2023 CADILLAC CT4 lumbar support

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
36 Seats and Restraints
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . 37
Front Seats
Power Seat Adjustment . . . 38
Thigh SupportAdjustment . . . . . . . . . . . . . . . . . . 39
Reclining Seatbacks . . . . . . . . 39
Lumbar Adjustment . . . . . . . . 40
Massage . . . . . . . . . . . . . . . . . . . . . . . . 41
Memory Seats . . . . . . . . . . . . . . . . 41
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . 45
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 47
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . 49
Buckle To Drive . . . . . . . . . . . . . . 50
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 51
Lap-Shoulder Belt . . . . . . . . . . 54
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . 57
Seat Belt Extender . . . . . . . . . 57
Safety System Check . . . . . . 57 Seat Belt Care . . . . . . . . . . . . . . . 58
Replacing Seat Belt
System Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Airbag System
Airbag System . . . . . . . . . . . . . . . 59
Where Are the Airbags? . . . 61
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . 62
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 63
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . . 64
What Will You See after an Airbag Inflates? . . . . . . . . 64
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . . . 66
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 70
Adding Equipment to the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 70
Airbag System Check . . . . . . . 71
Replacing Airbag System Parts after a Crash . . . . . . . 72
Child Restraints
Older Children . . . . . . . . . . . . . . . . 72
Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . . . 74
Child Restraint Systems . . . 77
Where to Put the Restraint . . . . . . . . . . . . . . . . . . . . . 79
Lower Anchors and Tethers for Children
(LATCH System) . . . . . . . . . . . 80
Replacing LATCH System Parts After a Crash . . . . . . . 87
Securing Child Restraints (With the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . 88
Securing Child Restraints (With the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . 90

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 39
If the vehicle is not in P (Park),
seat travel may be limited.
Release and press the seat
switch again to continue
movement.
If something has blocked the
seat during movement, the
movement may stop. Remove
the obstruction and try the
adjustment again. If movement
is still not available, see your
dealer.
To adjust the seatback, see
Reclining Seatbacks039.
To adjust the lumbar support,
see Lumbar Adjustment 040.
Some vehicles are equipped
with a Safety Alert Seat. This
feature activates a vibrating
pulse alert in the driver seat to
help the driver avoid crashes.Thigh Support
Adjustment
If equipped, pull up on the
lever. Then pull or push on the
support to lengthen or
shorten. Release the lever to
lock in place.
Reclining Seatbacks
{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.
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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
40 Seats and Restraints
Do not have a seatback
reclined if the vehicle is
moving.
To adjust the seatback:
.Tilt the top of the control
rearward to recline.
.Tilt the top of the control
forward to raise.
Lumbar Adjustment
1. To adjust lumbar support,if equipped:
.If equipped, press Up (1)
to move lumbar support
upward.
.Press Rearward (2) to
move lumbar support
rearward.
.If equipped, press
Down (3) to move lumbar
support down.
.Press Forward (4) to
move lumbar support
forward.
Uplevel Lumbar
Adjustment
To adjust uplevel lumbar
support, if equipped:
.Press and release or hold
Feature Select (1) to scroll to
lumbar support on the
infotainment display.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 41
.Press Forward (5) or
Rearward (3) to adjust
lumbar forward or rearward.
.Press Up (2) or Down (4) to
adjust lumbar up or down.
Bolster Support
Adjustment
High Performance SeatShown, Others Similar
Back Bolster Support
To adjust back bolster
support, if equipped:
Press and release or hold
Feature Select (1) to scroll to
bolster support on the infotainment display. Press
Forward (3) or Rearward (2) to
adjust back bolster support
inward or outward.
Cushion Bolster Support
To adjust cushion bolster
support, if equipped:
Press and release or hold
Feature Select (1) to scroll to
bolster support on the
infotainment display. Press
Forward (3) or Rearward (2) to
adjust cushion bolster support
inward or outward.
Massage
If equipped, the ignition must
be on to use the massage
feature.
To turn the massage feature
on or off press the massage
control button. When the
massage feature is turned off,
it will complete the massage
cycle before returning to the
initial position.
Memory Seats
Overview
If equipped, the memory seat
feature allows drivers to save
their unique driving positions

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
INDEX 509
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . 370
Accessory Power . . . . . . . . . . . .267
Active Rev Match . . . . . . . . . . . . . . . . . . . 285
Adaptive Cruise Control . . . . . . . . . . . . . . 304
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 366
Additional OnStar Information . . . . . . . . 501
Adjustments Lumbar, Front Seats . . . . . . . 40
Thigh Support . . . . . . . . . . . . . . . . 39
Agreements Trademarks andLicense . . . . . . . . . . . . . . . . . . . . . . 215
Air
Cleaner/Filter, Engine . . . . 384
Conditioning . . . . . . . . . . . . . . . . 225
Filter Life System . . . . . . . . . 383
Filter, PassengerCompartment . . . . . . . . . . . . . . 231
Vents . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Airbag System . . . . . . . . . . . . . . . . . 59 Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Airbag System (cont'd)
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 64
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . . . 66
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 63
What Will You See after an Airbag
Inflates? . . . . . . . . . . . . . . . . . . . . . . 64
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 62
Where Are the Airbags? . . . . . . . . . . . . . . . . . . . . . . . 61
Airbags Adding Equipment to
the Vehicle . . . . . . . . . . . . . . . . . . . 70
Passenger Status Indicator . . . . . . . . . . . . . . . . . . . . . . 117
Readiness Light . . . . . . . . . . . . . 116
Replacing System Parts after a Crash . . . . . . . 72
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . 70
Alarm
Vehicle Security . . . . . . . . . . . . . 24