brakes Oldsmobile Achieva 1998 Owner's Manuals

Vehicle Symbols
These are some of the symbols you may find on your vehicle.
For example,
these symbols are used on an
original battery:
POSSIBLE A
CAUTION
INJURY
PROTECT EYES BY
SHIELDING
CAUSTIC
BATTERY
CAUSE
BURNS
ACID COULD
&
AVOID
SPARKS
OR
FLAMES
SPARK
OR ,\I/,
COULD FLAME
EXPLODE BATTERY
These symbols are important
for you and
your passengers
whenever your
vehicle is
driven:
DOOR LOCK
UNLOCK
FASTEN SEAT
BELTS
POWER
WINDOW
These symbols have to
do with
your lamps:
SIGNALS e
TURN
PAEJN&
pf
WARNING A
HAZARD
FLASHER
RUNNING
.‘:**o
DAYTIME LAMPS
***
FOG LAMPS # 0
These symbols are. on some
of
your controls:
WINDSHIELD
WIPER
WINDSHIELD DEFROSTER
WINDOW
DEFOGGER
VENTILATING FAN
These symbols are used on
warning and
indicator lights:
COOLANT F-
TEMP -
CHARGING BAllERY
SYSTEM
BRAKE
(a)
COOLANT
ENGINE OIL
PRESSURE
Wb
ANTI-LOCK (@)
BRAKES
Here are some
other symbols
you may see:
FUSE
I
LIGHTER
HORN
)b.
SPEAKER
b
FUEL p3
V

SECOND (2): This position gives you more power but
lower fuel economy. You can
use SECOND (2) on hills.
It can help control your speed
as you go down steep
mountain roads, but then you would also want to use
your brakes
off and on.
NOTICE:
Don’t drive in SECOND (2) for more than
25 miles (41 km), or at speeds over 55 mph
(88 km/h), or you can damage your transaxle.
Use AUTOMATIC OVERDRIVE
(@) or
THIRD
(3) as much as possible. Don’t shift
into
SECOND (2) unless you are going slower
than
65 mph (105 km/h) or you can damage
your engine.
With an automatic overdrive transaxle,
SECOND (2)
will select either first or second gear depending on
vehicle speed.
If your vehicle is slowing, the transaxle
will downshift to first gear at
20 to 25 miles per hour
(32 to 40 km/h) for engine braking. You may notice
some variation in shift speed in SECOND
(2) when
accelerating
or braking. FIRST
(1): This
position gives you even more power
(but lower fuel economy) than SECOND
(2). You
can use it
on very steep hills, or in deep snow or mud.
If the selector lever is put in FIRST (I), the transaxle
won’t shift into first gear until the vehicle is going
slowly enough.
NOTICE:
If your front wheels can’t rotate, don’t try to
drive. This might happen if you were stuck in
very deep sand or mud or were up against
a
solid object. You can damage your transaxle.
Also, if you stop when going uphill, don’t hold
your vehicle there with only the accelerator
pedal. This could overheat and damage the
transaxle. Use your brakes or shift into PARK
(P)
to hold your vehicle in position on a hill.
2-22

Parking Brake
To set the parking brake,
hold the regular brake pedal
down with your right
foot.
Push down the parking
brake pedal with your left
foot. If the ignition is on,
the brake system warning
light will come on.
To release
the parking
brake, hold the regular
brake pedal down. Pull the
BRAKE RELEASE lever.
NOTICE:
Driving with the parking brake on can cause
your rear brakes to overheat.
You may have to
replace them, and you could also damage other
parts
of your vehicle.
If you are towing a trailer and are parking on a hill, see
“Towing a Trailer” in the Index. That section shows
what to do first
to keep the trailer from moving.
2-23

