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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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
BPaS031920189012018-04-16. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; 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.
BPaS031620189012018-04-16. Service bulletin. ENGINE AND ENGINE COOLING; 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.
BPaS031420189012018-04-16. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; 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.
BPaS031220189012018-04-16. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; 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.
BPaS030220189032018-04-16. Service bulletin. ENGINE AND ENGINE COOLING; 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.
BPaS030220189012018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2017 TLXs with a client complaint of A/C not cooling or blowing warm air. 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.
B17-0272018-03-13. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service bulletin - American Honda is extending the warranty on the 9-speed transmission warmers to 10 years from the original date of purchase with unlimited mileage. This warranty covers vehicles where the engine coolant and ATF mix because of an internal leak in the 9-speed transmission warmer.
B17-0122018-03-13. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement. These vehicles previously had the transmission replaced because the transmission warmers leaked. In rare cases, these vehicles may have also overheated but because the issue was under investigation, a standard repair procedure hadn?t been developed. Further action is needed before the vehicle is completely repaired.
B17-0112018-03-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement.
Customer Letter2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Customer letter - On some 2015?16 TLX vehicles, the automatic transmission fluid (ATF) warmer was improperly manufactured and may allow the engine coolant and ATF to mix. If the coolant and ATF mix, the engine and transmission may be damaged and require replacement.
B17-0272018-01-29. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service bulletin - American Honda is extending the warranty on the 9-speed transmission warmers to 10 years from the original date of purchase with unlimited mileage. This warranty covers vehicles where the engine coolant and ATF mix because of an internal leak in the 9-speed transmission warmer.
B17-0122018-01-29. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement. These vehicles previously had the transmission replaced because the transmission warmers leaked. In rare cases, these vehicles may have also overheated but because the issue was under investigation, a standard repair procedure hadn?t been developed. Further action is needed before the vehicle is completely repaired.
B17-0112018-01-29. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement.
Customer Letter2017-12-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING. Customer letter - On a limited number of 2015?16 TLX vehicles, the automatic transmission fluid (ATF) warmer was improperly manufactured and may allow the engine coolant and ATF to mix. If the coolant and ATF mix, the engine and transmission may be damaged and require replacement. If the ATF warmer allows coolant and ATF to mix, you may notice one or more of the following symptoms: ? The vehicle overheats ? The transmission shifts poorly ? The transmission chirps during 3-4 shift
B16-0082017-12-05. Service bulletin. ENGINE. Service bulletin - There is a chirping coming from the engine area with the engine warmed up. The high pressure fuel pump is making a chirp.
B17-0272017-10-12. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Service bulletin - American Honda is extending the warranty on the 9-speed transmission warmers to 10 years from the original date of purchase with unlimited mileage. This warranty covers vehicles where the engine coolant and ATF mix because of an internal leak in the 9-speed transmission warmer.
B17-0122017-10-12. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement. These vehicles previously had the transmission replaced because the transmission warmers leaked. In rare cases, these vehicles may have also overheated but because the issue was under investigation, a standard repair procedure hadn't been developed. Further action is needed before the vehicle is completely repaired.
B17-0112017-10-12. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement.
B17-0112017-10-05. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement.
B17-0112017-10-04. Service bulletin. ENGINE AND ENGINE COOLING. Service bulletin - Some 9-speed transmission warmers were improperly manufactured and allow the engine coolant and ATF to mix. If the fluids mix, the engine and transmission may be permanently damaged and require replacement.
B17-0342017-09-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE. 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.
B17-0302017-09-27. Service bulletin. ENGINE. Service bulletin - The water pump seized or the drive belt shredded. The water pump bearing is out of specification.
B150392017-09-27. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Service bulletin - The transmission end cover leaks on vehicles with 9-speed A/T. During assembly, the transmission end cover sealing gasket gets torn.
BPaS021520179012017-07-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Dealer message - American Honda (AHM) is investigating certain 2015-2017 TLXs with a client complaint of the Malfunction Indicator Lamp (MIL) On with the DTC P16E5 (LIN Communication Error [PCM-DC-DC Converter]), P0A11 (DC-DC Converter Activation Circuit Malfunction) and/or P0A94 (DC-DC Converter Performance Problem) stored. 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.
DLR MSG - RFV -2017-07-28. Service bulletin. ENGINE; SUSPENSION. Dealer message - American Honda (AHM)is investigating certain 2015 TLXs with clients reporting a vibration at highway speeds. To fully understand the cause of this condition, AHM would like to inspect 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.