# Service bulletin B21\-021

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: 10196882
- Published by NHTSA: 2021\-06\-11
- Manufacturer's number: B21\-021
- Manufacturer's date: 2021\-06\-01
- NHTSA component: POWER TRAIN

## NHTSA's summary

Service Bulletin \- The MIL comes on with DTC P0236 \(Turbocharger Boost Sensor Circuit Range/Performance Problem\) stored.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10196882-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10196882-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P0236

## Vehicles listed

- 2019 to 2021 ACURA RDX
- 2021 ACURA TLX

## Recalls for the same vehicles and component

- [2021731](/recalls/tc/2021731.md), 2021-12-03: Powertrain
- [21V939000](/recalls/nhtsa/21V939000.md), 2021-12-02: POWER TRAIN:DRIVELINE:DRIVESHAFT

## Other bulletins for the same vehicles and component

- [B23\-010](/bulletins/10252481.md), 2024-04-03, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Service Bulletin \- During engine start in cold conditions, a miscalculation in the PCM causes the air\-fuel ratio to exceed DTC rich criteria.
- [B21\-028](/bulletins/10203800.md), 2021-12-03, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Service Bulletin \- The MIL comes on with DTC P061B \(PCM Internal Malfunction\) is stored.
- [B21\-028](/bulletins/10202909.md), 2021-11-03, Service bulletin: POWER TRAIN; ENGINE AND ENGINE COOLING. Service Bulletin \- The MIL comes on with DTC P061B \(PCM Internal Malfunction\) is stored.
- [B21\-028](/bulletins/10201209.md), 2021-09-09, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN. Service Bulletin \- The MIL comes on with DTC P061B \(PCM Internal Malfunction\) is stored.
- [B20\-032](/bulletins/10200851.md), 2021-09-02, Service bulletin: POWER TRAIN; VEHICLE SPEED CONTROL. Service Bulletin \- The AWD indicator comes on with DTC C1843\-62 \(left rear differential fluid pressure deviation\) and/or DTC C1844\-62 \(right rear differential fluid pressure deviation\).
- [B21\-028](/bulletins/10200367.md), 2021-08-13, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN. Service Bulletin \- The MIL comes on with DTC P061B \(PCM Internal Malfunction\) is stored.
- [B20\-032](/bulletins/10189904.md), 2021-04-05, Service bulletin: POWER TRAIN; VEHICLE SPEED CONTROL. Service Bulletin \- The AWD indicator comes on with DTC C1843\-62 \(left rear differential fluid pressure deviation\) and/or DTC C1844\-62 \(right rear differential fluid pressure deviation\).
- [B18\-045](/bulletins/10145033.md), 2018-10-01, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Service bulletin \- Some troubleshooting procedures for a loss of communication or F\-CAN malfunction DTC?s require running the F\-CAN Bus Connected Unit Check using the i\-HDS. There are certain control units that may be reported as Not Available in the Status column even though they are properly communicating.

JSON: [/v1/bulletins/10196882](/v1/bulletins/10196882)

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