Jeep Wrangler: WARNING LIGHTS AND MESSAGES / Yellow Indicator Lights

Tire Pressure Monitoring System (TPMS) Warning Light

The warning light switches on and a message is displayed to indicate that the tire pressure is lower than the recommended value and/or that slow pressure loss is occurring...

4WD Indicator Light — If Equipped

This light alerts the driver that the vehicle is in the four-wheel drive mode, and the front and rear driveshafts are mechanically locked together forcing the front and rear wheels to rotate at the same speed...

Other information:

Jeep Wrangler 2018-2026 Owners Manual: Transporting Passengers and Pets

Transporting Passengers NEVER TRANSPORT PASSENGERS IN THE CARGO AREA. WARNING! Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death. It is extremely dangerous to ride in a cargo area, inside or outside of a vehicle...

Jeep Wrangler 2018-2026 Owners Manual: NORMAL OPERATION — DIESEL ENGINE

Observe the following when the diesel engine is operating: All message center lights are off. Malfunction Indicator Light (MIL) is off. Engine Oil Pressure telltale is not illuminated. Voltmeter operation. The voltmeter may show a gauge fluctuation at various engine temperatures...