2007 CHEVROLET COBALT heater

CAUTION: (Continued)
Do not run the engine if there is a leak.
If you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.
If your vehicle is equipped with the 2.2L or
2.4L L4 engine and there seems to be no leak,
with the engine on, check to see if the electric
engine cooling fan is running. If the engine is
overheating, the fan should be running. If it is not,
your vehicle needs service.
If your vehicle is equipped with the
2.0L L4 Supercharged engine and there
seems to be no leak, with the engine on, check to
see if the electric engine cooling fans are running.
If the engine is overheating, the fans should be
running. If they are not, your vehicle needs service.
Notice:Engine damage from running your
engine without coolant is not covered by
your warranty.Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner,
at 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.
How to Add Coolant to the Coolant
Surge Tank
Notice:This vehicle has a specic coolant ll
procedure. Failure to follow this procedure
could cause your engine to overheat and
be severely damaged.
If you have not found a problem yet, check to
see if coolant is visible in the coolant surge tank.
If coolant is visible but the coolant level is not at the
COLD FILL line, add a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant at the
coolant surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap,
is cool before you do it. SeeEngine Coolant on
page 302for more information.
313

2.2L and 2.4L L4 Engines
If no coolant is visible in the coolant surge tank,
add coolant as follows:
{CAUTION:
Steam and scalding liquids from a hot
cooling system can blow out and burn
you badly. They are under pressure, and if
you turn the coolant surge tank pressure
cap — even a little — they can come out at
high speed. Never turn the cap when the
cooling system, including the coolant
surge tank pressure cap, is hot. Wait for
the cooling system and coolant surge
tank pressure cap to cool if you ever
have to turn the pressure cap.
{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:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant
and the proper coolant mixture.
314

Competitive Driving, Racing or Other........... 242
Content Theft-Deterrent............................... 107
Control of a Vehicle..................................... 230
Convenience Net......................................... 136
Coolant
Engine Temperature Warning Light........... 174
Heater, Engine......................................... 117
Surge Tank Pressure Cap........................ 309
Cooling System........................................... 311
Cruise Control............................................. 149
Cupholder(s)................................................ 136
Customer Assistance Information
Courtesy Transportation........................... 423
Customer Assistance for
Text Telephone (TTY) Users................. 418
Customer Assistance Offices.................... 418
Customer Satisfaction Procedure.............. 414
GM Mobility Reimbursement Program...... 419
Reporting Safety Defects to
General Motors..................................... 430
Reporting Safety Defects to the
Canadian Government.......................... 429
Reporting Safety Defects to the
United States Government.................... 429
Roadside Assistance Program.................. 420
Service Publications
Ordering Information.............................. 430D
Daytime Running Lamps............................. 153
Defensive Driving........................................ 226
Delayed Locking............................................ 99
Differential, Limited-Slip............................... 235
Disc, MP3................................................... 212
Doing Your Own Service Work.................... 281
Dome Lamp................................................ 155
Door
Automatic Door Lock................................ 100
Delayed Locking........................................ 99
Locks......................................................... 98
Power Door Locks..................................... 99
Programmable Automatic Door Unlock..... 100
Rear Door Security Locks........................ 100
Driver
Position, Safety Belt................................... 24
Seat Height Adjuster.................................. 10
Driver Information Center (DIC)................... 181
DIC Operation and Displays..................... 181
DIC Vehicle Personalization..................... 186
DIC Warnings and Messages................... 184
Driver’s Storage Compartment..................... 136
438

Driving
At Night................................................... 243
City.......................................................... 248
Defensive................................................. 226
Drunken................................................... 227
Freeway................................................... 249
Hill and Mountain Roads.......................... 252
In Rain and on Wet Roads...................... 244
Rocking Your Vehicle to Get it Out.......... 259
Winter...................................................... 254
E
Easy Entry Seat............................................ 15
EDR ............................................................ 432
Electrical System
Add-On Equipment................................... 383
Engine Compartment Fuse Block............. 386
Floor Console Fuse Block........................ 384
Fuses and Circuit Breakers...................... 384
Headlamp Wiring..................................... 383
Power Windows and Other
Power Options...................................... 383
Windshield Wiper Fuses........................... 383Engine
Air Cleaner/Filter...................................... 300
Check and Service Engine Soon Light..... 174
Coolant.................................................... 302
Coolant Heater......................................... 117
Coolant Temperature Warning Light.......... 174
Drive Belt Routing.................................... 409
Engine Compartment Overview................ 290
Exhaust................................................... 128
Oil ........................................................... 293
Oil Life System........................................ 298
Overheating............................................. 309
Running While Parked............................. 129
Starting.................................................... 115
Enhanced Traction System (ETS)................ 234
Warning Light........................................... 173
Entry/Exit Lighting....................................... 155
Event Data Recorders................................. 433
Extender, Safety Belt..................................... 39
439

H
Hazard Warning Flashers............................ 144
Head Restraints............................................ 14
Headlamp
Aiming..................................................... 328
Headlamp Wiring......................................... 383
Headlamps.................................................. 152
Bulb Replacement.................................... 331
Daytime Running Lamps.......................... 153
Flash-to-Pass........................................... 146
Halogen Bulbs......................................... 331
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps........... 331
High/Low Beam Changer......................... 146
On Reminder........................................... 153
Wiper Activated........................................ 153
Heated Seats................................................ 11
Heater......................................................... 158
Height Adjuster, Driver Seat.......................... 10
Highbeam On Light..................................... 179
High-Speed Operation, Tires........................ 349
Highway Hypnosis....................................... 251
Hill and Mountain Roads............................. 252
Hood
Checking Things Under............................ 288
Release................................................... 289Horn............................................................ 144
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 23
Hydraulic Clutch.......................................... 302
I
Ignition Positions......................................... 112
Infants and Young Children, Restraints.......... 43
Ination - Tire Pressure............................... 347
Instrument Panel
Overview.................................................. 142
Instrument Panel (I/P)
Brightness................................................ 154
Cluster..................................................... 165
J
Jump Starting.............................................. 322
K
Keyless Entry System................................... 91
Keys............................................................. 89
441