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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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By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
Defect Code 6T6,2022-07-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. "Customer letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. To ensure your confidence in your vehicle. Acura is extending the warranty coverage for starter and starter relays and a valve adjustment related to this condition to 10 years from the original date of purchase with no mileage limitation. This warranty extension provides coverage for the original owner and any subsequent owners. No action is required on your part unless you experience a problem."
Defect Code 6AX,2022-07-07. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. "Customer letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Acura is providing a product update with new PGM-FI software update to fix this issue. In addition, to ensure your confidence in your vehicle, Acura is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation. This warranty extension provides coverage for the original owner and any subsequent owners. No action is required on your part unless you experience a problem."
14054 JN42022-05-09. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION; ELECTRICAL SYSTEM. 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.
TPMS Light On2022-05-09. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; ELECTRICAL SYSTEM. American Honda (AHM) is investigating certain 2015 TLXs, 2016 ILXs, MDXs, & RDXs with the TPMS light ON at TQI. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
2015 TLX Brake J2022-05-09. Service bulletin. PARKING BRAKE; WHEELS; ELECTRICAL SYSTEM. American Honda (AHM) is investigating certain 2015 TLXs with a client reporting on ignition start, the Electronic Parking Brake (EPB) will not release causing one or both rear wheels not to move and/or "Check Parking Brake" warning message displays in MID. To fully understand the cause of this occurrence, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
Electronic Parki2022-05-09. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE. American Honda (AHM) is investigating certain 2015 TLXs with a client reporting on ignition start, the Electronic Parking Brake (EPB) will not release causing one or both rear wheels not to move and/or "Check Parking Brake" warning message displays in MID. To fully understand the cause of this occurrence, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
B22-0092022-05-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Service bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the client can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button.
B22-0082022-05-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Service bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
B22-0092022-04-07. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE. "Service bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the client can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button. Acura is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation."
B22-0082022-04-07. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. "Service bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button."
SB-14-037 002852021-05-13. Service bulletin. ELECTRICAL SYSTEM. BACKGROUND 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. For your reference, a list of changes is included at the end of this bulletin.
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.
B19-0032020-10-21. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Service Bulletin - During a downshift from 9th or 8th gear to 7th gear or lower, a miscalculation in the TCM software causes the MIL to come on with DTC P0716 (input shaft [mainshaft] speed sensor [range/performance]).
BPaS012820202020-02-05. Service bulletin. ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2016 MDXs & 2015-2017 TLX AWDs with a client complaint of a no auto re-start condition after going into an auto idle stop. Customer should have been able to re-start the vehicle by placing the gear into the Park position and pressing the Start button. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
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]).
BPaS110520189052018-12-03. Service bulletin. ELECTRICAL SYSTEM. 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.
BPaS111320189032018-11-30. Service bulletin. ELECTRICAL SYSTEM. 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.
BPaS101720189062018-10-29. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2019 TLXs with a client complaint of the Malfunction Indicator Lamp (MIL) on with DTC P0420 (Rear Bank Catalyst System Efficiency Below Threshold [Bank 2]) and/or P0430 (Front Bank Catalyst Sytem Efficiency Below Threshold [Bank 2]) stored. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BPaS101720189052018-10-29. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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.
BPaS091720189082018-10-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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.
BPaS083120189072018-09-17. Service bulletin. ELECTRICAL SYSTEM. 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.
BPaS081520189062018-09-17. Service bulletin. ELECTRICAL SYSTEM. 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.
BPaS072720189062018-08-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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
BPaS070920189052018-08-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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.

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