CADILLAC CT6 2019 Repair Manual

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
60 KEYS, DOORS, AND WINDOWS
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. SeeIgnition
Positions 0201 and
Retained Accessory Power (RAP) 0206.
1. SLIDE Switch
2. TILT Switch
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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 61
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.
If frost or other conditions prevent
closing, override the feature by closing
the sunroof in manual mode. To stop
movement, release the switch.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose debris.
Wipe the sunroof seal and roof sealing
area using a clean cloth, mild soap,
and water. Do not remove grease from
the sunroof.
If water is seen dripping into the
water drainage system, this is normal.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
62 SEATS AND RESTRAINTS
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . . . . . . 63
Front Seats
Power Seat Adjustment . . . . . . . . . . . 65
Lumbar Adjustment . . . . . . . . . . . . . . . 65
Thigh Support Adjustment . . . . . . . . 66
Reclining Seatbacks . . . . . . . . . . . . . . . 67
Memory Seats . . . . . . . . . . . . . . . . . . . . . . 67
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Lumbar Adjustment . . . . . . . . . . . . . . . 74
Heated and Ventilated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Rear Seat Pass-Through Door . . . . . 75
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . 79
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . . . . . . 82
Seat Belt Extender . . . . . . . . . . . . . . . . . 82 Safety System Check . . . . . . . . . . . . . . 82
Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . 83
Replacing Seat Belt System Parts
after a Crash . . . . . . . . . . . . . . . . . . . . . . 83
Airbag System
Airbag System . . . . . . . . . . . . . . . . . . . . . 84
Where Are the Airbags? . . . . . . . . . . . 85
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
What Makes an Airbag Inflate? . . . 88
How Does an Airbag Restrain? . . . 88
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Passenger Sensing System . . . . . . . . 90
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Adding Equipment to the Airbag-Equipped Vehicle . . . . . . . . 94
Airbag System Check . . . . . . . . . . . . . . 95
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . 95
Child Restraints
Older Children . . . . . . . . . . . . . . . . . . . . . 96
Infants and Young Children . . . . . . 97
Child Restraint Systems . . . . . . . . . 100
Where to Put the Restraint . . . . . . 101
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . 102 Replacing LATCH System Parts
After a Crash . . . . . . . . . . . . . . . . . . . . 108
Securing Child Restraints (With the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . . . . . 108
Securing Child Restraints (With the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . . . . . 111

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SEATS AND RESTRAINTS 63
Head Restraints
The vehicle’s front seats have
adjustable head restraints in the
outboard seating positions.
{Warning
With head restraints that are not
installed and adjusted properly,
there is a greater chance that
occupants will suffer a neck/spinal
injury in a crash. Do not drive until
the head restraints for all occupants
are installed and adjusted properly.
If your vehicle has rear head
restraints that fold down, always
return them to the full upright
position whenever an occupant is
seated in the seat.
Adjust the head restraint so that the
top of the restraint is at the same
height as the top of the occupant's
head. This position reduces the
chance of a neck injury in a crash.
Front Seats
The vehicle's front seats have
adjustable head restraints in the
outboard seating positions.
Pull the head restraint up to raise it.
Try to move the head restraint to
make sure that it is locked in place.
To lower the head restraint, press the
button located on top of the seatback,
and push the head restraint down. Try
to move the head restraint after the
button is released to make sure that it
is locked in place.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
64 SEATS AND RESTRAINTS
The fore and aft position of the head
restraint can be adjusted.
To adjust the head restraint forward
and rearward, press the button located
on the side facing of the head
restraint and move it forward or
rearward until the desired locking
position is reached. Try to move the
head restraint after the button is
released to make sure that it is locked
in place.
The front seat outboard head
restraints are not designed to be
removed.
Rear Seats
The vehicle's rear seats have
adjustable head restraints in the
outboard seating positions.
The height of the head restraint can
be adjusted. Pull the head restraint up
to raise it. Try to move the head
restraint to make sure that it is locked
in place.
