Jeep Wrangler: VEHICLE MAINTENANCE / Automatic Transmission — If Equipped

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...

Special Additives

FCA strongly recommends against using any special additives in the transmission. Automatic Transmission Fluid (ATF) is an engineered product and its performance may be impaired by supplemental additives...

Other information:

Jeep Wrangler 2018-2026 Owners Manual: Preparations For Jump Start

Supplemental Battery — If Equipped WARNING! Only use the positive battery post on the main battery to jump start your vehicle. Serious injury or death could result if you attempt to jump start using the supplemental battery. Battery gas is flammable and explosive...

Jeep Wrangler 2018-2026 Owners Manual: ENGINE BLOCK HEATER — IF EQUIPPED

The engine block heater warms the engine, and permits quicker starts in cold weather. Connect the cord to a standard 110-115 Volt AC electrical outlet with a grounded, three-wire extension cord. Diesel Engine Block Heater Cord Location The engine block heater cord is found under the hood bundled up next to the Power Distribution Center (PDC)...