2018 CADILLAC CT6 light

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Keys, Doors, and Windows . . . . . . . . . 34
Seats and Restraints . . . . . . . . . . . . . . . 64
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Instruments and Controls . . . . . . . . 118
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Infotainment System . . . . . . . . . . . . . 190
Climate Controls . . . . . . . . . . . . . . . . . . 191
Driving and Operating . . . . . . . . . . . . 205
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 296
Service and Maintenance . . . . . . . . . 388
Technical Data . . . . . . . . . . . . . . . . . . . . 403
Customer Information . . . . . . . . . . . . 408
Reporting Safety Defects . . . . . . . . . 418
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Index . . . . . . . . . . . . . . . . . . . . . . . . 432

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
INTRODUCTION 3
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do Not,”
“Do not do this,” or“Do not let this
happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with the text describing the operation or
information relating to a specific
component, control, message, gauge,
or indicator.
M:
Shown when the owner’s manual
has additional instructions or
information.
*: Shown when the service manual
has additional instructions or
information.
0: Shown when there is more
information on another page —
“see page.”
Vehicle Symbol Chart
Here are some additional symbols that
may be found on the vehicle and what
they mean. See the features in this
manual for information.
9: Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
$:Brake System Warning Light
":Charging System (12-Volt
Battery)
I: Cruise Control
`:Do Not Puncture
^:Do Not Service
B:Engine Coolant Temperature
O:Exterior Lamps
g: First Responder
_:Flame/Fire Prohibited
.:Fuel Gauge
+: Fuses
3:Headlamp High/Low-Beam
Changer
_: High Voltage
j: LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
O:Power
/:Remote Vehicle Start
>:Seat Belt Reminders
h:Start/Stop
7: Tire Pressure Monitor
d:Traction Control/StabiliTrak
a:Under Pressure
M: Windshield Washer Fluid

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
IN BRIEF 5
In Brief
Instrument Panel
Instrument Panel Overview . . . . . . . . . 6
Initial Drive Information
Initial Drive Information . . . . . . . . . . . 8
Stop/Start System(Gasoline Only) . . . . . . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . . . . . 9
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Seat Adjustment . . . . . . . . . . . . . . . . . . . 11
Memory Features . . . . . . . . . . . . . . . . . . 13
Second Row Seats . . . . . . . . . . . . . . . . . 13
Heated and Ventilated Seats . . . . . . 14
Head Restraint Adjustment . . . . . . . 15
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Passenger Sensing System . . . . . . . . 15
Mirror Adjustment . . . . . . . . . . . . . . . . 16
Steering Wheel Adjustment . . . . . . . 16
Interior Lighting . . . . . . . . . . . . . . . . . . . 17
Exterior Lighting . . . . . . . . . . . . . . . . . . . 17
Windshield Wiper/Washer . . . . . . . . 18
Climate Controls . . . . . . . . . . . . . . . . . . . 19
Transmission . . . . . . . . . . . . . . . . . . . . . . . 20
Vehicle Features
Infotainment System . . . . . . . . . . . . . . 21
Steering Wheel Controls . . . . . . . . . . 21
Cruise Control . . . . . . . . . . . . . . . . . . . . . 21
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . 22
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Night Vision System . . . . . . . . . . . . . . . 22
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . . . . . 22
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Lane Keep Assist (LKA) . . . . . . . . . . . 23
Lane Change Alert (LCA) . . . . . . . . . . 23
Surround Vision . . . . . . . . . . . . . . . . . . . 23
Rear Vision Camera (RVC) . . . . . . . . 23
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Parking Assist . . . . . . . . . . . . . . . . . . . . . . 24
Automatic Parking Assist (APA) . . . . . . . . . . . . . . . . . . . . . . 24
Reverse Automatic Braking (RAB) . . . . . . . . . . . . . . . . . . . . 24
Surround Vision Recorder . . . . . . . . . 24
Power Outlets . . . . . . . . . . . . . . . . . . . . . . 24
Universal Remote System . . . . . . . . . 25
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PLUG-IN Features
High Voltage Safety Information . . . . . . . . . . . . . . . . . . . . . . 26
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Regenerative Braking . . . . . . . . . . . . . . 29
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . 30
Tire Pressure Monitor . . . . . . . . . . . . . 30
Fuel (2.0L L4 Turbo Engine) . . . . . . 30
Fuel (3.0L Twin Turbo V6 Engine) . . . . . . . . . . . . . . . . . . . . . . . . 31
Fuel (3.6L V6 Engine) . . . . . . . . . . . . . 31
E85 or FlexFuel . . . . . . . . . . . . . . . . . . . . 31
Engine Oil Life System . . . . . . . . . . . . 31
Driving for Better Fuel Economy (Gasoline Only) . . . . . . . . . . . . . . . . . . . 32
Driving for Better Energy Efficiency (PLUG-IN Only) . . . . . . 32
Roadside Service . . . . . . . . . . . . . . . . . . . 33

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
IN BRIEF 7
1.Air Vents 0203.
