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: Tire Markings

Tire Markings US DOT Safety Standards Code (TIN) Size Designation Service Description Maximum Load Maximum Pressure Treadwear, Traction and Temperature Grades NOTE: P (Passenger) — Metric tire sizing is based on US design standards. P-Metric tires have the letter “P” molded into the sidewall preceding the size designation...

Jeep Wrangler 2018-2026 Owners Manual: STARTING THE ENGINE — DIESEL ENGINE (IF EQUIPPED)

Before starting your vehicle, adjust your seat, both inside and outside mirrors, and fasten your seat belts. The starter is allowed to crank for up to 30-second intervals. Waiting a few minutes between such intervals will protect the starter from overheating...