WenmarOpen by Wenmar Pro

Service bulletin B17-009

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10127368
Published by NHTSA2018-01-29
Manufacturer's numberB17-009
Manufacturer's date2017-10-18
NHTSA componentPOWER TRAIN; ENGINE AND ENGINE COOLING

NHTSA's summary

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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Transmission and driveline

Vehicles listed
ACURA MDX2016

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V7510002023-11-13. ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
BPS&081220259012025-08-21. Other. Dealer Message - Acura is also implementing an additional (1) twenty-four (24) month period for 2015 model year Acura TLX vehicles, commencing at the expiration of the 10-year warranty extension period for each vehicle, and (2) eighteen (18) month period for 2016 model year Acura TLX/MDX vehicles, commencing at the expiration of the 10-year warranty extension period for each vehicle, for valve adjustment and starter replacement related to this condition under warranty.
B23-0022025-07-09. Service bulletin. 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.
B24-0222025-03-05. Service bulletin. Service Bulletin - The AWD warning light is on with one or more AWD DTCs having been set due to water intrusion into the electric oil pump motor connector area corrodes the terminals.
B16-0082024-09-10. Service bulletin. Service Bulletin - Drivers may experience a chirping sound coming from the engine area with the engine warmed up due to the high pressure fuel pump is making a chirp.
ONL6AX052920242024-06-03. Other. Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engaging, the vehicle may not automatically restart. Acura is providing a product update with a new PGM-FI software update to fix this issue.
B23-0092023-04-27. Service bulletin. Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to precipitation and then freezing temperatures. Water can enter the starter motor. In cold temperatures the water can freeze, preventing the starter motor from cranking the engine.
B23-0022023-03-29. Service bulletin. 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.
ONL6AX031020232023-03-18. Service bulletin. Product Update - Under certain circumstances, after coming to a stop and the idle stop feature engaging, the vehicle may not automatically restart. Acura is providing a product update with a new PGM-FI software update to fix this issue.
ONL6T603102023-32023-03-18. Service bulletin. Warranty Extension - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart.
ONL6T6031020232023-03-18. Service bulletin. Warranty Extension - Warranty Extension reimbursement form for engine idle stop repairs made before the warranty extension notice date.