tire size CADILLAC CTS 2007 1.G User Guide

Federal Communications Commission
(FCC) and Industry and Science Canada
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
1. This device may not cause harmful
interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation.
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Changes or modications to this system by other
than an authorized service facility could void
authorization to use this equipment.
Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
If your vehicle has P245/45ZR18 96W size tires,
GM recommends rotating these tires at 3,000 mile
(4 800 km) intervals. These tires are optimized for
dry traction and handling performance. Tread life
may be 15,000 miles (24 140 km) or less for these
tires, depending on how and where you drive.
Any time you notice unusual wear, rotate your
vehicle’s tires as soon as possible and check
wheel alignment. Also check for damaged tires or
wheels. SeeWhen It Is Time for New Tires on
page 411andWheel Replacement on page 416for
more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The
rst rotation is the most important. SeeScheduled
Maintenance on page 462.
409

When It Is Time for New Tires
One way to tell when it
is time for new tires is
to check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of tread
remaining.
You need a new tire if any of the following
statements are true:
You can see the indicators at three or more
places around the tire.
You can see cord or fabric showing through the
tire’s rubber.
The tread or sidewall is cracked, cut, or
snagged deep enough to show cord or fabric.
The tire has a bump, bulge, or split.
The tire has a puncture, cut, or other damage
that cannot be repaired well because of the size
or location of the damage.
Buying New Tires
GM has developed and matched specic tires for
your vehicle. The original equipment tires installed
on your vehicle, when it was new, were designed to
meet General Motors Tire Performance Criteria
Specication (TPC Spec) system rating. If you need
replacement tires, GM strongly recommends that
you get tires with the same TPC Spec rating. This
way, your vehicle will continue to have tires that are
designed to give the same performance and vehicle
safety, during normal use, as the original tires.
GM’s exclusive TPC Spec system considers over a
dozen critical specications that impact the overall
performance of your vehicle, including brake
system performance, ride and handling, traction
control, and tire pressure monitoring performance.
GM’s TPC Spec number is molded onto the tire’s
sidewall by the tire manufacturer. If the tires have
an all-season tread design, the TPC Spec number
will be followed by a MS for mud and snow. See
Tire Sidewall Labeling on page 394for additional
information.
The 18-inch performance tires, size
245/45R18 96V, used on some vehicles,
meet the General Motors Tire Performance
Criteria Specication (TPC Spec) rating but the
411

TPC Spec code has not been molded onto the
tire’s sidewall. If your vehicle has these tires, and
you need to replace them, you can still get
these TPC Spec rated tires by asking your
GM dealer. Your GM dealer can order these tires
by part number. This way, your vehicle will
continue to give the proper endurance, handling,
traction, and ride as the original tires.
Winter tires with the same speed rating as your
vehicle’s original equipment tires may not be
available for H, V, W, and ZR speed rated tires.
If you choose snow tires with a lower speed rating,
never exceed the tire’s maximum speed capability.
{CAUTION:
Mixing tires could cause you to lose
control of your vehicle while driving. If
you mix tires of different sizes, brands, or
types (radial and bias-belted tires) the
vehicle may not handle properly, and you
could have a crash. Using tires of
different sizes, brands, or types may also
cause damage to your vehicle. Be sure to
use the correct size, brand, and type of
tires on all wheels.
Your vehicle may have a compact spare
tire and wheel assembly. It is all right to
drive with your vehicle’s compact spare
tire temporarily. It was developed for use
on your vehicle. SeeCompact Spare Tire
(CTS Only) on page 434.
412

