Service bulletin N232399010-01
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 | 10233386 |
| Published by NHTSA | 2023-03-31 |
| Manufacturer's number | N232399010-01 |
| Manufacturer's date | 2023-03-31 |
| NHTSA component | POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM) |
NHTSA's summary
Service Update Revision: Certain vehicles may experience an intermittent loss of communication with the Transmission Control Module (TCM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates. Dealers will perform a TCM module reprogramming.
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, Automatic transmission, Transmission control module
| CADILLAC CT4 | 2023 |
|---|---|
| CADILLAC CT5 | 2023 |
| CADILLAC ESCALADE | 2023 |
| CADILLAC ESCALADE ESV | 2023 |
| CHEVROLET SILVERADO 1500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN | 2023 |
| CHEVROLET TAHOE | 2023 |
| GMC SIERRA 1500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON | 2023 |
| GMC YUKON XL | 2023 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 23-NA-102 | 2023-09-09. Service bulletin. This service bulletin provides a procedure to repair wiring to correct customer concerns of Driveability, Hesitation, Transmission Shifting Rough/Harsh, Malfunction Indicator Lamp (MIL) Illuminated. |
|---|---|
| 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. |
| N222392670 | 2023-05-17. Service bulletin. Service Update. Certain vehicles may have a condition where the transmission reaction carrier (an internal component) may have been damaged during assembly. Dealers are to replace the transmission. |
| 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. |