heater PONTIAC G6 2008 User Guide

What to Use
Use a mixture of one-half clean, drinkable water and
one-half DEX-COOL®coolant which will not damage
aluminum parts. If you use this coolant mixture, you do
not need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle’s coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you would not get the overheat warning.
Your 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:If you use an improper coolant mixture, your
engine could overheat and be badly damaged. The
repair cost would not be covered by your warranty.
Too much water in the mixture can freeze and crack
the engine, radiator, heater core, and other parts.
If you have to add coolant more than four times a year,
have your dealer/retailer check the cooling system.
Notice:If you use extra inhibitors and/or additives
in your vehicle’s cooling system, you could
damage your vehicle. Use only the proper mixture
of the engine coolant listed in this manual for
the cooling system. SeeRecommended Fluids and
Lubricants on page 6-13for more information.
5-31

If you get the overheat warning with no sign of steam,
try this for a minute or so:
1. In heavy traffic, let the engine idle in NEUTRAL (N)
while stopped. If it is safe to do so, pull off the road,
shift to PARK (P) or NEUTRAL (N) and let the
engine idle.
2. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If the warning does not come back on, you can drive
normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there is still no sign of steam, 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.
You might 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 5-21.
5-35

Cooling System
When you decide it is safe to lift the hood, this is what
you see:
A. Engine Cooling Fans
B. Engine Coolant Surge Tank
C. Pressure Cap{CAUTION:
An electric engine cooling fan under the hood
can start up even when the engine is not
running and can injure you. Keep hands,
clothing, and tools away from any underhood
electric fan.
If the coolant inside the coolant surge tank is boiling, do
not do anything else until it cools down. The vehicle
should be parked on a level surface.
The coolant level should be at or above the FULL
COLD mark on the coolant surge tank. If it is not, you
may have a leak at the pressure cap or in the radiator
hoses, heater hoses, radiator, water pump, or
somewhere else in the cooling system.
3.5L V6 Engine shown, 2.4L L4, 3.6L V6 and 3.9L
V6 Engines similar
5-36

{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.
Notice:Engine damage from running the engine
without coolant is not covered by the warranty.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 or above the FULL COLD
mark, 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. See
Engine Coolant on page 5-30for more information.
5-37

If no coolant is visible in the surge tank, add coolant as
follows:
{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.
5-38

Child Restraints
Child Restraint Systems...............................1-39
Infants and Young Children...........................1-36
Lower Anchors and Tethers for Children..........1-44
Older Children.............................................1-33
Securing a Child Restraint in a Rear
Seat Position...........................................1-53
Securing a Child Restraint in the Right Front
Seat Position...........................................1-56
Where to Put the Restraint...........................1-42
Cleaning
Aluminum Wheels......................................5-106
Exterior Lamps/Lenses................................5-104
Fabric/Carpet............................................5-101
Finish Care...............................................5-104
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-103
Interior.....................................................5-100
Leather....................................................5-102
Tires........................................................5-106
Underbody Maintenance.............................5-107
Washing Your Vehicle.................................5-104
Weatherstrips............................................5-103
Windshield and Wiper Blades......................5-105
Climate Control System...................................3-19
Automatic...................................................3-23
Outlet Adjustment........................................3-26
Clock, Setting.................................................3-53
Collision Damage Repair..................................7-11Compact Spare Tire........................................5-99
Compass...............................................2-37, 2-39
Content Theft-Deterrent....................................2-18
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-44
Coolant
Engine Temperature Gage............................3-37
Heater, Engine............................................2-25
Cooling System..............................................5-36
Courtesy Lamps.............................................3-16
Cruise Control................................................3-10
Cruise Control Light........................................3-42
Cupholder(s)..................................................2-44
Customer Assistance Information
Courtesy Transportation.................................. 7-9
Customer Assistance for Text
Telephone (TTY) Users............................... 7-5
Customer Assistance Offices........................... 7-5
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-6
Reporting Safety Defects to General
Motors....................................................7-15
Reporting Safety Defects to the Canadian
Government............................................7-14
Reporting Safety Defects to the United
States Government...................................7-14
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-15
3

D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-2
Delayed Headlamps........................................3-14
Delayed Locking.............................................2-11
Doing Your Own Service Work........................... 5-5
Dome Lamp...................................................3-17
Door
Automatic Door Lock....................................2-11
Delayed Locking..........................................2-11
Door Ajar Reminder.....................................2-11
Locks........................................................2-10
Power Door Locks.......................................2-10
Programmable Automatic Door Unlock............2-12
Rear Door Security Locks.............................2-12
Driver Information Center (DIC).........................3-43
DIC Operation and Displays..........................3-43
DIC Vehicle Personalization..........................3-50
DIC Warnings and Messages........................3-46
Driving
At Night.....................................................4-12
Before a Long Trip......................................4-13
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-14
Hill and Mountain Roads..............................4-14
In Rain and on Wet Roads...........................4-12
Rocking Your Vehicle to Get it Out.................4-20
Winter........................................................4-15
E
Easy Entry Seat............................................... 1-9
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-109
Engine Compartment Fuse Block.................5-112
Fuses......................................................5-110
Instrument Panel Fuse Block.......................5-110
Power Windows and Other Power Options....5-110
Rear Compartment Fuse Block....................5-116
Windshield Wiper Fuses.............................5-110
Engine
Air Cleaner/Filter.........................................5-26
Check and Service Engine Soon Light............3-38
Coolant......................................................5-30
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-37
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-35
Oil .............................................................5-21
Oil Life System...........................................5-24
Overheated Protection Operating Mode...........5-35
Overheating................................................5-33
Running While Parked..................................2-36
Starting......................................................2-23
Entry/Exit Lighting...........................................3-17
Event Data Recorders.....................................7-16
Extender, Safety Belt.......................................1-32
4

Headlamps (cont.)
Delayed.....................................................3-14
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-52
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-52
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Headlamps Off in Park (P)...............................3-14
Heated Seats................................................... 1-4
Heater...................................................3-19, 3-23
Highbeam On Light.........................................3-42
High-Speed Operation, Tires.............................5-70
Highway Hypnosis...........................................4-14
Hill and Mountain Roads..................................4-14
Hood
Checking Things Under................................5-12
Release.....................................................5-12
Horn............................................................... 3-6
How to Wear Safety Belts Properly...................1-18
I
Ignition Positions.............................................2-22
Infants and Young Children, Restraints...............1-36
Ination - Tire Pressure...................................5-68Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-16
Cluster.......................................................3-28
J
Jump Starting.................................................5-46
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-62
Lamps
Courtesy....................................................3-16
Dome........................................................3-17
Overhead Console Reading..........................3-17
Trunk.........................................................3-17
Lap-Shoulder Belt...........................................1-26
6