PRIUS BRAKE BOOSTER WARRANTY ENHANCEMENT (CSP)

Discussion in 'Gen 3 Prius Main Forum' started by JackTheNarrator, Sep 1, 2018.

  1. JackTheNarrator

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    Safety Recalls A0B and D0H also "addressed" brake defects in the Prius

    Customer Reimbursement
    "Reimbursement consideration instructions will be included in the owner letter."

    Hmmm....

    Stay tuned...
     

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    #1 JackTheNarrator, Sep 1, 2018
    Last edited: Sep 1, 2018
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  2. Pdaddy

    Pdaddy Member

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    What would the symptoms be for this-- and only if it throws the codes? Does it have anything to do with the regen breaking kicking off on bumps? Thanks for the update!

    SM-G920V ?
     
  3. cnc97

    cnc97 Senior Member

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    So does this mean my 215k mile 2010 is covered until next November, or am I in the SOL 10-150k mile area? I’m confused.
     
  4. bisco

    bisco cookie crumbler

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    what is a 2010 prius phv?(n)
     
  5. bisco

    bisco cookie crumbler

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    looks to me like you will needadash light, because that would indicate a code.
    an 10/150 is way better than 3/36.
    if your booster goes out after 10 years, can you really complain?
     
  6. ChapmanF

    ChapmanF Senior Member

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    You're covered until next November, because the primary coverage says "regardless of mileage".

    After that, you're not covered, because the secondary coverage says "or 150,000 miles whichever occurs first" and with your 215k, it has.

    You would have some of the brake (or related) warning lights on, and it would have to turn out to have at least one of the codes listed in the associated TSB.

    That's what the A0B recall was about. It doesn't stop the regen from kicking off on bumps; all Prii do that, because the bump can be sensed as dicey traction, and it's safer to do dicey traction braking with four wheels than with two. But A0B was a firmware update supposed to make it feel less startling. If you've got any doubt whether yours had that recall done already, you can compare the firmware version in the skid ECU, shown in Techstream.

    -Chap
     
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  7. cnc97

    cnc97 Senior Member

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    So I have taken care of one of the “Big 3” issues affecting the Prius myself, the head gasket/oil burning.

    The brake master cylinder issue IF it occurs would be covered by Toyota for the next 14 months or so.

    This means I only need to save up for a battery.

    My decision to buy a Prius gets smarter everyday it seems. LoL
     
  8. JackTheNarrator

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    Safety Recall D0H
    Issued June 2013
    82,000 2010 Prius Covered

    Safety Recall = Preventative Remedy (brakes)
    brake booster pump assembly & brake booster assembly

    Warranty Enhancement ZJB
    TSB 0079-18
    Issued August 2018
    250,000 2010 Prius Covered

    Warranty Enhancement = Post-Failure Repair (brakes)
    Brake booster pump assembly & brake booster assembly
     

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    #8 JackTheNarrator, Sep 10, 2018
    Last edited: Sep 10, 2018
  9. JackTheNarrator

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    Q:

    How can a safety defect in a braking system resulting in a specific DTC code (C1256) result in a Preventative Safety Recall (D0H) in which Toyota pays to replace the defect component before it fails but a defect in the braking system of the same model year Prius (2010) that could result in the same DTC code (C1256) result in a post-brake failure warranty repair (Warranty Enhancement ZJB)?

    "ABS, BA, TRAC, and VSC control prohibited"? "Braking force solely generated by driver"?

    Safety Recall D0H Technical Instructions - pg. 2 (DTC C1256)
    ZJB Warranty Enhancement - pg. 1 (DTC C1256)

    --------------------------------------------------------------

    Last Modified: 11-3-2017 6.8:8.0.48 Doc ID: RM000000Y3M01BX

    Model Year Start: 2010 Model: Prius Prod Date Range: [04/2009 - ]

    Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C1256/56; Accumulator Low Pressure; 2010 MY Prius [04/2009 - ]

    DTC C1256/56 - Accumulator Low Pressure

    ----------------------------------------------------------------

    Last Modified: 11-3-2017 6.8:8.0.48 Doc ID: RM000000XGF012X

    Model Year Start: 2010 Model: Prius Prod Date Range: [04/2009 - ]

    Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: FAIL-SAFE CHART; 2010 MY Prius [04/2009 - ]

    FAIL-SAFE CHART

    1. FAIL-SAFE FUNCTION OF CONTROL SYSTEM

    (a) When a malfunction is detected in the brake control system, the skid control ECU turns the ABS warning, brake warning / red (malfunction), brake warning / yellow (minor malfunction) and slip indicator lights come on, as well as prohibits ABS, BA, TRAC and VSC operations.

    (b) If the skid control ECU detects that a system related to the hybrid control system is malfunctioning, it will prohibit operation of the TRAC and VSC system in order to prevent further malfunctions and to protect the system.