{CAUTION:
If you use bias-ply tires on your vehicle,
the wheel rim anges could develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly, causing
a crash. Use only radial-ply tires with the
wheels on your vehicle.
If you must replace your vehicle’s tires with those
that do not have a TPC Spec number, make
sure they are the same size, load range, speed
rating, and construction type (radial and
bias-belted tires) as your vehicle’s original tires.Vehicles that have a tire pressure monitoring
system may give an inaccurate low-pressure
warning if non-TPC Spec rated tires are installed
on your vehicle. Non-TPC Spec rated tires
may give a low-pressure warning that is higher or
lower than the proper warning level you would
get with TPC Spec rated tires. SeeTire Pressure
Monitor System on page 405.
Your vehicle’s original equipment tires are listed
on the Tire and Loading Information Label.
This label is attached to the vehicle’s center pillar
(B-pillar). SeeLoading Your Vehicle on page 321,
for more information about the Tire and Loading
Information Label and its location on your vehicle.
413

Different Size Tires and Wheels
If you add wheels or tires that are a different size
than your original equipment wheels and tires,
this may affect the way your vehicle performs,
including its braking, ride and handling
characteristics, stability, and resistance to rollover.
Additionally, if your vehicle has electronic
systems such as, anti-lock brakes, traction control,
and electronic stability control, the performance
of these systems can be affected.
{CAUTION:
If you add different sized wheels, your
vehicle may not provide an acceptable
level of performance and safety if tires not
recommended for those wheels are
selected. You may increase the chance
that you will crash and suffer serious
injury. Only use GM specic wheel and
tire systems developed for your vehicle,
and have them properly installed by a GM
certied technician.SeeBuying New Tires on page 411and
Accessories and Modications on page 332for
additional information.
Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use
spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
414

Tire Chains
{CAUTION:
Do not use tire chains. There is not
enough clearance. Tire chains used on a
vehicle without the proper amount of
clearance can cause damage to the
brakes, suspension, or other vehicle
parts. The area damaged by the tire
chains could cause you to lose control of
your vehicle and you or others may be
injured in a crash. Use another type of
traction device only if its manufacturer
recommends it for use on your vehicle
and tire size combination and road
conditions. Follow that manufacturer’s
instructions. To help avoid damage to
your vehicle, drive slowly, re-adjust or
remove the device if it is contacting your
vehicle, and do not spin your wheels.
If you do nd traction devices that will t,
install them on the rear tires.
Lifting Your Vehicle (CTS-V)
{CAUTION:
Lifting a vehicle can cause an injury.
The vehicle can slip off the jack and roll
over you or other people. You and they
could be badly injured. Find a level place
to lift your vehicle. To help prevent the
vehicle from moving:
1. Place the shift lever in REVERSE (R)
and rmly apply the parking brake.
2. Turn off the engine.
To be even more certain the vehicle will
not move, you can put blocks in front of
and behind the wheels. Also seeParking
Your Vehicle (Manual Transmission) on
page 132andParking Brake on page 128
for additional information.
418

14. Tighten the wheel
nuts rmly in a
crisscross sequence
as shown.
Notice:Wheel covers will not t on your
compact spare. If you try to put a wheel cover
on the compact spare, you could damage
the cover or the spare.
Do not try to put a wheel cover on your compact
spare tire. It will note t. Store the wheel cover
in the trunk until you have the at tire repaired or
replaced.Storing a Flat or Spare Tire and
Tools (CTS Only)
{CAUTION:
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.
After you have put the compact spare tire on your
vehicle, you will need to store the at tire in
your trunk.
Remove the foam support so that the at tire will
t in the storage area. Place the at tire with
the appearance-side face down and store the jack
container in the center of the tire. See the
diagram for more information.
The compact spare is for temporary use only.
Replace the compact spare tire with a full-size tire
as soon as you can.
433

