2003 PONTIAC BONNEVILLE check engine light

Will you have to make any holes in the body of
your vehicle when you install a trailer hitch?
If
you do, then be sure to seal the holes later when
you remove the hitch.
If you don’t seal them, deadly
carbon monoxide (CO) from your exhaust can get
into your vehicle. See
Engine Exhaust on
page 2-36. Dirt and water can also enter the
vehicle.
Safety Chains
You should always attach chains between your vehicle
and your trailer. Cross the safety chains under the
tongue of the trailer
so that the tongue will not drop to
the road
if it becomes separated from the hitch.
Instructions about safety chains may be provided by the
hitch manufacturer or by the trailer manufacturer.
Follow the manufacturer’s recommendation for attaching
safety chains and do not attach them to the bumper.
Always leave just enough slack
so you can turn
with your rig. And, never allow safety chains to drag on
the ground.
Trailer Brakes
Does your trailer have its own brakes? Be sure to read
and follow the instructions for the trailer brakes
so
you’ll be able to install, adjust and maintain them
properly. Because you have
anti-lock brakes, do not try to tap
into your vehicles brake system.
If you do, both
brake systems won’t work well, or at all.
Trailer Wiring Harness
All of the electrical circuits required for your trailer
lighting system can be accessed at the driver’s side rear
lamp connector. This connector is located under the
carpet on the rear corner of your trunk compartment.
Driving with a Trailer
Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you’ll want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight of the trailer.
And always keep in mind that the vehicle you are
driving is now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, tires and mirror aajustment.
ii tne rraiier nas
electric brakes, start your vehicle and trailer moving and
then apply the trailer brake controller by hand to be
sure the brakes are working. This lets you check your
electrical connection at the same time.
Oiiriiig your trip, check occasicfially tc be sure that the
load is secure, and that the lamps and any trailer
brakes are still working.
4-39

A. Engine Compartment Fuse Block
B. Windshield Washer Fluid Reservoir
C. Engine Coolant Recovery Tank
D. Radiator Pressure Cap
E. Power Steering Fluid Reservoir
F. Engine Oil Dipstick
G. Engine Oil Fill Cap
H. Automatic Transaxle Fluid Dipstick
I. Brake Master Cylinder
J. Engine Air Cleaner/Filter
Engine Oil
WCHECK
OIL LEVEL
If the OIL LEVEL LOW
message appears
on the
DIC, or the CHECK
OIL LEVEL light appears
on the instrument cluster, it
means
YOU need to
check your engine oil level
right away.
For more information, see
Check Oil Level Light on
page
3-50 or DIG Warnings and Messages on
page 3-60.
You should check your engine oil level regularly; this is
an added reminder.
5-1 5

How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind of transaxle fluid
to use. See Part D:
Recommended Fluids and Lubricants on page 6-24.
If the fluid level is low, add only enough of the proper
fluid
to bring the level into the cross-hatched area on the
dipstick.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough fluid at the
dipstick hole
to bring it to the proper level.
It doesn’t take much fluid, generally less than one
pint
(0.5 L). Don’t overfill.
Notice: We recommend you use only fluid labeled
DEXRON@-Ill, because fluid with that label is
made especially for your automatic transaxle.
Damage caused by fluid other than DEXRON@-Ill
is
not covered by your new vehicle warranty.
3. After adding fluid, recheck the fluid level as
described under “How to Check,” earlier in this
section.
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 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, see
Engine Overheating on
page
5-29.
A 50/50 mixture of clean, drinkable water and
DEX-COOL@ 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.
4. When the correct fluid level is obtained, push the
dipstick back
in all the way.
5-26

Notice: Ignoring these steps could result in costly
damage to your vehicle that wouldn’t be covered
by your warranty.
Trying to start your vehicle by pushing or pulling
it
won’t work, and it could damage your vehicle.
1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
Notice:
If the other system isn’t a 12-volt system
with a negative ground, both vehicles can be damaged.
2. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles aren’t touching
each other.
If they are, it could cause a ground
connection you don’t want. You wouldn’t be able to
start your vehicle, and the bad grounding could
damage the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles involved in
the jump start procedure. Put an automatic
transaxle in PARK (P) or a manual transmission in
NEUTRAL (N) before setting the parking brake. Notice:
If you
leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or in the accessory power outlet. Turn
off
the radio and all lamps that aren’t needed. This will
avoid sparks and help save both batteries. And it
could save your radio!
4. Open the hood on the other vehicle and locate the
positive
(+) and the negative (-) terminal locations
on that vehicle.
Open the hood on your vehicle and find the remote
positive
(+) terminal located in the engine
compartment
on the passenger side of the vehicle.
See
Engine Compartment Overview on page 5-14
for more information on location.
5-47