    ITEM

    OPERATION

    Malfunction in the ABS system - ABS, BA, TRAC and VSC control prohibited

    Malfunction in the BA system - ABS, BA, TRAC and VSC control prohibited

    Malfunction in the EBD system - ABS, EBD, BA, TRAC and VSC control prohibited

    Malfunction in the TRAC system - ABS, BA, TRAC and VSC control prohibited

    Malfunction in the VSC system - ABS, BA, TRAC and VSC control prohibited

    2. FAIL-SAFE FUNCTION OF HYDRAULIC SYSTEM

    (a) If a malfunction is detected in the brake booster with master cylinder (skid control ECU or brake actuator) or an individual sensor, control will be stopped and brake effort will be generated by the brake booster with master cylinder (hydraulic brake booster).

    (b) If brake control is stopped due to a malfunction in the hydraulic pressure source, the pressure generated in the master cylinder by the driver is applied to the wheel cylinders to ensure braking force.

    ITEM

    OPERATION

    Skid control ECU malfunction - Brake booster with master cylinder (hydraulic brake booster) generated braking force

    Hydraulic pressure controlling components malfunction - Brake booster with master cylinder (hydraulic brake booster) generated braking force

    Power supply components (Hydraulic pressure source) malfunction - Braking force solely generated by the driver
     

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  10. JackTheNarrator

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    For safety consideration...
     

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  11. Apatel1101

    Apatel1101 Member

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    So i do have this problem.
    “ C1300 skid control engine control unit malfunction”
    U0073 control module communication bus off

    Also have Abs, brake(red), power steering, yellow triangle with exclamation, check hybrid system, master brake system lights on

    Is this covered undered the campaign ?
     

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  12. ChapmanF

    ChapmanF Senior Member

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    This thread has mentioned both a customer support program (ZJB) and some recalls (A0B and D0H). They work differently.

    For the recalls, you don't need any specific behavior or symptom. You just check if your car is covered by the recall and if it's been done. If it hasn't been, you go in and they do it. Simple as that.

    A customer support program like ZJB is only about some particular way the system might or might not break because of a known issue. It isn't Toyota saying they've suddenly guaranteed their parts won't ever wear out or break for any reason. The codes you're reporting are not the ones covered by ZJB. You simply have something else going on with your brakes.

    In this case it looks like an electronics failure in the brake/skid ECU ("electronic control unit", not "engine control unit" as the Actron scanner says; lots of ECUs in the car, only one that's for the engine).

    In a Gen 3, you don't get that ECU separately, it's glommed onto the side of the brake hydraulic actuator, so it's a long knucklebuster of a job to replace. If it were mine, I might spend a little extra time looking for any simple cause of a network communication error, cycle all the 12 volt power, and see if maybe just maybe there was a simpler issue involved. But the C1300 is not super-optimistic on that score.
     
  13. JackTheNarrator

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    Warranty Repair = Post Failure Repair

    Safety Recall = Preemptive Safety Repair

    Loss of hydraulic pressure in brakes, increased stopping distance, and loss of Brake Assist not a danger? Why no prevention?

    safercar.gov = public info (File a Vehicle Safety Complaint | Safercar.gov | NHTSA)

    Let your voice be heard
     

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  14. johnHRP

    johnHRP Junior Member

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  15. ChapmanF

    ChapmanF Senior Member

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    H᠎i, welcome to PriusChat, where a lot of people come looking for accurate information about their Prius cars.

    The 'campaign ZJB' document linked above applies only to 3rd generation Prius liftback and Prius Plug-in (PHV) cars, not to the v or the c. The end dates vary by model year:

    [​IMG]

    So it's already over for 2010s (unless anybody's got one that hasn't rolled 150k by now).

    For 2011s through 15s, it is still in force through August 2021 and then to your tenth year or 150k miles, whichever comes first.

    It is a replacement conditioned on specific failures ("certain internal malfunctions of the brake booster and brake booster pump assemblies"). It is good to remember that in the 3rd generation Prius, those are two different assemblies:

    [​IMG]

    There is a list of trouble codes that may mean the covered failure has occurred. They are codes that can also be set for other reasons. Sometimes a few simple steps of diagnosis will reveal that something else has caused the codes you have, and that replacement of one or even both these assemblies would not be the necessary solution.
     
  16. frozenmba

    frozenmba Junior Member

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    The lights came on my dashboard earlier. My extended warranty ended on 4/3/2020. Has anyone had luck getting this covered after the extended warranty? If yes, what did you do?
     
  17. frozenmba

    frozenmba Junior Member

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    Can you confirm if I have the correct part numbers? 47050-47140 and 47070-47060

    Price is $600 each... ouch!
     
    #17 frozenmba, Aug 7, 2020
    Last edited: Aug 7, 2020
  18. ChapmanF

    ChapmanF Senior Member

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    You might check this post for more details, at least on one of the parts.

    Those of us around long enough to remember what the earlier prices were have to chuckle when we read "$600 ouch!".
     
  19. Apatel1101

    Apatel1101 Member

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    First you need to pull the codes for the lights. Then the you need to check if the codes in the recall are matching. If they do and then take it to dealer and give them the print out of the recall. They might charge you for diagnostic fee first. You might have to fight with them to do it under warranty. I let my wife do the talking part
     
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