# Service bulletin B16045

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: 10116778
- Published by NHTSA: 2017\-08\-31
- Manufacturer's number: B16045
- Manufacturer's date: 2016\-11\-12
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE

## 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 transmission fluid deteriorates quicker than expected when it is exposed to intermittent high heat loads under specific driving conditions. American Honda is working on a software update that will maintain the transmission fluid temperature within the desirable range under all driving conditions and eliminate the potential for this judder. American Honda will revise this service bulletin when the software update is available.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10116778-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10116778-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline, Automatic transmission, Software

## Vehicles listed

- 2012 ACURA RL

## Other bulletins for the same vehicles and component

- [B16\-066](/bulletins/10108305.md), 2017-06-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; 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 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 SOFTWARE IS UPDATED BY REFERRING TO THE INSPECTION PROCEDURE."
- [B16\-065](/bulletins/10108304.md), 2017-06-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; 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. THE JUDDER IS CAUSED BY DETERIORATED TRANSMISSION FLUID. THE TRANSMISSION FLUID DETERIORATES QUICKER THAN EXPECTED WHEN IT IS EXPOSED TO INTERMITTENT HIGH HEAT LOADS UNDER SPECIFIC DRIVING CONDITIONS. A SOFTWARE UPDATE IS AVAILABLE TO MAINTAIN THE TRANSMISSION FLUID TEMPERATURE WITHIN THE DESIRABLE RANGE UNDER ALL DRIVING CONDITIONS AND ELIMINATE THE POTENTIAL FOR THIS JUDDER."
- [B16\-045](/bulletins/10108303.md), 2017-06-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. "SERVICE BULLETIN \- THIS BULLETIN IS REPLACED BY 16\-065, 2012 RL, 14–17 RLX: JUDDER FROM THE TORQUE CONVERTER LOCK\-UP CLUTCH ALL VEHICLES AFFECTED BY THIS BULLETIN WERE SUPERSEDED TO 16\-065."
- [B16045](/bulletins/10085027.md), 2016-11-29, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 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.
- [ASN: 1305](/bulletins/10052433.md), 2013-07-27, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); TIRES; SERVICE BRAKES, HYDRAULIC; ENGINE; WHEELS. ACURA: SERVICE NEWS. ENGINE SHUTS OFF, POWER ON, BUT IN ACCESSORY; NEVER USE CONVENTIONAL WHEEL \& TIRE ASSEMBLIES ON PAX VEHICLES; MIL ON AFTER THROTTLE BODY CLEANING OR REPLACEMENT; S/M FIX BRAKE SYSTEM BLEEDING. VARIOUS MODELS AND MODEL YEARS. \*PE

JSON: [/v1/bulletins/10116778](/v1/bulletins/10116778)

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