2007 PONTIAC GRAND PRIX heater

{CAUTION:
If the airbag readiness light in the
instrument panel cluster ever comes on
and stays on, it means that something may
be wrong with the airbag system. If this
ever happens, have the vehicle serviced
promptly, because an adult-size person
sitting in the right front passenger’s seat
may not have the protection of the frontal
airbag. SeeAirbag Readiness Light on
page 172for more on this, including
important safety information.
A thick layer of additional material such as a
blanket, or aftermarket equipment such as seat
covers, seat heaters, and seat massagers,
can affect how well the passenger sensing
system operates. Remove any additional
material from the seat cushion before reinstalling
or securing the child restraint and before
a small occupant, including a small adult,
sits in the passenger position.
77

Keys.............................................................. 84
Remote Keyless Entry (RKE) System.......... 86
Remote Keyless Entry (RKE) System
Operation................................................. 87
Doors and Locks.......................................... 92
Door Locks................................................. 92
Power Door Locks....................................... 94
Delayed Locking.......................................... 94
Programmable Automatic Door Locks.......... 95
Rear Door Security Locks........................... 95
Lockout Protection....................................... 96
Trunk.......................................................... 96
Windows....................................................... 98
Power Windows.......................................... 99
Sun Visors................................................ 100
Theft-Deterrent Systems............................. 100
Content Theft-Deterrent............................. 100
PASS-Key
®III ........................................... 102
PASS-Key®III Operation........................... 103
Starting and Operating Your Vehicle......... 105
New Vehicle Break-In................................ 105
Ignition Positions....................................... 105
Retained Accessory Power (RAP)............. 106
Starting the Engine.................................... 107Engine Coolant Heater.............................. 108
Active Fuel Management™........................ 109
Automatic Transaxle Operation.................. 110
Parking Brake........................................... 115
Shifting Into Park (P) ................................. 116
Shifting Out of Park (P)............................. 117
Parking Over Things That Burn................. 118
Engine Exhaust......................................... 119
Running the Engine While Parked............. 120
Mirrors......................................................... 121
Manual Rearview Mirror with OnStar
®....... 121
Outside Power Mirrors............................... 121
Outside Convex Mirror............................... 122
OnStar
®System.......................................... 122
Storage Areas............................................. 126
Glove Box................................................. 126
Cupholder(s).............................................. 126
Sunglasses Storage Compartment............. 127
Front Seat Storage Net............................. 127
Center Console Storage Area.................... 127
Assist Handles.......................................... 127
Convenience Net....................................... 127
Sunroof....................................................... 128
Section 2 Features and Controls
83

2. If the engine does not start after 5-10 seconds,
especially in very cold weather (below 0°F
or−18°C), it could be ooded with too much
gasoline. Try pushing the accelerator
pedal all the way to the oor and holding it
there as you hold the key in START for up to
a maximum of 15 seconds. Wait at least
15 seconds between each try, to allow the
cranking motor to cool down. When the engine
starts, let go of the key and accelerator. If
the vehicle starts briey but then stops again,
do the same thing. This clears the extra
gasoline from the engine. Do not race the
engine immediately after starting it. Operate
the engine and transaxle gently until the
oil warms up and lubricates all moving parts.
Notice:Your engine is designed to work with
the electronics in your vehicle. If you add
electrical parts or accessories, you could
change the way the engine operates. Before
adding electrical equipment, check with
your dealer. If you do not, your engine might
not perform properly. Any resulting damage
would not be covered by your vehicle’s
warranty.Engine Coolant Heater
The vehicle may be equipped with an engine
coolant heater. In very cold weather, 0°F (−18°C)
or colder, the engine coolant heater can help.
The vehicle will start easier and get better
fuel economy during engine warm-up. Usually, the
coolant heater should be plugged in a minimum
of four hours prior to starting the vehicle. At
temperatures above 32°F (0°C), use of the coolant
heater is not required. Your vehicle may also
have an internal thermostat in the plug end of the
cord. This will prevent operation of the engine
coolant heater when the temperature is at or above
0°F (−18°C) as noted on the cord.
108

