warning light CADILLAC CTS 2007 1.G Service Manual

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that
make a high-pitched warning sound when the
brake pads are worn and new pads are needed.
The sound may come and go or be heard all
the time your vehicle is moving, except when you
are pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That
could lead to an accident. When you hear
the brake wear warning sound, have your
vehicle serviced.Notice:Continuing to drive with worn-out
brake pads could result in costly brake repair.
Some driving conditions or climates may cause
a brake squeal when the brakes are rst applied or
lightly applied. This does not mean something is
wrong with your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated,
inspect brake pads for wear and evenly tighten
wheel nuts in the proper sequence to GM torque
specications.
Brake linings should always be replaced as
complete axle sets.
373

Vehicle Capacity Weight:The number of
designated seating positions multiplied by 150 lbs
(68 kg) plus the rated cargo load. SeeLoading
Your Vehicle on page 321.
Vehicle Maximum Load on the Tire:Load on an
individual tire due to curb weight, accessory
weight, occupant weight, and cargo weight.
Vehicle Placard:A label permanently attached to
a vehicle showing the vehicle’s capacity weight
and the original equipment tire size and
recommended ination pressure. See “Tire and
Loading Information Label” underLoading
Your Vehicle on page 321.
Run-Flat Tires (CTS-V)
If your vehicle has run-at tires, there is no spare
tire and no tire changing equipment. Your
vehicle also has a Tire Pressure Monitor (TPM)
which will alert you if there is a loss of tire pressure
in any of the tires. SeeTire Pressure Monitor
System on page 405.
{CAUTION:
When the low tire warning light is
displayed on the instrument panel cluster,
your vehicle’s handling capabilities will be
reduced during severe maneuvers. If you
drive too fast, you could lose control of
your vehicle. You or others could be
injured. Do not drive over 55 mph (90 km/h)
when the low tire warning light is
displayed. Drive cautiously and check your
tire pressures as soon as you can.
If a tire goes at, you will not need to stop on the
side of the road to change the tire. You can
just keep on driving. The tire can operate
effectively with no air pressure for up to 65 miles
(105 km) at speeds up to 55 mph (90 km/h).
The shorter the distance you drive and the slower
the speed, the greater the chance that the tire
will not have to be replaced. When a tire is lled
with air, it provides a cushion between the
road and the wheel.
400

If a low tire pressure condition is detected, the
TPMS will display the Check Tire Pressure
message on the DIC or message center and, at the
same time, illuminate the low tire pressure warning
symbol on the instrument panel cluster.
Each tire, including the spare (if provided), should
be checked monthly when cold and inated to the
ination pressure recommended by the vehicle
manufacturer on the vehicle placard or tire ination
pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle
placard or tire ination pressure label, you should
determine the proper tire ination pressure for
those tires.)
As an added safety
feature, your vehicle has
been equipped with a
tire pressure monitoring
system (TPMS) that
illuminates a low tire
pressure telltale when
one or more of your tires
is signicantly
under-inated.Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires
as soon as possible, and inate them to the
proper pressure. Driving on a signicantly
under-inated tire causes the tire to overheat and
can lead to the tire failure. Under-ination also
reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure,
even if under-ination has not reached the level to
trigger illumination of the TPMS low tire pressure
telltale.
The Tire and Loading Information label shows the
size of your vehicle’s original tires and their
recommended cold ination pressures. See
Loading Your Vehicle on page 321, for the location
of the tire and loading information label. Also
seeInation - Tire Pressure on page 402.
The tire pressure warning light may come on in
cool weather when the vehicle is rst started, and
then turn off as you start to drive. This could
be an early indicator that the tire pressures are
getting low and need to be inated to the
proper pressure.
406

While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specied
government test course. For example, a tire
graded 150 would wear one and a half (1.5) times
as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from
the norm due to variations in driving habits, service
practices, and differences in road characteristics
and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA,
A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured under
controlled conditions on specied government test
surfaces of asphalt and concrete. A tire marked C
may have poor traction performance.
Warning:The traction grade assigned to this tire
is based on straight-ahead braking traction
tests, and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
415

