2018 CADILLAC CT6 sunshade

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
IN BRIEF 33
Climate Setting
Using the heat and air conditioning
systems decreases the energy available
for electric driving.
Optimal energy efficiency is achieved
with the heat, air conditioning, and
fan turned off.
Less energy is used at low fan speeds.
Use the heated seat feature and the
heated steering wheel instead of
climate settings. Heating the seat and
steering wheel uses less energy than
heating the vehicle interior.
Use remote start to heat or cool the
interior when the vehicle is plugged in
to maximize the electric range by
utilizing electricity from the electrical
outlet.
In hot weather, avoid parking in direct
sunlight or use sunshades inside the
vehicle.
Turn off the front and rear window
defog/defrost when they are no longer
needed.
Avoid driving with the windows open
at highway speeds.
Vehicle Charging/Maintenance
Charging
Keep the vehicle plugged in, even
when fully charged, to keep the
battery temperature ready for the next
drive. This is important when outside
temperatures are extremely hot
or cold.
Maintenance
Always keep the tires properly inflated
and the vehicle properly aligned.
The weight of excess cargo in the
vehicle affects efficiency and range.
Avoid carrying more than is needed.
If fuel is not regularly used, consider
keeping the fuel tank only one-third
full. Excess fuel weight impacts
efficiency and range.
For fuel recommendations, seeFuel
0 286.
Avoid unnecessary use of electrical
accessories. Power used for functions
other than propelling the vehicle will
reduce EV range. Using a rooftop carrier will reduce
efficiency due to additional weight
and drag.
Roadside Service
U.S.: 1-800-224-1400
Canada: 1-800-882-1112
TTY Users (U.S. Only): 1-888-889-2438
New Cadillac owners are automatically
enrolled in the Roadside Service
Program.
See
Roadside Service 0411.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
34 KEYS, DOORS, AND WINDOWS
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . 35
Remote Vehicle Start . . . . . . . . . . . . . . 42
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 43
Power Door Locks . . . . . . . . . . . . . . . . . 45
Delayed Locking . . . . . . . . . . . . . . . . . . . 45
Automatic Door Locks . . . . . . . . . . . . 45
Lockout Protection . . . . . . . . . . . . . . . . 46
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 46
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 51
Vehicle Alarm System . . . . . . . . . . . . . 51
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 53
Immobilizer Operation . . . . . . . . . . . . 53
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 54
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 55 Folding Mirrors . . . . . . . . . . . . . . . . . . . . 55
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 55
Automatic Dimming Mirror . . . . . . . 55
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 56
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 56
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Rear Camera Mirror . . . . . . . . . . . . . . . 56
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Power Windows . . . . . . . . . . . . . . . . . . . . 58
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Rear Window Sunshade . . . . . . . . . . . 60
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
Remote Keyless Entry (RKE)
transmitter is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the RKE transmitter
in the vehicle, and children or
others could be caught in the path
of a closing window. Do not leave
children in a vehicle with an RKE
transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
KEYS, DOORS, AND WINDOWS 53
The power sounder provides an
audible alarm, which is distinct from
the vehicle’s horn. It has its own
power source, and can sound an alarm
if the vehicle’s battery is
compromised.
The inclination sensor can set off the
alarm if it senses movement of the
vehicle, such as a change in vehicle
orientation.
The intrusion sensor monitors the
vehicle interior, and can activate the
alarm if it senses unauthorized entry
into the vehicle’s interior. Do not
allow passengers or pets to remain in
the vehicle when the intrusion sensor
is activated.
Before arming the theft-deterrent
system and activating the intrusion
sensor:
.Make sure all doors and windows
are completely closed.
. Secure any loose items such as
sunshades.
. Make sure there are no
obstructions blocking the sensors
in the front overhead console.Inclination and Intrusion
Sensors Disable Switch
It is recommended that the intrusion
and inclination sensors be deactivated
if pets are left in the vehicle or if the
vehicle is being transported.
With the vehicle turned off, presso
in the front overhead console. The
indicator light will come on
momentarily, indicating that these
sensors have been disabled for the
next alarm system arming cycle.
Immobilizer
See Radio Frequency Statement 0417.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the vehicle is started
or the ignition is in ACC/ACCESSORY
and a valid transmitter is present in
the vehicle.
The security light, in the instrument
cluster, comes on if there is a problem
with arming or disarming the
theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched RKE

