engine overheat CHEVROLET IMPALA 2003 8.G Owner's Manual

Notice:In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
The coolant recovery tank is located in the rear of the
engine compartment on the passenger's side of the
vehicle. See
Engine Compartment Overview on
page 5-12
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Don't spill coolant on a hot engine.
When the coolant in the coolant recovery tank is at the
COLD mark, start your vehicle.
If the overheat warning continues, there's one more
thing you can try. You can add the proper coolant
mixture directly to the radiator, but be sure the cooling
system is cool before you do it.
5-36

How to Add Coolant to the Radiator
Notice:Your engine has a speci®c radiator
®ll procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.The radiator pressure cap is located in the front of the
engine compartment near the diagonal cross brace
on the passenger's side of the vehicle. SeeEngine
Compartment Overview on page 5-12
1. Turn the pressure cap slowly counterclockwise until
it ®rst stops. (Don't press down while turning the
pressure cap.)
If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left.
5-38

Door (cont.)
Driver Information Center (DIC).........................3-49
Driver............................................................1-15
Position, Safety Belt.....................................1-15
Driver's Side Instrument Panel Fuse Block.........5-96
Driving On Grades..........................................4-39
Driving on Snow or Ice....................................4-26
Driving Through Deep Standing Water...............4-19
Driving Through Flowing Water.........................4-19
Driving with a Trailer.......................................4-38
Driving..........................................................4-16
At Night.....................................................4-16
City...........................................................4-20
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-21
Hill and Mountain Roads..............................4-23
In Rain and on Wet Roads...........................4-17
Winter........................................................4-25
Dual Climate Control System............................3-22
E
Electrical System............................................5-94
Add-On Equipment......................................5-94
Fuses and Circuit Breakers...........................5-95
Headlamp Wiring.........................................5-94
Power Windows and Other Power Options......5-95
Windshield Wiper Fuses...............................5-94Electrical System (cont.)
Emergency Trunk Release Handle.....................2-12
Emissions Inspection and
Maintenance Programs.................................3-39
Engine Coolant Level Check.............................6-10
Engine Cooling When Trailer Towing..................4-40
Engine Oil Additives........................................5-20
Engine Oil Level Check...................................6-10
Engine..........................................................5-22
Air Cleaner/Filter.........................................5-22
Battery.......................................................5-48
Change Oil Message...................................3-44
Check and Service Engine Soon Light............3-37
Compartment Overview................................5-12
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-36
Coolant......................................................5-27
Cooling System Inspection............................6-15
Exhaust.....................................................2-31
Low Oil Level Message................................3-43
Oil .............................................................5-16
Overheating................................................5-30
Starting......................................................2-19
Entry Lighting.................................................3-17
Erasing HomeLinkžButtons..............................2-42
EXIT (Exit Feature Customization Mode)............2-53
Express-Down Window....................................2-14
Extender, Safety Belt.......................................1-30
Exterior Lamps...............................................3-14
5

Mirrors..........................................................2-35
Automatic Dimming Rearview with OnStarž.....2-35
Automatic Dimming Rearview........................2-34
Manual Rearview Mirror with OnStar
ž.............2-33
Manual Rearview Mirror................................2-33
Outside Convex Mirror.................................2-36
Outside Power Mirrors..................................2-36
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-18
Normal Maintenance Replacement Parts...........5-105
O
Odometer......................................................3-31
Off-Road Recovery..........................................4-12
OIL LIFE (GM Oil Life System Reset)................2-46
Oil ................................................................5-16
Engine.......................................................5-16
Pressure Message.......................................3-43
Older Children, Restraints................................1-31
Online Owner Center........................................ 7-3
OnStar
žPersonal Calling.................................2-38
OnStaržServices............................................2-37
OnStaržSystem.............................................2-37
OnStaržVirtual Advisor....................................2-38
Operation Tips................................................3-26ORIG. SET (Return to the Original Settings).......2-52
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-25
Outside.........................................................2-36
Convex Mirror.............................................2-36
Power Mirrors.............................................2-36
Overheated Engine Protection Operating Mode . . . 5-30
Overseas ± Customer Assistance........................ 7-4
Owners, Canadian............................................... ii
Owner's Information........................................7-11
P
Parade Dimming.............................................3-18
Park (P)........................................................2-30
Shifting Out of............................................2-30
Parking Brake and Automatic Transaxle
Park (P) Mechanism Check...........................6-13
Parking on Hills..............................................4-39
Parking.........................................................2-27
Brake........................................................2-27
Over Things That Burn.................................2-31
Park(P).........................................................2-27
Shifting Into................................................2-27
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-10
Part C - Periodic MaintenanceInspections..........6-14
Part D - Recommended Fluids and Lubricants....6-16
Part E - Maintenance Record...........................6-17
10