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Rear Doors not Locking

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Sarp1028, Oct 21, 2015.

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  1. Sarp1028

    Sarp1028 Junior Member

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    After a quick search for similar problems in the forum and finding no similar issues... I'm worried. When I lock the car with the FOB, the door handle, or pressing the lock button on the driver door- the rear doors will not lock. Any input would be appreciated.
     
    #1 Sarp1028, Oct 21, 2015
  2. bisco

    bisco cookie crumbler

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    are the child locks on?
     
    #2 bisco, Oct 21, 2015
  3. Montgomery

    Montgomery Senior Member

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    Check the child locks within the door. If you had your car recently detailed or cleaned at a carwash, they are notorious for accidently sliding the child lock buttons into position.
     
    #3 Montgomery, Oct 21, 2015
  4. Sarp1028

    Sarp1028 Junior Member

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    UPDATE: So i followed your advice and verified. BOTH child locks were OFF. However I toggled each. NOW the back-right DOES lock and the back-right still will not lock no matter the child-lock position... Already sounds expensive.
     
    #4 Sarp1028, Oct 21, 2015
  5. Montgomery

    Montgomery Senior Member

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    Sorry it didn't fix your problem. Next step, the dealer.
     
    #5 Montgomery, Oct 21, 2015
  6. mrbigh

    mrbigh Prius Absolutum Dominium

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    How deep your wallet is??????
    Look further into the problem, what did it changed before this started?
     
    #6 mrbigh, Oct 22, 2015
  7. bisco

    bisco cookie crumbler

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    sounds like a bad switch? might have to pull the panel off. strange that they are acting funky.
     
    #7 bisco, Oct 22, 2015
  8. Sarp1028

    Sarp1028 Junior Member

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    I bought it used a week ago so I am discovering some of the not-so-obvious imperfections as I go. With that being said, I have not changed anything to have it suddenly stop working as usual, this was the way I inherited it.
     
    #8 Sarp1028, Oct 22, 2015
  9. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Shouldn't 2015 still been within warranty?
     
    #9 Mendel Leisk, Oct 22, 2015
  10. Sarp1028

    Sarp1028 Junior Member

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    Perhaps, but my car is a 2010... Forgot to mention that.
     
    #10 Sarp1028, Oct 22, 2015
  11. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    And a complete brain bubble on my part: I looked at the year on Montgomery's avatar.
     
    #11 Mendel Leisk, Oct 22, 2015
  12. nycrich425

    nycrich425 New Member

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    If you do an online search you will see that this is becoming a popular problem. There is a motor in the door actuator module. They will fail completely or start intermittently.
    My front door was intermittent until it failed to lock.
    I ordered a pair of the motors for $12 and will follow the DIY. Dealer wanted $375 each.
    This is on my Prius 2012 III
     
    #12 nycrich425, Nov 2, 2015
    Mendel Leisk likes this.
  13. LaJay007

    LaJay007 Junior Member

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    I replaced both rear doors and the front passenger door yesterday. All done in 2hours. I couldn't be happier w/my recently purchased 2010 Prius with 64K miles. Now all the doors lock and unlock! I bought all three actuators on Ebay from a reputable rebuilder. All three for $275 delivered. Followed the online instructions and knocked it out. So much cheaper than the mechanic charging $500 per door.
     
    #13 LaJay007, Sep 5, 2017
    Grit likes this.
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