Jeep 2013 Grand Cherokee, Operating Information Manual

Page: 166 / 408

INSTRUMENT CLUSTER
DESCRIPTIONS
1. Tachometer
Indicates the engine speed in revolutions per
minute (RPM x 1000).
2. Air Bag Warning Light
This light will turn on for four to
eight seconds as a bulb check
when the ignition switch is first
turned to the ON/RUN position. If
the light is either not on during
starting, stays on, or turns on while driving, have
the system inspected at an authorized dealer as
soon as possible. Refer to “Occupant Re-
straints” in “Things To Know Before Starting
Your Vehicle” for further information.
3. Malfunction Indicator Light (MIL)
The Malfunction Indicator Light (MIL)
is part of an onboard diagnostic sys-
tem called OBD II that monitors en-
gine and automatic transmission con-
trol systems. The light will illuminate when the
key is in the ON/RUN position before engine
start. If the bulb does not come on when turning
the key from OFF to ON/RUN, have the condi-
tion checked promptly.
Certain conditions, such as a loose or missing
gas cap, poor fuel quality, etc., may illuminate
the light after engine start. The vehicle should
be serviced if the light stays on through several
of your typical driving cycles. In most situations,
the vehicle will drive normally and will not
require towing.
CAUTION!
Prolonged driving with the Malfunction Indi-
cator Light (MIL) on could cause damage to
the engine control system. It also could affect
fuel economy and drivability. If the MIL is
flashing, severe catalytic converter damage
and power loss will soon occur. Immediate
service is required.
WARNING!
A malfunctioning catalytic converter, as ref-
erenced above, can reach higher tempera-
tures than in normal operating conditions.
This can cause a fire if you drive slowly or
park over flammable substances such as dry
plants, wood, cardboard, etc. This could re-
sult in death or serious injury to the driver,
occupants or others.
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