To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical
cord. The cord is located above the engine
air cleaner/lter. SeeEngine Compartment
Overview on page 346for more information on
location.
3. Plug the cord into a normal, grounded
110-volt AC outlet.
{CAUTION:
Plugging the cord into an ungrounded
outlet could cause an electrical shock.
Also, the wrong kind of extension cord
could overheat and cause a re. You
could be seriously injured. Plug the cord
into a properly grounded three-prong
110-volt AC outlet. If the cord will not
reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.4. Before starting the engine, be sure to unplug
and store the cord as it was before, making
sure to keep it away from moving engine parts.
If this is not done, the cord could be damaged.
How long should the coolant heater be kept
plugged in? The answer depends on the outside
temperature, the kind of oil that is in the vehicle,
and some other things. Instead of trying to list
everything here, we ask that you contact your
dealer in the area where the vehicle will be parked.
The dealer can give you the best advice for that
particular area.
Active Fuel Management™
Your vehicle’s engine may be equipped with
Active Fuel Management™. This system allows
the engine to operate on either all or half of
its cylinders, depending on your driving conditions.
When less power is required, such as cruising
at a constant vehicle speed, the system will
operate in the half cylinder mode, allowing your
vehicle to achieve better fuel economy. When
greater power demands are required, such
as accelerating from a stop, passing, or merging
onto a freeway, the system will maintain
full-cylinder operation.
109

{CAUTION:
Snow can trap exhaust gases under your
vehicle. This can cause deadly CO
(carbon monoxide) gas to get inside.
CO could overcome you and kill you.
You cannot see it or smell it, so you might
not know it is in your vehicle. Clear away
snow from around the base of your
vehicle, especially any that is blocking
your exhaust pipe. And check around
again from time to time to be sure snow
does not collect there.
Open a window just a little on the side of
the vehicle that is away from the wind.
This will help keep CO out.Run your engine only as long as you must. This
saves fuel. When you run the engine, make it go
a little faster than just idle. That is, push the
accelerator slightly. This uses less fuel for the heat
that you get and it keeps the battery charged.
You will need a well-charged battery to restart the
vehicle, and possibly for signaling later on with
your headlamps. Let the heater run for a while.
Then, shut the engine off and close the window
almost all the way to preserve the heat. Start
the engine again and repeat this only when you
feel really uncomfortable from the cold. But do it as
little as possible. Preserve the fuel as long as
you can. To help keep warm, you can get out of
the vehicle and do some fairly vigorous exercises
every half hour or so until help comes.
315

Notice:Using coolant other than DEX-COOL®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL®engine coolant
which will not damage aluminum parts. If this
coolant mixture is used, nothing else needs to be
added.
{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.
361

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. See
Overheated Engine Protection Operating Mode
on page 366for information on driving to a
safe place in an emergency.
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 an overheat warning occurs without any 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. Set the heater at the highest setting and the
fan at the highest speed and open the
windows as necessary.
If the overheat warning no longer exists, the
vehicle can be driven. Just to be safe, drive slower
for about 10 minutes. If the warning does not
come back on, the vehicle can be driven normally.
If the warning continues, and you have not
stopped, pull over, stop, and park the vehicle
right away.
If there is still no sign of steam, idle the engine for
three minutes while parked. If the warning is
still there, 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.
365

When the engine is cold, the coolant level should
be at or above the cold ll line on the coolant
recovery tank. To check the coolant level, look for
the cold ll line on the side of the coolant
recovery tank that faces the engine. If the level is
not correct, there may be a leak at the pressure
cap or in 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
fan(s) are running. If the engine is overheating,
the fan(s) should be running. If the fan(s) are not
running, the vehicle needs service.
Notice:Engine damage from running your
engine without coolant is not covered by your
warranty. SeeOverheated Engine Protection
Operating Mode on page 366for 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 your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
368