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Service bulletin SB-15-051

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10193233
Published by NHTSA2021-05-13
Manufacturer's numberSB-15-051
Manufacturer's date2016-02-26
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

BACKGROUND When the client uses the HFL, the person they are speaking with may experience poor sound quality, static, or the speaker’s voice cutting out. CORRECTIVE ACTION Cross-check the HFL part number and the HFL software version table in step 2 of REPAIR PROCEDURE to verify if the HFL control unit can be updated. NOTE: Make sure there is a match between the HFL P/N and software version under SOFTWARE INFORMATION

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Software

Vehicles listed
ACURA RDX2013, 2014, 2015, 2016

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B17020D2017-07-28. Service bulletin. Service news article - We?ve made an important change to the AcuraLink telematics unit that you need to be aware of. This change switches the coverage of the internal cellular module from Code Division Multiple Access (CDMA) to Long Term Evolution (LTE).
B15-0512017-05-23. Service bulletin. SERVICE BULLETIN - WHEN THE CLIENT USES THE HFL, THE PERSON THEY ARE SPEAKING WITH MAY EXPERIENCE POOR SOUND QUALITY, STATIC, OR THE SPEAKER’S VOICE CUTTING OUT. CROSS-CHECK THE HFL PART NUMBER AND THE HFL SOFTWARE VERSION TABLE IN STEP 2 OF REPAIR PROCEDURE TO VERIFY IF THE HFL CONTROL UNIT CAN BE UPDATED.
B15-0512017-05-22. Service bulletin. SERVICE BULLETIN - WHEN THE CLIENT USES THE HFL, THE PERSON THEY ARE SPEAKING WITH MAY EXPERIENCE POOR SOUND QUALITY, STATIC, OR THE SPEAKER’S VOICE CUTTING OUT.
B17-0182017-05-11. Service bulletin. "SERVICE BULLETIN - AFTER THE SOFTWARE UPDATE, SOME VEHICLES BASED ON HOW THEY ARE DRIVEN (EXTREME CONDITIONS) MAY STILL EXPERIENCE ATF DETERIORATION AFTER UPDATING THE A/T OR 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."
B160432016-11-29. Service bulletin. 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.
15-0512016-07-07. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.