2007 CADILLAC CTS V coolant temperature

Check Tire Pressure
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message indicates that one or
more of the vehicle’s tires are low. SeeStatus of
Vehicle Systems on page 223for information
on checking your vehicle’s tire pressures. Also,
seeTire Pressure Monitor System on page 405
andInation - Tire Pressure on page 402for
more information.
Check Washer Fluid
When this message appears on the display, it
means that your vehicle is low on windshield
washer uid. You should rell the windshield
washer uid reservoir as soon as possible. See
Windshield Washer Fluid on page 369for
more information.
Competitive Driving (CTS-V)
When competitive driving mode is turned on with
the TC (traction control) button, this message
will be displayed on the DIC. The TC light will be
on when the competitive driving mode is on.
The Traction Control System (TCS) will not
operate while in competitive driving mode. You
should adjust your driving accordingly. Seethe CTS-V portion ofTraction Control System
(TCS) (CTS) on page 293orTraction Control
System (TCS) (CTS-V) on page 295for more
information.
Driver Door Ajar
When this message appears on the display, it
means that the driver’s door was not closed
completely. You should make sure that the driver’s
door is closed completely.
Engine Coolant Hot – AC
(Air Conditioning) Off
This message displays when the engine coolant
becomes hotter than the normal operating
temperature. To avoid added strain on a hot
engine, the air conditioning compressor is
automatically turned off. When the coolant
temperature returns to normal, the air conditioning
compressor will turn back on. You can continue
to drive your vehicle.
If this message continues to appear, have the
system repaired by your dealer as soon as
possible to avoid damage to the engine or
transmission.
236

Engine Coolant Hot – Idle Engine
Notice:If you drive your vehicle while the
engine is overheating, severe engine damage
may occur. If an overheat warning appears
on the instrument panel cluster and/or
DIC, stop the vehicle as soon as possible. Do
not increase the engine speed above normal
idling speed. SeeEngine Overheating on
page 360for more information.
This message will appear when the engine coolant
temperature is too hot. Stop and allow the
vehicle to idle until it cools down.
Engine Power Reduced
This message informs you that the vehicle is
reducing engine power to try to protect the engine
or transmission from damage due to extreme
operating conditions. Reduced engine power can
affect the vehicle’s ability to accelerate. If this
message is on, but there is no reduction in
performance, proceed to your destination. The
performance may be reduced the next time
the vehicle is driven. The vehicle may be driven at
a reduced speed while this message is on, but
acceleration and speed may be reduced.Anytime this message stays on, the vehicle should
be taken to your dealer for service as soon as
possible.
Fuel Level Low
When this message appears on the display, it
means that your vehicle is low on fuel. You should
rell the fuel tank as soon as possible. A single
chime will sound when this message is displayed.
Headlamps Suggested
This message will appear when the amount of
available light outside the vehicle is low and
the exterior lamp control is off. This message
informs the driver that turning on the exterior lamps
is recommended even though the daytime
running lamps (DRL) are still illuminated and it has
become dark enough outside to require the
headlamps and/or other exterior lamps.
This message will also appear when the
windshield wipers have been on for more than
six seconds and the exterior lamp control is off or
in the parking lamp position.
237

A 50/50 mixture of clean, drinkable water and
DEX-COOL®coolant will:
Give freezing protection down to
−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Allow the warning lights and gages to work as
they should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core, or
radiator corrosion. In addition, the engine
coolant may require changing sooner, at the
rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL®coolant which will
not damage aluminum parts. If you use this coolant
mixture, you do not need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
Notice:If you use an improper coolant
mixture, your engine could overheat and be
badly damaged. The repair cost would not be
covered by your warranty. Too much water
in the mixture can freeze and crack the engine,
radiator, heater core, and other parts.
357

(h)Change automatic transmission uid and lter
if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as high performance operation.
If you do not use your vehicle under any of these
conditions, the uid and lter do not require
changing.
(i)Drain, ush, and rell cooling system.
This service can be complex; you should have
your dealer perform this service. See Engine
Coolant on page 356 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)If using DOT-4 brake uid only: Drain, ush,
and rell brake hydraulic system at a regular
maintenance service (IorII) every two years.
This service can be complex; you should have
your dealer perform this service. See Brakes
on page 371.(k)A uid loss in any vehicle system could
indicate a problem. Have the system inspected
and repaired and the uid level checked. Add uid
if needed.
(l)Change uid if the vehicle is used for high
performance operation.
(m)Change uid whenever the vehicle has been
driven for 3,000 miles (5 000 km) with the
transmission temperature at 290°F (143°C) or
higher without using an auxiliary uid cooler.
See Message Center (CTS-V) on page 215 and
Transmission Fluid Hot Message on page 219.
(n)If you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(p)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
468

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

H
Hazard Warning Flashers............................ 168
Head Restraints............................................ 17
Headlamp
Aiming..................................................... 383
Headlamps.................................................. 180
Bulb Replacement.................................... 386
Daytime Running Lamps.......................... 181
Flash-to-Pass........................................... 172
Front Turn Signal and Fog Lamps............ 387
Halogen Bulbs......................................... 386
High Intensity Discharge (HID) Lighting.... 386
High/Low Beam Changer......................... 172
On Reminder........................................... 181
Washer.................................................... 175
Wiper Activated........................................ 180
Heated Seats................................................ 10
Heater......................................................... 189
Highbeam On Light..................................... 214
High-Speed Operation, Tires........................ 404
Highway Hypnosis....................................... 313
Hill and Mountain Roads............................. 314Hood
Checking Things Under............................ 340
Release................................................... 341
Horn............................................................ 168
Hot Coolant Temperature Warning
Message.................................................. 219
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 25
Hydraulic Clutch.......................................... 356
I
Ignition Positions......................................... 117
Immobilizer.................................................. 113
Immobilizer Operation.................................. 114
Infants and Young Children, Restraints.......... 45
Ination - Tire Pressure............................... 402
Instrument Panel
Overview.................................................. 166
Instrument Panel (I/P)
Brightness................................................ 184
Cluster..................................................... 198
509