2017 CADILLAC CT6 wheel size

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
288 VEHICLE CARE
Warning (Continued)
and cause a crash. Use only
radial-ply tires with the wheels
on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size, load
range, speed rating, and
construction type (radial) as the
original tires.
Vehicles that have a tire pressure
monitoring system could give an
inaccurate low-pressure warning if
non-TPC Spec rated tires are
installed. See Tire Pressure Monitor
Operation 0281.
The Tire and Loading Information
label indicates the original
equipment tires on the vehicle.
See Vehicle Load Limits 0191, for
the label location and more
information about the Tire and
Loading Information label.Different Size Tires and
Wheels
If wheels or tires are installed that are
a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This increases
the chance of a crash and serious
injury. Only use GM specific wheel
and tire systems developed for the
vehicle, and have them properly
installed by a GM certified
technician. See
Buying New Tires 0286 and
Accessories and Modifications 0245.
Wheel Alignment and Tire
Balance
The tires and wheels were aligned and
balanced at the factory to provide the
longest tire life and best overall
performance. Adjustments to wheel
alignment and tire balancing are not
necessary on a regular basis. Consider
an alignment check if there is unusual
tire wear or the vehicle is significantly
pulling to one side or the other. Some
slight pull to the left or right,
depending on the crown of the road
and/or other road surface variations
such as troughs or ruts, is normal.
If the vehicle is vibrating when driving
on a smooth road, the tires and
wheels may need to be rebalanced.
See your dealer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts, and wheel nuts
should be replaced. If the wheel leaks

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
VEHICLE CARE 289
air, replace it. Some aluminum wheels
can be repaired. See your dealer if any
of these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the same
load-carrying capacity, diameter,
width, offset, and be mounted the
same way as the one it replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor System
(TPMS) sensors with new GM original
equipment parts.
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel nuts
can be dangerous. It could affect
the braking and handling of the
vehicle. Tires can lose air, and
cause loss of control, causing a
crash. Always use the correct wheel,
wheel bolts, and wheel nuts for
replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or odometer
calibration, headlamp aim, bumper
height, vehicle ground clearance,
and tire or tire chain clearance to
the body and chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used one
is dangerous. How it has been used
or how far it has been driven may
be unknown. It could fail suddenly
and cause a crash. When replacing
wheels, use a new GM original
equipment wheel.
Tire Chains
Caution
Use tire chains only where legal and
only when necessary. Use low
profile chains that add no more
than 10 mm thickness to the tire
tread and inner sidewall. Use chains
that are the proper size for the tires.
Install them on the tires of the rear
axle. Do not use chains on the tires
of the front axle. Tighten them as
tightly as possible with the ends
securely fastened. Drive slowly and
follow the chain manufacturer's
instructions. If the chains contact
the vehicle, stop and retighten
them. If the contact continues, slow
down until it stops. Driving too fast
or spinning the wheels with chains
on will damage the vehicle.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires are
maintained properly. SeeTires0276.
If air goes out of a tire, it is much

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
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

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
336 INDEX
Vehicle CareTire Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Vehicle Hold Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 207
Vehicle Hold (AVH)
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 207
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 182
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . 125
W
Warning Brake System Light . . . . . . . . . . . . . . . 129
Caution and Danger . . . . . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . . . . . 238
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . 166
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 260 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Wheels Alignment and Tire Balance . . . . . 288
Different Size . . . . . . . . . . . . . . . . . . . . . . 288
Replacement . . . . . . . . . . . . . . . . . . . . . . 288
When It Is Time for New Tires . . . . 286
Where to Put the Restraint . . . . . . . . . 90 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 266
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 109
Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 277
Wiper Blade Replacement . . . . . . . . . . 265
Wireless Charging . . . . . . . . . . . . . . . . . . 113