2005 PONTIAC GRAND PRIX oil temperature

If the vehicle is left running it will automatically shut off
after 10 minutes unless a time extension has been
done. To manually shut off a remote start, do any of
the following:
Aim the remote keyless entry transmitter at the
vehicle and press the remote start button until
the parking lamps turn off.
Turn on the hazards warning ashers.
Turn the ignition switch on and then off.
The remote start feature provides two separate starts,
each with 10 minutes of engine running, or it provides
one start with 10 minutes of engine running which may
be extended by 10 more minutes. If you press and
release the transmitter lock button and then press and
hold the remote start button, on the keyless entry
transmitter, again before the rst 10 minutes of the
engine running time has expired, 10 minutes are added
to the remaining minutes. For example, if the lock
and then the remote start buttons are pressed again
after ve minutes of the engine run time, 10 minutes
are added and you now have 15 minutes of the
engine running. The added 10 minutes is considered
a second start. Once two remote starts or a single start
with a time extension have been provided, the vehicle
must be started normally with the ignition key to
get more remote starts.The remote start feature will not operate if the key is in
the ignition, a door is open or the hood is not closed.
The remote start feature will not operate if there is
an emission control system malfunction. Also, the engine
will turn off during a remote vehicle start if the coolant
temperature gets too high or the oil pressure gets low.
If a remote start is attempted and unsuccessful, the
Driver Information Center (DIC) will display REMOTE
START DISABLED.
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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.
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 5-12
for more information on location.
3. Plug it 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.
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The compass is self-calibrating, which eliminates the
need to manually set the compass. However, under
certain circumstances, such as during a long distance
cross-country trip, it will be necessary to compensate for
compass variance and reset the zone through the
DIC. See “Setting the Compass” later in this section for
more information.
The buttons on the DIC trip computer are gages, trip
odometer, set/reset, options, and fuel.
Gages
2(Gages):Press this button to access the OIL LIFE
REMAINING, TRANSMISSION FLUID TEMPERATURE,
BATTERY, ENGINE HOURS, ENGINE BOOST, and
MAXIMUM Gs modes.OIL LIFE REMAINING:Press the gages button until
OIL LIFE REMAINING is displayed. This screen
indicates the percentage of oil life in the vehicle’s engine
that has not degraded. SeeEngine Oil on page 5-14
for more information.
After the oil has been changed in the vehicle, reset the
ENGINE OIL MONITOR screen in the options menu.
See “Engine Oil Monitor System” under “Options” later in
this section.
Press the gages button again to advance to the next
screen.
TRANSMISSION FLUID TEMP:This screen displays
this message along with the temperature (F° or C°)
of the transmission uid.
Press the gages button again to advance to the next
screen.
BATTERY:This screen displays the amount of volts
the battery is generating.
Your vehicle’s charging system regulates voltage based
on the state of the battery. The battery voltage may
uctuate when viewing this information on the DIC. This
is normal.
Press the gages button again to advance to the next
screen.
3-58

This symbol comes on
with the HOT COOLANT
warning message.
This warning message will appear while the engine
coolant temperature is too hot. The hot coolant
temperature warning light will also appear on the
instrument panel cluster. Also, the engine coolant
temperature gage will read in the red or “hot” area.
SeeEngine Coolant Temperature Warning Light
on page 3-43andEngine Coolant Temperature Gage
on page 3-43for more information.
To avoid added strain, turn off the air conditioner if it is
on. When the coolant temperature returns to normal,
the air conditioner can be turned back on.
This message will display only while the ignition is in
RUN. A chime will sound continuously when this
message is displayed. Press the set/reset button to
acknowledge this message and to clear it from
the screen.This message will continue to display if it has not been
acknowledged when the engine is turned off. It will
also re-display for three seconds if the message has
been acknowledged, but the condition still exists
when the engine is turned off.
If the condition still exists, the message will re-appear
when the engine is turned on.
HOT ENGINE OIL. REDUCE SPEED
This warning message comes on when the vehicle’s
engine oil is above the proper engine operating
temperature. Reduce the speed of the vehicle. If the
warning message continues to display, have the vehicle
serviced by your GM dealer as soon as possible. A
chime will sound continuously when this message
is displayed. Press the set/reset button to acknowledge
this warning message. This clears it from the screen.
If the condition still exists, the message will re-appear
when the engine is turned on.
3-75

