WenmarOpen by Wenmar Pro

Service bulletin BBTS210401

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 id10190540
Published by NHTSA2021-04-21
Manufacturer's numberBBTS210401
Manufacturer's date2021-04-13
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Tech Line Summary Article - We are receiving reports that a few dealers have found the lower rear engine cover cracked when doing the PDI. Inspect this cover as soon as the vehicles arrive at your dealer and any vehicles currently in your new car inventory. If you find a cracked cover, order, and replace the cover with (P/N 74114-TYA-A00) and promptly file a warranty claim using Labor Operation Number: 8131M1.

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

Vehicles listed
ACURA MDX2022

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

Other bulletins for the same vehicles and component
ONL6AX022025B2025-03-05. Other. Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engaging, your vehicle may not automatically restart.
B24040A2024-05-15. Other. Service News - Due to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Readiness status group. Due to some customer’s driving patterns, they may not drive in the fashion needed to operate the VTEC (EGR/VVT) that only operates above 5,350 rpm to run the OBD monitoring. Therefore, the EGR/VVT OBD monitor group readiness status is not set to “Complete” when the customer presents their vehicle to a Smog Check station for inspection.
ONL6AX01102024B2024-01-17. Service bulletin. Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engaging, your vehicle may not automatically restart.
B23-0352024-01-17. Service bulletin. Service Bulletin - The MIL comes on during vehicle operation due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441 (Evaporative Emission (EVAP) System Purge Flow Malfunction).
B23-0352023-12-23. Service bulletin. Service Bulletin - Due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441 (Evaporative Emission (EVAP) System Purge Flow Malfunction).
B23-0012023-11-29. Service bulletin. 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.
BBOM111020239012023-11-29. Service bulletin. Dealer Message - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the client can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
B23-0112023-08-03. Service bulletin. Service Bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the client can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
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.
BTI&041220239012023-04-22. Service bulletin. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2023 MDX Type S vehicles with a client complaint of an engine noise that can be described as rattling, buzzing or grinding. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.