To lower the head restraint, press the
button, located on the top of the
seatback, and push the head restraint
down. Try to move the head restraint
after the button is released to make
sure that it is locked in place.Always adjust the head restraint so
that the top of the restraint is at the
same height as the top of the
occupant's head.
Rear outboard head restraints are not
removable.
The rear outboard head restraints are
not designed to be folded.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SEATS AND RESTRAINTS 65
Front Seats
Power Seat Adjustment
{Warning
You can lose control of the vehicle
if you try to adjust a driver seat
while the vehicle is moving. Adjust
the driver seat only when the
vehicle is not moving.
{Warning
The power seats will work with the
ignition off. Children could operate
the power seats and be injured.
Never leave children alone in the
vehicle.
To adjust:
.Move the seat forward or rearward
by sliding the control forward or
rearward.
. Raise or lower the front part of the
seat cushion by moving the front
of the control up or down.
. Raise or lower the seat by moving
the rear of the control up or down.
To adjust the seatback, see Reclining
Seatbacks 067.
To adjust the lumbar support, see
Lumbar Adjustment 065. Some vehicles are equipped with a
feature that activates a vibrating pulse
alert in the driver seat to help avoid
crashes. See
Driver Assistance Systems
0 252.
Lumbar Adjustment
Base Lumbar Adjustment
To adjust lumbar support, if equipped:
.
Press Forward (2) to move lumbar
support forward.
. Press Rearward (1) to move
lumbar support rearward.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
66 SEATS AND RESTRAINTS
Uplevel Lumbar and Upper Back
Support Adjustment
If equipped, the ignition must be on
to use all uplevel seat features.
Platinum Seat
1. Feature Select
2. Up
3. Forward
4. Down
5. Rearward
1. To adjust lumbar support,if equipped: Toggle the Feature
Select (1) to view adjustable seat
options on the infotainment
display. 2. Select lumbar support.
.Press Up (2) to move lumbar
support upward.
. Press Forward (3) to move
lumbar support forward.
. Press Down (4) to move
lumbar support down.
. Press Rearward (5) to move
lumbar support rearward.
To adjust upper back support,
if equipped: 1. Toggle the Feature Select (1) to view adjustable seat options on
the infotainment display.
2. Select Upper Back Support.
3. Press Forward (3) to move support forward or Rearward (5)
to move support rearward.
Thigh Support Adjustment
To adjust thigh support, if equipped:
1. Toggle the Feature Select (3) to view adjustable seat options on
the infotainment display.
2. Select cushion length adjuster.
3. Press and hold the control forward (2) to increase or
rearward (1) to decrease cushion
length.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SEATS AND RESTRAINTS 67
Reclining Seatbacks
To adjust:
.Tilt the top of the control
rearward to recline.
. Tilt the top of the control forward
to raise the seatback.
{Warning
Sitting in a reclined position when
the vehicle is in motion can be
dangerous. Even when buckled up,
the seat belts cannot do their job.
(Continued)
Warning (Continued)
The shoulder belt will not be
against your body. Instead, it will be
in front of you. In a crash, you
could go into it, receiving neck or
other injuries.
The lap belt could go up over your
abdomen. The belt forces would be
there, not at your pelvic bones. This
could cause serious internal
injuries.
For proper protection when the
vehicle is in motion, have the
seatback upright. Then sit well back
in the seat and wear the seat belt
properly.
Do not have a seatback reclined if the
vehicle is moving.
Memory Seats

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
68 SEATS AND RESTRAINTS
If equipped, memory seats allow two
drivers to save and recall their unique
seat positions for driving the vehicle,
and a shared exit position for getting
out of the vehicle. Other feature
positions may also be saved, such as
power mirrors and power steering
wheel, if equipped. Memory positions
are linked to RKE transmitter 1 or 2
for automatic memory recalls.
Before saving, adjust all available
memory feature positions. Turn the
ignition on and then press and release
SET; a beep will sound. Then
immediately press and hold 1, 2,
or
B(Exit) until two beeps sound.
To manually recall these positions,
press and hold 1, 2, or
Buntil the
saved position is reached. Follow the
instructions under “Saving Memory
Positions.”
