2003 PONTIAC GRAND PRIX heater

Section 2 Features and Controls
Keys ............................................................... 2.3
Remote Keyless Entry System
......................... 2.4
Remote Keyless Entry System Operation ........... 2.5
Doors and Locks ............................................. 2-8
Door Locks
.................................................... 2-8
Power Door Locks
.......................................... 2-9
Last Door Closed Locking
................................ 2-9
Programmable Automatic Door Locks
.............. 2-10
Lockout Protection
........................................ 2-10
Leaving Your Vehicle
.................................... 2-1 1
Trunk
.......................................................... 2-1 1
Windows ........................................................ 2.13
Power Windows
............................................ 2-14
Sun Visors
................................................... 2.14
Theft-Deterrent Systems .................................. 2.15
Content Theft-Deterrent
................................. 2.15
PASS-Key@
Ill .......................................... 2.16
PASS-Key@
Ill Operation ........................... 2-17
Starting and Operating Your Vehicle ............... -2-1 9
New Vehicle Break-In
.................................... 2-19
Ignition Positions
.......................................... 2.19
Starting Your Engine
..................................... 2-20
Engine Coolant Heater
.................................. 2-23
Automatic Transaxle Operation
....................... 2.24 Shifting Into
Park
(P) ..................................... 2-28
Parking Over Things That Burn
....................... 2-30
Shifting
Out
of Park (PI ................................. 2-30
Engine Exhaust ............................................ 2-31
Running Your Engine While You Are Parked
.... 2-32
Mirrors ........................................................... 2-33
Manual Rearview Mirror
................................ -2-33
Automatic Dimming Rearview Mirror with
Onstar@, Compass and Temperature
Automatic Dimming Rearview Mirror with
Compass and Temperature Display
.............. 2-34
Outside Power Mirrors
................................... 2-37
Outside Convex Mirror
................................... 2-37
OnStar@ System ............................................. 2-38
Storage Areas .... -2-40
Glove Box
................................................... 2-40
Overhead Console
........................................ 2-40
Center Console Storage Area
......................... 2-40
Assist Handles
............................................. 2-41
Purse or Litter Bag Holder
............................. 2-41
Rear Storage Area
........................................ 2-41
Convenience Net
.......................................... 2-41
Trunk Access Panel
...................................... 2-41
Display
.................................................... 2-33
....................................
Parking Brake .............................................. 2-27 Sunroof .................. ........... ............. 2.42
2-1

Engine Coolant Heater

Your 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. You’ll get easier
starting and better fuel economy during engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior
to starting your vehicle.
At temperatures above 32°F
(OOC), use of the coolant
heater
is not required.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The cord is located below the engine air
cleaner/filter near the coolant reservoir bottle. See
Engine Comparfment Overview on page
5-12
for more information on location.
3. Plug
it into a normal, grounded 1 IO-volt AC outlet.
Plugging the cord into an ungrounded outlet
could cause an electrical shock.
Also, the
wrong kind of extension cord could overheat
and cause a fire. You could be seriously injured. Plug the cord into a properly grounded
three-prong 110-volt
AC outlet. If the cord
won’t 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
to keep it away
from moving engine parts. If you don’t, it could be
damaged.
2-23

How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer in the area where you’ll be parking your
vehicle. The dealer can give you the best advice for that
particular area.
Automatic Transaxle Operation
Maximum engine speed is limited when your vehicle is
in PARK
(P) or NEUTRAL (N) to protect driveline
components from improper operation.
There are several different positions for the shift lever.
PARK (P): This position locks the front wheels. It’s
the best position to
use when you start the engine
because the vehicle can’t move easily.
The automatic transaxle has a shift lever on the console
between the seats. There is also a display of the gear
positions on the instrument panel cluster near the
speedometer and tachometer.
It is dangerous to get out of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake firmly set. Your vehicle can roll.
Don’t leave your vehicle when the engine is
running unless you have to. If you have left the
engine running,
the vehicle can move suddenly.
You
or others could be injured. To be sure your
vehicle won’t move, even when you’re on fairly
level ground, always set your parking brake and
move the
shift lever to PARK (P). See “Shifting
Into Park (P)”
in the Index. If you’re pulling a
trailer, see “Towing a Trailer”
in the Index.
2-24

vehicle. This can cause deadly CO (carbon
monoxide) gas to get inside. CO could
overcome you and kill you. You can’t 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
doesn’t collect there.
Open a window just a little on the side of the
vehicle that’s away from the wind. This will
help keep
CO out. I
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.
4-3 1

Engine Coolant
The cooling system in your vehicle is filled with
DEX-COOL@ engine coolant. This coolant is designed
to remain in your vehicle for
5 years or 150,000 miles
(240
000 km), whichever occurs first, if you add
only DEX-COOL@ extended life coolant.
The following explains your cooling system and how to
add coolant when it is low.
If you have a problem
with engine overheating or
if you need to add coolant to
your radiator, see Engine Overheating on page
5-33.
A 50/50 mixture of clean, drinkable water and
DEX-COOL@ engine coolant will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265°F (129°C)
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice: When adding coolant, it is important that
you use only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL@ is added to the
system, premature engine, heater core or radiator
corrosion may result. In addition, the engine coolant
will require change sooner
-- at 30,000 miles
(50,000 km) or 24 months, whichever occurs first.
Damage caused by the use
of coolant other than
DEX-COOL@ is not covered by your new vehicle
warranty.
What to Use
Use a mixture of one-half clean, drinkable water and
one-half DEX-COOL@ engine coolant which won’t
damage aluminum parts. If you use this coolant mixture,
you don’t need to add anything else.
1 ---.-.g only p n water to your c 3 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
CAUTION: (Continued)
I
5-30

Checking Coolant
coo It n ture. water or e
wrongmixture, your engine could get too hot
but you wouldn’t get the overheat warning.
Your engine could catch fire 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 wouldn’t 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 check your cooling system.
Notice: If you use the proper coolant, you don’t
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful. The
coolant recovery tank is located in the engine
compartment toward the rear of the engine
on
the passenger’s side of the vehicle.
See Engine Compartment Overview on page
5-12 for
more information on location. The vehicle must be on
a level surface.
When your engine is
cold, the coolant level
should be
at the COLD
mark or a little higher.
When your engine is
warm, the level should
be up to the HOT mark
or a little higher.
When your engine is warm, the level should be up to
the HOT mark or a little higher.
5-31

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. In heavy traffic let the engine idle in NEUTRAL (N)
while stopped.
If it’s safe to do so, pull off the rozd,
shift to PARK
(P) or NEUTRAL (N) and let the
engine idle.
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about
10 minutes.
If the warning doesn’t 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’s still no sign of steam, you can idle the engine
for three minutes while you’re 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” listed
previously in this section.
You may decide not to lift the hood but to get service
help right away.
2. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
5-35

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 recovery tank is boiling,
don’t do anything else until it cools down. The vehicle
should be parked on a level surface. When
the engine is cold,
the coolant level should be
at or above the
COLD
mark on the coolant
recovery tank.
If it isn’t, 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.
5-37