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
60 KEYS, DOORS, AND WINDOWS
Warning (Continued)
override, make sure that all people
and obstructions are clear of the
window path.
When the engine is on, override the
automatic reversal system by pulling
and holding the window switch if
conditions prevent it from closing.
Programming the Power
Windows
Programming may be necessary if the
vehicle battery has been disconnected
or discharged. If the window is unable
to express-up, program each
express-close window: 1. Close all doors.
2. Turn the ignition on or to ACC/ ACCESSORY.
3. Partially open the window to be programmed. Then close it and
continue to pull the switch
briefly after the window has fully
closed. 4. Open the window and continue
to press the switch briefly after
the window has fully opened.
Remote Window Operation
If equipped, this feature allows all the
windows to be opened remotely.
If enabled in vehicle personalization,
press and hold
Kon the RKE
transmitter. See Vehicle Personalization
0 170.
Sun Visors
Pull the sun visor down to block glare.
Detach the sun visor from the center
mount to pivot to the side window,
or to extend along the rod.
Rear Window Sunshade
If equipped, press and release the
switch. The rear window sunshade
will fully extend. To close the
sunshade, press and release the switch
again. The sunshade will fully close.
When shifting the vehicle into
R (Reverse), the rear window
sunshade will automatically retract if

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
KEYS, DOORS, AND WINDOWS 61
it is extended. It may re-extend after a
short delay when shifting into D
(Drive).
There is also a control for the rear
window sunshade on the rear door
panel.Rear Passenger Door Sunshades
If equipped, use the handle to pull the
sunshade up and attach to the holder
at the top of the window.
To close the sunshade, use the handle
to unhook and hold it while it
retracts down.
Roof
Sunroof
If equipped with a sunroof, the
ignition must be on or in ACC/
ACCESSORY, or Retained Accessory
Power (RAP) must be active, to
operate the sunroof.
See
Ignition Positions 0217 and
Retained Accessory Power (RAP) 0224.
1. SLIDE Switch
2. TILT Switch

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
62 KEYS, DOORS, AND WINDOWS
Slide Switch
Express-Open/Express-Close :Press
the rear or front of
D(1) to the
second detent and release to
express-open or express-close the
sunroof.
Open/Close (Manual Mode) : Press
the rear of
D(1) to the first detent
and hold to open the sunroof. Press
the front of
D(1) to the first detent
and hold to close the sunroof.
Tilt Switch
Vent Feature : Press and hold the
front of
E(2) to vent the sunroof.
Press and hold the rear of
E(2) to
close the sunroof vent.
Power Sunshades
If equipped, pressFto open or
close the front sunroof sunshade.
If equipped, pressGto open or
close the rear sunroof sunshade.
The rear door panels have controls for
the rear sunroof sunshade. Press
Q
to open or close.
Automatic Reversal System
The sunroof has an automatic reversal
system that is only active when the
sunroof is operated in
express-close mode.
If an object is in the path while
express closing, the reversal system
will detect an object, stop, and open
the sunroof again.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/15/17
VEHICLE CARE 339
FusesUsage
F28 Amplifier
F29 Sunroof
F30 Body control module 2
F31 Body control module 6
F32 Exterior heated mirrors
F33 Right window
F34 Power trunk module
F35 On-board charging module
F36 Alarm siren module
F37 DC AC inverter
F38 Rear blower
F39 Fuel pump power
F40 –
F41 Rear seat power outlet
F42 Left rear memory seat
F43 – Fuses
Usage
F44 Rear closure
F45 Auxiliary audio/ Video/Radio
F46 External object calculating/Side blind
zone alert/Radar
short range sensor
F47 –
F48 Right front seat
F49 Memory bolster module
F50 Body control module 1
F51 Transmission control module
F52 Parking assist
F53 Ventilated seats
F54 Headliner
F55 Front memory seat module
F56 Evaporative emissions leak check
module Fuses
Usage
F57 Voltage current temperature module
F58 –
F59 Engine control module battery
F60 Right motorized seat belt pretensioner
F61 Parking lamps
F62 –
F63 –
F64 Engine control module ignition
F65 Rear window sunshade
F66 Rear vision camera/ Interior rearview
mirror
F67 DC DC converter/Air quality sensor
F68 Damping control module
F69 Television tuner module

