a red flashing
icon,
~, displays on the HUD
with rapid beeping or pulsing
of the Safety Alert Seat,
if equipped.
Page 381 of 507

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.
Page 395 of 507
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
394 Vehicle Care
Fuses UsageF3 DC DC Transformer 1
F4 –
F5 DC DC Transformer 2
F6 Amplifier 1 F7 Front Blower
F8 Starter 3
F9 –
F10 –
F11 –
F12 Front Wiper
F13 Starter 2
F14 –
F15 Rear Wiper 1
F16 –
F17 –
F18 Automatic Headlamp
Leveling Module
F19 – Fuses Usage
F20 –
F21 –
F22 Electronic Brake Control Module
F23 Parking/Trailer Lamps
F24 Right Trailer Stoplamp/
Turnlamp
F25 Steering Column Lock
F26 –
F27 Left Trailer Stoplamp/
Turnlamp
F28 –
F29 –
F30 Washer Pump F31 –
F32 Headlamp Left
F33 –
F34 Horn Fuses Usage
F35 –
F36 –
F37 Headlamp Right
F38 Not Used/Spare
F39 Transmission Control Module 1
F40 Left Rear Bus Electrical Center/
DC DC Ignition
F41 Instrument Cluster
F42 Heating, Ventilation, and
Air Conditioning/
Central Gateway
Module/Run/
Crank
F43 Head-up Display/ Reflective Light
Auxiliary
Page 396 of 507
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 395
Fuses UsageF44 Electronic Brake Control Module
Electric Brake
Booster/Run/
Crank
F45 –
F46 –
F47 –
F48 Rear Wiper 2
F49 Interior Rearview Mirror/Trailer/
Rear Heated
Seats/Run/Crank
F50 Fuel Tank Zone Module/Run/
Crank
F51 Heated Steering Wheel
F52 Folding Seats Switch
F53 Engine Coolant Pump
F54 – Fuses Usage
F55 Air Conditioning Clutch
F56 Not Used/Spare F57 Engine Control Module/Ignition
F58 Transmission Control Module/
Ignition
F59 Engine Control Module Battery
F60 –
F61 O2 Sensor 1/ Aeroshutter/
Mass Air Flow
Sensor
F62 Engine Control Module–Odd
F63 O2 Sensor 2
F64 Engine Control Module–Even
F65 Engine Control Module
Powertrain 1 Fuses Usage
F66 Engine Control Module
Powertrain 2
F67 Engine Control Module
Powertrain 3
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 –
F75 –
F76 –
F77 –
Relays Usage K1 Starter 1
K2 Run/Crank
K3 Starter 3
Page 400 of 507
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 399
Fuses UsageF1 –
F2 Trailer Battery 1 Fuses Usage
F3 Driver Seat Belt Motor
F4 Rear Blower
F5 Rear Drive Control
F6 Passenger Seat Belt Motor
F7 Right Window
F8 Rear Defogger
F9 Left Window
F10 Folding Seats 1 F11 Trailer Reverse
F12 –
F13 –
F14 –
F15 –
F16 –
F17 –
F18 Trailer Module/ External Object
Calculation
Module 2 Ignition Fuses Usage
F19 Ventilated Seats/ Left Front
Heated Seats/
Run/Crank
F20 –
F21 Trailer Connector
F22 –
F23 Spare
F24 Passenger Window Switch
F25 Spare
F26 Trailer Brake F27 –
F28 Passive Entry/ Passive Start
F29 ADIM –Advanced
Driving
Integration
Module/
Advanced Driver
Assist Map
Module
F30 Canister Vent