Jeep Wrangler: VEHICLE MAINTENANCE / Transfer Case

Front/Rear Axle Fluid

For normal service, periodic fluid level checks are not required. When the vehicle is serviced for other reasons the exterior surfaces of the axle assembly should be inspected...

Manual Transmission — If Equipped

Fluid Level Check Check the fluid level by removing the fill plug. The fluid level should be between the bottom of the fill hole and a point not more than 3/16 of an inch (4...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: OFF-ROAD PAGES — IF EQUIPPED

If your vehicle is equipped with Off-Road Pages, it will provide you vehicle status while operating on off-road conditions. It supplies information relating to the status of the drivetrain, transfer case, coolant/oil gauges, pitch and roll of the vehicle and access to the trailcam system...

Jeep Wrangler 2018-2025 Owners Manual: Diesel Exhaust Fluid Storage

Diesel Exhaust Fluid (DEF) is considered a very stable product with a long shelf life. If DEF is kept in temperatures between 10° and 90°F (-12° and 32°C), it will last a minimum of one year. DEF is subject to freezing at the lowest temperatures...