Changing Your Zone Number ............................ 3-69
Check Engine Light
............................................... 3-46
Tire Pressure System
................................... 5-64
Gages Warning Light
................................... 3-51
Checking Coolant
......................................... 5-28
Checking Engine Oil
...................... ... 5-16
Checking Things Under the Hood
.... ... 5-12
Checking Your Restraint Systems
...................... 1-56
Chemical Paint Spotting
................................... 5-88
Child Restraints Child Restraint Systems
............................... 1-33
Infants and Young Children
........................... 1-29
Lower Anchorages and Top Tethers for
Children (LATCH System)
.......................... 1-39
Older Children
............................................. 1-27
Securing a Child Restraint Designed for the
LATCH System
........................................ 1-41
Securing a Child Restraint in a Rear Seat
Position
.................................................. 1-41
Securing a Child Restraint in the Right Front
Seat Position
........................................... 1-44
IU~J duap ........................................ ... 1 3?
Top Strap Anchor Location ................. ... 1-38
Where to Put the Restraint
........................... 1-36
Chime Level Adjustment
................................. 3-101
Choosing Your Zone Number
............................ 3-69
Cleaning
-r-- C*" -.-
Cigarette Lighter ......................................... 3-24
Inside of Your Vehicle
.................................. 5-82 Cleaning
(cont.)
Outside of Your Vehicle
................................ 5-85
Underbody Maintenance
............................... 5-87
Weatherstrips
.............................................. 5-85
Cleaning Exterior LampdLenses
.... ............ 5-85
Climate Control System
................................ 3-25
Automatic
................................................... 3-28
Climate Controls Personalization .................... 3-33
Outlet Adjustment
........................................ 3-32
Compact Disc Messages
................. 3-81, 3-93, 3-97
Compact Spare Tire
........................................ 5-81
Compass Accuracy
.......................................... 3-70
Compass, Electronic
........................................ 3-68
Console Shift Lever
......................................... 2-33
Content Theft-Deterrent
.................................... 2-22
Control
of a Vehicle .......................................... 4-6
Convenience Net
............................................ 2-46
Coolant Engine Temperature Gage
............................ 3-45
Heater, Engine
............................................ 2-27
Cooling System
.............................................. 5-32
Courtesy Lamps
............................................. 3-16
VIUIL)" VVII.,", ................................................ 3-!Q
Current and Past Model Order Forms ................ 7-10
Customer Assistance Information
Crl I;cn Cnntrnl
Courtesy Transportation .................................. 7-6
Customer Assistance for Text Telephone (TTY)
Users
....................................................... 7-3
Customer Assistance
Off ices ........................... 7-3
Customer Satisfaction Procedure
..................... 7-2
3

Electrical System Add-on Equipment
...................................... 5-91
Fuses and Circuit Breakers
........................... 5-92
Headlamp Wiring
......................................... 5-91
Power Windows and Other Power Options
...... 5-91
Removing the Rear Seat Cushion
.................. 5-95
Windshield Wiper Fuses
............................... 5-91
Electronic Compass
......................................... 3-68
Programs
................................................... 3-48
Air Cleaner/Filter
......................................... 5-22
Battery
....................................................... 5-44
Check and Service Engine Soon Light
............ 3-46
Coolant
...................................................... 5-26
Coolant Heater
............................................ 2-27
Coolant Temperature Gage
........................... 3-45
Cooling System Inspection
............................ 6-23
Engine Compartment Overview
...................... 5-1 4
Overheating
................................................ 5-29
Starting
...................................................... 2-26
Supercharger Oil
......................................... 5-21
Engine Cooling When Trailer Towing
.................. 4-42
Emergency Trunk Release Handle
..................... 2-18
Emissions Inspection and Maintenance
Engine
Exhaust
..................................................... 2-36
Oil ............................................................. 5-15
Engine Compartment Fuse Block ...................... 5-92
Engine Coolant Level Check
............................. 6-18 Engine
Oil Additives
......, .......................... 5-19
Entry Lighting
................................................. 3-17
Erasing HomeLink@ Buttons
.............................. 2-45
Exterior Lamps
............................................... 3-13
Exterior Lighting Battery Saver
............... ... 3-16
Engine
Oil Level Check
..... ...................... 6-18
Express-Down Window
.................................... 2-20
Extender, Safety Belt
....................................... 1-26
F
FabridCarpet .........................
Filter
............. ... 5-82
Engine Air Cleaner
...................................... 5-22
Finding a
PTY Station (RDS and XMTM) ..... 3-75, 3-85
Finding a Station
.................................... 3-73, 3-83
Finish Care
.................................................... 5-86
Finish Damage
............................................... 5-87
Flash-To-Pass
.................................................. 3-8
Flat Tire
........................................................ 5-72
Flat Tire, Changing
......................................... 5-73
!=!zid
Automatic Transaxle ..................................... 5-23
Power Steering
........................................... 5-40
Windshield Washer
...................................... 5-40
FM Stereo
..................................................... 3-99
Fog Lamps
.................................................... 3-15
Following Distance
.......................................... 4-40
Footnotes ................................................ 6-7, 6-13
5