2. Exterior Lamp Controls 0183.
Turn Signal Lever. See Turn and
Lane-Change Signals 0186.
3. Tap Shift Paddles (If Equipped). See Manual Mode (Gasoline Only)
0 233.
Regen On Demand (If Equipped).
See Regenerative Braking
(PLUG-IN Only) 0237.
4. Instrument Cluster (Base Level)
0127 orInstrument Cluster
(Uplevel) 0130.
Driver Information Center (DIC)
Display. See Driver Information
Center (DIC) 0162.
5. Windshield Wiper/Washer 0120.
6. ENGINE START/STOP Button. See Ignition Positions 0217.
7. Parking Assist Button. See Assistance Systems for Parking or
Backing 0254.
Automatic Parking Assist (APA)
Button (If Equipped). See
Assistance Systems for Parking or
Backing 0254. Automatic Engine Stop/Start
Disable Switch (If Equipped).
See
Starting the Engine (PLUG-IN
Only) 0218 orStarting the Engine
(Gasoline Only) 0221.
8. Light Sensor. See Automatic
Headlamp System 0185.
9. Hazard Warning Flashers 0186.
Glove Box Button. See Glove Box
0 115.
10. Infotainment 0190.
11. Heated and Ventilated Front Seats
072 (If Equipped).
12. Infotainment Touch Pad. See the infotainment manual.
13. Automatic Climate Control System
(Quad Zone - Gasoline Only) 0197
or Automatic Climate Control
System (Dual Zone - Gasoline and
PLUG-IN) 0191.
14. Automatic Vehicle Hold (AVH)
0237 (If Equipped).
MODE Button. See Driver Mode
Control (Gasoline Only) 0241.
Traction Control/Electronic
Stability Control 0239. 15. Shift Lever. See
Automatic
Transmission 0231.
16. Driver Information Center (DIC) Controls. See Driver Information
Center (DIC) 0162.
17. Steering Wheel Controls. See the infotainment manual.
18. Horn 0120.
19. Steering Wheel Adjustment 0119
(Out of View).
20. Forward Collision Alert (FCA)
System 0260 (If Equipped).
Lane Keep Assist (LKA) 0271 (If
Equipped).
Heated Steering Wheel 0119 (If
Equipped).
21. Cruise Control 0242.
Adaptive Cruise Control 0245 (If
Equipped).
Phone Button. See “Steering
Wheel Controls ”in the
infotainment manual.
22. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0143.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
14 IN BRIEF
Easy Exit
If equipped, pressSto tilt the front of
the seat fully downward and to move
the entire seat fully rearward. The seat
will also move to this position when
the rear door is opened.
Heated and Ventilated
Seats
If equipped, the buttons are near the
climate controls on the center stack.
