Jeep Wrangler 2018-2025 Owners Manual / GETTING TO KNOW YOUR INSTRUMENT PANEL / WARNING LIGHTS AND MESSAGES / Yellow Warning Lights / AdBlue® (UREA) Injection System Failure Warning Light — If Equipped

Jeep Wrangler: Yellow Warning Lights / AdBlue® (UREA) Injection System Failure Warning Light — If Equipped

Jeep Wrangler. AdBlue® (UREA) Injection System Failure Warning Light — If Equipped This warning light will illuminate along with a dedicated message on the display (if equipped) if an unknown fluid not conforming with acceptable characteristics is inserted, or if an average consumption of AdBlue® (UREA) over 50% is detected. Contact an authorized dealer as soon as possible.

If the problem is not solved, a specific message will appear on the Instrument Cluster Display whenever a certain threshold is reached until it will no longer be possible to start the engine.

When about 125 miles (200 km) are remaining before the AdBlue® (UREA) tank is empty, a continuous dedicated message will appear on the instrument panel, accompanied by a chime.

    Engine Check/Malfunction Indicator Warning Light (MIL)

    The MIL is a part of an Onboard Diagnostic System called OBD II that monitors engine and automatic transmission control systems. This warning light will illuminate when the ignition is in the ON/RUN position before engine start...

    Service 4WD Warning Light — If Equipped

    This warning light will illuminate to signal a fault with the 4WD system. If the light stays on or comes on during driving, it means that the 4WD system is not functioning properly and that service is required...

    Other information:

    Jeep Wrangler 2018-2025 Owners Manual: Battery Saver On/Battery Saver Mode Message — Electrical Load Reduction Actions — If Equipped


    This vehicle is equipped with an Intelligent Battery Sensor (IBS) to perform additional monitoring of the electrical system and status of the vehicle battery. In cases when the IBS detects charging system failure, or the vehicle battery conditions are deteriorating, electrical load reduction actions will take place to extend the driving time and distance of the vehicle...

    Jeep Wrangler 2018-2025 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...

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    REMOTE START — IF EQUIPPED (DIESEL)

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