Jeep Wrangler 2018-2025 Owners Manual / STARTING AND OPERATING / NORMAL OPERATION — DIESEL ENGINE / Cooling System Tips — Automatic Transmission

Jeep Wrangler: NORMAL OPERATION — DIESEL ENGINE / Cooling System Tips — Automatic Transmission

To reduce the potential for engine and transmission overheating in high ambient temperature conditions, take the following actions:

City Driving — When stopped, shift the transmission into NEUTRAL (N) and increase engine idle speed.
Highway Driving — Reduce your speed.
Up Steep Hills — Select a lower transmission gear.
Air Conditioning — Turn it off temporarily.

NOTE:

If the coolant temperature is too high, the A/C will automatically turn off.

Stopping The Engine

After full load operation, idle the engine for a few minutes before shutting it down. This idle period will allow the lubricating oil and coolant to carry excess heat away from the turbocharger...

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...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: Plastic And Coated Parts

Use Mopar® Total Clean to clean vinyl upholstery. CAUTION! Direct contact of air fresheners, insect repellents, suntan lotions, or hand sanitizers to the plastic, painted, or decorated surfaces of the interior may cause permanent damage. Wipe away immediately...

Jeep Wrangler 2018-2025 Owners Manual: Five-Position Transfer Case — If Equipped

Four-Wheel Drive Gear Selector The transfer case provides five mode positions: 2H (2WD High) — Two-Wheel Drive High Range 4H AUTO (4WD High AUTO) — Four-Wheel Drive Auto High Range 4H PT (4WD High PT) — Four-Wheel Drive Part Time High Range N (Neutral) 4L (4WD Low) — Four-Wheel Drive Low Range For additional information on the appropriate use of each transfer case mode position, see the information below: 2WD High Two-Wheel Drive High Range — This range is for normal street and highway driving on dry, hard surfaced roads...

Turn Signals. Lane Change Assist — If Equipped

Turn Signals

Move the multifunction lever up or down to activate the turn signals. The arrows on each side of the instrument cluster flash to show proper operation.