Run-Flat Tires (CTS-V)
If your vehicle has run-at tires, there is no spare
tire and no tire changing equipment. Run-at
tires can operate effectively with no air pressure
for a limited distance and speed. Your vehicle also
has a Tire Pressure Monitor (TPM) which will
alert you if there is a loss of tire pressure in any of
the tires. These tires perform so well without
any air pressure that a Tire Pressure Monitor
(TPM) is used to alert you when there is a low tire
condition.
{CAUTION:
When the low tire warning light is
displayed on the instrument panel cluster,
your vehicle’s handling capabilities will
be reduced during severe maneuvers.
If you drive too fast, you could lose control
of your vehicle. You or others could be
injured. Do not drive over 55 mph (90 km/h)
CAUTION: (Continued)
CAUTION: (Continued)
when the low tire warning light is
displayed. Drive cautiously and check
your tire pressures as soon as you can.
SeeRun-Flat Tires (CTS-V) on page 400and
Tire Pressure Monitor System on page 405,
for additional information.
{CAUTION:
Special tools and procedures are required
to service a run-at tire. If these special
tools and procedures are not used you or
others could be injured and your vehicle
could be damaged. Always be sure the
proper tools and procedures, as described
in the service manual, are used.
To order a service manual seeService
Publications Ordering Information on page 501.
423

A
Accessories and Modications..................... 332
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................... 89
Additives, Fuel............................................ 336
Add-On Electrical Equipment....................... 446
Air Cleaner/Filter, Engine............................. 351
Air Conditioning........................................... 189
Airbag
Passenger Status Indicator....................... 202
Readiness Light....................................... 201
Airbag Sensing and Diagnostic
Module (SDM).......................................... 494
Airbag System............................................... 70
What Will You See After an
Airbag Inates?...................................... 80
When Should an Airbag Inate?................. 77
Where Are the Airbags?............................. 73
Airbag Systems
Adding Equipment to Your
Airbag-Equipped Vehicle......................... 89
How Does an Airbag Restrain?.................. 79
Passenger Sensing System....................... 82
Servicing Your Airbag-Equipped Vehicle..... 88
What Makes an Airbag Inate?.................. 79
Antenna, Diversity Antenna System............. 284Antenna, XM™ Satellite Radio Antenna
System.................................................... 284
Anti-Lock Brake System.............................. 291
Anti-Lock Brake, System Warning Light....... 206
Appearance Care
Aluminum or Chrome-Plated Wheels........ 441
Care of Safety Belts................................ 439
Chemical Paint Spotting........................... 443
Cleaning Exterior Lamps/Lenses.............. 440
Cleaning the Inside of Your Vehicle.......... 435
Fabric/Carpet........................................... 437
Finish Care.............................................. 440
Finish Damage......................................... 442
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 438
Leather.................................................... 438
Sheet Metal Damage............................... 442
Speaker Covers....................................... 439
Tires........................................................ 442
Underbody Maintenance........................... 443
Vehicle Care/Appearance Materials.......... 444
Washing Your Vehicle.............................. 439
Weatherstrips........................................... 439
Windshield and Wiper Blades................... 441
Wood Panels........................................... 439
Ashtray....................................................... 188
Audio System.............................................. 258
503

Audio Steering Wheel Controls........279, 280
Care of Your CD Player........................... 283
Care of Your CDs.................................... 283
Diversity Antenna System......................... 284
Navigation/Radio System, see
Navigation Manual................................ 279
Radio with CD......................................... 260
Setting the Time...................................... 259
Theft-Deterrent Feature............................ 279
Understanding Radio Reception............... 282
XM™ Satellite Radio Antenna System...... 284
Automatic Transmission
Fluid........................................................ 353
Operation................................................. 122
B
Battery........................................................ 375
Electric Power Management..................... 185
Exterior Lighting Battery Saver................. 183
Run-Down Protection............................... 186
Before Leaving on a Long Trip.................... 312
Brake
Emergencies............................................ 293
Parking.................................................... 128Brakes........................................................ 371
Panic Assist............................................. 298
System Warning Light.............................. 205
Braking....................................................... 290
Braking in Emergencies............................... 293
Break-In, New Vehicle................................. 116
Bulb Replacement....................................... 386
Back-Up and License Plate Lamps.......... 389
Front Turn Signal and Fog Lamps............ 387
Halogen Bulbs......................................... 386
Headlamp Aiming..................................... 383
High Intensity Discharge (HID) Lighting.... 386
Replacement Bulbs.................................. 389
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps................................ 387
Buying New Tires........................................ 411C
Calibration................................................... 137
California Fuel............................................. 335
California Proposition 65 Warning................ 333
Canadian Owners........................................... 3
Capacities and Specications...................... 457
Carbon Monoxide..............104, 134, 316, 328
504

