WenmarOpen by Wenmar Pro

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10196882
Published by NHTSA2021-06-11
Manufacturer's numberB21-021
Manufacturer's date2021-06-01
NHTSA componentPOWER TRAIN

NHTSA's summary

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

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

Transmission and driveline

Trouble codes named

P0236

Vehicles listed
ACURA RDX2019, 2020, 2021
ACURA TLX2021

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

Recalls for the same vehicles and component
20217312021-12-03. Powertrain
21V9390002021-12-02. POWER TRAIN:DRIVELINE:DRIVESHAFT

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
B23-0102024-04-03. Service bulletin. Service Bulletin - During engine start in cold conditions, a miscalculation in the PCM causes the air-fuel ratio to exceed DTC rich criteria.
B21-0282021-12-03. Service bulletin. Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
B21-0282021-11-03. Service bulletin. Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
B21-0282021-09-09. Service bulletin. Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
B20-0322021-09-02. Service bulletin. 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).
B21-0282021-08-13. Service bulletin. Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
B20-0322021-04-05. Service bulletin. 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).
B18-0452018-10-01. Service bulletin. 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.