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Product Update: Software Update For Lock-Up Clutch Function (12-007)

Publication date: 2012-03-13
Reference number: 12-007

PRODUCT UPDATE: SOFTWARE UPDATE FOR LOCK-UP CLUTCH FUNCTION

PRODUCT UPDATE: SOFTWARE UPDATE FOR LOCK-UP CLUTCH FUNCTION

SERVICE CAMPAIGN BULLETIN

Reference Number(s): 12-007, Date of Issue:  March 13, 2012
ACURA: 2010-12 MDX, ZDX
CATEGORY: Transaxle
APPLIES TO: 2010-12 MDX - Check the iN VIN status for eligibility; 2010-12 ZDX - Check the iN VIN status for eligibility
Superceded Bulletin(s): 12-007, Date of Issue:  February 24, 2012
NOTE: (Supersedes 12-007, dated February 24, 2012)

REVISION SUMMARY

In Applies to, and under SOFTWARE INFORMATION, 2012 model year MDX and ZDX information was added.

BACKGROUND

A judder from the torque converter lock-up clutch may be felt while driving between 20-60 mph. To minimize the opportunity for the judder to occur, a software update for the transmission is available.

CLIENT NOTIFICATION

All owners of affected vehicles will be sent a notification of this product update. An example of the client letter is included at the end of this service bulletin.

Do an iN VIN status inquiry  to make sure the vehicle is shown as eligible.

In addition, check for a punch mark above the ninth character of the engine compartment VIN. A punch mark in that location means this product update has already been completed.

Some vehicles affected by this campaign may be in your new or used vehicle inventory. Repair these vehicles before they are sold.

CORRECTIVE ACTION

Update the PGM-FI or the A/T software. Then, if the vehicle is client-owned or previously owned, replace the ATF.

PARTS INFORMATION

Washer: P/N 90441-PK4-000

Drain Washer: P/N 90471-PX4-000

REQUIRED MATERIALS

Automatic Transmission Fluid DW-1 (one quart; four required): P/N 08200-9008A

Automatic Transmission Fluid DW-1 (55 gallon drum): P/N 08200-9009

WARRANTY CLAIM INFORMATION

WARRANTY CLAIM INFORMATION

OP# Description FRT
1255B7 Update the PGM-FI or A/T software. 0.2
A Add for changing ATF fluid - client-owned or previously owned vehicles only. 0.3

Failed Part: P/N 37820-RYE-A76

Defect Code: 5TJ00

Symptom Code: S2800

Skill Level: Repair Technician

SOFTWARE INFORMATION

NOTE: Unnecessary or incorrect repairs resulting from a failure to update the HDS or MVCI are not covered under warranty.

MVCI Control Module (CM) Update:

Application Version V2.16.04 or later 

Database update 22-FEB-2012 or later 

HDS Software Version:

3.002.033 or later 

Before beginning the repair, make sure that both the HDS and MVCI are updated as listed above. 

Do only the update listed in this service bulletin. 

Check that the MVCI indicates the applicable program ID listed below (or a later program ID) as the Recommended Update  when the update begins.

If the MVCI displays This vehicle does not need an update at this time  during the update, the software for this service bulletin is already installed.

For more information about updating the HDS, the MVCI, and vehicle systems, refer to Service Bulletin 01-026, Updating Control Units/Modules. 

Year/Model Program ID (or later) Program P/N (or later) (2)System to Update
2010-11 MDX (Base, Tech) YEA770 37806-RYE-A77 AT
(1)2011 MDX (Base, Tech) YEA230 37805-RYE-A23 PGM-FI
2012 MDX (Base, Tech) YE3050 37806-RYE-305 AT
(1)2012 MDX (Base, Tech) YE4050 37805-RYE-405 PGM-FI
2010-11 MDX (Advance) YEA870 37806-RYE-A87 AT
(1)2011 MDX (Advance) YEA330 37805-RYE-A33 PGM-FI
2012 MDX (Advance) YE3060 37806-RYE-306 AT
(1)2012 MDX (Advance) YE4060 37805-RYE-406 PGM-FI
2010-11 ZDX (Base, Tech) P6A570 37806-RP6-A57 AT
2010-11 ZDX (Advance) P6A770 37806-RP6-A77 AT
2012 ZDX (Base, Tech) P63050 37806-RP6-305 AT
2012 ZDX (Advance) P63060 37806-RP6-306 AT
(1) These vehicles use a PCM made by Continental. For more information about these PCMs and how they're different from PCMs by Keihin, refer to the ServiceNews  article "New PCM Supplier for MDXs."
(2) Continental PCMs contain only one software program that contains the software for both the PGM-FI and AT systems. Update the PGM-FI system on these vehicles. Keihin PCMs contain separate software programs for the PGM-FI and AT systems. Update only  the AT system on these vehicles.

REPAIR PROCEDURE

NOTE: MDX is shown; ZDX is similar.
  1. Update the PGM-FI or the A/T software. Refer to Service Bulletin 01-026, Updating Control Units/Modules.
    • If this is a client-owned or previously owned vehicle, go to step 2.
    • If the vehicle is new and unsold, do not change the ATF. Go to step  15 to punch the VIN.
  2. Start the engine and let it warm up to normal operating temperature (the radiator fan comes on), position the vehicle on a lift, and turn the engine off.
  3. ZDX: Remove the air cleaner.
  4. ZDX: Remove the intake air duct.
  5. Remove the ATF filler bolt and the sealing washer.
    G07982157
  6. Raise the vehicle, and make sure it's securely supported.
  7. Remove the engine undercover.
    G07982158
  8. Remove the drain plug, and drain the ATF.
    G07982159
  9. Reinstall the drain plug using a new sealing washer, and torque it to 49 N.m (36 lb-ft)  .
  10. Reinstall the engine undercover. Torque the bolts to 9.3 N.m (7 lb-ft)  , then lower the vehicle.
  11. Refill the transmission with 3.3 quarts of ATF through the filler hole.
  12. Install the ATF filler bolt using a new sealing washer, and torque it to 44 N.m (33 lb-ft)  .
  13. Check that the fluid is filled to the proper level.
    G07982160
  14. ZDX: Reinstall the intake air duct and the air cleaner.
  15. Center-punch a completion mark above the ninth character of the engine compartment VIN:
    G07982161

EXAMPLE OF CLIENT LETTER

March, 2012

Product Update: Software Update for Lock-up Clutch 

Dear Acura Owner:

This letter is to notify you of a potential problem with your vehicle and what you should do to resolve it.

What is the problem? 

On some 2010-12 MDXs and ZDXs, a transmission judder (vibration) may sometimes be felt while driving between 20-60 mph. To minimize the probability for judder to occur, a software update for the transmission is available. Even if you do not feel a judder from the transmission, you should still have the software updated. Otherwise, the transmission may become damaged.

What should you do? 

Contact any authorized Acura dealer for an appointment to have your vehicle's software updated. The dealer will update the software in the powertrain control module. This work will be done free of charge. Please plan to leave your vehicle at the dealer for half a day to allow them flexibility in scheduling.

Lessor Information 

If this is a leased vehicle, please forward a copy of this notice to the lessee.

If you have questions 

If you have any questions about this notice, or need assistance with locating an Acura dealer, please call Acura Client Relations at 800-382-2238,  and select option 4. You can also locate a dealer online at acura.com. 

We apologize for any inconvenience this product update may cause you. Our goal is to ensure that your vehicle continues to be as reliable and enjoyable as possible.

Sincerely,

American Honda Motor Co., Inc. 

Acura Automobile Division 

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