Convenience Net......................................... 161
Coolant
Engine Temperature Gage........................ 208
Engine Temperature Warning Light........... 207
Heater, Engine......................................... 120
Hot Temperature Warning Message.......... 219
Surge Tank Pressure Cap........................ 360
Cooling System........................................... 363
Cruise Control............................................. 176
Cruise Control Light.................................... 214
Cupholder(s)................................................ 159
Customer Assistance Information
Courtesy Transportation........................... 492
Customer Assistance for Text
Telephone (TTY) Users......................... 486
Customer Assistance Offices.................... 486
Customer Satisfaction Procedure.............. 482
GM Mobility Reimbursement Program...... 488
Reporting Safety Defects to
General Motors..................................... 501
Reporting Safety Defects to the
Canadian Government.......................... 500
Reporting Safety Defects to the
United States Government.................... 500Customer Assistance Information (cont.)
Roadside Service..................................... 488
Service Publications Ordering
Information........................................... 501
D
Daytime Running Lamps............................. 181
Defensive Driving........................................ 286
Delayed Locking.......................................... 102
Diversity Antenna System............................ 284
Doing Your Own Service Work.................... 333
Door
Central Door Unlocking System................ 101
Delayed Locking...................................... 102
Locks....................................................... 100
Power Door Locks................................... 101
Programmable Automatic Door Locks....... 102
Rear Door Security Locks........................ 103
Driver
Position, Safety Belt................................... 26
Driver Information Center (DIC)................... 222
DIC Main Menu....................................... 228
DIC Vehicle Personalization..................... 242
506

Driver Information Center (DIC) (cont.)
DIC Warnings and Messages................... 232
Status of Vehicle Systems........................ 223
System Controls....................................... 223
Driving
At Night................................................... 305
City.......................................................... 310
Defensive................................................. 286
Drunken................................................... 287
Freeway................................................... 311
Hill and Mountain Roads.......................... 314
In Rain and on Wet Roads...................... 306
Rocking Your Vehicle to Get it Out.......... 321
Winter...................................................... 316
Dual Climate Control System....................... 189
E
Electrical System
Add-On Equipment................................... 446
Fuses and Circuit Breakers...................... 447
Power Windows and Other
Power Options...................................... 446
Rear Underseat Fuse Block..................... 451Electrical System (cont.)
Underhood Fuse Block............................. 447
Windshield Wiper Fuses........................... 446
Engine
Air Cleaner/Filter...................................... 351
Check and Service Engine Soon Light..... 209
Check Oil Pressure Message................... 220
Coolant.................................................... 356
Coolant Heater......................................... 120
Coolant Temperature Gage...................... 208
Coolant Temperature Warning Light.......... 207
Drive Belt Routing.................................... 476
Engine Compartment Overview................ 342
Exhaust................................................... 134
Oil ........................................................... 346
Oil Life System........................................ 349
Oil Temperature Warning Message ........... 220
Overheated Protection
Operating Mode.................................... 362
Overheating............................................. 360
Speed Limiter.......................................... 201
Starting.................................................... 119
Entry Lighting.............................................. 184
Event Data Recorders (EDR)...................... 494
Extender, Safety Belt..................................... 41
Exterior Lighting Battery Saver.................... 183
507

F
Filter
Engine Air Cleaner................................... 351
Finish Damage............................................ 442
Flashers, Hazard Warning........................... 168
Flash-to-Pass.............................................. 172
Flat Tire...................................................... 422
Flat Tire, Changing...................................... 424
Flat Tire, Storing......................................... 433
Fluid
Automatic Transmission............................ 353
Manual Transmission................................ 354
Power Steering........................................ 368
Windshield Washer.................................. 369
Fog Lamp
Fog .......................................................... 183
Fog Lamp Light........................................... 213
Folding Rear Seat......................................... 18
Fuel............................................................ 334
Additives.................................................. 336
California Fuel.......................................... 335
Filling a Portable Fuel Container.............. 339
Filling Your Tank...................................... 337Fuel (cont.)
Fuels in Foreign Countries....................... 336
Gage....................................................... 214
Gasoline Octane...................................... 334
Gasoline Specications............................ 335
Fuses
Fuses and Circuit Breakers...................... 447
Rear Underseat Fuse Block..................... 451
Underhood Fuse Block............................. 447
Windshield Wiper..................................... 446
G
Gage
Engine Coolant Temperature.................... 208
Fuel......................................................... 214
Speedometer........................................... 200
Tachometer.............................................. 200
Garage Door Opener................................... 147
Gasoline
Octane..................................................... 334
Specications........................................... 335
Glove Box................................................... 159
GM Mobility Reimbursement Program.......... 488
508