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Service bulletins for the 2015 Acura TLX

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.

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

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Only bulletins with component: Software are shown. Show all

Bulletins, newest first
JL0-00004912021-05-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. To ensure Acura clients have the best ownership experience, new software is sometimes released to improve the operation of our product. Recently, we released a software update for the audio, navigation, and hands-free phone systems in your navigation equipped TLX. This software update provides functional and graphical improvements to make the systems more use friendly.
JN4-000008462021-05-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle, refer to the address card for the affected VIN. When a vehicle passes behind the 2015 TLX, the Cross-Traffic Monitoring (CTM) audible alert does not sound. The display screen shows the CTM indicators (orange arrows) only.
B19-0492019-08-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Service Bulletin - The MIL comes on with DTC P0420 (rear bank catalyst system efficiency below threshold [bank 1]).
BPaS040220189012018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2016 TLX V6s & 2016 MDXs with a client complaint of a no-start condition that requires the 12V battery to be replaced. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
B17-0342018-03-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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.
DLR MSG - Client2017-10-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Dealer message - In a continuing effort to provide the highest level of client satisfaction, Acura has released a software update for the audio, navigation, and hands-free phone systems. This software update provides functional and graphical improvements to make the systems more user friendly in the 2015 MDX and TLX. Refer to VIN Inquiry status to determine which vehicles in your inventory are eligible for this update.
B17-0342017-10-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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 Bulletin2017-09-29. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - In a continuing effort to provide the highest level of client satisfaction, Acura has released a software update for the audio, navigation, and hands-free phone systems. This software update provides functional and graphical improvements to make the systems more user friendly in the 2015 MDX and TLX.
DLR MSG - 2015 T2017-09-29. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Dealer message - To maximize the positive effects of the updated ODMD software for 2015 TLX and MDX (and reduce client confusion), we are encouraging everyone to update all your on ground inventory immediately and of course all the inbound inventory which still requires updating as it arrives (at TQI).
B17-0342017-09-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]).
Service Bulletin2017-08-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - When a vehicle passes behind the 2015 TLX, The Cross-Traffic Monitoring (CTM) alert does not sound. The display screen shows CTM indicators (orange arrows) only. The current Combination Meter Unit software does not enable the audible alert for CTM.
Service Bulletin2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - When a vehicle passes behind the 2015 TLX, the Cross-Traffic Monitoring (CTM) alert does not sound. The display screen shows the CTM indicators (orange arrows) only. The current combination meter unit software does not enable the audible alert for CTM.
DLR MSG - Acura2017-08-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION. Dealer message - The METER reflash process for Cross Traffic Monitoring System inadvertently erases the idle characteristics learned by the PCM, and the HDS shows Idle Torque Learning as "Not Completed." The drivability symptoms which can result from this condition range from harsh 2-1 downshift, high rpm at idle, surging coming to a stop, and idle fluctuation.
Service Bulletin2017-07-31. Service bulletin. BACK OVER PREVENTION; BACK OVER PREVENTION: BACK-UP ALARM; ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - When a vehicle passes behind the 2015 TLX, The Cross-Traffic Monitoring (CTM) alert does not sound. The display screen shows CTM indicators (orange arrows) only. The current Combination Meter Unit software does not enable the audible alert for CTM.
B17020D2017-07-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. 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).
B15-0242017-07-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - The PCM software does not meet OBDII regulations. Update the PCM software.
B15-0212017-06-30. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION. SERVICE BULLETIN - THIS BULLETIN IS REPLACED BY 17-015, 8-SPEED DCT HAS A BUMP OR HARD SHIFT WHEN COMING TO A STOP
B15-0402017-06-30. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SERVICE BULLETIN - UNDER VERY SPECIFIC DRIVING CONDITIONS THE CUSTOMER MAY NOTICE THE 2-3 UPSHIFT IS MORE PRONOUNCED (FIRMER) THAN THE OTHER SHIFTS. THE TRANSMISSION IS WORKING PROPERLY AND THIS DOES NOT INDICATE A PROBLEM. THIS IS NOT A DURABILITY CONCERN. TO GET OPTIMAL PERFORMANCE OUT OF THE TRANSMISSION, UPDATE THE TCM SOFTWARE, CLEAR ANY DTCS, AND DO THE PCM IDLE LEARN PROCEDURE.
B15-0242017-06-29. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SERVICE BULLETIN - THE PCM SOFTWARE DOES NOT MEET OBDII REGULATIONS. UPDATE THE PCM SOFTWARE.
DLR MSG - ACURA2017-06-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. "DEALER MESSAGE - TODAY, JUNE 9, 2015, AMERICAN HONDA IS ANNOUNCING A PRODUCT UPDATE FOR SOME 2015 TLX UNITS FOR UPDATING THE PCM SOFTWARE TO MEET OBDII REGULATIONS. BASIC PROBLEM SOFTWARE IN THE PCM DOES NOT MEET OBDII REGULATIONS. THE REPAIR UPDATE THE PCM WITH IMPROVED SOFTWARE."
B15-0242017-06-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. SERVICE BULLETIN - THE PCM SOFTWARE DOES NOT MEET OBDII REGULATIONS. UPDATE THE PCM SOFTWARE.
DLR MSG - ACURA2017-06-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. "DEALER MESSAGE - TODAY, JULY 8, 2015, AMERICAN HONDA IS ANNOUNCING A PRODUCT UPDATE FOR SOME 2015 TLX & 2016MDX UNITS FOR UPDATING THE PCM SOFTWARE TO REPAIR A CONCERN THAT MAY CAUSE THE VEHICLE TO UNEXPECTEDLY SHIFT INTO NEUTRAL DURING NORMAL OPERATION."
B15-038 - 7-25-12017-06-20. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. SERVICE BULLETIN - THE VEHICLE HESITATES, SURGES, IDLES HIGH, SHIFTS HARD, OR AUTO IDLE STOP DOES NOT WORK. THE IDLE LEARN IS UNABLE TO RELEARN ITS PARAMETERS WHEN THE CAN SYSTEM IS INTERRUPTED DURING AN ECM, TCM, OR CONTROL UNIT UPDATE.
B15-041 - 8-21-12017-06-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION. "SERVICE BULLETIN - MULTIPLE INDICATORS COME ON AND TRANSMISSION IS STUCK IN 4TH GEAR, AND TEMPORARY DTC P0714 IS STORED (ATF TEMPERATURE SENSOR (INTERMITTENT FAILURE)). SENSITIVITY IN THE SOFTWARE FOR THE ATF TEMPERATURE SENSOR CIRCUIT."
B15-040 - 8-19-12017-06-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SERVICE BULLETIN - UNDER CERTAIN DRIVING CONDITIONS SOME CLIENT MAY EXPERIENCE A FIRMER-THAN-EXPECTED UPSHIFT FROM 2ND TO 3RD GEAR. THE TCM SOFTWARE IS NOT OPTIMIZED FOR A CONSISTENT 2ND TO 3RD UPSHIFT UNDER ALL CONDITIONS.

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