Gear position - Neutral or Parking while doing Transmission Fluid change

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Garry20-20, Oct 17, 2020.

  1. Garry20-20

    Garry20-20 New Member

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    Hi Friends,

    I am planning to do transmission fluid change (already bought from the Toyota dealer) on my 2016 Prius V.

    I was wondering regarding

    1) gear position while changing (draining) the transmission fluid- in Parking or in

    Neutral.

    2) Is there any relation between the parking gear (neutral or parking) and the amount of transmission fluid drain, if the car is already levelled?

    I read many posts regarding this topic but could not find relevant information. If some one can

    shed some more light on it, it will be very helpful.

    Thanks again.
     
  2. Tim Jones

    Tim Jones Active Member

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    It doesn't matter...... I've done mine four times......you can't get in Neutral when the engine is off.
    Use a funnel and at least a three foot hose. Keep pouring until it comes out the top hole. Remove top bolt first. That way if for some reason you can't get the top one out your not out of fluid and can't put any in.
    Use a hose small enough to go inside the trani a inch or two and not real tight so the fluid can come out when it's full.
     
    #2 Tim Jones, Oct 18, 2020
    Last edited: Oct 18, 2020
  3. Elektroingenieur

    Elektroingenieur Senior Member

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    P⃞ and N aren’t different gear positions. In the P410 transaxle, the gear train is always in mesh, and there’s no shifting of gears in the usual sense. Rather, the shift states (D, R, and N or P⃞) are just different ways, electrically, of operating the two motor generators. The only mechanical difference between P⃞ and N is whether the parking lock mechanism (parking pawl) is engaged.
    I doubt it. The Repair Manual (more info) has two procedures for the hybrid transaxle fluid: “Replacement,” to drain, refill, and run the engine in inspection mode, do that again, and then drain and refill; and “Adjustment,” to drain and refill only once. If you want all of the old fluid out, do the “Replacement” procedure—but you’ll need enough new ATF WS to refill the transaxle three times.
    It’s not necessary in this case, but you can turn a Prius car off in N. Toyota’s recommended procedure (see the Job Aid in the Course 072 handbook, available by subscription to techinfo.toyota.com) is to pull the P.CON.MTR relay before shutting down the car, which prevents the parking lock from engaging. It also sets a diagnostic trouble code that has to be cleared later.
     
    jerrymildred likes this.
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    Just drain, with the car off, refill with car level, and when it starts coming back out level is good.
     
    Tim Jones likes this.
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