Service bulletin N212354170-02
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 | 10210499 |
| Published by NHTSA | 2022-04-26 |
| Manufacturer's number | N212354170-02 |
| Manufacturer's date | 2022-04-25 |
| NHTSA component | POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL |
NHTSA's summary
Emission Recall - General Motors has decided to conduct a Voluntary Emissions Recall to improve the operation of the regeneration cycle on certain 2020 Chevrolet Silverado and GMC Sierra vehicles with a 6.6L diesel engine. The recall will address that currently under certain operating conditions, higher than necessary temperatures may be used to clean the Diesel Particulate Filter (DPF) during the regeneration cycle. Dealers are to reprogram the Engine Control Module (ECM) and Transmission Control Module (TCM).
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
Electrical system, Engine, Transmission and driveline, Automatic transmission, Transmission control module
| CHEVROLET SILVERADO 2500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| CHEVROLET SILVERADO 3500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 26V083000 | 2026-02-12. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY |
|---|---|
| 24V797000 | 2024-10-24. POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 17-NA-066 | 2023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test. |
|---|---|
| PIP5926A | 2023-07-17. Service bulletin. This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case. |
| PIP5853C | 2023-05-15. Service bulletin. This PI communicates to dealers and technicians a possible diode issue in the TCCM, and how to properly diagnose for a diode issue. |
| 16-NA-130 | 2023-03-08. Service bulletin. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear. |
| PIP5621C | 2022-10-17. Service bulletin. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC. |
| N222376590 | 2022-08-02. Service bulletin. Service Update - certain vehicles may have a transmission control module that may not have been correctly programmed. Dealers are to reprogram the transmission control module. |
| 22NA022 | 2022-06-21. Service bulletin. This Informational bulletin advises the technician of a possible oil leak at the front cover and how to diagnose it to verify if it is coming from the seal or not. |
| 21NA214 | 2022-06-21. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp being illuminated. They may also comment on multiple transmission issues including harsh or delayed shifts, slip, surge, shudder, noise, whine, growl, shake and/or vibration. As well as the exhaust brake not working or that they do not feel it. Technicians may find DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 P20EE, P129F, P16F3, P20FF, P226D, P249D, P249E, P11CC and / or P11D5. |
| 21NA214 | 2022-06-21. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp Illuminated, Harsh or Delayed Transmission Shifts Including Slip, Surge, Shudder, Noise, Whine, Growl, Shake and/or Vibration, DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 and/or P20EE Set Current or in Recent History. |
| PIP5834 | 2022-03-14. Service bulletin. This Preliminary information communicates that the service 4wd message related to C119E is under investigation for a repair. |