2009 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.
Power Steering Fluid
The power steering uid
reservoir is located toward
the rear of the engine
compartment on the
passenger’s side of the
vehicle. SeeEngine
Compartment Overview on
page 5-14for reservoir
location.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A uid loss in this system
could indicate a problem. Have the system inspected
and repaired.
5-34

(h)Change automatic transmission fluid and filter 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, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-28
for what to use. Inspect hoses. Clean radiator,
condenser, pressure cap, and filler 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 fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the fluid level checked. Add fluid if needed.
(m)If driving regularly under dusty conditions, inspect
the filter 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 vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by the vehicle
warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-17.
6-8

Canadian Owners................................................ ii
Capacities and Specications..........................5-101
Carbon Monoxide
Engine Exhaust...........................................2-30
Trunk.........................................................2-12
Winter Driving.............................................4-17
Care of
Safety Belts................................................5-92
CD, MP3 .......................................................3-77
Center Console Storage...................................2-43
Center Seat...................................................1-10
Chains, Tire...................................................5-74
Charging System Light....................................3-30
Check
Engine Lamp..............................................3-36
Checking Things Under the Hood......................5-12
Chemical Paint Spotting...................................5-95
Child Restraints
Infants and Young Children...........................1-37
Lower Anchors and Tethers for Children..........1-45
Older Children.............................................1-34
Securing a Child Restraint in a Rear
Seat Position...........................................1-50
Securing a Child Restraint in the Center
Front Seat Position...................................1-53
Securing a Child Restraint in the Right
Front Seat Position...................................1-54
Systems.....................................................1-41
Where to Put the Restraint...........................1-43Cigarette Lighter.............................................3-19
Circuit Breakers..............................................5-97
Cleaning
Aluminum Wheels........................................5-94
Exterior Lamps/Lenses.................................5-93
Fabric/Carpet..............................................5-90
Finish Care.................................................5-93
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-91
Interior.......................................................5-89
Leather......................................................5-91
Tires
..........................................................5-95
Underbody Maintenance...............................5-95
Washing Your Vehicle...................................5-92
Weatherstrips..............................................5-92
Windshield and Wiper Blades........................5-94
Climate Control System...................................3-20
Outlet Adjustment........................................3-23
Clock, Setting.................................................3-64
Collision Damage Repair..................................7-12
Compact Spare Tire........................................5-88
Compass.......................................................3-47
Content Theft-Deterrent....................................2-16
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-43
Coolant
Engine.......................................................5-28
Engine Temperature Gage............................3-34
Engine Temperature Warning Light.................3-34
3

E
E85 Fuel......................................................... 5-8
EDR .............................................................7-18
Electrical Equipment
Add-On Equipment......................................5-96
Electrical System
Fuses and Circuit Breakers...........................5-97
Headlamp Wiring.........................................5-97
Instrument Panel Fuse Block.........................5-97
Power Windows and Other Power Options......5-97
Underhood Fuse Block.................................5-98
Windshield Wiper Fuses...............................5-97
Electronic Immobilizer
PASS-Key
®III+...........................................2-17
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-18
Electronic Stability Control................................. 4-6
Engine
Air Cleaner/Filter.........................................5-21
Check and Service Engine Soon Lamp...........3-36
Compartment Overview................................5-14
Coolant......................................................5-28
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-34
Coolant Temperature Warning Light................3-34
Cooling System...........................................5-26
Drive Belt Routing.......................................6-14
Exhaust.....................................................2-30
Oil .............................................................5-17Engine (cont.)
Oil Life System...........................................5-20
Overheated Protection Operating Mode...........5-34
Overheating................................................5-31
Starting......................................................2-21
Entry Lighting.................................................3-15
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-33
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-95
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-75
Flat Tire, Changing.........................................5-76
Flat Tire, Storing.............................................5-85
Fluid
Automatic Transmission................................5-24
Power Steering...........................................5-34
Windshield Washer......................................5-35
Fog Lamp
Fog ...........................................................3-14
Fog Lamp Light..............................................3-40
Folding Rear Seat...........................................1-10
5

Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
E85 (85% Ethanol)........................................ 5-8
Economy Driving........................................... 4-2
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage .........................................................3-41
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Fuel Management, Active.................................2-23
Fuses
Fuses and Circuit Breakers...........................5-97
Instrument Panel Fuse Block.........................5-97
Underhood Fuse Block.................................5-98
Windshield Wiper.........................................5-97
G
Gage
Speedometer..............................................3-26
Tachometer.................................................3-26
Gages
Engine Coolant Temperature.........................3-34
Fuel..........................................................3-41
Garage Door Opener.......................................2-36Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-43
GM Mobility Reimbursement Program.................. 7-7
H
Halogen Bulbs................................................5-45
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-2
Headlamp
Aiming .......................................................5-45
Headlamp Wiring............................................5-97
Headlamps
Bulb Replacement.......................................5-45
Daytime Running Lamps/Automatic Headlamp
System...................................................3-14
Exterior Lamps............................................3-12
Flash-to-Pass............................................... 3-8
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-46
High/Low Beam Changer................................ 3-8
Heated Seats................................................... 1-6
Heater...........................................................3-20
Engine Coolant...........................................2-22
Highbeam On Light.........................................3-40
6

Highway Hypnosis...........................................4-15
Hill and Mountain Roads..................................4-16
Hood
Checking Things Under................................5-12
Release.....................................................5-13
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-18
I
Ignition Positions.............................................2-20
Infants and Young Children, Restraints...............1-37
Ination - Tire Pressure...................................5-60
Instrument Panel
Brightness..................................................3-15
Cluster.......................................................3-25
Overview..................................................... 3-4
Introduction...................................................... 6-2
J
Jump Starting.................................................5-40
K
Keyless Entry, Remote Operation........................ 2-5
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-54
Lamp
Malfunction Indicator....................................3-36
Lamps
Courtesy....................................................3-15
Dome ........................................................3-15
License Plate..............................................5-51
Mirror Reading............................................3-17
Reading.....................................................3-17
Lap Belt........................................................1-32
Lap-Shoulder Belt...........................................1-27
LATCH System for Child Restraints...................1-45
Lighting
Delayed Entry.............................................3-16
Delayed Exit...............................................3-16
Entry.........................................................3-15
Parade Dimming..........................................3-16
Lights
Airbag Readiness........................................3-28
Antilock Brake System (ABS) Warning............3-31
Brake System Warning.................................3-30
Charging System.........................................3-30
Cruise Control.............................................3-40
Electronic StabiliTrak Control Indicator............3-33
Engine Coolant Temperature Warning.............3-34
Exterior Lamps............................................3-12
Flash-to-Pass............................................... 3-8
7