2008 PONTIAC TORRENT engine overheat

Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixture at the surge tank, but only when the
engine is cool.
{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. Do not spill coolant on a hot engine.
When replacing the pressure cap, make sure it is
hand-tight and fully seated.
Engine Overheating
You will nd a coolant temperature gage on your
vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 3-35. There are several
different types of engine overheating messages that may
be displayed in the Driver Information Center (DIC).
SeeDIC Warnings and Messages on page 3-52.
If Steam Is Coming From Your Engine
{CAUTION:
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam coming
from it. Turn it off and get everyone away from
the vehicle until it cools down. Wait until there
is no sign of steam or coolant before you open
the hood.
If you keep driving when the vehicles engine is
overheated, the liquids in it can catch re. You
or others could be badly burned. Stop your
engine if it overheats, and get out of the vehicle
until the engine is cool.
SeeOverheated Engine Protection Operating
Mode on page 5-26for information on driving to
a safe place in an emergency.
Notice:If your engine catches re because you keep
driving with no coolant, your vehicle can be badly
damaged. The costly repairs would not be covered by
your warranty. SeeOverheated Engine Protection
Operating Mode on page 5-26for information on
driving to a safe place in an emergency.
5-25

If No Steam Is Coming From Your
Engine
An overheat warning can indicate a serious problem.
If you get an engine overheat warning, but see or hear
no steam, the problem may not be too serious.
Sometimes the engine can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign of steam,
try this for a minute or so:
1. If the air conditioner is on, turn it off.
2. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
3. Try to minimize engine load. If you are in a traffic
jam, shift to NEUTRAL (N); otherwise, shift to the
highest gear while driving.
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about ten minutes.
If the warning does not come back on, you can drive
normally.
If the warning continues and you have not stopped, pull
over, stop, and park your vehicle right away.If there is still no sign of steam, you can idle the engine
for three minutes while you are parked. If you still
have the warning, turn off the engine and get everyone
out of the vehicle until it cools down. Also, see
“Overheated Engine Protection Operating Mode” later in
this section.
You may decide not to lift the hood but to get service
help right away.
Overheated Engine Protection
Operating Mode
This emergency operating mode lets your vehicle 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,
there is a signicant loss in power and engine
performance. The temperature gage indicates an
overheat condition exists. Driving extended distances
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 5-15.
5-26

The coolant level should be at the COLD FILL line. If it
is not, you may have a leak at the radiator hoses,
heater hoses, radiator, water pump, or somewhere else
in the cooling system.
{CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them. If
you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive the
vehicle.
If there seems to be no leak, with the engine on, check
to see if the electric engine cooling fans are running.
If the engine is overheating, both fans should be
running. If they are not, your vehicle needs service.
Turn off the engine.
Notice:Engine damage from running your engine
without coolant is not covered by your warranty. See
Overheated Engine Protection Operating Mode on
page 5-26for information on driving to a safe place
in an emergency.Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant could
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by the warranty. Always
use DEX-COOL
®(silicate-free) coolant in the vehicle.
How to Add Coolant to the Coolant
Surge Tank
Notice:This vehicle has a specic coolant ll
procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.
If you have not found a problem yet, check to see if
coolant is visible in the surge tank. If coolant is visible
but the coolant level is not at the COLD FILL line, add a
50/50 mixture of clean, drinkable water and DEX-COOL
®
coolant at the coolant surge tank, but be sure the
cooling system, including the coolant surge tank
pressure cap, is cool before you do it.
5-28

{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 coolant
surge tank pressure cap — even a little — they
can come out at high speed. Never turn the
cap when the cooling system, including the
coolant surge tank pressure cap, is hot. Wait
for the cooling system and coolant surge tank
pressure cap to cool if you ever have to turn
the pressure cap.
{CAUTION:
Adding only plain water to the cooling system
can be dangerous. Plain water, or some other
liquid such as alcohol, can boil before the
proper coolant mixture will. The vehicle’s
coolant warning system is set for the proper
coolant mixture. With plain water or the wrong
mixture, the engine could get too hot but you
would not get the overheat warning. The
engine could catch re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
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.
5-29

Door
Ajar Light...................................................3-43
Delayed Locking..........................................2-12
Locks........................................................2-11
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-12
Rear Door Security Locks.............................2-12
Driver
Seat Height Adjuster...................................... 1-3
Driver Information Center (DIC).........................3-45
DIC Operation and Displays..........................3-45
DIC Vehicle Personalization..........................3-60
DIC Warnings and Messages........................3-52
Driving
At Night.....................................................4-14
Before a Long Trip......................................4-16
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Highway Hypnosis.......................................4-16
Hill and Mountain Roads..............................4-17
In Rain and on Wet Roads...........................4-15
Rocking Your Vehicle to Get it Out.................4-22
Winter........................................................4-18
DVD
Rear Seat Entertainment System..................3-101E
EDR .............................................................7-17
Electrical System
Add-On Equipment......................................5-99
Engine Compartment Fuse Block.................5-102
Fuses and Circuit Breakers...........................5-99
Instrument Panel Fuse Block.......................5-100
Windshield Wiper Fuses...............................5-99
Engine
Air Cleaner/Filter.........................................5-20
Change Engine Oil Light...............................3-40
Check and Service Engine Soon Light............3-36
Coolant......................................................5-22
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-35
Coolant Temperature Warning Light................3-35
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-36
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-26
Overheating................................................5-25
Reduced Power Light...................................3-41
Running While Parked..................................2-36
Starting......................................................2-22
Entry Lighting.................................................3-17
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-30
4

Overheated Engine Protection
Operating Mode..........................................5-26
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-96
Park Brake....................................................2-32
Park (P)
Shifting Into................................................2-33
Shifting Out of............................................2-35
Parking
Over Things That Burn.................................2-35
Passenger Airbag Status Indicator.....................3-30
Passenger Compartment Air Filter.....................3-24
Passenger Sensing System..............................1-64
Passing.........................................................4-12
PASS-Key
®III+..............................................2-18
PASS-Key®III+ Operation................................2-19
Perchlorate Materials Requirements, California...... 5-4
Power
Door Locks.................................................2-11
Reduced Engine Light..................................3-41
Retained Accessory (RAP)............................2-22
Seat............................................................ 1-3
Steering Fluid.............................................5-32
Windows....................................................2-16Privacy..........................................................7-17
Event Data Recorders..................................7-18
Navigation System.......................................7-19
OnStar.......................................................7-19
Radio Frequency Identication.......................7-19
Programmable Automatic Door Locks.................2-12
R
Radio Frequency Identication (RFID), Privacy....7-19
Radios..........................................................3-67
Radio(s)........................................................3-71
Radios
Navigation/Radio System, see Navigation
Manual.................................................3-101
Reception.................................................3-111
Setting the Time..........................................3-68
Theft-Deterrent..........................................3-110
Rear Compartment Storage Panel/Cover............2-45
Rear Door Security Locks................................2-12
Rear Seat Armrest..........................................2-46
Rear Seat Entertainment System.....................3-101
Rear Windshield Washer/Wiper.........................3-11
Rearview Mirror, Automatic Dimming with
OnStar
®.....................................................2-38
Rearview Mirror with OnStar®...........................2-37
Rearview Mirrors.............................................2-37
9