# Service bulletin B20\-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.

- Type: Service bulletin
- NHTSA id: 10171748
- Published by NHTSA: 2020\-02\-26
- Manufacturer's number: B20\-009
- Manufacturer's date: 2020\-02\-21
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Service Bulletin \- There is a high\-pitched sound from the speakers while on a Bluetooth HandsFreeLink \(HFL\) call.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171748-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171748-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2018 to 2020 ACURA RLX
- 2018 to 2019 ACURA RLX HYBRID

## Other bulletins for the same vehicles and component

- [ONL6R507142023](/bulletins/10239512.md), 2023-07-21, Service bulletin: STRUCTURE; ELECTRICAL SYSTEM; STEERING. Owner Notification Letter \- Under certain circumstances, abnormal noise may be heard from the rear when driving straight or making small side\-to\-side turning movements with the steering wheel. The MIL may also illuminate with certain DTC codes.
- [ONLA8E20220830](/bulletins/10219544.md), 2022-09-09, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Owner notification \- Our records indicate that a Emissions Recall has not been completed on this vehicle. When the powertrain control module \(PCM\) detects a malfunction in one of the odd number transmission gears, it will set one of four diagnostic trouble codes \(DTCs\). Due to inappropriate calibration of the PCM, the On Board Diagnostic \(OBD\) system cannot properly clear the transmission permanent DTC as required.
- [ONLA8E11022020](/bulletins/10182477.md), 2020-11-11, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Owner Notification Letter \- When the powertrain control module \(PCM\) detects a malfunction in one of the odd number transmission gears, it will set one of four diagnostic trouble codes \(DTCs\). Due to inappropriate calibration of the PCM, the On Board Diagnostic \(OBD\) system cannot properly clear the transmission permanent DTC as required.
- [BBOM09152020](/bulletins/10180020.md), 2020-09-22, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Dealer Message \- Today, September 15, 2020, Acura is announcing a stop sale and emissions recall for certain 2017\-2020 MDX Sport Hybrid and 2014, 2016\-2020 RLX Sport Hybrid vehicles that may not properly clear specific diagnostic trouble codes \(DTC\). Presence of these codes may prevent the vehicle from passing a smog test. Refer to your eResponsibility report or do an iN VIN status inquiry to determine which units in your inventory are affected.
- [B20\-040](/bulletins/10180019.md), 2020-09-22, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:GEARS. "Service Bulletin \- When the PCM detects a malfunction in one of the odd number transmission gears, it will set one of the following DTCs: \-P073F \(unable to engage gear 1\) \-P074B \(unable to engage gear 3\) \-P074D \(unable to engage gear 5\) \-P074F \(unable to engage gear 7\) Due to inappropriate calibration of the PCM, the OBD system cannot properly clear the transmission permanent DTC as required."
- [B20\-009](/bulletins/10171548.md), 2020-02-20, Service bulletin: ELECTRICAL SYSTEM. Service Bulletin \- There is a high\-pitched sound from the speakers while on a Bluetooth HandsFreeLink \(HFL\) call.
- [B20\-009](/bulletins/10171188.md), 2020-02-11, Service bulletin: ELECTRICAL SYSTEM. Service Bulletin \- There is a high\-pitched sound from the speakers while on a Bluetooth HandsFreeLink \(HFL\) call.

JSON: [/v1/bulletins/10171748](/v1/bulletins/10171748)

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