Jeep Wrangler: INTRODUCTION / Vehicle Modifications, Alterations

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: System Overview

This vehicle is equipped with a Diesel Exhaust Fluid (DEF) injection system and a Selective Catalytic Reduction (SCR) catalyst to meet the emission requirements. The DEF injection system consists of the following components: DEF tank DEF pump DEF injector Electronically-heated DEF Lines NOx sensors Temperature sensors SCR catalyst The DEF injection system and SCR catalyst enable the achievement of diesel emissions requirements; while maintaining outstanding fuel economy, drivability, torque and power ratings...

Jeep Wrangler 2018-2026 Owners Manual: FUEL REQUIREMENTS — GASOLINE ENGINE

While operating on gasoline with the required octane number, hearing a light knocking sound from the engine is not a cause for concern. However, if the engine is heard making a heavy knocking sound, see a dealer immediately. Use of gasoline with an octane number lower than recommended octane can cause engine failure and may void the New Vehicle Limited Warranty...