BUICK RIVIERA 1993 Owners Manual

When the “LOW OIL LEVEL” light comes on you
should check your engine oil level and
fill if necessary.
See Engine Oil in the Index.
There are three ways the
LOW light can come on
briefly. Those
three are normal and don’t show a
problem. These three ways are:
1.
2.
3.
could be low on oil, or you might have some other
oil problem.
CAUTION:
Don’t keep driving if the oil pressure is low. If
109

Volts Gage and Light
c 1
Tachometer
When you turn the key to “Run,” the “LOW’ light will The tachometer tells you how fast the engine is go\
ing. It
come on briefly, to show that your alternator and battery disp\
lays engine speed
in revolutions per minute (RPM).
charging systems are working. If a light stays on, you As engine speed increases, the bars light up on the
need service, and you should take your Buick to the tachometer\
display. Each bar represents
100 RPM. Do
dealer at once. To save your battery until you get there, not operate your car’\
s engine in the red line range. If
turn
off all accessories, and set your air system to you do, you can cause severe engine damage.
“OFF.”
110

Brake System Warning Light
1 Your Buick’s hydraulic
I two parts. If one part isn’t
~ working, the other part can
~ still work and stop you. For ’ good braking, though, you
brake system is divided
into
1 well.
need both parts working
If the
warning light goes on, there could be a brake
problem. Have your brake system inspected right away.
This light should come on as you start the vehicle. If it
doesn’t come on then, have it fixed
so it will be ready to
warn you if there’s a problem. This light will
also come
on when you set your parking
brake, and will stay on if your parking brake doesn’t
release fully. If it stays on after your parking brake
is
fully released, it means you have a brake problem. If the
light comes on while driving, pull
off the road and stop
carefully. You may notice that the pedal is harder to
push. Or, the pedal may
go closer to the floor. It may
take longer to stop. If the light is still on, have the
vehicle towed for service. (See “Towing Your Vehicle”
in the Index.)
I A CAUTION:
Your brake system may not be working properly
if the brake warning light is on. Driving with the
brake warning light on can lead
to an accident.
If the light is still on after you’ve pulled off the
road and stopped carefully, have the vehicle
towed for service.
I
111
i

Anti-Lock Brake System Warning Light
1
I’
i
If the light stays on or comes on when you’re driving,
stop as soon as possible and turn the key off. Then start
With anti-lock, this light the engine to reset the system.
If the light still stays on,
will go on when you start or comes on again while you’re driving, your Buick
your engine and may stay needs service. Unless the regular brake system’ warning
on for several seconds or light is also on, you will still have brakes, but not
so. anti-lock brakes.
If the regular brake system warning
light
is also on, see “Brake System Warning Light”
earlier in this part.
The anti-lock brake system warning light may also come on when you are driving with
a compact spare tire. If
this happens, the light means you won’t have anti-lock
until you replace the compact spare, with a full-size tire.
If the warning light stays on after you replace the
compact spare with
a full-si.ze tire, or if it comes on
again when you’re driving, your Buick needs service.
That’s normal.
If the light doesn’t come on, have it fixed
~ so it will be ready to warn you if there is a problem.
112

Engine Coolant Temperature Warning
Light and Gage Malfunction Indicator Lamp (Service
Engine Soon Light)
the engine off as soon as
possible.
HOT COOLANT CAN
BURN YOU BADLY!
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index. A computer monitors operation
of your fuel, ignition
and emission control systems. This light should come on when the ignition
is on, but the engine is not running, as
a check to show you it
is working. If it does not come on
at all, have it fixed right away. If it stays
on, or it comes
on while you are driving, the computer is indicating that
you have a problem. You should take your vehicle in for
service soon.
113

‘Electrical Problem Warning Light 3
This light will come on if
an elecpical problem has
been detected. Have your
vehicle inspected by your Buick dealer right away.
Door Ajar Light
“DOOR AJAR” will light
to
warn you that one of
your doors is not shut
completely
when you shift
out of PARK.

Hazard Warning Flasher Service A/C
- This light
on your
instrument panel lets you
know when you have the
hazard warning flashers
on.
When the hazard flashers are on, your turn signals will
not work.
If you apply the brakes, the flashing will stop
until’you release the brake pedal. See “Hazard Warning
Flashers” in the Index for more information.
If this light stays on 60
seconds or more, your air
conditioning system needs service. It comes
on as a
bulb cheek, whenever you
turn the ignition to “Run”.

Part 3 Comfort Controls & Audio Systems

your Bui& Comfort Control System Your Buick has.an Electronic Touch Climate Control,
This
part tells you how to make your air system work
:for you.
Fresh air
from outside your vehicle flows through you
Buick when the car is moving. When the vehicle is not
moving, you can get outside air to flow through by
selecting any
air choice (except the rear window
defogger) and the
HI fan speed. here's how' your system looks:
Air Outlets
Adjust
the direction of air flow by moving the louvered
vents.