REDUCED ENGINE POWER
This symbol comes on with
the REDUCED ENGINE
POWER warning message.
This warning message appears when the vehicle’s
engine power is reduced. This happens when driving
conditions, such as climbing a steep hill, make the
transaxle overwork in a gear that may cause damage
to the vehicle’s engine or transaxle. Reduced engine
power can affect the vehicle’s ability to accelerate.
This message will display only when the ignition is in
RUN. A chime will sound for two seconds while
this message is displayed. Press the set/reset button
to acknowledge this message and to clear it from
the screen.
This message will continue to display if it has not been
acknowledged when the engine is turned off. It will
also re-display for three seconds if the message has
been acknowledged, but the condition still exists
when the engine is turned off.
If the condition still exists, the message will re-appear
when the engine is turned on.
REMOTE START ACTIVE PRESS
HAZARD SWITCH TO CANCEL
This warning message will come on when a remote
start is initiated. If you would like to cancel the remote
start, turn on the hazard warning ashers. See
Hazard Warning Flashers on page 3-5.
REMOTE START DISABLED
This warning message will come on if a remote start
attempt is unsuccessful. This may be caused by any of
the following conditions:
The remote start system is disabled through
the DIC.
The key is in the ignition.
The hood or the doors are not closed.
There is an emission control system malfunction.
The engine coolant temperature is too high.
The oil pressure is low.
See “REMOTE START” underDIC Controls and
Displays (Base Level DIC) on page 3-49orDIC Controls
and Displays (Uplevel DIC with Trip Computer) on
page 3-57and “Remote Vehicle Start” underRemote
Keyless Entry System Operation on page 2-5for
more information.
3-82

SAE 5W-30
As shown in the viscosity chart, SAE 5W-30 is best
for your vehicle.
These numbers on an oil container show its
viscosity, or thickness. Do not use other viscosity
oils such as SAE 20W-50.
Oils meeting these
requirements should also
have the starburst
symbol on the container.
This symbol indicates
that the oil has been
certied by the American
Petroleum Institute (API).
You should look for this information on the oil container,
and useonlythose oils that are identied as meeting
GM Standard GM6094M and have the starburst symbol
on the front of the oil container.Notice:Use only engine oil identied as meeting
GM Standard GM6094M and showing the American
Petroleum Institute Certied For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench
®oil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both will provide
easier cold starting and better protection for your
engine at extremely low temperatures.
Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M are all you will need for good performance
and engine protection.
5-17

Engine Oil Life System
When to Change Engine Oil
Your vehicle has a computer system that lets you
know when to change the engine oil and lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated
can vary considerably. For the oil life system to
work properly, you must reset the system every time
the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE OIL SOON message will come
on. SeeDIC Warnings and Messages on page 3-69.
Change your oil as soon as possible within the next
600 miles (1 000 km). It is possible that, if you are
driving under the best conditions, the oil life system may
not indicate that an oil change is necessary for over a
year. However, your engine oil and lter must be
changed at least once a year and at this time the system
must be reset. Your dealer has GM-trained service
people who will perform this work using genuine GM
parts and reset the system. It is also important to check
your oil regularly and keep it at the proper level.If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed.How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to
change your engine oil and lter based on vehicle use.
Anytime your oil is changed, reset the system so it
can calculate when the next oil change is required. If a
situation occurs where you change your oil prior to a
CHANGE OIL SOON message appearing on the
DIC, reset the system.
To reset the oil life system, after the oil has been
changed, use the following procedure:
1. Press the options button on the DIC until ENGINE
OIL MONITOR appears on the DIC screen.
2. Press the set/reset button to reset the system.
The next screen indicates that the engine oil
monitor system has been reset.
If the vehicle is equipped with the trip computer
DIC, when the gage button is pressed and the OIL
LIFE REMAINING mode appears, it should read
100 percent OIL LIFE REMAINING.
3. Turn the key to OFF.
5-18

Automatic Transaxle Fluid
When to Check and Change
A good time to check the automatic transaxle uid level
is when the engine oil is changed.
Change both the uid and lter every 50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
If the vehicle is not used under any of these
conditions, change the uid and lter at
100,000 miles (166 000 km).
SeeScheduled Maintenance on page 6-4.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at the dealership service
department.If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading on the dipstick.
Notice:Too much or too little uid can damage the
transaxle. Too much can mean that some of the
uid could come out and fall on hot engine or
exhaust system parts, starting a re. Too little uid
could cause the transaxle to overheat. Be sure
to get an accurate reading if you check the
transaxle uid.
Wait at least 30 minutes before checking the transaxle
uid level if you have been driving:
When outside temperatures are above 90°F (32°C).
At high speed for quite a while.
In heavy traffic — especially in hot weather.
While pulling a trailer.
To get the right reading, the uid should be at normal
operating temperature, which is 180°F to 200°F
(82°C to 93°C).
Get the vehicle warmed up by driving about
15 miles (24 km) when outside temperatures are
above 50°F (10°C). If it is colder than 50°F (10°C),
you may have to drive longer.
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