2010 CHEVROLET IMPALA coolant temperature

Overheated Engine Protection
Operating ModeThis 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 firing groups of
cylinders helps prevent engine damage. In this mode,
you will notice a significant 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 6-15.
Power Steering Fluid
The power steering fluid
reservoir is located toward
the rear of the engine
compartment on the
passenger’s side of the
vehicle. SeeEngine
Compartment Overview on
page 6-14for reservoir
location.
When to Check Power Steering FluidIt is not necessary to regularly check power steering fluid
unless you suspect there is a leak in the system or
you hear an unusual noise. A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
6-32

Charging System Light....................................4-26
Check
Engine Lamp..............................................4-31
Checking Things Under the Hood......................6-12
Chemical Paint Spotting . . .................................6-94
Child Restraints
Infants and Young Children...........................2-35
Lower Anchors and Tethers for Children..........2-43
Older Children.............................................2-32
Securing a Child Restraint in a Rear Seat
Position..................................................2-49
Securing a Child Restraint in the Center
Front Seat Position . . . . . ..............................2-52
Securing a Child Restraint in the Right
Front Seat Position . . . . . ..............................2-52
Systems.....................................................2-39
Where to Put the Restraint...........................2-42
Cigarette Lighter.............................................4-16
Circuit Breakers..............................................6-96
Cleaning
Aluminum Wheels........................................6-93
Exterior Lamps/Lenses . ................................6-91
Fabric/Carpet..............................................6-88
Finish Care . . ...............................................6-92
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................6-90
Interior . . .....................................................6-87Cleaning (cont.)
Leather......................................................6-89
Tires..........................................................6-93
Underbody Maintenance . . . . . ..........................6-94
Washing Your Vehicle . . . . ...............................6-91
Weatherstrips..............................................6-90
Windshield and Wiper Blades........................6-92
Climate Control System . . .................................4-16
Outlet Adjustment........................................4-20
Climate Controls.............................................1-14
Clock, Setting.................................................4-58
Collision Damage Repair..................................8-13
Compact Spare Tire........................................6-86
Compass.......................................................4-42
Content Theft-Deterrent....................................3-17
Control of a Vehicle.......................................... 5-3
Convenience Net............................................3-42
Coolant
Engine.......................................................6-25
Engine Temperature Gage............................4-30
Engine Temperature Warning Light.................4-30
Cooling System..............................................6-24
Courtesy Lamps.............................................4-11
Courtesy Transportation Program . . ....................8-11
Cruise Control.................................................. 4-6
Light..........................................................4-35
Cupholders....................................................3-42
3

Electrical System (cont.)
Power Windows and Other Power Options . . . . . . 6-96
Underhood Fuse Block . ................................6-97
Windshield Wiper Fuses...............................6-96
Electronic Immobilizer
PASS-Key
®
III+...........................................3-18
Electronic Immobilizer Operation
PASS-Key
®
III+...........................................3-18
Electronic Stability Control................................. 5-6
Engine
Air Cleaner/Filter.........................................6-19
Check and Service Engine Soon Lamp...........4-31
Compartment Overview................................6-14
Coolant . . ....................................................6-25
Coolant Heater............................................3-23
Coolant Temperature Gage...........................4-30
Coolant Temperature Warning Light................4-30
Cooling System...........................................6-24
Drive Belt Routing.......................................7-12
Exhaust.....................................................3-31
Oil .............................................................6-15
Overheated Protection Operating Mode...........6-32
Overheating................................................6-29
Starting . . ....................................................3-21
Engine Oil
Life System................................................6-18
Entry Lighting . . ...............................................4-12Event Data Recorders.....................................8-19
Extender, Safety Belt.......................................2-31
Exterior Lamps................................................. 4-9
F
Filter
Engine Air Cleaner......................................6-19
Finish Damage...............................................6-94
Flashers, Hazard Warning.................................. 4-3
Flash-to-Pass................................................... 4-5
Flat Tire........................................................6-74
Flat Tire, Changing.........................................6-75
Flat Tire, Storing.............................................6-83
Fluid
Automatic Transmission................................6-22
Power Steering...........................................6-32
Windshield Washer......................................6-33
Fog Lamps
Bulb Replacement.......................................4-11
Light..........................................................4-35
Folding Rear Seat...........................................2-10
Fuel............................................................... 6-5
Additives...................................................... 6-7
California Fuel.............................................. 6-6
E85 (85% Ethanol)........................................ 6-8
5

