# Service bulletin BPaS01062021904

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.

- Type: Service bulletin
- NHTSA id: 10185524
- Published by NHTSA: 2021\-01\-14
- Manufacturer's number: BPaS01062021904
- Manufacturer's date: 2021\-01\-06
- NHTSA component: VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

## NHTSA's summary

Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2019\-2020 MDXs with a client complaint of a blower motor noise. The noise can be described as a high pitch or a whistle noise. To better 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 document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10185524-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10185524-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Glass, wipers and mirrors

## Vehicles listed

- 2019 to 2020 ACURA MDX

## Other bulletins for the same vehicles and component

- [B25\-003](/bulletins/11023136.md), 2025-09-16, Service bulletin: VISIBILITY/WIPER. Service Bulletin \- An uneven sealing surface allows moisture to enter the inner taillight\(s\), causing one or both of the inner taillights not to work.
- [B25\-003](/bulletins/11020860.md), 2025-07-23, Service bulletin: VISIBILITY/WIPER. Service Bulletin \- An uneven sealing surface allows moisture to enter the inner taillight\(s\), causing one or both of the inner taillights not to work.
- [B25\-003](/bulletins/11017330.md), 2025-04-29, Service bulletin: VISIBILITY/WIPER. Service Bulletin \- An uneven sealing surface allows moisture to enter the inner taillight\(s\), causing one or both of the inner taillights not to work.
- [B23\-024](/bulletins/11002724.md), 2024-07-01, Service bulletin: VISIBILITY/WIPER. Service Bulletin \- Client complaint of A/C not blowing cold air due to oil/refrigerant leak from the A/C compressor shaft seal.
- [B23\-024](/bulletins/10249632.md), 2024-02-03, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY. Service Bulletin \- Customers have complained that the air conditioning system is not blowing cold air due to Oil/Refrigerant leaking from the A/C compressor shaft seal.
- [B23\-024](/bulletins/10239511.md), 2023-07-21, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY. Service Bulletin \- Client complaint of A/C not blowing cold air due to a Oil/Refrigerant leak from the A/C compressor shaft seal.
- [B23\-024](/bulletins/10238825.md), 2023-07-06, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY. Service Bulletin \- Honda has received customer complaints of the air conditioning system not blowing cold air due to an Oil/Refrigerant leak from the A/C compressor shaft seal.
- [B23\-013](/bulletins/10237173.md), 2023-06-02, Service bulletin: STRUCTURE; VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE:INTERIOR PANELS:SUN VISOR. Service Bulletin \- A driver can notice loss of auto function, or no function, of the sunroof glass/sunshade due to Motor\-Control Unit error code in the clock frequency check falsely detecting a failure.
- [BTI\&12132022902](/bulletins/10228201.md), 2022-12-21, Service bulletin: VISIBILITY. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2022 MDXs \& 2020\-2022 RDXs with a client complaint of the auto\-open/close function on the sunshade/sunroof being lost \(client has to continuously press on the button for movement\). To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
- [B20\-019](/bulletins/10215510.md), 2022-07-07, Service bulletin: SEATS; EQUIPMENT. "Service bulletin \- When speeding up, slowing down, stopping, or turning, you hear or feel a noticeable clicking/popping from the driver's and/or front passenger's seat\-back. Clients sometimes compare this to someone kicking the back of the seat. This sensation can also happen when adjusting the seat or shifting your weight in it."

JSON: [/v1/bulletins/10185524](/v1/bulletins/10185524)

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