Jeep Wrangler Manuals
Jeep Wrangler 2018-2024 Owners Manual / STARTING AND OPERATING / NORMAL OPERATION — DIESEL ENGINE / Stopping The Engine

Jeep Wrangler: NORMAL OPERATION — DIESEL ENGINE / 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.

NOTE:

Refer to the following chart for proper engine shutdown.

Jeep Wrangler. Stopping The Engine

NOTE:

Under certain conditions the engine fan will run after the engine is turned off. These conditions are under high load and high temperature conditions.

    Engine Idling

    Avoid prolonged idling, long periods of idling may be harmful to your engine because combustion chamber temperatures can drop so low that the fuel may not burn completely...

    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...

    Other information:

    Jeep Wrangler 2018-2024 Owners Manual: Coolant Level


    The coolant bottle provides a quick visual method for determining that the coolant level is adequate. With the engine OFF and cold, the level of the engine coolant (antifreeze) in the bottle should be between the ranges indicated on the bottle. The radiator normally remains completely full, so there is no need to remove the radiator/ coolant pressure cap unless checking for engine coolant freeze point or replacing coolant...

    Jeep Wrangler 2018-2024 Owners Manual: Wait To Start Light — If Equipped


    This indicator light will illuminate for approximately two seconds when the ignition is turned to the ON/RUN position. Its duration may be longer based on colder operating conditions. Vehicle will not initiate start until telltale is no longer displayed...

    Categories

    Erasing All The HomeLink® Channels

    To erase the channels, follow this procedure:

    Place the ignition switch into the ON/RUN position. Push and hold the two outside HomeLink® buttons (I and III) for up to 20 seconds, or until the HomeLink® indicator light flashes.

    NOTE:

    Erasing all channels should only be performed when programming HomeLink® for the first time. Do not erase channels when programming additional buttons.

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