Use the following diagram as a guide for storing the
compact spare tire in the trunk:
A. Compact Spare
Tire Cover
Wing Nut
B. Compact Spare
Tire Cover
C. Plastic Wing Nut
D. Retainer
E. Jack Container
with Wheel
Wrench and JackF. Flat Road Tire
G. Compact
Spare Tire
H. Foam Insert
I. Bolt
J. Wheel Wrench
K. JackCompact Spare Tire (CTS Only)
Although the compact spare tire was fully inated
when the vehicle was new, it can lose air after
a time. Check the ination pressure regularly.
It should be 60 psi (420 kPa).
After installing the compact spare on the vehicle,
stop as soon as possible and make sure the
spare tire is correctly inated. The compact spare
is made to perform well at speeds up to 65 mph
(105 km/h) for distances up to 3,000 miles
(5 000 km), so you can nish your trip and have
the full-size tire repaired or replaced at your
convenience. Of course, it is best to replace the
spare with a full-size tire as soon as possible.
The spare tire will last longer and be in good
shape in case it is needed again.
Notice:When the compact spare is installed,
do not take your vehicle through an automatic
car wash with guide rails. The compact
spare can get caught on the rails. That can
damage the tire and wheel, and maybe
other parts of your vehicle.
Do not use the compact spare on other vehicles.
434

Theft-Deterrent, Radio................................. 279
Theft-Deterrent System................................ 111
Theft-Deterrent Systems.............................. 111
Immobilizer.............................................. 113
Immobilizer Operation.............................. 114
Tilt Wheel.................................................... 169
Time, Setting............................................... 259
Tire
Pressure Light.......................................... 208
Pressure Warning Message...................... 221
Tires........................................................... 392
Aluminum or Chrome-Plated
Wheels, Cleaning.................................. 441
Buying New Tires..................................... 411
Chains..................................................... 418
Changing a Flat Tire................................ 424
Cleaning.................................................. 442
Compact Spare Tire................................. 434
Different Size........................................... 414
High-Speed Operation.............................. 404
If a Tire Goes Flat................................... 422
Ination - Tire Pressure............................ 402
Inspection and Rotation............................ 409
Installing the Spare Tire........................... 426
Lifting Your Vehicle.................................. 418
Pressure Monitor System......................... 405Tires (cont.)
Removing the Flat Tire............................. 426
Removing the Spare Tire and Tools......... 425
Run-Flat................................................... 400
Storing a Flat or Spare Tire and Tools..... 433
Tire Sidewall Labeling.............................. 394
Tire Terminology and Denitions............... 397
Uniform Tire Quality Grading.................... 414
Wheel Alignment and Tire Balance........... 416
Wheel Replacement................................. 416
When It Is Time for New Tires................. 411
Winter Tires............................................. 393
Towing
Recreational Vehicle................................. 326
Towing a Trailer....................................... 328
Your Vehicle............................................. 326
Traction
Control System (TCS).....................293, 295
Control System Warning Light.................. 206
Limited-Slip Rear Axle.............................. 297
StabiliTrak
®System................................. 297
Transmission
Fluid, Automatic....................................... 353
Fluid Hot Message................................... 219
Fluid, Manual........................................... 354
Transmission Operation, Automatic.............. 122
516

Transmission Operation, Manual.................. 126
Trip Odometers........................................... 200
Trunk.......................................................... 104
Turn and Lane-Change Signals................... 171
Turn Signal/Multifunction Lever.................... 171
U
Understanding Radio Reception................... 282
Uniform Tire Quality Grading....................... 414
Universal Home Remote System................. 147
Operation........................................148, 152
System Identication................................ 146
V
Vehicle
Control..................................................... 290
Damage Warnings....................................... 5
Loading.................................................... 321
Parking Your............................................ 132
Symbols...................................................... 5Vehicle Data Collection and Event
Data Recorders........................................ 494
Vehicle Identication
Number (VIN).......................................... 445
Service Parts Identication Label.............. 445
Vehicle Personalization
DIC .......................................................... 242
Ventilation Adjustment.................................. 194
Visors.......................................................... 111
W
Warning Lights, Gages and Indicators......... 197
Warnings
DIC Warnings and Messages................... 232
Hazard Warning Flashers......................... 168
Other Warning Devices............................ 168
Safety and Symbols..................................... 4
Vehicle Damage.......................................... 5
Wheels
Alignment and Tire Balance..................... 416
Different Size........................................... 414
Replacement............................................ 416
517