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Service bulletins for the 2015 Acura RLX

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.

162 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Automatic transmission are shown. Show all

Bulletins, newest first
B19-0042019-02-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. Service bulletin - The transmission judders, shudders, or surges while driving. The transmission fluid has deteriorated prematurely.
BVE021420189012018-02-26. 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.
B160652017-08-31. 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 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 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. 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.
B16-0662017-06-30. 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."
B16-0652017-06-30. 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."
B17010C2017-06-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL); POWER TRAIN:AUTOMATIC TRANSMISSION. "SERVICE NEWS ARTICLE - DO YOU HAVE A VEHICLE THAT HAS MULTIPLE INDICATORS ON OR WON’T GO INTO GEAR AND THE MIL IS ON WITH A/T DTC P26C3 (INTERNAL CONTROL MODULE TRANSMISSION RANGE SENSOR PERFORMANCE)? THERE MAY BE DEBRIS IN THE REVERSE OR NEUTRAL SHIFT BUTTONS OF THE SHIFT BY WIRE (SBW) SHIFTER ASSEMBLY THAT’S CAUSING THEM TO STICK. TYPICAL DEBRIS ARE PARTICLES IN THE REVERSE SHIFT BUTTON OR STICKY RESIDUE IN THE NEUTRAL SHIFT BUTTON FROM SOMETHING THAT SPILLED."
B17010C2017-05-12. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. "SERVICE NEWS ARTICLE - DO YOU HAVE A VEHICLE THAT HAS MULTIPLE INDICATORS ON OR WON’T GO INTO GEAR AND THE MIL IS ON WITH A/T DTC P26C3 (INTERNAL CONTROL MODULE TRANSMISSION RANGE SENSOR PERFORMANCE)? THERE MAY BE DEBRIS IN THE REVERSE OR NEUTRAL SHIFT BUTTONS OF THE SHIFT BY WIRE (SBW) SHIFTER ASSEMBLY THAT’S CAUSING THEM TO STICK. TYPICAL DEBRIS ARE PARTICLES IN THE REVERSE SHIFT BUTTON OR STICKY RESIDUE IN THE NEUTRAL SHIFT BUTTON FROM SOMETHING THAT SPILLED."
B160452016-11-29. 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.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.