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

Jeep Wrangler: STARTING AND OPERATING / NORMAL OPERATION — DIESEL ENGINE

Observe the following when the diesel engine is operating:

  • All message center lights are off.
  • Malfunction Indicator Light (MIL) is off.
  • Engine Oil Pressure telltale is not illuminated.
  • Voltmeter operation.

The voltmeter may show a gauge fluctuation at various engine temperatures. This is caused by the glow plug heating system. The number of cycles and the length of the cycling operation is controlled by the engine control module. Glow plug heater operation can run for several minutes. Once the heater operation is complete, the voltmeter needle will stabilize.

Starting Fluids

The engine is equipped with a glow plug preheating system. If the instructions in this manual are followed, the engine should start in all conditions and no type of starting fluid should be used...

Cold Weather Precautions

Operation in ambient temperature below 32°F (0°C) may require special considerations. The following charts suggest these options: Fuel Operating Range NOTE: Use “Ultra Low Sulfur Diesel Fuels (ULSD)” ONLY...

Other information:

Jeep Wrangler 2018-2024 Owners Manual: Center Seat LATCH


Two-Door Models: WARNING! This vehicle does not have a center seating position. Do not use the center lower LATCH anchorages to install a child seat in the center of the back seat. Four-Door Models: Do not install child restraints with rigid lower attachments in the center seating position...

Jeep Wrangler 2018-2024 Owners Manual: Seat Belt Extender


If a seat belt is not long enough to fit properly, even when the webbing is fully extended and the adjustable upper shoulder belt anchorage (if equipped) is in its lowest position, an authorized dealer can provide you with a Seat Belt Extender. The Seat Belt Extender should be used only if the existing seat belt is not long enough...

Categories

Manual Seat Height Adjustment

The driver's seat height can be raised or lowered by using the ratcheting handle, located on the outboard side of the seat. Pull upward on the handle to raise the seat, push downward on the handle to lower the seat. Several strokes may be necessary to achieve the desired position.

Jeep Wrangler. Manual Seat Height Adjustment

Seat Height Adjustment

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