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: Manual Transmission — If Equipped

Apply the parking brake, place the gear selector in NEUTRAL, and press the clutch pedal before starting the vehicle. This vehicle is equipped with a clutch interlocking ignition system. It will not start unless the clutch pedal is pressed to the floor...

Jeep Wrangler 2018-2026 Owners Manual: ENGINE BREAK-IN RECOMMENDATIONS — DIESEL ENGINE (IF EQUIPPED)

The diesel engine does not require a break-in period due to its construction. Normal operation is allowed, providing the following recommendations are followed: Warm up the engine before placing it under load. Do not operate the engine at idle for prolonged periods...