2003 PONTIAC VIBE light

6-14
Engine Oil
If the engine oil pressure
light appears on the
instrument cluster, it means
you need to check your
engine oil level right away.
For more information, see
ªEngine Oil Pressure Lightº
in the Index.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
1.8L Code 8 engine shown,
1.8L Code L engine similar
The engine oil dipstick is located in the center of the
engine compartment. The dipstick handle is a yellow
loop. See ªEngine Compartment Overviewº in the Index
for more information on location.

6-31 Carrier Assembly-Differential
(Rear Drive Module)
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant and when to change it. See
ªScheduled Maintenance Servicesº in the Index.
How to Check Lubricant
To get an accurate reading, the vehicle should be on
a level surface.
If the level is below the bottom of the filler plug hole,
you'll need to add some lubricant. Add enough lubricant
to raise the level to the bottom of the filler plug hole. A
fluid loss could indicate a problem; check and have it
repaired, if needed.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See ªRecommended Fluids
and Lubricantsº in the Index.
Engine 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 ªEngine Overheatingº
in the Index.
A 50/50 mixture of clean, drinkable water and the
proper coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.

6-36
Windshield Washer Fluid
What to Use
When you need windshield washer fluid, be sure to read
the manufacturer's instructions before use. If you will be
operating your vehicle in an area where the temperature
may fall below freezing, use a fluid that has sufficient
protection against freezing. See ªEngine Compartment
Overviewº in the Index for reservoir location.
Adding Washer Fluid
The low windshield washer
fluid level warning light
will come on when the
fluid level is too low. See
ªLow Windshield Washer
Fluid Level Warning Lightº
in the Index.
Canada Only
The windshield washer
fluid reservoir is located
in the engine compartment
on the passenger's side of
the vehicle.
Open the cap with the
washer symbol on it.
Add washer fluid until
the tank is full.

6-38
So, it isn't a good idea to ªtop offº your brake fluid.
Adding brake fluid won't correct a leak. If you add fluid
when your linings are worn, then you'll have too much
fluid when you get new brake linings. You should add
(or remove) brake fluid, as necessary, only when work is
done on the brake hydraulic system.
CAUTION:
If you have too much brake fluid, it can spill on
the engine. The fluid will burn if the engine is hot
enough. You or others could be burned, and your
vehicle could be damaged. Add brake fluid only
when work is done on the brake hydraulic
system.
United States Canada
When your brake fluid falls to a low level, your brake
warning light will come on. See ªBrake System Warning
Lightº in the Index.

6-40 Brake Wear
The GT Series has four-wheel disc brakes. All other
models have front disc brakes and rear drum brakes.
Disc brake pads have built
-in wear indicators that
make a high
-pitched warning sound when the brake
pads are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the brake
pedal firmly).
CAUTION:
The brake wear warning sound means that soon
your brakes won't work well. That could lead to
an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
NOTICE:
Continuing to drive with worn-out brake pads
could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in the
proper sequence to GM torque specifications.
If you have rear drum brakes, they don't have wear
indicators, but if you ever hear a rear brake rubbing
noise, have the rear brake linings inspected immediately.
Also, the rear brake drums should be removed and
inspected each time the tires are removed for rotation or
changing. When you have the front brake pads replaced,
have the rear brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.
See ªBrake System Inspectionº in Section 7 of
this manual under Part C ªPeriodic Maintenance
Inspections.º

6-56 Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire
sidewall between tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires
by treadwear, traction and temperature performance.
(This applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter
-type snow
tires, space
-saver or temporary use spare tires, tires with
nominal rim diameters of 10 to 12 inches (25 to 30 cm),
or to some limited
-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements.Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course.
For example, a tire graded 150 would wear one and a
half (1 1/2) times as well on the government course
as a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart significantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
-- AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight
-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.

6-73
Fuse Usage
TAIL Front Parking Lamps, Taillamps,
License Plate Lamps, Instrument
Panel Lights, Engine Control
System
OBD On
-Board Diagnostic System
WIPER Windshield Wipers
AM2 Charging System, Air Bag System,
Starter System, Engine Control
STOP Stop Lamps, CHMSL, Engine
Control System, Anti
-lock Brakes,
Cruise Control
DOOR Power Door Locks, Liftglass Lock
AM1 Cigarette Lighter, Gauge,
ECU
-IG, Wiper, Rear Wiper,
Washer Fuses
ECU
-IG Cruise Control, Anti-Lock Brakes,
Theft Deterrent System,
Automatic Transaxle Control
System, Electric Cooling FanFuse Usage
RR WIPER Rear Window Wiper, Rear
Window Defogger
A/C Air Conditioning
INV Power Outlets
P/POINT Power Outlets
ECU
-B Daytime Running Lamps
CIG Cigarette Lighter, Power Rearview
Mirrors, Power Outlets, Audio
System, Automatic Transaxle
Control System
GAUGE Gauges and Meters, Back
-Up
Lamps, Charging System, Power
Door Locks, Power Windows,
Sunroof, Air Conditioning,
Cruise Control
WASHER Windshield Washers
*1 Engine Control System

6-74
Engine Compartment Fuse Block
This engine compartment fuse block is located in the
engine compartment on the driver's side of the vehicle
near the air cleaner. See ªEngine Compartment
Overviewº in the Index for more information on
location.Fuse/Relay Usage
HEAD MAIN Right Headlamp,
Left Headlamp Fuses
ALT
-S Charging System
EFI Electronic Fuel Injection System
HAZARD Turn Signal Lamps,
Emergency Flasher
HORN Horn
DOME Interior Lights, Gauges and
Meters, Audio System, Remote
Keyless Entry System
MAIN Starter System, AM2 Fuse
AMP Audio Amplifiers
MAYDAY Not Used