Front Reading Lamps ...................................... 3-19
Front Storage Area
......................................... 2-46
Fuel
............................................................... 5-5
Additives ...................................................... 5-6
California Fuel
.............................................. 5-6
Filling a Portable Fuel Container
.................... 5-1 1
Filling Your Tank
........................................... 5-8
Fuels in Foreign Countries
.............................. 5-7
Gage ......................................................... 3-53
Gasoline Octane
........................................... 5-5
Gasoline Specifications .................................. 5-6
System Inspection
....................................... 6-22
Fuel Door Lock
.............................................. 5-10
Fuses Fuses and Circuit Breakers
........................... 5-92
Windshield Wiper
......................................... 5-91
G
Gage Boost
......................................................... 3-54
Check Gages Warning Light
.......................... 3-51
Engine Coolant Temperature
......................... 3-45
Fuel
.......................................................... 3-53
Oil Pressure
............................................... 3-49
Speedometer
.............................................. 3-38
Tachometer
................................................. 3-39
Voltmeter Gage
........................................... 3-41
Garage
Door Opener ....................................... 2-42 Gasoline
Octane
........................................................ 5-5
Specifications ............................................... 5-6
Gate Operator and Canadian Programming
........ 2-44
Glass Surfaces
............................................... 5-84
Glove
Box ..................................................... 2-46
GM Mobility Program for Persons with
Disabilities
................................................ 7-4
Hazard Warning Flashers ................................... 3-5
Head Restraints
............................................... 1-6
Headlamp Aiming
....................................................... 5-52
Headlamp High/Low-Beam Changer .................... 3-8
Headlamp Horizontal Aiming
............................. 5-54
Headlamp Vertical Aiming
................................. 5-54
Headlamp Wiring
............................................ 5-91
Headlamps
.................................................... 5-56
Bulb Replacement
....................................... 5-56
Front Turn Signal and Parking Lamps
............. 5-57
Halogen Bulbs ............................................ 5-56
Headlamps On Reminder
................................... 3-8
Head-Up Display (HUD)
................................... 3-21
Heated Seats
................................................... 1-4
Highway Hypnosis
........................................... 4-23
Hill and Mountain Roads
.................................. 4-24
Hitches
.......................................................... 4-38
6

HomeLink@ Transmitter. Programming ................ 2-43
HomeLink@ Transmitter
.................................... 2-42
Hood Checking Things Under
................................ 5-12
Release
..................................................... 5-1 3
Horn
............................................................... 3-6
How to Add Coolant to the Coolant
How to Add Coolant to the Radiator
.................. 5-36
How to Add Fluid
............................................ 5-26
How to Check
................................................ 5-24
How
to Check and Add Oil ............................... 5-22
How to Check Power Steering Fluid
.................. 5-40
How to Use This Manual
...................................... ii
How to Wear Safety Belts Properly ................... 1-12
Hydroplaning
.................................................. 4-1 9
Recovery Tank ............................................ 5-34 Infants
and Young Children. Restraints
............... 1-29
Inflation
.. Tire Pressure .................................. 5-62
Inspection Brake System
............................................. 6-23
Exhaust System
.......................................... 6-22
Fuel System
............................................... 6-22
Part C
- Periodic Maintenance ....................... 6-22
Steering, Suspension and Front Drive Axle
Boot and Seal
......................................... 6-22
Throttle System
........................................... 6-23
Cluster
....................................................... 3-35
Overview
..................................................... 3-4
Instrument Panel Brightness
............................. 3-16
Interior Lamps
................................................ 3-16
Interior Plastic Components
........................... 5-84
Engine Cooling
System
................................ 6-23
Instrument Panel
If No Steam Is Coming From Your Engine .......... 5-31 J
If Steam 1s Coming From Your Engine ............... 5-30 Jump Starting ............................ If the Light Is Flashing ..................................... 3-47 ... 5-46
.
If the Light Is On Steady ................................. 3-48
If You Are Stuck in Sand, Mud, Ice or Snow ....... 4-30
If You Do Decide To Pull A Trailer ..................... 4-37
If You’re Caught in a Blizzard ........................... 4-28 Key Lock Cylinders Service .......................... 6-19
Ignition Positions
............................................. 2-25 Key Fkminder Warning .................................... 2-26
Ignition Transaxle Lock Check
.......................... 6-21 Keyless Entry System ....................................... 2-5
K
Inadvertent Power Battery Saver .................... 3-20 Keys ............................................................... 2-3
7