2006 CHEVROLET IMPALA coolant temperature

Overheated Engine Protection
Operating Mode
This emergency operating mode allows your vehicle to
be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates ring groups of
cylinders helps prevent engine damage. In this mode,
you will notice a signicant loss in power and engine
performance. The coolant temperature gage will indicate
an overheat condition exists. Driving extended miles
(km) and/or towing a trailer in the overheat protection
mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. SeeEngine Oil
on page 5-17.
Cooling System
When you decide it is safe to lift the hood, here is what
you will see:
A. Coolant Recovery Tank
B. Pressure Cap
C. Electric Engine Cooling Fans3.5L V6 Engine shown, 3.9L V6 Engine similar
5-31

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
A WASHER FLUID LOW ADD FLUID message will be
displayed on the Driver Information Center (DIC)
when you need to add windshield washer uid to your
vehicle. SeeDIC Warnings and Messages on page 3-45
for more information.
Open the cap with the
washer symbol on it.
Add washer uid until
the tank is full.
SeeEngine Compartment Overview on page 5-12for
more information on 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 your washer uid tank only three-quarters
full when it is very cold. This allows for
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 your washer
system and paint.
5-39

(h)Change automatic transaxle 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.
(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 5-26 for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.
(j)Check throttle 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.(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.
(m)If you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(n)Visually inspect belt for fraying, excessive cracks,
or obvious damage. Replace belt if necessary.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your GM Goodwrench
®dealer can assist
you with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
6-8

Charging System Light....................................3-30
Check
Engine Light...............................................3-34
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-90
Child Restraints
Child Restraint Systems...............................1-38
Infants and Young Children...........................1-34
Lower Anchors and Tethers for Children..........1-43
Older Children.............................................1-32
Securing a Child Restraint in a Rear Seat
Position..................................................1-49
Securing a Child Restraint in the Center
Front Seat Position...................................1-51
Securing a Child Restraint in the Right
Front Seat Position...................................1-52
Where to Put the Restraint...........................1-42
Cigarette Lighter.............................................3-18
Cleaning
Aluminum Wheels........................................5-89
Exterior Lamps/Lenses.................................5-87
Fabric/Carpet..............................................5-85
Finish Care.................................................5-88
Inside of Your Vehicle..................................5-84
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-86Cleaning (cont.)
Leather......................................................5-86
Tires..........................................................5-89
Underbody Maintenance...............................5-90
Washing Your Vehicle...................................5-87
Weatherstrips..............................................5-87
Windshield and Wiper Blades........................5-88
Climate Control System...................................3-19
Air Filter, Passenger Compartment.................3-23
Outlet Adjustment........................................3-22
Collision Damage Repair..................................7-10
Comfort Guides, Rear Safety Belt.....................1-29
Compact Spare Tire........................................5-83
Compass.......................................................3-44
Content Theft-Deterrent....................................2-17
Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-43
Coolant
Engine Temperature Gage............................3-33
Engine Temperature Warning Light.................3-32
Heater, Engine............................................2-24
Cooling System..............................................5-31
Courtesy Lamps.............................................3-15
Cruise Control................................................3-10
Cruise Control Light........................................3-38
Cupholder(s)..................................................2-42
3

E
Eight-Way Power Seats..................................... 1-3
Electrical System
Add-On Equipment......................................5-93
Fuses and Circuit Breakers...........................5-94
Headlamp Wiring.........................................5-93
Instrument Panel Fuse Block.........................5-94
Power Windows and Other Power Options......5-94
Underhood Fuse Block.................................5-96
Windshield Wiper Fuses...............................5-93
Engine
Air Cleaner/Filter.........................................5-22
Battery.......................................................5-43
Check and Service Engine Soon Light............3-34
Coolant......................................................5-26
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-33
Coolant Temperature Warning Light................3-32
Engine Compartment Overview......................5-12
Exhaust.....................................................2-32
Oil .............................................................5-17
Oil Life System...........................................5-20
Overheated Protection Operating Mode...........5-31
Overheating................................................5-29
Starting......................................................2-22Entry Lighting.................................................3-16
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-31
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-22
Finish Damage...............................................5-90
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-72
Flat Tire, Changing.........................................5-73
Flat Tire, Storing.............................................5-81
Fluid
Automatic Transaxle.....................................5-23
Power Steering...........................................5-38
Windshield Washer......................................5-39
Fog Lamp Light..............................................3-37
Fog Lamps ....................................................3-15
Folding Rear Seat............................................ 1-9
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
5

Fuel (cont.)
E85 (85% Ethanol)........................................ 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-38
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Fuses
Fuses and Circuit Breakers...........................5-94
Instrument Panel Fuse Block.........................5-94
Underhood Fuse Block.................................5-96
Windshield Wiper.........................................5-93
G
Gage
Engine Coolant Temperature.........................3-33
Fuel..........................................................3-38
Speedometer..............................................3-26
Tachometer.................................................3-26
Garage Door Opener.......................................2-38
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-42
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamp
Aiming .......................................................5-47
Headlamp Wiring............................................5-93
Headlamps
Bulb Replacement.......................................5-48
Daytime Running Lamps/Automatic
Headlamp System....................................3-14
Delayed.....................................................3-14
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-48
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-48
High/Low Beam Changer................................ 3-8
Heated Seats................................................... 1-4
Heater...........................................................3-19
Highbeam On Light.........................................3-38
Highway Hypnosis...........................................4-21
Hill and Mountain Roads..................................4-22
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-16
6

I
Ignition Positions.............................................2-21
Infants and Young Children, Restraints...............1-34
Ination - Tire Pressure...................................5-60
Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-15
Cluster.......................................................3-25
J
Jump Starting.................................................5-44
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Labeling, Tire Sidewall.....................................5-55
Lamps
Battery Run-Down Protection.........................3-17
Courtesy....................................................3-15Lamps (cont.)
Dome ........................................................3-15
Exterior......................................................3-12
Fog ...........................................................3-15
Reading.....................................................3-17
LATCH System
Child Restraints...........................................1-43
Light
Airbag Readiness........................................3-27
Anti-Lock Brake System Warning...................3-31
Brake System Warning.................................3-30
Charging System.........................................3-30
Cruise Control.............................................3-38
Engine Coolant Temperature Warning.............3-32
Fog Lamp ..................................................3-37
Highbeam On.............................................3-38
Malfunction Indicator....................................3-34
Oil Pressure...............................................3-36
Passenger Airbag Status Indicator..................3-28
Passenger Safety Belt Reminder....................3-26
Safety Belt Reminder...................................3-26
Security.....................................................3-37
TCS Warning Light......................................3-32
Tire Pressure..............................................3-33
Traction Control System (TCS) Warning..........3-32
Lighting
Delayed Entry.............................................3-16
Delayed Exit...............................................3-16
7