check engine PONTIAC GRAND PRIX 2006 Service Manual

Page 424 of 472

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-12for more information.
Capacities and Specications
ApplicationCapacities
English Metric
Automatic Transaxle 7.4 qt 7.0 L
Cooling System Including Reservoir
3800 V6 Engine 11.2 qt 10.6 L
3800 V6 Supercharged Engine 11.2 qt 10.6 L
5.3L V8 Engine 13.0 qt 12.3 L
Engine Oil with Filter
3800 V6 Engine 4.5 qt 4.3 L
3800 V6 Supercharged Engine 4.5 qt 4.3 L
5.3L V8 Engine 6 qt 5.7 L
Fuel Tank 17.5 gal 66.3 L
Wheel Nut Torque 100 ft lb 140Y
All capacities are approximate. When adding uid, be sure to ll to the appropriate level, as recommended in this
manual. Recheck uid level after lling.
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Page 428 of 472

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts, and recommended uids and
lubricants as prescribed in this manual are necessary
to keep your vehicle in good working condition. Any
damage caused by failure to follow scheduled
maintenance may not be covered by warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance is
important. Improper vehicle maintenance can even
affect the quality of the air we breathe. Improper uid
levels or the wrong tire ination can increase the level of
emissions from your vehicle. To help protect our
environment, and to keep your vehicle in good condition,
be sure to maintain your vehicle properly.
Using the Maintenance Schedule
We at General Motors want to help you keep your
vehicle in good working condition. But we do not know
exactly how you will drive it. You may drive very
short distances only a few times a week. Or you may
drive long distances all the time in very hot, dusty
weather. You may use your vehicle in making deliveries.
Or you may drive it to work, to do errands, or in many
other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You may need more
frequent checks and replacements. So please read
the following and note how you drive. If you have any
questions on how to keep your vehicle in good condition,
see your GM Goodwrench
®dealer.
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Page 430 of 472

Scheduled Maintenance
When the CHANGE OIL SOON message comes on, it
means that service is required for your vehicle. See
DIC Warnings and Messages on page 3-72. Have your
vehicle serviced 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 engine oil life
system may not indicate that vehicle service 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
GM Goodwrench
®dealer has GM-trained service
technicians who will perform this work using genuine
GM parts and reset the system.
If the engine oil life system is ever reset accidentally,
you must service your vehicle within 3,000 miles
(5 000 km) since your last service. Remember to reset
the oil life system whenever the oil is changed. See
Engine Oil Life System on page 5-19for information on
the Engine Oil Life System and resetting the system.When the CHANGE OIL SOON message appears,
certain services, checks, and inspections are required.
Required services are described in the following for
“MaintenanceI” and “MaintenanceII.” Generally,
it is recommended that your rst service be
MaintenanceI, your second service be MaintenanceII,
and that you alternate MaintenanceIand MaintenanceII
thereafter. However, in some cases, MaintenanceII
may be required more often.
MaintenanceI— Use MaintenanceIif the CHANGE
OIL SOON message comes on within 10 months
since the vehicle was purchased or MaintenanceII
was performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the message comes on
10 months or more since the last service or if the
message has not come on at all for one year.
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Page 431 of 472

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-16. Reset oil
life system. SeeEngine Oil Life System on page 5-19.An Emission
Control Service.••
Visually check for any leaks or damage.See footnote (k).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-21.See footnote (m).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 5-70and “Tire Wear Inspection” inAt Least Once a Month on
page 6-9.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid
as needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transaxle uid level and add uid as needed.•
Replace passenger compartment air lter.See footnote (g).•
Inspect throttle system.See footnote (j).•
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Page 434 of 472

(h)Change automatic transaxle uid and lter 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.
(i)Drain, ush, and rell cooling system. This service
can be complex; you should have your dealer perform
this service. See Engine Coolant on page 5-25 for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.
(j)Check throttle system for interference or binding and
for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator or
cruise control cables.
(k)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the uid level checked. Add uid if needed.(l)For supercharged engines only: Have your dealer
check the supercharger oil level and add the proper
supercharger oil as needed (or every 36 months,
whichever occurs rst). See Recommended Fluids
and Lubricants on page 6-12.
(m)If you drive regularly under dusty conditions, inspect
the lter at each engine oil change.
(n)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your GM Goodwrench
®dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
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Page 435 of 472

At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. SeeEngine Oil on page 5-16for
further details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. SeeEngine
Coolant on page 5-25for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your vehicle’s tires and make sure they
are inated to the correct pressures. Do not forget to
check the spare tire. SeeTires on page 5-60for further
details. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-88.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-70.
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Page 436 of 472

