Jeep Wrangler: Yellow Indicator Lights / Low Diesel Emissions Additive AdBlue® (UREA) Indicator Light — If Equipped

Wait To Start Light — If Equipped

This indicator light will illuminate for approximately two seconds when the ignition is turned to the ON/RUN position. Its duration may be longer based on colder operating conditions...

Water In Fuel Indicator Light — If Equipped

The “Water In Fuel Indicator Light” will illuminate when there is water detected in the fuel filter. If this light remains on, DO NOT start the vehicle before you drain the water from the fuel filter to prevent engine damage, and please see an authorized dealer...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: Carbon Monoxide Warnings

WARNING! Carbon monoxide (CO) in exhaust gases is deadly. Follow the precautions below to prevent carbon monoxide poisoning: Do not inhale exhaust gases. They contain carbon monoxide, a colorless and odorless gas, which can kill. Never run the engine in a closed area, such as a garage, and never sit in a parked vehicle with the engine running for an extended period...

Jeep Wrangler 2018-2025 Owners Manual: STOP/START SYSTEM — AUTOMATIC TRANSMISSION (IF EQUIPPED)

The Engine Stop/Start (ESS) function is developed to reduce fuel consumption. The system will stop the engine automatically during a vehicle stop if the required conditions are met. Releasing the brake pedal or pressing the accelerator pedal will automatically re-start the engine...