2005 PONTIAC BONNEVILLE engine

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 2-30if
necessary.
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 starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, your
vehicle needs 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 2-30if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to ON, 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), your vehicle needs service.
6-21

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.
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.
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.
6-22

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).You should let your dealer’s
service department do these jobs. Make sure any
necessary repairs are completed at once.
Proper procedures to perform these services may be
found in a service manual. SeeService Publications
Ordering Information on page 7-11.
Steering, Suspension and Front
Drive Axle Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chang, etc. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which
could cause a heat build-up in the oor pan or could let
exhaust fumes into the vehicle. SeeEngine Exhaust
on page 2-34.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
6-23

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number or specication may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM Goodwrench
oil meets all the requirements for
your vehicle. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on
page 5-16.
Engine
Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant (3.8L V6 Engine) on
page 5-31orEngine Coolant (4.6L
V8 Engine) on page 5-34.
Hydraulic
Brake SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Usage Fluid/Lubricant
Windshield
Washer
SolventGM Optikleen
®Washer Solvent.
Parking Brake
Cable GuidesChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242) or lubricant meeting
requirements of NLGI #2, Category
LB or GC-LB.
Power
Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 89021184, in Canada
89021186).
Automatic
TransaxleDEXRON
®-III Automatic
Transmission Fluid. Look for
“Approved for the H-Specication”
on the label.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Floor Shift
LinkageLubriplate Lubricant Aerosol (GM
Part No. U.S. 12346293, in Canada
992723) or lubricant meeting
requirements of NLGI #2, Category
LB or GC-LB.
6-25

Vehicle Data Collection and Event
Data Recorders
Your vehicle, like other modern motor vehicles, has a
number of sophisticated computer systems that monitor
and control several aspects of the vehicle’s performance.
Your vehicle uses on-board vehicle computers to monitor
emission control components to optimize fuel economy,
to monitor conditions for airbag deployment and, if so
equipped, to provide anti-lock braking and to help the
driver control the vehicle in difficult driving situations.
Some information may be stored during regular
operations to facilitate repair of detected malfunctions;
other information is stored only in a crash event by
computer systems, such as those commonly called event
data recorders (EDR).
In a crash event, computer systems, such as the Airbag
Sensing and Diagnostic Module (SDM) in your vehicle
may record information about the condition of the vehicle
and how it was operated, such as data related to
engine speed, brake application, throttle position, vehicle
speed, safety belt usage, airbag readiness, airbag
performance, and the severity of a collision. This
information has been used to improve vehicle crash
performance and may be used to improve crash
performance of future vehicles and driving safety. Unlike
the data recorders on many airplanes, these on-board
systems do not record sounds, such as conversation of
vehicle occupants.To read this information, special equipment is needed
and access to the vehicle or the device that stores
the data is required. GM will not access information
about a crash event or share it with others other than:with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the lessee,
in response to an official request of police or similar
government office,
as part of GM’s defense of litigation through the
discovery process, or
as required by law.
In addition, once GM collects or receives data, GM may:
use the data for GM research needs,
make it available for research where appropriate
condentiality is to be maintained and need is
shown, or
share summary data which is not tied to a specic
vehicle with non-GM organizations for research
purposes.
Others, such as law enforcement, may have access to
the special equipment that can read the information if
they have access to the vehicle or the device that stores
the data.
If your vehicle is equipped with OnStar
®, please check
the OnStar®subscription service agreement or manual
for information on its operations and data collection.
7-9

Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you’ll notify us.
Please call us at 1-800-762-2737, or write:
Pontiac Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for GM
transmissions, transaxles, and transfer cases.
Service Bulletins
Service Bulletins give technical service information
needed to knowledgeably service General Motors cars
and trucks. Each bulletin contains instructions to
assist in the diagnosis and service of your vehicle.
In Canada, information pertaining to Product Service
Bulletins can be obtained by contacting your General
Motors dealer or by calling 1-800-GM-DRIVE
(1-800-463-7483).
7-11

A
Accessory Inator...........................................5-91
Accessory Power Outlets.................................3-24
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-111
Air Cleaner/Filter, Engine.........................5-22, 5-23
Air Conditioning......................................3-25, 3-28
Airbag
Readiness Light..........................................3-38
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-47
How Does an Airbag Restrain?......................1-53
Servicing Your Airbag-Equipped Vehicle..........1-56
What Makes an Airbag Inate?......................1-53
What Will You See After an Airbag Inates?....1-54
When Should an Airbag Inate?....................1-52
Where Are the Airbags?...............................1-50
Antenna, Diversity Antenna System..................3-102
Antenna, XM™ Satellite Radio Antenna System . . . 3-103
Anti-Lock Brake System (ABS)........................... 4-6
Anti-Lock Brake, System Warning Light..............3-42
Appearance Care..........................................5-101
Aluminum or Chrome-Plated Wheels.............5-107
Care of Safety Belts...................................5-104
Chemical Paint Spotting..............................5-108
Cleaning Exterior Lamps/Lenses..................5-105
Fabric/Carpet............................................5-102
Finish Care...............................................5-106Appearance Care (cont.)
Finish Damage..........................................5-108
Glass Surfaces..........................................5-104
Instrument Panel........................................5-104
Interior Plastic Components.........................5-104
Leather....................................................5-104
Sheet Metal Damage..................................5-108
Tires........................................................5-107
Underbody Maintenance.............................5-108
Vehicle Care/Appearance Materials...............5-109
Vinyl........................................................5-103
Washing Your Vehicle.................................5-105
Weatherstrips............................................5-105
Windshield and Wiper Blades......................5-106
Ashtrays........................................................3-24
Audio System(s).............................................3-72
Audio Steering Wheel Controls......................3-99
Care of Your Cassette Tape Player...............3-101
Care of Your CD Player..............................3-102
Care of Your CDs......................................3-102
Chime Level Adjustment.............................3-103
Diversity Antenna System............................3-102
Radio with Cassette and CD.........................3-83
Radio with CD............................................3-73
Setting the Time..........................................3-72
Theft-Deterrent Feature................................3-99
Trunk-Mounted CD Changer..........................3-95
Understanding Radio Reception...................3-100
XM™ Satellite Radio Antenna System...........3-103
1

Automatic Climate Control System.....................3-28
Automatic Transaxle
Fluid..................................................5-25, 5-28
Operation...................................................2-27
B
Battery..........................................................5-57
Exterior Lighting Battery Saver......................3-17
Inadvertent Power Saver..............................3-21
Load Management.......................................3-20
Before Leaving on a Long Trip.........................4-21
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-30
System Inspection.......................................6-24
System Warning Light..................................3-41
Brakes..........................................................5-54
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-23
Bulb Replacement...........................................5-67
Front Turn Signal and Parking Lamps.............5-69
Halogen Bulbs............................................5-67
Headlamps.................................................5-68Bulb Replacement (cont.)
Replacement Bulbs......................................5-72
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-71
Buying New Tires...........................................5-86C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-121
Carbon Monoxide...................2-15, 2-34, 4-24, 4-36
Care of
Safety Belts..............................................5-104
Your Cassette Tape Player..........................3-101
Your CD Player.........................................3-102
Your CDs .................................................3-102
CD Changer, Trunk-Mounted............................3-95
Center Console Storage Area...........................2-45
Center Front Passenger Position, Safety Belts....1-20
Chains, Tire...................................................5-90
Check
Engine Light...............................................3-48
Gages Warning Light...................................3-54
Tire Pressure System...................................5-83
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-108
2