1993 CHEVROLET SUBURBAN warning

Features & Controls
Do not operate the engine with the tachometer in the red area, or engine
damage may occur.
Damage
to your engine or vehicle caused by operating the engine in the
red area isn’t covered by your vehicle warranty.
Warning Lights, Gages and lndicafors
This part describes the warning lights and gages that are on \
your vehicle.
The pictures will help you locate them.
Warning lights and gages can signal that something is wrong be\
fore it
becomes serious enough
to cause an expensive repair or replacement. Paying
attention to your warning lights and gages could also save you or others from
injury.
Warning lights go on when there may be or is a problem with one of your
vehicle’s functions.
As you will see in the details on the next few pages,
some warning lights come on briefly when you turn the ignition\
key just
to let
you know they’re working.
If you are familiar with this part, you should not be
alarmed when this happens.
Gages can indicate when there may be
or is a problem with one of your
vehicle’s functions. Often gages and warning lights work together to let you
know when there’s
a problem with your vehicle.
When one of the warning lights comes on and stays on when you are
driving, or when one of the gages shows there may be a problem, check the
part that tells you what to
do about it. Please follow the manual’s advice.
Waiting
to do repairs can be costly-and even dangerous. So please get to
know your warning lights and gages. They’re a big help.
2-68
ProCarManuals.com

Brake System Warning Light
BRAKE
-
K2325
Your vehicle’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 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 it 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 may 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 CAUTION
I A Your brake system may not be working properly if the brake warning
b light is on. Driving with the brake warning light on can lead to an
I accident. If the light is still on after you’ve pulled off the road and
stopped carefully,
have the vehicle towed for service. I
2-69
ProCarManuals.com

Featums & Contmls
Anti-Lock Brake System Warning Light
I
PB005
With anti-lock, this light will go on when you start your eng\
ine 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, your vehicle 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 section.
2-70
ProCarManuals.com

CHECK GAGES Light
This light will come on briefly when you are statling the engine. If the light
comes on and stays on while you are driving, it could indicate a problem with
your vehicle. Check your various gages to see if they are in the warning
zones.
C “5 XK
GAGES
K2330
Daytime Running Lights (DRL) Indicator tight (Canada Only)
K2318
If your vehicle was first sold, when new, in Canada, you will have this green
light on the instrument panel. It will light,
just above the speedometer,
whenever the Daytime Running Lights are on. For more details a\
bout
DRL,
see “Headlights and Vehicle Lighting’’ in this section.
2-73
ProCarManuals.com

A reading in the low pressure zone may be caused by a dangerouslv low oil
level or other problem causing low oil pressure. Check your oi\
l as soon as
possible.
CAUTION
Don’t keep driving if the oil pressure is low. If you do, your engine
can become so hot that it catches on fire, You or others could be
burned. Check your oil as soon as possible and have your vehicle
serviced.
e NOTICE
I
Damage to your engine from neglected oil problems can rnstly at,,
not covered by your ‘Avanty.
I
Voltmeter
Standard Cluster
14
Tachometer Cluster
19
GL
K2336
When your engine is not running, but the ignition is on (in \
the Run position),
this gage
shows your battery’s state of charge in DC volts. When the engine
is running, the gage shows the condition
of the charging system. Readings
between the low and high warning zones indicate the normal ope\
rating range.
Readings in either warning zone indicate a possible problem in \
the electrical
system.
2-79
ProCarManuals.com

Features & Controls
You can only drive for a short time with the reading in either warning zone. If
you must drive, turn off all unnecessary accessories, and have the vehicle
serviced as soon
as possible.
Convenience Net
CAUTION
A
An improperly stored convenience net could be thrown about the
vehicle during a collision
or sudden maneuver. You or others could
be injured. When you are done using the convenience net, always
store it in its original storage pouch,
and securely reattach the pouch
on the rear side of the spare tire cover.
I
PO22
If you have the optional luggage carrier, you can load things on top of your
vehicle. The luggage carrier has slats and side rails attached \
to the roof, and
cross rails which can be moved fore and aft in the side rail\
s to help secure
cargo. Tie the load to the side rails or side rail supports. Use the cross rails
mostly for fore and aft stops.
2-80
ProCarManuals.com

Your Driving and the Road
Road Signs
The road signs you see everywhere are coded by color, shape a\
nd symbol. It’s a
good idea to know these codes so that you can quickly grasp the basic
meaning
or intent of the sign even before you have a chance to read it.
Color of Road Signs
I
n
rD0 NOT1
rn
WRONG
AM402001
RED means STOP. It may also indicate that some movement is not allowed.
Examples are
DO NOT ENTER and WRONG WAY.
RAIL1 4D
ADVANCE
CROSSING NO PASSING
ZONE
NARROW
BRIDGE
AM402002
YELLOW
indicates a general warning. Slow down and be careful when you
see a yellow sign. It
may signal a railroad crossing ahead, a no passing
zone, or some other potentially dangerous situation. Likewise, a\
yellow
solid
line painted on the road means “Don’t Cross.”
4-2
ProCarManuals.com

AM402008
A DIAMOND-shaped sign is a warning of something ahead-for example, the
end
of a divided highway, a curve, steep hill, soft shoulder, or a narrow
bridge.
AM402009
A TRIANGLE pointed downward, indicates YIELD. It assigns the right\
-of-way
to traffic on certain approaches to an intersection.
AM402010
A TRIANGULAR sign also is used on two-lane roads to indicate a NO
PASSING ZONE. This sign will be on the left side of the roadway.
4-5
ProCarManuals.com