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:

Average Fuel Economy / Distance To Empty (DTE) / Elapsed Time
• Average Fuel Economy Shows the average fuel economy since the last reset. When the fuel economy is reset, the digits will go blank while the history information is erased. The averaging will r ...

Fuel System Cautions
CAUTION! Follow these guidelines to maintain your vehicle’s performance: • The use of leaded gasoline is prohibited by Federal law. Using leaded gasoline can impair engine performance, and dam ...

Language Selection
To change the language that the Uconnect™ Phone is using: • Press the button to begin. • After the “Ready” prompt and the following beep, say the name of the language you wish to swit ...