Onboard Diagnostic System — OBD II
Your vehicle is equipped with a sophisticated onboard diagnostic system called OBD II. This system monitors the performance of the emissions, engine, and automatic transmission control systems. When these systems are operating properly, your vehicle will provide excellent performance and fuel economy, as well as engine emissions well within current government regulations.
If any of these systems require service, the OBD II system will turn on the “Malfunction Indicator Light (MIL).” It will also store diagnostic codes and other information to assist your service technician in making repairs. Although your vehicle will usually be drivable and not need towing, see your authorized dealer for service as soon as possible.
CAUTION!
• Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions
tests can be performed.
• If the MIL is flashing while the engine is running, severe catalytic converter damage and power loss will soon occur. Immediate service is required.
See also:
Transmissions
The A580 automatic transmission benefits Jeep Wrangler as much as the new
petrol engine, with more refined shifting and gear selection. By increasing the
number of speeds, the transmission allows ...
Auto-Down Feature
The driver’s and front passenger’s (if equipped for passenger
side) power window switches have an “Auto-
Down” feature. Press the window switch past the first
detent, release, and the wi ...
TIME Button (Auxiliary Mode)
Press this button to change the display to time of day. The
time of day will display for five seconds (when the
ignition is OFF). ...


