2008 CHEVROLET UPLANDER engine overheat

If the overheat warning continues, there is 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.
{CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly.
They are under pressure, and if you turn the
radiator pressure cap — even a little — they
can come out at high speed. Never turn the
cap when the cooling system, including the
radiator pressure cap, is hot. Wait for the
cooling system and radiator pressure cap to
cool if you ever have to turn the pressure cap.
How to Add Coolant to the Radiator
Notice:Your engine has a specic radiator ll
procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.
1. You can remove the
radiator pressure cap
when the cooling
system, including the
radiator pressure
cap and upper radiator
hose, is no longer hot.
Turn the pressure cap slowly counterclockwise.
If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left, close the
cap and wait for the system to cool down.
2. Keep turning the pressure cap. Remove the
pressure cap.
5-29

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer/retailer
rst. Some electrical equipment can damage
your vehicle and the damage would not be covered
by your warranty. Some add-on electrical equipment
can keep other components from working as they
should.
Add-on equipment can drain your vehicle’s battery, even
if your vehicle is not operating.
Your vehicle has an airbag system. Before attempting to
add anything electrical to your vehicle, seeServicing
Your Airbag-Equipped Vehicle on page 1-90.
Headlamp Wiring
The headlamp wiring is protected by four internal fuses
in the underhood fuse block. An electrical overload
will cause the lamps to go on and off, or in some cases
to remain off. If this happens, have your headlamp
wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
fuse in the underhood fuse block. If the motor overheats
due to heavy snow, etc., the wiper will stop until the
motor cools. If the overload is caused by some electrical
problem, be sure to get it xed.
The rear washer pump is controlled by a relay located
in the engine compartment, behind the windshield
washer uid reservoir. The rear wiper motor is protected
by a fuse located in the instrument panel fuse block.
Power Windows and Other
Power Options
Circuit breakers in the instrument panel fuse panel
protect the power windows and other power accessories.
When the current load is too heavy, the circuit breaker
opens and closes, protecting the circuit until the
problem is xed.
5-99

Engine
Air Cleaner/Filter.........................................5-18
Check and Service Engine Soon Light............3-44
Coolant......................................................5-22
Coolant Heater............................................2-34
Coolant Temperature Gage...........................3-43
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-12
Exhaust.....................................................2-41
Oil .............................................................5-13
Oil Life System...........................................5-16
Overheated Protection Operating Mode...........5-25
Overheating................................................5-24
Running While Parked..................................2-42
Starting......................................................2-32
Entry Lighting.................................................3-18
Event Data Recorders.....................................7-16
Exit Lighting...................................................3-19
Extender, Safety Belt.......................................1-42
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-18
Finish Damage...............................................5-96
Fixed Mast Antenna.......................................3-121
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-72
Flat Tire, Changing.........................................5-73
Flat Tire, Storing.............................................5-86
Fluid.............................................................5-20
Power Steering...........................................5-31
Windshield Washer......................................5-32
Folding Tray...................................................2-59
Front Console Storage Area.............................2-59
Front Reading Lamps......................................3-19
Front Turn Signal, Parking and Daytime
Running Lamps...........................................5-44
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-5
E85 (85% Ethanol)........................................ 5-6
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-49
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-49
Fuses
Fuses and Circuit Breakers.........................5-100
Instrument Panel Fuse Block.......................5-100
Underhood Fuse Block...............................5-102
Windshield Wiper.........................................5-99
5

OnStar®System, see OnStar®Manual...............2-47
Operation, Universal Home Remote System........2-51
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-30
Outlets
Accessory Power.........................................3-22
Outside
Convex Mirror.............................................2-44
Heated Mirrors............................................2-44
Power Mirrors.............................................2-43
Overhead Console..................................2-56, 2-57
Overhead Console Switchbank..........................3-21
Overheated Engine Protection Operating Mode.....5-25
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-96
Park Aid........................................................2-44
Park Brake....................................................2-38
Park (P)
Shifting Into................................................2-38
Shifting Out of............................................2-40Parking
Assist........................................................2-44
Over Things That Burn.................................2-40
Passenger Airbag Status Indicator.....................3-38
Passenger Compartment Air Filter.....................3-32
Passenger Sensing System..............................1-85
Passing.........................................................4-12
PASS-Key
®III ................................................2-29
PASS-Key®III Operation..................................2-29
Perchlorate Materials Requirements, California...... 5-4
Power
Door Locks.................................................2-11
Electrical System.........................................5-99
Outlet 115 Volt Alternating Current.................3-23
Rear Quarter Windows.................................2-26
Retained Accessory (RAP)............................2-32
Seat............................................................ 1-3
Sliding Door................................................2-16
Steering Fluid.............................................5-31
Windows....................................................2-25
Privacy..........................................................7-16
Event Data Recorders..................................7-16
Navigation System.......................................7-17
OnStar.......................................................7-17
Radio Frequency Identication.......................7-17
Programmable Automatic Door Unlock...............2-13
9