See also:

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. ...

Smooth, quiet ride
But most people won't get out into the wild with the Unlimited and they'll enjoy it just the same on the highway. Jeep added a few acoustic improvements to make the ride quieter, though those are ...

3.6L Engine
This engine is designed to meet all emissions regulations and provide excellent fuel economy and performance when using high-quality unleaded “regular” gasoline having an octane rating o ...