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-30.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle
should start only in PARK (P) or NEUTRAL (N). If
the vehicle starts in any other position, contact your
GM Goodwrench
®dealer for service.
Automatic Transaxle Shift Lock Control
System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-30.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to RUN, but do
not start the engine. Without applying the regular
brake, try to move the shift lever out of PARK (P)
with normal effort. If the shift lever moves out
of PARK (P), contact your GM Goodwrench
®dealer
for service.
6-10

Page 437 of 472

Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition to OFF in each shift lever position.
The ignition should turn to OFF only when the shift
lever is in PARK (P).
The key should come out only in OFF.
Contact your GM Goodwrench
®dealer if service is
required.
Parking Brake and Automatic Transaxle
Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transaxle in NEUTRAL (N),
slowly remove foot pressure from the regular
brake pedal. Do this until the vehicle is held by the
parking brake only.
To check the PARK (P) mechanism’s holding
ability: With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Contact your GM Goodwrench
®dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-11

Page 460 of 472

Audio System(s) (cont.)
Navigation/Radio System, see
Navigation Manual..................................3-139
Radio with CD...................................3-96, 3-107
Radio with Six-Disc CD..............................3-123
Setting the Time..........................................3-96
Theft-Deterrent Feature...............................3-139
Understanding Radio Reception...................3-140
XM™ Satellite Radio Antenna System...........3-142
Automatic Transaxle
Fluid..........................................................5-23
Operation...................................................2-25
B
Backglass Antenna........................................3-141
Battery..........................................................5-45
Exterior Lighting Battery Saver......................3-17
Run-Down Protection...................................3-20
Before Leaving on a Long Trip.........................4-24
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-8
Parking......................................................2-30
System Warning Light..................................3-42
Brakes..........................................................5-42
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-21Bulb Replacement...........................................5-53
Back-Up Lamps...........................................5-58
Front Turn Signal, Parking and Fog Lamps.....5-56
Halogen Bulbs............................................5-53
Headlamp Aiming........................................5-50
Replacement Bulbs......................................5-59
Taillamps, Turn Signal, and Stoplamps............5-57
Buying New Tires...........................................5-72
C
California Fuel.................................................. 5-6
California Proposition 65 Warning....................... 5-3
Canadian Owners................................................ ii
Capacities and Specications..........................5-118
Carbon Monoxide...................2-13, 2-33, 4-28, 4-40
Care of
Safety Belts..............................................5-104
Your CD Player.........................................3-141
Your CDs .................................................3-141
Center Console Storage Area...........................2-42
Chains, Tire...................................................5-77
Check
Engine Light...............................................3-47
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-108
Child Restraints
Child Restraint Systems...............................1-36
Infants and Young Children...........................1-33
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Page 462 of 472

D
Daytime Running Lamps..................................3-16
Defensive Driving............................................. 4-2
Delayed Entry Lighting.....................................3-19
Delayed Exit Lighting.......................................3-19
Delayed Locking.............................................2-11
Displacement on Demand™ (DoD™).................2-25
Doing Your Own Service Work........................... 5-4
Door
Delayed Locking..........................................2-11
Locks........................................................2-10
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-12
Rear Door Security Locks.............................2-12
Driver
Position, Safety Belt.....................................1-16
Six-Way Power Seat...................................... 1-2
Driver Information Center (DIC).........................3-52
DIC Controls and Displays....................3-52, 3-60
DIC Warnings and Messages........................3-72
Driving
At Night.....................................................4-19
City...........................................................4-22
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-23
Hill and Mountain Roads..............................4-26
In Rain and on Wet Roads...........................4-20Driving (cont.)
Rocking Your Vehicle to Get it Out.................4-33
Winter........................................................4-28
Dual Automatic Climate Control System.............3-29
E
Electrical System
Add-On Equipment.....................................5-111
Fuses and Circuit Breakers.........................5-112
Headlamp Wiring.......................................5-111
Instrument Panel Fuse Block.......................5-112
Power Windows and Other Power Options....5-111
Underhood Fuse Block...............................5-114
Windshield Wiper Fuses.............................5-111
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-45
Check and Service Engine Soon Light............3-47
Coolant......................................................5-25
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-46
Coolant Temperature Warning Light................3-46
Engine Compartment Overview......................5-12
Exhaust.....................................................2-33
Oil .............................................................5-16
Oil Life System...........................................5-19
Overheated Protection Operating Mode...........5-30
4

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