Anti-Lock Brake System Warning Light
With the anti-lock brake
system,
this light will
come on when you start
your engine and it will
stay on for three seconds.
That’s normal.
Enhanced Traction System Warning Light
(If Equipped)
ETS
OFF
With the Enhanced Traction
System (ETS),
this warning
light should come on briefly
as you start the engine.
If the light stays on, turn the ignition to
OFF. Or, if the
light comes on when you’re driving, stop as soon as
possible and turn the ignition
off. Then start the engine
again to reset the system.
If the light still stays on, or
comes on again while you’re driving, your vehicle needs
service.
If the regular brake system warning light isn’t
on, you still have brakes, but you don’t have anti-lock
brakes.
If the regular brake system warning light is also
on, you don’t have anti-lock brakes and there’s a
problem with your regular brakes. See “Brake System
Warning Light” earlier in this section.
The anti-lock brake system warning light should come
on briefly when you turn the ignition key to
RUN. If the
light doesn’t come on then, have it fixed
so it will be
ready to warn you
if there is a problem. If
the warning light doesn’t come on then, have it fixed
so it will be ready to warn you if there’s a problem.
If the warning light stays on, or comes on when you’re
driving, there may be a problem with your Enhanced
Traction System and your vehicle may need service.
When this warning light is on, the system will not limit
wheel spin. Adjust your driving accordingly.
The Enhanced Traction System warning light may come
on for the following reasons:
0 If you turn the system off by pressing the button the
warning light will come on and stay on. To turn the
system back on, press the button again. The warning
light should go
off. (See “Enhanced Traction
System” in the Index for more information.)
2-53

Control of a Vehicle Braking
You have three systems that make your vehicle go where Braking action involves perception time and
you want it to
go. They are the brakes, the steering and reaction time.
the accelerator, All three systems have to do theirwork
at the places where the tires meet the road. First, you have to decide
to push on the brake pedal.
That’s
perception time. Then you have to bring up your
foot and do it. That’s
reaction time.
Average reaction time is about 3/4 of a second. But
that’s only an average. It might be less with
one driver
and as long as two or three seconds or more with
another. Age, physical condition, alertness, coordination
and eyesight all play a part.
So do alcohol, drugs and
frustration. But even in
3/4 of a second, a vehicle
moving at
60 mph (100 km/h) travels 66 feet (20 m).
That could be a lot
of distance in an emergency, so
keeping enough space between your vehicle and others
is important.
And, of course, actual stopping distances vary greatly
with the surface of the road (whether it’s pavement or
gravel); the condition
of the road (wet, dry, icy); tire
tread; the condition of your brakes; the weight of the
vehicle and the amount
of brake force applied.
Sometimes, as when you’re driving on snow or ice, it’s
easy to ask more
of those control systems than the tires
and road can provide. That means you can lose control
of your vehicle.
4-6

Avoid needless heavy braking. Some people drive in
spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic. This is a
mistake. Your brakes may not have time to cool between
hard stops. Your brakes will wear out much faster if you
do a lot of heavy braking. If you keep pace with the
traffic and allow realistic following distances, you will
eliminate a lot of unnecessary braking. That means
better braking and longer brake life.
If your engine ever stops while you’re driving, brake
normally but don’t pump your brakes.
If you do, the
pedal may get harder to push down. If your engine
stops, you will still have some power brake assist. But
you will use it when you brake. Once the power assist
is
used up, it may take longer to stop and the brake pedal
will be harder to push.
Anti-Lock Brakes (ABS)
Your vehicle has anti-lock brakes (ABS). ABS is an
advanced electronic braking system that will help
prevent a braking skid.
When you start your engine, or when you begin to drive
away, your anti-lock brake system will check itself. You
may hear a momentary motor or clicking noise while
this test is going on, and you may even notice that your
brake pedal moves or pulses a little. This is normal.
If there’s a problem with the
anti-lock brake system, this
warning light will stay on.
See “Anti-Lock Brake
System Warning Light” in
the Index.

Here’s how anti-lock works. Let’s say the road is wet.
You’re driving safely. Suddenly an animal jumps out in
front
of you.
You slam
on the brakes. Here’s what happens with ABS.
A computer senses that wheels are slowing down. If one
of the wheels is about to stop rolling, the computer will
separately work the brakes at each front wheel and at
both rear wheels. The
anti-lock system can change the brake pressure faster
than any driver could. The computer is programmed to
make the most of available tire and road conditions.
You can steer around the obstacle while braking hard.
As you brake, your computer keeps receiving updates on
wheel speed and controls braking pressure accordingly.
4-8

