Ram 1500/2500/3500 Owners & Service Manuals

Ram 1500/2500/3500: To Start The Engine While In Autostop Mode

While in DRIVE the engine will start when the brake pedal is released or the throttle pedal is depressed. The transmission will automatically reengage upon engine restart. During this transition the brakes will hold the vehicle to avoid undesired vehicle movement.

Conditions that will cause the engine to start automatically while in Autostop mode.

The Engine Will Start Automatically When:

  • The transmission selector is moved from DRIVE to REVERSE or NEUTRAL
  • To maintain cabin temperature near the HVAC settings
  • HVAC is set to full defrost mode
  • Autostop time exceeds 5 minutes
  • Battery voltage drops too low
  • Low brake vacuum (e.g. after several brake pedal applications)
  • STOP/START OFF switch is pressed
  • 4WD system is put into 4LO mode
  • The emissions system requires it
  • A STOP/START system error occurs
  • The emissions system requires it
  • A STOP/START system error occurs

Conditions that force an automatic shift to PARK while in Autostop mode.

The Engine Will Not Start Automatically and the Transmission will be placed in PARK if:

  • The driver door is open and brake pedal released
  • The driver door is open and the driver seat belt is unbuckled
  • The engine hood has been opened
  • A STOP/START system error occurs

The engine may then be restarted by moving the transmission shift selector out of PARK (e.g. to DRIVE) or, in some cases, only by a KEY START. The Electronic Vehicle Information Center (EVIC) will display a SHIFT OUT OF PARK message, or a STOP/START KEY START REQUIRED message, to indicate which action is required.

Refer to "Electronic Vehicle Information Center (EVIC)" in "Understanding Your Instrument Panel" for further information.


     To Manually Turn Off The Stop Start System

    1. Press the STOP/START Off switch (located on the switch bank). The light on the switch will illuminate. STOP/START OFF Switch 2. The STOP/START OFF message will appear in Electronic Vehicle Informa

     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. 1500

     Automatic Transmission

    CAUTION! Damage to the transmission may occur if the following precautions are not observed: Shift into PARK only after the vehicle has come to a complete stop. Shift into or out of REVERSE only a


     Brake Assist System (BAS) - If Equipped

    The BAS is designed to optimize the vehicle's braking capability during emergency braking maneuvers. The BAS detects an emergency braking situation by sensing the rate and amount of brake application and then applies optimum pressure to the brakes. The system applies optimum pressure to the brakes i

     Vehicle Storage

    If you are storing your vehicle for more than 21 days, we recommend that you take the following steps to minimize the drain on your vehicle's battery: Disconnect the negative cable from battery. Any time you store your vehicle or keep it out of service (i.e., vacation) for two weeks or more, run

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