2007 CHEVROLET COBALT coolant temperature

Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank. SeeEngine
Compartment Overview on page 290for more
information on location.
Engine Overheating
You will nd an engine coolant temperature
warning light on your vehicle’s instrument panel.
SeeEngine Coolant Temperature Warning
Light on page 174for more information.
If Steam Is Coming From Your Engine
{CAUTION:
Steam from an overheated engine can
burn you badly, even if you just open the
hood. Stay away from the engine if you
see or hear steam coming from it. Just
turn it off and get everyone away from
the vehicle until it cools down. Wait until
there is no sign of steam or coolant
before you open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch re.
You or others could be badly burned.
Stop your engine if it overheats, and get
out of the vehicle until the engine is cool.
Notice:If your engine catches re because
you keep driving with no coolant, your vehicle
can be badly damaged. The costly repairs
would not be covered by your warranty.
309

If No Steam Is Coming From
Your Engine
An engine coolant temperature warning can
indicate a serious problem. SeeEngine Coolant
Temperature Warning Light on page 174.
If you get an engine coolant temperature warning,
but see or hear no steam, the problem may not
be too serious. Sometimes the engine can
get a little too hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer.If you get the engine coolant temperature warning
with no sign of steam, try this for a minute or so:
1. If you have an air conditioner and it is on,
turn it off.
2. In heavy traffic, let the engine idle in
NEUTRAL (N) for automatic transaxle
or NEUTRAL for manual transaxle, while
stopped. If it is safe to do so, pull off the road,
shift to PARK (P) or NEUTRAL (N) and let
the engine idle.
3. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
If you no longer have the overheat warning,
you can drive. Just to be safe, drive slower for
about 10 minutes. If the warning does not
come back on, you can drive normally.
310

Windshield Washer Fluid
What to Use
When you need windshield washer uid, be sure
to read the manufacturer’s instructions before
use. If you will be operating your vehicle in an area
where the temperature may fall below freezing,
use a uid that has sufficient protection against
freezing.
Adding Washer Fluid
Open the cap with the
washer symbol on it.
Add washer uid
until the tank is full. See
Engine Compartment
Overview on page 290
for reservoir location.Notice:
When using concentrated washer uid,
follow the manufacturer’s instructions
for adding water.
Do not mix water with ready-to-use washer
uid. Water can cause the solution to freeze
and damage your washer uid tank and
other parts of the washer system. Also,
water does not clean as well as washer
uid.
Fill the washer uid tank only three-quarters
full when it is very cold. This allows for uid
expansion if freezing occurs, which could
damage the tank if it is completely full.
Do not use engine coolant (antifreeze) in
your windshield washer. It can damage
the vehicle’s windshield washer system
and paint.
317

(g)Check system for interference or binding and
for damaged or missing parts. Replace parts
as needed. Replace any components that have
high effort or excessive wear. Do not lubricate
accelerator or cruise control cables.
(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 found in taxi, police, or delivery
service.
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/retailer perform this service. See
Engine Coolant on page 302 for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap, and ller neck. Pressure test the cooling
system and pressure cap.(j)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.
(k)If you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(l)If you drive regularly under dusty conditions,
the lter may require replacement more often.
(m)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
(n)Drain, ush, and rell intercooler system. This
service can be complex; you should have your
dealer/retailer perform this service. See Engine
Coolant on page 302for what to use. Inspect
hoses. Clean pressure cap and ller neck.
Pressure test the system and pressure cap.
401

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

L
Labeling, Tire Sidewall................................. 340
Lamps
Dome....................................................... 155
Mirror Reading......................................... 155
LATCH System
Child Restraints......................................... 53
License Plate Lamps................................... 336
Light
Airbag Readiness..................................... 167
Anti-Lock Brake System Warning............. 172
Brake System Warning............................. 171
Charging System..................................... 170
Engine Coolant Temperature Warning....... 174
Enhanced Traction System (ETS)
Warning Light....................................... 173
Fog Lamp................................................ 179
Highbeam On.......................................... 179
Malfunction Indicator................................ 174
Oil Pressure............................................. 178
Passenger Airbag Status Indicator............ 168
Passenger Safety Belt Reminder.............. 167
Safety Belt Reminder............................... 166Light (cont.)
Security................................................... 179
Up-Shift................................................... 171
Lighting
Entry/Exit................................................. 155
Lights.......................................................... 152
Flash-to-Pass........................................... 146
High/Low Beam Changer ......................... 146
On Reminder........................................... 153
Limited-Slip Differential................................ 235
Loading Your Vehicle................................... 259
Lockout Protection....................................... 101
Locks
Automatic Door Lock................................ 100
Delayed Locking........................................ 99
Door.......................................................... 98
Lockout Protection................................... 101
Power Door............................................... 99
Programmable Automatic Door Unlock..... 100
Rear Door Security Locks........................ 100
Loss of Control........................................... 241
Lumbar
Manual Controls......................................... 10
442