Remember: Anti-lock doesn’t change the time you need
to get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle in
front of you, you won’t have time to apply your brakes
if that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you have
anti-lock brakes.
Using Anti-Lock
Don’t pump the brakes. Just hold the brake pedal down
firmly and let anti-lock work for you. You may feel a
slight brake pedal pulsation or notice some noise, but
this is normal.
Enhanced Traction System
If your vehicle has the optional four-speed automatic
transaxle, it also has an Enhanced Traction System
(ETS) that limits wheel spin. This
is especially useful in
slippery road conditions. The system operates only if it
senses that one
or both of the front wheels are spinning
or beginning to lose traction. When this happens, the
system reduces engine power and may also upshift
the
transaxle to limit wheel spin.
LOW
TRAC
This light will come on
when your Enhanced
Traction System is limiting
wheel spin. See “Enhanced
Traction System Active
Light” in the Index.
You may feel or hear the system working, but this is normal.
The Enhanced Traction System operates in all transaxle
shift lever positions. But the system can upshift the
transaxle only as high as the shift lever position you’ve
chosen,
so you should use the lower gears only when
necessary. See “Automatic Transaxle” in the Index.
31 When the system is on and
ETS
OFF
the parking brake is fully
released, this warning light
will come on
to let you
know if there’s a problem
with the system.
See “Enhanced Traction System Warning Light’’ in the
Index. When this warning light is on, the system will not
limit wheel spin. Adjust your driving accordingly.
4-9

Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves. The
traction of the tires against the road surface makes it
possible for the vehicle to change its path when you
turn
the front wheels. If there’s no traction, inertia will keep
the vehicle going in the same direction. If you’ve ever
tried to steer a vehicle on
wet ice, you’ll understand this.
The traction you can get in a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While you’re
in a curve, speed is the one factor you can control.
Suppose you’re steering through a sharp curve. Then you
suddenly accelerate. Both control systems
-- steering and
acceleration
-- have to do their work where the tires meet
the road. Adding the sudden acceleration can demand too much of those places. You can lose control. Refer to
“Enhanced Traction System” in the Index.
What should you do if this ever happens? Ease up on the
accelerator pedal, steer the vehicle the way you want it
to go, and slow down.
Speed limit signs near curves warn that you should
adjust your speed. Of course, the posted speeds are
based on good weather and road conditions. Under less
favorable conditions you’ll want to go slower. If you need to
reduce your speed as you approach a
curve, do it before you enter the curve, while your front
wheels are straight ahead.
Try to adjust your speed
so you can “drive” through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until you are out of the curve, and then
accelerate gently into the straightaway.
Steering in Emergencies
There are times when steering can be more effective
than braking. For example, you come over a hill and
find a truck stopped in your lane, or a car suddenly pulls
out from nowhere, or a child darts out from between
parked cars and stops right in front of you. You can
avoid these problems by braking
-- if you can stop in
time. But sometimes you can’t; there isn’t room.
That’s the time for evasive action
-- steering around
the problem.
Your vehicle can perform very well in emergencies like
these. First apply your brakes. (See “Braking in
Emergencies” earlier
in this section.) It is better to
remove as much speed as you can from a possible
collision. Then steer around
the problem, to the left or
right depending on the space available.
4-11

a
a
a
a
Check your mirrors, glance over your shoulder, and
start your left lane change signal before moving out
of the right lane to pass. When you are far enough
ahead of the passed vehicle to see its front in your
inside mirror, activate your right lane change signal
and move back into the right lane. (Remember that
your right outside mirror is convex. The vehicle you
just passed may seem to be farther away from you
than it really is.)
Try not to pass more than one vehicle at a time
on two-lane roads. Reconsider before passing the
next vehicle.
Don’t overtake a slowly moving vehicle too rapidly.
Even though the brake lamps are not flashing, it may
be slowing down or starting to turn.
If you’re being passed, make it easy for the
following driver to get ahead of you. Perhaps you
can ease a little to the right.
Loss of Control
Let’s review what driving experts say about what
happens when the three control systems (brakes, steering
and acceleration) don’t have enough friction where the
tires meet the road to do what the driver has asked.
In any emergency, don’t give up. Keep trying to steer ana
constantly seek an escape route
or area of less danger.
Skidding
In a skid, a driver can lose control of the vehicle.
Defensive drivers avoid most skids by taking reasonable
care suited to existing conditions, and by not “overdriving”
those conditions. But skids are always possible.
The three types of skids correspond to your vehicle’s
three control systems. In the braking skid, your wheels
aren’t rolling. In the steering or cornering skid, too
much speed or steering in a curve causes tires to slip and
lose cornering force. And in the acceleration skid, too
much throttle causes the driving wheels to spin.
A cornering skid is best handled by easing your foot off
the accelerator pedal.
If you have the Enhanced Traction System, remember: It
helps avoid only the acceleration skid.
If you do not have the Enhanced Traction System, or if
the system is off, then an acceleration skid is also best
handled by easing your foot off the accelerator pedal.
4-14