Jeep Wrangler 2018-2025 Owners Manual / STARTING AND OPERATING / NORMAL OPERATION — DIESEL ENGINE / Cooling System Tips — Automatic Transmission / Do Not Operate The Engine With Failed Parts

Jeep Wrangler: Cooling System Tips — Automatic Transmission / Do Not Operate The Engine With Failed Parts

All engine failures give some warning before the parts fail. Be on the alert for changes in performance, sounds, and visual evidence that the engine requires service. Some important clues are:

Engine misfiring or vibrating severely
Sudden loss of power
Unusual engine noises
Fuel, oil or coolant leaks
Sudden change, outside the normal operating range, in the engine operating temperature
Excessive smoke
Oil pressure drop

Do Not Operate The Engine With Low Oil Pressure

If the low oil pressure warning light turns on while driving, stop the vehicle and shut down the engine as soon as possible. A chime will sound when the light turns on...

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...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: Programming And Requesting Additional Key Fobs

Programming the key fob may be performed by an authorized dealer.NOTE: Once a key fob is programmed to a vehicle, it cannot be repurposed and reprogrammed to another vehicle. Only key fobs that are programmed to the vehicle electronics can be used to start and operate the vehicle...

Jeep Wrangler 2018-2025 Owners Manual: Disconnecting The Jumper Cables

Disconnect the negative (-) end of the jumper cable from the engine ground of the vehicle with the discharged battery. Disconnect the opposite end of the negative (-) jumper cable from the negative (-) post of the booster battery. Disconnect the positive (+) end of the jumper cable from the positive (+) post of the booster battery...

Basic Voice Commands

The basic Voice Commands below can be given at any point while using your Uconnect system. Push the VR button on the steering wheel. After the beep, say:

“Cancel” to stop a current voice session. “Help” to hear a list of suggested Voice Commands. “Repeat” to listen to the system prompts again.