Fuel (cont.)
Filling a Portable Fuel Container....................6-12
Filling the Tank...........................................6-10
Fuels in Foreign Countries.............................. 6-9
Gage . . . ......................................................4-36
Gasoline Octane........................................... 6-6
Gasoline Specifications.................................. 6-6
Fuel Economy
Driving for Better.........................................1-21
Fuses
Fuses and Circuit Breakers...........................6-96
Instrument Panel Fuse Block.........................6-96
Underhood Fuse Block.................................6-97
Windshield Wiper.........................................6-96
G
Gages
Engine Coolant Temperature.........................4-30
Fuel . . . . . . . . . .................................................4-36
Speedometer . . ............................................4-23
Tachometer . . . . . . ...........................................4-23
Garage Door Opener.......................................3-35
Gasoline
Octane........................................................ 6-6
Specifications ............................................... 6-6
Glove Box .....................................................3-42
GM Mobility Reimbursement Program.................. 8-7
H
Halogen Bulbs................................................6-43
Hazard Warning Flashers................................... 4-3
Head Restraints............................................... 2-2
Headlamp Wiring............................................6-96
Headlamps
Aiming.......................................................6-43
Bulb Replacement.......................................6-43
Daytime Running Lamps/Automatic
Headlamp System....................................4-10
Exterior Lamps............................................. 4-9
Flash-to-Pass............................................... 4-5
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................6-44
High/Low Beam Changer................................ 4-5
Heated Seats................................................... 2-6
Heater . ..........................................................4-16
Engine Coolant...........................................3-23
Highbeam On Light.........................................4-36
Highway Hypnosis...........................................5-15
Hill and Mountain Roads..................................5-16
Hood
Checking Things Under................................6-12
Release.....................................................6-13
Horn............................................................... 4-3
How to Wear Safety Belts Properly . . .................2-17
6

I
Ignition Positions.............................................3-20
Infants and Young Children, Restraints...............2-35
Inflation - Tire Pressure . . .................................6-59
Instrument Panel
Brightness..................................................4-11
Cluster . . .....................................................4-22
Introduction...................................................... 7-2
J
Jump Starting . . ...............................................6-39
K
Keyless Entry
Remote (RKE) System . .................................. 3-4
Keyless Entry System....................................... 3-4
Keys . . . . ........................................................... 3-3
L
Labeling, Tire Sidewall.....................................6-52
Lamps
Courtesy . . . . ................................................4-11
Dome . . . . . ...................................................4-11
License Plate..............................................6-49Lamps (cont.)
Malfunction Indicator....................................4-31
Map ..........................................................4-13
Reading.....................................................4-13
Lap Belt........................................................2-30
Lap-Shoulder Belt...........................................2-25
LATCH System for Child Restraints . . .................2-43
Lighting
Delayed Entry.............................................4-12
Delayed Exit...............................................4-13
Entry.........................................................4-12
Parade Dimming..........................................4-13
Lights
Airbag Readiness........................................4-24
Antilock Brake System (ABS) Warning . . . . . . . . . . . . 4-28
Brake System Warning . . . . .............................4-27
Charging System.........................................4-26
Cruise Control.............................................4-35
Electronic StabiliTrak Control Indicator . . . . . . . . . . . . 4-29
Engine Coolant Temperature Warning.............4-30
Exterior Lamps . . ........................................... 4-9
Flash-to-Pass............................................... 4-5
Fog Lamps.................................................4-35
Highbeam On.............................................4-36
High/Low Beam Changer................................ 4-5
Oil Pressure...............................................4-34
Passenger Airbag Status Indicator . . . ...............4-25
Safety Belt Reminders..................................4-23
7