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
INDEX 439
Oil (cont'd)Engine Oil Pressure Gauge . . . . . . . 137
Pressure Light . . . . . . . . . . . . . . . . . . . . . 149
Older Children, Restraints . . . . . . . . . . . 96
Online Owner Center . . . . . . . . . . . . . . . 411
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
OnStar Additional Information . . . . 426
OnStar Connections . . . . . . . . . . . . . . . . 423
OnStar Diagnostics . . . . . . . . . . . . . . . . . 425
OnStar Emergency . . . . . . . . . . . . . . . . . . 422
OnStar Navigation . . . . . . . . . . . . . . . . . . 423
OnStar Overview . . . . . . . . . . . . . . . . . . . . 421
OnStar Security . . . . . . . . . . . . . . . . . . . . . 422
Ordering
Service Publications . . . . . . . . . . . . . . 416
Out of Fuel/Engine Unavailable . . . . 227
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Overheating, Engine . . . . . . . . . . . . . . . . 321
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . . . . 224
Shifting Out of . . . . . . . . . . . . . . . . . . . . 225
Parking Brake and P (Park)Mechanism Check . . . . . . . . . . . . . . . 327
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Parking (cont'd)
Over Things That Burn . . . . . . . . . . . 225
Parking Assist . . . . . . . . . . . . . . . . . . . . . . . 254
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . 254
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Passenger Sensing System . . . . . . . . . . 91
Pedestrian Ahead Indicator . . . . . . . . 147
Perchlorate Materials Requirements, California . . . . . . . . . 297
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Plug-In Charging . . . . . . . . . . . . . . . . . . . . 274
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Flows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Indicator Gauge . . . . . . . . . . . . . . . . . . . 136
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Protection, Battery . . . . . . . . . . . . . . . . 189
Retained Accessory (RAP) . . . . . . . . 224
Seat Adjustment . . . . . . . . . . . . . . . . . . . . 67
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Pregnancy, Using Seat Belts . . . . . . . . . 83 Premium Care Maintenance
Cadillac . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390
Privacy Vehicle Data Recording . . . . . . . . . . 419
Program Courtesy Transportation . . . . . . . . . 413
Programmable Charging . . . . . . . . . . . . 152
Proposition
65 Warning,
California . . . . . . . . . . . . . . .297, 324, 374, Back Cover
R
Radio Frequency Statement . . . . . . . . 417
Reading Lamps . . . . . . . . . . . . . . . . . . . . . 188
Ready Indicator . . . . . . . . . . . . . . . . . . . . . 151
Rear Camera Mirror . . . . . . . . . . . . . . . . . 56
Rear Seat Pass-Through Door . . . . . . . 77
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Heated and Ventilated . . . . . . . . . . . . . 77
Rear Storage . . . . . . . . . . . . . . . . . . . . . . . . 116
Rear Vision Camera (RVC) . . . . . . . . . 254
Rear Window Sunshade . . . . . . . . . . . . . 60
Rearview Mirrors
Automatic Dimming . . . . . . . . . . . . . . . . 56
Reclining Seatbacks . . . . . . . . . . . . . . . . . 69
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . 399