Jeep Wrangler: STARTING THE ENGINE — DIESEL ENGINE (IF EQUIPPED) / 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.

WARNING!

  • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.
  • When leaving the vehicle, always make sure the keyless ignition node is in the “OFF” mode, remove the key fob from the vehicle and lock the vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the gear selector.
  • Do not leave the key fob in or near the vehicle, or in a location accessible to children, and do not leave the ignition of a vehicle equipped with Keyless Enter-N-Go in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.

    Normal Starting

    Observe the instrument cluster lights when starting the engine. NOTE: Normal starting of either a cold or a warm engine is obtained without pumping or pressing the accelerator pedal...

    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...

    Other information:

    Jeep Wrangler 2018-2026 Owners Manual: Lowering The Soft Top Into Sunrider® Position


    Use this QR code to access your digital experience. WARNING! The fabric quarter windows and fabric top are designed only for protection against the elements. Do not rely on them to contain occupants within the vehicle or to protect against injury during an accident...

    Jeep Wrangler 2018-2026 Owners Manual: Engine Check/Malfunction Indicator Warning Light (MIL)


    The MIL is a part of an Onboard Diagnostic System called OBD II that monitors engine and automatic transmission control systems. This warning light will illuminate when the ignition is in the ON/RUN position before engine start. If the bulb does not come on when turning the ignition switch from OFF to ON/RUN, have the condition checked promptly...

    Categories

    Automatic Headlights — If Equipped, Lights-On Reminder

    Automatic Headlights

    This system automatically turns the headlights on or off according to ambient light levels. To turn the system on, rotate the headlight switch clockwise to the last detent for automatic headlight operation. When the system is on, the headlight time delay feature is also on. This means the headlights will stay on for up to 90 seconds after you place the ignition into the OFF position. To turn the automatic system off, move the headlight switch out of the AUTO position.

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