
Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
VEHICLE CARE 293
pads, as shown. The jack must
not be used in any other
position.
9. Raise the vehicle by turning thejack handle clockwise. Raise the
vehicle far enough off the ground
so there is enough room for the
road tire to clear the ground.
10. Remove all of the wheel nuts.
11. Remove the flat tire.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any rust
or dirt from places where the wheel
attaches to the vehicle. In an
emergency, a cloth or a paper towel
(Continued)
Warning (Continued)
can be used; however, use a scraper
or wire brush later to remove all
rust or dirt.
12. Remove any rust or dirt from thewheel bolts, mounting surfaces,
and spare wheel.
13. Place the compact spare tire on the wheel-mounting surface.

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
294 VEHICLE CARE
{Warning
Never use oil or grease on bolts or
nuts because the nuts might come
loose. The vehicle's wheel could fall
off, causing a crash.
14. Reinstall the wheel nuts. Tighten each nut by hand until the wheel
is held against the hub.
15. Lower the vehicle by turning the jack handle counterclockwise.
{Warning
Wheel nuts that are improperly or
incorrectly tightened can cause the
wheels to become loose or come off.
The wheel nuts should be tightened
with a torque wrench to the proper
torque specification after replacing.
Follow the torque specification
supplied by the aftermarket
manufacturer when using accessory
locking wheel nuts. See Capacities
and Specifications 0322 for original
equipment wheel nut torque
specifications.
Caution
Improperly tightened wheel nuts
can lead to brake pulsation and
rotor damage. To avoid expensive
brake repairs, evenly tighten the
wheel nuts in the proper sequence
and to the proper torque
specification. See Capacities and
Specifications 0322 for the wheel
nut torque specification.
16. Tighten the wheel nuts firmly in a crisscross sequence, as shown. 17. Lower the jack all the way and
remove the jack from under the
vehicle.
18. Tighten the wheel nuts firmly with the wheel wrench.
Storing a Flat or Spare Tire and
Tools
{Warning
Storing a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.
To store the flat tire and tools: 1. Open the trunk.
2. Replace the jack and tools as they were, originally, stored in
their container near the
spare tire.
3. Replace the spare tire cover.
4. Place the tire, lying flat, in the rear storage compartment.

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
VEHICLE CARE 295
If there is a loop on the end of
the strap used to secure the flat
tire, go to Step 5. If there is not a
loop, go to Step 8.
5. Route the loop end of thestrap (3) through one of the
cargo tie-downs (1) in the rear of
the vehicle.
6. Route the hook (2) through the loop (3).
7. Pull the strap to tighten it around the cargo tie-down (1).
8. Route the hook end of the strap
through the wheel.
9. Attach the hook to the cargo tie-down in the rear of the
vehicle.
10. Tighten the strap.
The compact spare is for temporary
use only. Replace the compact spare
tire with a full-size tire as soon as
you can.
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a crash
and you or others could be injured.
Use only one compact spare tire at
a time.
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure regularly.
It should be 420 kPa (60 psi).
Stop as soon as possible and check
that the spare tire is correctly inflated
after being installed on the vehicle.
The compact spare tire is designed for
temporary use only. The vehicle will
perform differently with the spare tire
installed and it is recommended that
the vehicle speed be limited to
80 km/h (50 mph). To conserve the
tread of the spare tire, have the

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
296 VEHICLE CARE
standard tire repaired or replaced as
soon as convenient and return the
spare tire to the storage area.
When using a compact spare tire, the
AWD (if equipped), ABS, and Traction
Control systems may engage until the
spare tire is recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible wheel slip.
Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact spare
can get caught on the rails which
can damage the tire, wheel, and
other parts of the vehicle.Do not use the compact spare on
other vehicles.
Do not mix the compact spare tire or
wheel with other wheels or tires. They
will not fit. Keep the spare tire and its
wheel together.
Caution
Tire chains will not fit the compact
spare. Using them can damage the
vehicle and the chains. Do not use
tire chains on the compact spare.
Jump Starting
For more information about the
vehicle battery, see
Battery0263.
If the battery has run down, try to use
another vehicle and some jumper
cables to start your vehicle. Be sure to
use the following steps to do it safely.
{Warning
Batteries can hurt you. They can be
dangerous because: . They contain acid that can
burn you.
. They contain gas that can
explode or ignite.
. They contain enough
electricity to burn you.
If you do not follow these steps
exactly, some or all of these things
can hurt you.