To operate, the ignition must be on.
Press
Jorzto heat the driver or
passenger seat cushion and seatback.
Press
Ior+to heat the driver or
passenger seatback only.
Press
Cor{to ventilate the driver
or passenger seat.
Press the button once for the highest
setting. With each press of the button,
the seat will change to the next lower setting, and then to the off setting.
The indicator lights above the buttons
indicate three for the highest setting
and one for the lowest. If the front
heated seats are on high, the level
may automatically be lowered after
approximately 30 minutes.
See
Heated and Ventilated Front Seats
0 72.
Heated and Ventilated Rear
Seats
If equipped, the buttons are on the
rear passenger doors.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
IN BRIEF 15
With the ignition on, pressMorLto
heat the left or right outboard seat
cushion.
With the ignition on, press
Cor{to
ventilate the left or right
outboard seat.
See Heated and Ventilated Rear Seats
0 77.
Head Restraint Adjustment
Do not drive until the head restraints
for all occupants are installed and
adjusted properly.
To achieve a comfortable seating
position, change the seatback recline
angle as little as necessary while
keeping the seat and the head
restraint height in the proper position.
See Head Restraints 065 and Power
Seat Adjustment 067.
Seat Belts
Refer to the following sections for
important information on how to use
seat belts properly:
.
Seat Belts 078.
. How to Wear Seat Belts Properly
079.
. Lap-Shoulder Belt 080.
. Lower Anchors and Tethers for
Children (LATCH System) 0103.
Passenger Sensing System
United States
Canada
The passenger sensing system turns
off the front outboard passenger
frontal airbag and knee airbag under
certain conditions. No other airbag is
affected by the passenger sensing
system. See Passenger Sensing System
0 91.
The passenger airbag status indicator
will light on the overhead console
when the vehicle is started. See
Passenger Airbag Status Indicator
0 141.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
IN BRIEF 17
Interior Lighting
Dome Lamp
The dome lamp is in the overhead
console.
To change the dome lamp settings,
press:
(OFF :Turns the lamp off, even
when a door is open.
+ON/OFF : Turns the lamp on
or off. Reading Lamps
There are front and rear reading
lamps on the overhead console and
over the rear passenger doors. These
lamps come on automatically when
any door is opened.
To manually turn the reading lamps
on or off:
Pressmornnext to each overhead
console reading lamp.
Press the lamp lenses over the rear
passenger doors.
For more information on interior
lighting, see Instrument Panel
Illumination Control 0187.
Exterior Lighting
The exterior lamp control is on the
turn signal lever.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
18 IN BRIEF
Turn the control to the following
positions:
O:Turns off the exterior lamps. The
knob returns to the AUTO position
after it is released. Turn to
Oagain to
reactivate the AUTO mode.
AUTO : Automatically turns the
exterior lamps on and off, depending
on outside lighting.
;: Turns on the parking lamps
including all lamps, except the
headlamps.
5: Turns on the headlamps together
with the parking lamps and
instrument panel lights.
See:
. Exterior Lamp Controls 0183.
. Turn and Lane-Change Signals
0186.
Windshield Wiper/Washer
With the ignition on or in ACC/
ACCESSORY, move the lever up or
down to select the wiper speed.
HI : Use for fast wipes.
LO : Use for slow wipes.
AUTO : Use this setting for
intermittent wipes when Rainsense is
disabled, or for Rainsense wipes when
it is enabled. For intermittent wipes,
move the lever up to AUTO, then turn
the band on the wiper lever up for
more frequent wipes or down for less
frequent wipes.
If Rainsense is enabled in vehicle
personalization, move the lever up to
AUTO, then turn the band on the
wiper lever to adjust the sensitivity to
moisture.
. Turn the band up for more
sensitivity to moisture.
. Turn the band down for less
sensitivity to moisture.
. Move the windshield wiper lever
out of the AUTO position to
deactivate Rainsense.