1993 CADILLAC DEVILLE service

Downloaded from www.Manualslib.com manuals search engine When one of the warning lights comes on and stays on when you are
driving, check the section that tells you what to do about it. Pkase
follow
the manual’s advice. Waiting to do repairs can be costly -- and even
dangerous.
So please get to know your warning lights. They’re a big help.
Brake System Warning Light
Your Cadillac’s hydraulic brake system is divided into two parts. If one
part isn’t working, the other part can still work and stop you. For good
braking, though,
you need both parts working well.
If the warning light goes on, there could be a brake problem. Have your
brake system inspected right away.
This light shoula
come
on and turn off 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.)
121

Downloaded from www.Manualslib.com manuals search engine A CAUTION:
I
Your brake system may not be working properly if the brake
warning light is on. Driving with the brake warning light
on can I
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. 1’
Anti-Lock Brake System Warning Light
With anti-lock, this light will go on when you start your engine and may
stay on for several seconds or
so. 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.
If the light stays on or comes on when you’re driving, stop as soon
as
possible and turn the key off. Then start the engine to reset the system. If
the light still stays on, or comes on again while you’re driving, your
Cadillac needs service. Unless the regular brake system warning light is
also
on, you will still have brakes, but not 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
I-
I-
.-.
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122

Downloaded from www.Manualslib.com manuals search engine - tire. If the warning light stays on after you replace the compact spare with
a full-size tire, or if it comes
on again when you’re driving, your Cadillac
needs service.
Traction Control System Warning Light (Option)
WER
When your traction
control system
is
working, the message
“TRACTION
ACTIVE”
will appear
in your information
center. This means
that slippery road
conditions may exist.
The “TRACTION
OFF” warning light
means that the system
is not working. This
warning light may
come on for the
following reasons:
If your transaxle overheats, the traction control system automatically
shuts
off for about three minutes. The warning light will come on and
stay on during that time.
If your brakes overheat, the traction control system will shut off and
the warning light
will come on until your brakes cool down.

Downloaded from www.Manualslib.com manuals search engine ‘f the “TRACTION OFF” warning light comes on and stays on for an
:&ended
period of time, your vehicle needs service.
A CAUTION:
If you let your tires spin at high speed when the “TRACTION
OFF” warning light is on, they can explode and you or others
could be injured. And, spinning your tires with the “TRACTION
OFF’’ warning light on can cause the transaxle to overheat or
can cause other problems. That could cause an engine fire or
other damage. When you’re stuck, spin the wheels as little as
possible. Don’t spin the wheels above
35 mph (55 km/h) as
shown
on the speedometer.
-.
I,
YOTICE: I-
Spinning your wheels when the “TRACTION OFF” warning 7
light is on can destroy parts of your vehicle as well as the tir ,
If you spin your wheels too fast while shifting your transaxlf
back
and forth, you can destroy your transaxle. when you’rt
-tuck, spin the wheels
as little as possible.
c
-.
I,
124

Downloaded from www.Manualslib.com manuals search engine HOT COOLANT CAN BURN YOU BADLY!
In “Problems on the Road,” this manual shows what to do. See “Engine
Overheating” in the Index.
L
P
I
Charge Light
When you turn the key
to “Run,” this light will
come on briefly, to
show that your
alternator and battery
charging systems are
working.
If a light stays on, you need service, and you should take your Cadillac to
the dealer at once.
To save your battery until you get there, turn off all
accessories, and set your Electronic Climate Control system to “OFF.”
Service Engine SoonlService Vehicle Soon Lights
KGf NE
I I,
ZVICE
VEHICLE
So(
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..

Downloaded from www.Manualslib.com manuals search engine 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.
m
.-
Oil Light
This light tells you if
there could be a
problem with your
engine
oil pressure.
The light goes on when you turn your key to “Run” or
“START” It goes
off once you have started your engine. That’s just a check to be sure the
light works. If it doesn’t, be sure
to have it fixed so it will be there to warn
you if something goes wrong.
When this light comes on and stavs on, it means
oil isn’t going through
your engine properly. You could be
low on oil, or you might have some
other oil problem.
I:

Downloaded from www.Manualslib.com manuals search engine r
A CAUTION:
Don’t keep driving if the oil pressure is low. If you do, your
engine can become
so hot that it catches fire. You or others
could be burned. Check your oil
as soon as possible and have
your vehicle serviced.
JOTICE:
Damage to your engin %om ne! cte probl
costly and
is not covered by your warranty.
Change Oil Soon Light
This light will come on
for a few seconds as a
bulb check when you
first start your engine.
IS cal
The light will also come on following engine start up for
20 seconds when
either the oil life percentage
is less the 10% or 7500 miles (12500 km)
have been driven. This is a reminder that it is time to change your oil. See -
the Index under “Oil Life Indicator” for more information on this system.
128

Downloaded from www.Manualslib.com manuals search engine - Service Air Cond Light
You’ll find this light here:
FORMATION CENTE
iERVICE
__ If it ever stays on for 29 seconds or more, you need service. It comes on
for a few seconds, just as a bulb check whenever you turn your ignition to
“ Run. ”
__
SERWCE SSS Light
bRMATION CEP
When you first start
your car, the
“SERVICE SSS” light
will come on as a bulb
check and a system
self-check for a
few
seconds.
If this light comes
on and stays while driving, you have a problem with the
Speed Sensitive Suspension or the Speed Sensitive Steering system. See
your Cadillac dealer for the proper service
of this system.
129