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
334 INDEX
Ride Control SystemsMessages . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Roads Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . 188
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . 284
Routing, Engine Drive Belt . . . . . . . . . 324
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
S
Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . 69
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . 125
Replacing after a Crash . . . . . . . . . . . . . 73
Use During Pregnancy . . . . . . . . . . . . . . 72
Safety Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Safety System Check . . . . . . . . . . . . . . . . 72
Seats Head Restraints . . . . . . . . . . . . . . . . . . . . . 56
Heated and Ventilated Front . . . . . . . 62
Heated and Ventilated, Rear . . . . . . . 66
Lumbar Adjustment, Front . . . . . . . . . 58 Seats (cont'd)
Lumbar Adjustment, Rear . . . . . . . . . . 65
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Power Adjustment, Front . . . . . . . . . . 58
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Reclining Seatbacks . . . . . . . . . . . . . . . . 60
Securing Child Restraints . . . . . . . 98, 99
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . 42
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 Accessories and
Modifications . . . . . . . . . . . . . . . . . . . . 245
Doing Your Own Work . . . . . . . . . . . 245
Engine Soon Light . . . . . . . . . . . . . . . . 127
Maintenance Records . . . . . . . . . . . . 320
Maintenance, General Information . . . . . . . . . . . . . . . . . . . . . . 310
Parts Identification Label . . . . . . . . 321
Vehicle Messages . . . . . . . . . . . . . . . . . 149
Service Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Services Special Application . . . . . . . . . . . . . . . 316
Servicing the Airbag . . . . . . . . . . . . . . . . . 83 Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . . . . . 264
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . 199
Side Blind Zone Alert (SBZA) . . . . . . 236
Signals, Turn and Lane-Change . . . . 166
Spare Tire
Compact . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Special Application Services . . . . . . . 316
Specifications and Capacities . . . . . . 322
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . 121
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . 207
Start Vehicle, Remote . . . . . . . . . . . . . . . 34
Starter Switch Check . . . . . . . . . . . . . . . 264
Starting the Engine . . . . . . . . . . . . . . . . . 196
Starting the Vehicle Messages . . . . . 150
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Heated Wheel . . . . . . . . . . . . . . . . . . . . . 108
Wheel Adjustment . . . . . . . . . . . . . . . . 108
Wheel Controls . . . . . . . . . . . . . . . . . . . 108
Steering System Messages . . . . . . . . . 149
Storage
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
INDEX 335
Storage AreasArmrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Center Console . . . . . . . . . . . . . . . . . . . . 104
Convenience Net . . . . . . . . . . . . . . . . . . 105
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . 103
Instrument Panel . . . . . . . . . . . . . . . . . 103
Storage Compartments . . . . . . . . . . . . . 103
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . 190
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . 278
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Sunshade
Rear Window . . . . . . . . . . . . . . . . . . . . . . . . 51
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward Collision Alert (FCA) . . . . 228
Infotainment . . . . . . . . . . . . . . . . . . . . . . 170
Night Vision . . . . . . . . . . . . . . . . . . . . . . . 234
Systems Driver Assistance . . . . . . . . . . . . . . . . . 221
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 121
Theft-Deterrent Systems . . . . . . . . . . . . 44
Thigh Support Adjustment . . . . . . . . . . 59
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 277
Buying New Tires . . . . . . . . . . . . . . . . . 286 Tires (cont'd)
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Compact Spare . . . . . . . . . . . . . . . . . . . . 295
Different Size . . . . . . . . . . . . . . . . . . . . . . 288
If a Tire Goes Flat . . . . . . . . . . . . . . . . 289
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 284
Low Profile . . . . . . . . . . . . . . . . . . . . . . . . 278
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Pressure . . . . . . . . . . . . . . . . . . . . . . 279, 280
Pressure Light . . . . . . . . . . . . . . . . . . . . . 133
Pressure Monitor Operation . . . . . . 281
Pressure Monitor System . . . . . . . . 280
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Wheel Replacement . . . . . . . . . . . . . . 288
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Towing General Information . . . . . . . . . . . . . . 243
Recreational Vehicle . . . . . . . . . . . . . . 299
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Traction Control System (TCS)/StabiliTrak
®Light . . . . . . . . . . . . . . . 132
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . . . . . . 208
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 201
Fluid, Automatic . . . . . . . . . . . . . . . . . . 253
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 121
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Turn and Lane-Change Signals . . . . 166
U
Universal Remote System
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Programming . . . . . . . . . . . . . . . . . . . . . . 160
V
VehicleAlarm System . . . . . . . . . . . . . . . . . . . . . . . 42
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Identification Number (VIN) . . . . . 321
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 191
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Personalization . . . . . . . . . . . . . . . . . . . 152
Reminder Messages . . . . . . . . . . . . . . 151
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . 34
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Speed Messages . . . . . . . . . . . . . . . . . . . 151
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Vehicle Ahead Indicator . . . . . . . . . . . . 131