# Service bulletin B16044

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10085026
- Published by NHTSA: 2016\-11\-29
- Manufacturer's number: B16044
- Manufacturer's date: 2016\-08\-03
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION

## NHTSA's summary

SERVICE BULLETIN \- A JUDDER FROM THE TORQUE CONVERTER LOCK\-UP CLUTCH MAY BE FELT WHILE DRIVING BETWEEN 20 AND 60MPH. THE PROBLEM IS TYPICALLY DIAGNOSED AS A BAD TORQUE CONVERTER. AMERICAN HONDA INVESTIGATED THE JUDDER AND FOUND THAT THE TORQUE CONVERTER WAS NOT CAUSING THE JUDDER; RATHER, IT WAS CAUSED BY DETERIORATED TRANSMISSION FLUID.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Transmission and driveline, Automatic transmission

## Vehicles listed

- 2012 to 2015 ACURA MDX

## Recalls for the same vehicles and component

- [13V571000](/recalls/nhtsa/13V571000.md), 2013-11-14: POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [B16\-062](/bulletins/10145420.md), 2018-10-15, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Service bulletin \- A judder from the torque converter lock\-up clutch may be felt while driving between 20 and 60 mph. The problem is typically diagnosed as a bad torque converter. American Honda investigated the judder and found that the torque converter was not causing the judder and the transmission is not damaged by this judder.
- [B16\-063](/bulletins/10133008.md), 2018-04-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Service bulletin \- After the software update, some vehicles based on how they are driven \(extreme conditions\) may still experience ATF deterioration after updating the PGM\-FI or A/T system and the shudder may return. The problem is typically diagnosed as a bad torque converter \(TC\). There is no damage to the TC, but because the ATF has deteriorated, it needs to be changed even though the ?ATF Service Due? message has not appeared.
- [BVE02142018901](/bulletins/10129342.md), 2018-02-26, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Dealer message \- Every Service Bulletin requires you to take an HDS snap shot and use the job aid or Tech2Tech to confirm the judder/shudder is coming from the torque converter.
- [B17\-034](/bulletins/10118014.md), 2017-09-27, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; ENGINE. Service bulletin \- The MIL comes on with DTC P0430 \(front bank catalyst system efficiency below threshold \[Bank 2\]\). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
- [Service Bulletin](/bulletins/10108863.md), 2017-07-31, Service bulletin: EQUIPMENT:APPLIANCE:AIR CONDITIONER; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Service bulletin \- The MIL comes on with DTC P0134 \(rear A/F sensor \[bank 1, sensor 1\] heater system malfunction\) and/or P0154 \(front A/F sensor \[bank 2, sensor 1\] heater system malfunction\). The PCM misinterprets the heater system input from the A/F sensor and sets DTC codes P0134 and/or P0154.
- [B15\-053](/bulletins/10108743.md), 2017-07-31, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Service bulletin \- The MIL comes on with DTC P0430 \(front bank catalyst system efficiency below threshold \[Bank 2\]\). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
- [B16\-063](/bulletins/10108030.md), 2017-06-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. "SERVICE BULLETIN \- AFTER THE SOFTWARE UPDATE, SOME VEHICLES BASED ON HOW THEY ARE DRIVEN \(EXTREME CONDITIONS\) MAY STILL EXPERIENCE ATF DETERIORATION AFTER UPDATING THE PGM\-FI OR A/T SYSTEM AND THE SHUDDER MAY RETURN. THE PROBLEM IS TYPICALLY DIAGNOSED AS A BAD TORQUE CONVERTER \(TC\). THERE IS NO DAMAGE TO THE TC, BUT BECAUSE THE ATF HAS DETERIORATED, IT NEEDS TO BE CHANGED EVEN THOUGH THE “ATF SERVICE DUE” MESSAGE HAS NOT APPEARED. MAKE SURE THE VEHICLE IS UPDATED BY REFERRING TO THE INSPECTION PROCEDURE."
- [B16\-062](/bulletins/10108029.md), 2017-06-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. "SERVICE BULLETIN \- A JUDDER FROM THE TORQUE CONVERTER LOCK\-UP CLUTCH MAY BE FELT WHILE DRIVING BETWEEN 20 AND 60 MPH. THE PROBLEM IS TYPICALLY DIAGNOSED AS A BAD TORQUE CONVERTER. AMERICAN HONDA INVESTIGATED THE JUDDER AND FOUND THAT THE TORQUE CONVERTER WAS NOT CAUSING THE JUDDER AND THE TRANSMISSION IS NOT DAMAGED BY THIS JUDDER."
- [B16\-044](/bulletins/10108028.md), 2017-06-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. SERVICE BULLETIN \- ALL VEHICLES AFFECTED BY THIS BULLETIN WERE SUPERSEDED TO 16\-062. IF YOU DID SERVICE BULLETIN 16\-044 ON OR BEFORE FEBRUARY 11, 2017, MAKE SURE TO USE THE WARRANTY CLAIM INFORMATION PROVIDED BELOW TO FILE A CLAIM.
- [B16\-063](/bulletins/10100145.md), 2017-05-23, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION. SERVICE BULLETIN \- AFTER THE SOFTWARE UPDATE, SOME VEHICLES BASED ON HOW THEY ARE DRIVEN \(EXTREME CONDITIONS\) MAY STILL EXPERIENCE ATF DETERIORATION AFTER UPDATING THE PGM\-FI SYSTEM AND THE SHUDDER MAY RETURN. THE PROBLEM IS TYPICALLY DIAGNOSED AS A BAD TORQUE CONVERTER \(TC\). THERE IS NO DAMAGE TO THE TC, BUT BECAUSE THE ATF HAS DETERIORATED, IT NEEDS TO BE CHANGED EVEN THOUGH THE “ATF SERVICE DUE” MESSAGE HAS NOT APPEARED. MAKE SURE THE VEHICLE IS UPDATED BY REFERRING TO THE INSPECTION PROCEDURE.

JSON: [/v1/bulletins/10085026](/v1/bulletins/10085026)

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