Instrument cluster descriptions – Jeep 2012 Grand Cherokee SRT - Owner Manual User Manual

Page 281

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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 autho-
rized dealer as soon as possible. Refer to “Occupant
Restraints” 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 system called OBD II that
monitors engine 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 condition 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 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.

4

UNDERSTANDING YOUR INSTRUMENT PANEL

279

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