Jeep Wrangler 2018-2026 Owners Manual / INTRODUCTION / Vehicle Modifications, Alterations

Jeep Wrangler: INTRODUCTION / Vehicle Modifications, Alterations

WARNING!

Any modifications or alterations to this vehicle could seriously affect its roadworthiness and safety and may lead to a collision resulting in serious injury or death.

Rollover Warning

Utility vehicles have a significantly higher rollover rate than other types of vehicles. This vehicle has a higher ground clearance and a higher center of gravity than many passenger vehicles...

Symbol Glossary

Some car components have colored labels with symbols indicating precautions to be observed when using this component. It is important to follow all warnings when operating your vehicle...

Other information:

Jeep Wrangler 2018-2026 Owners Manual: 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 damage the emissions control system. An out-of-tune engine or certain fuel or ignition malfunctions can cause the catalytic converter to overheat...

Jeep Wrangler 2018-2026 Owners Manual: Low Diesel Emissions Additive AdBlue® (UREA) Indicator Light — If Equipped

The Low Diesel Exhaust Emissions Additive AdBlue® (UREA) indicator light illuminates when the AdBlue® (UREA) level is low. Fill the AdBlue® (UREA) tank as soon as possible with at least 1.3 gallons (5 liters) of AdBlue® (UREA). If filling the tank is done with a remaining range of AdBlue® (UREA) in the tank equal to zero, you may need to wait two minutes before starting the vehicle...

Bi-Level Mode

Jeep Wrangler. Bi-Level Mode Air comes from the instrument panel outlets and floor outlets. A slight amount of air is directed through the defrost and side window demister outlets.

NOTE:

Bi-Level mode is designed under comfort conditions to provide cooler air out of the panel outlets and warmer air from the floor outlets.