2009 CHEVROLET IMPALA engine overheat

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

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

Mirrors
Automatic Dimming Rearview........................2-32
Manual Rearview Mirror................................2-32
Outside Convex Mirror.................................2-33
Outside Heated Mirrors................................2-33
Outside Power Mirrors..................................2-32
MP3 .............................................................3-77
N
Navigation System, Privacy..............................7-19
Net
Convenience...............................................2-43
New Vehicle Break-In......................................2-19
O
Odometer......................................................3-26
Off-Road
Recovery....................................................4-11
Oil
Engine.......................................................5-17
Engine Oil Life System.................................5-20
Pressure Light.............................................3-39
Older Children, Restraints................................1-34
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-19
OnStar
®System, see OnStar®Manual...............2-33
Operation, Universal Home Remote System........2-37Outlet Adjustment............................................3-23
Outlets
Accessory Power.........................................3-18
Outside
Convex Mirror.............................................2-33
Heated Mirrors............................................2-33
Power Mirrors.............................................2-32
Overheated Engine Protection
Operating Mode..........................................5-34
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-95
Parade Dimming.............................................3-16
Park
Shifting Into................................................2-27
Shifting Out of............................................2-29
Parking
Over Things That Burn.................................2-30
Parking Brake................................................2-26
Passenger Airbag Status Indicator.....................3-29
Passenger Compartment Air Filter.....................3-23
Passenger Sensing System..............................1-65
Passing.........................................................4-11
PASS-Key
®III+ Electronic Immobilizer...............2-17
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-18
9