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Service bulletins for the 2018 Acura MDX

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.

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

By type

By component

By trouble code

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

Bulletins, newest first
BPaS100920199032019-10-26. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018-2019 MDXs & TLXs with a client complaint of a chirp noise heard from inside the cabin or coming from the engine compartment. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BPaS092520199032019-10-03. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018-2019 MDXs & TLXs with a client complaint of a chirp noise heard from inside the cabin or coming from the engine compartment. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BPaS090920199032019-09-18. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018-2019 MDXs & TLXs with a client complaint of a chirp noise heard from inside the cabin or coming from the engine compartment. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BPaS081420199042019-08-20. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018-2019 MDXs & TLXs with a client complaint of a chirp noise heard from inside the cabin or coming from the engine compartment. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BPaS073020199032019-08-03. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018-2019 MDXs & TLXs with a client complaint of a chirp noise heard from inside the cabin or coming from the engine compartment. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
B18-0732019-01-05. Service bulletin. FUEL SYSTEM, GASOLINE; LATCHES/LOCKS/LINKAGES. Service bulletin - The fuel fill door rear edge does not line up properly when closed. The fuel fill door latching mechanism does not line up properly.
B16-0082018-10-01. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. Service bulletin - The high pressure fuel pump area chirps after the engine is warm. The high pressure fuel pump is making a chirp.
B16-0082018-05-14. Service bulletin. ENGINE; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. Service bulletin - The high pressure fuel pump area chirps after the engine is warm. The high pressure fuel pump is making a chirp noise. NOTE: This noise does not impact the pump, engine function, or reliability.
B18-0072018-04-16. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. Service bulletin - The client is unable to insert the fuel nozzle into the filler neck and fuel the vehicle in cold weather. Water or moisture has entered the fueling area and frozen the capless fuel shutter set in the fuel filler neck.
B18-0072018-02-21. Service bulletin. FUEL SYSTEM, OTHER. Service bulletin - The client is unable to insert the fuel nozzle into the filler neck and fuel the vehicle in cold weather. Water or moisture has entered the fueling area and frozen the capless fuel shutter (mis-fuel inhibit device) in the fuel filler neck.

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