The vehicle identifies the current
driver’s RKE transmitter number (1–
8). See Remote Keyless Entry (RKE)
System Operation 029. Only RKE
transmitters 1 and 2 can be used for
automatic memory recalls. A Driver
Information Center (DIC) welcome
message indicating the transmitter number may display for the first few
ignition cycles following a transmitter
change. For Seat Entry Memory to
work properly, save the positions to
the memory button (1 or 2) matching
the RKE transmitter number displayed
in the DIC welcome message. Carry
the linked RKE transmitter when
entering the vehicle.
Memory adjustments may not be
available upon delivery or after service
until steps in
“Saving Memory
Positions” section are performed.
Vehicle Personalization Settings
. To have the Seat Entry Memory
movement begin when the vehicle
is started, select the Settings
menu, then Vehicle, then Seating
Position, and then Seat Entry
Memory. Select On or Off. See
“Seat Entry Memory” later in this
section.
. Seat Exit Memory movement
begins when the ignition is turned
off and the driver door is opened,
or when the ignition is turned off
with the driver door already
opened, select the Settings menu, then Vehicle, then Seating
Position, and then Seat Exit
Memory. Select On or Off. See
“Seat Exit Memory”
later in this
section.
. See Vehicle Personalization 0157
for additional setting information.
Identifying Driver Number
To identify the driver number: 1. Start the vehicle with a different key or RKE transmitter. The DIC
should display the driver
number; 1 or 2. Turn the ignition
off and remove the key or RKE
transmitter from the vehicle.
2. Start the vehicle with the initial key or RKE transmitter. The DIC
should display the other driver
number not shown in Step 1.
Saving Memory Positions
Read these instructions completely
before saving memory positions.
To save preferred driving positions
1 and 2: 1. Turn the ignition on or to ACC/ ACCESSORY.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SEATS AND RESTRAINTS 69
A DIC welcome message may
indicate driver number 1 or 2.
2. Adjust all available memory features to the desired driving
position.
3. Press and release SET; a beep will sound.
4. Immediately press and hold the 1 or 2 memory button matching
the above DIC welcome message
until two beeps sound.
If too much time passes between
releasing SET and pressing 1, the
memory position will not be
saved and two beeps will not
sound. Repeat Steps 3 and 4.
1 or 2 corresponds to the driver
number. See “Identifying Driver
Number” previously in this
section.
5. Repeat Steps 1–4 for a second driver using 1 or 2.
To save the position for
Band Seat
Exit Memory, repeat Steps 1–4 using
B. This saves the position for getting
out of the vehicle. Save preferred memory feature
positions to both 1 and 2 if you are
the only driver.
Manually Recalling Memory
Positions
Press and hold 1, 2, or
Bto recall
the previously saved memory
positions.
To stop Manual Memory Recall
movement, release 1, 2, or
Bor press
any of the following controls:
. Power seat
. Memory SET
. Power mirror, with the driver or
passenger side mirror selected
. Power steering wheel, if equipped
Seat Entry Memory
If equipped with memory seat 1, 2,
or
Bbuttons on the passenger door,
those positions must be recalled
manually. They will not be linked to
an RKE transmitter.
The vehicle identifies the number of
the current driver’s RKE transmitter
(1–8). See Remote Keyless Entry (RKE) System Operation
029. If the RKE
transmitter is 1 or 2, and Seat Entry
Memory is programmed on in vehicle
personalization, the positions saved to
the same memory button number 1 or
2 are automatically recalled when the
ignition is turned on, or turned from
off to ACC/ACCESSORY. RKE
transmitters 3–8 will not provide
automatic memory recalls.
To turn Seat Entry Memory on or off,
see "Vehicle Personalization Settings"
previously in this section and Vehicle
Personalization 0157.
The vehicle must be in P (Park) to
start Seat Entry Memory. Seat Entry
Memory will complete if the vehicle is
shifted out of P (Park) prior to
reaching the saved memory position.
To stop Seat Entry Memory
movement, turn the ignition off or
press any of the following controls:
. Power seat
. Memory SET, 1, 2, or
B
.Power mirror, with the driver or
passenger side mirror selected
. Power steering wheel, if equipped