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: AUTOMATIC TRANSMISSION — IF EQUIPPED

You must press and hold the brake pedal while shifting out of PARK. CAUTION! Shift into or out of PARK or REVERSE only after the vehicle has come to a complete stop. Do not shift between PARK, REVERSE, NEUTRAL, or DRIVE when the engine is above idle speed...

Jeep Wrangler 2018-2026 Owners Manual: Brake Warning Light

This warning light monitors various brake functions, including brake fluid level and parking brake application. If the brake light turns on it may indicate that the parking brake is applied, that the brake fluid level is low, or that there is a problem with the Anti-Lock Brake System reservoir...