# Service bulletin PIP5853C

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: 10236142
- Published by NHTSA: 2023\-05\-15
- Manufacturer's number: PIP5853C
- Manufacturer's date: 2023\-04\-06
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

This PI communicates to dealers and technicians a possible diode issue in the TCCM, and how to properly diagnose for a diode issue.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236142-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236142-9999.pdf)

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

## Components

Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 2019 CHEVROLET 6500
- 2019 to 2023 CHEVROLET SILVERADO 4500
- 2019 to 2021 CHEVROLET SILVERADO 5500
- 2023 CHEVROLET SILVERADO 5500
- 2019 CHEVROLET SILVERADO 6500
- 2021 to 2023 CHEVROLET SILVERADO 6500
- 2019 CHEVROLET duplicate SILVERADO 5500

## Recalls for the same vehicles and component

- [26V083000](/recalls/nhtsa/26V083000.md), 2026-02-12: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY
- [24V797000](/recalls/nhtsa/24V797000.md), 2024-10-24: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

## Other bulletins for the same vehicles and component

- [23\-NA\-102](/bulletins/10242125.md), 2023-09-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. 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](/bulletins/10239647.md), 2023-07-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
- [PIP5926A](/bulletins/10239164.md), 2023-07-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. 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](/bulletins/10236355.md), 2023-05-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 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.
- [N232399010\-01](/bulletins/10233386.md), 2023-03-31, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). 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.
- [16\-NA\-130](/bulletins/10232711.md), 2023-03-08, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
- [N222383250](/bulletins/10229674.md), 2023-01-11, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Service Update\- Certain vehicles may experience a Malfunction Indicator Lamp \(MIL\). Transmission shift quality may be impacted. Dealers are to replace the Transmission Control Module.
- [N222380840](/bulletins/10226235.md), 2022-11-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. General Motors has decided to conduct a Voluntary Emissions Recall on certain vehicles with a 6.6L engine \(RPO L8T\). The Transmission Control Module \(TCM\) in these vehicles may have been service reprogrammed with incorrect calibrations. If this occurred, the transmission shift quality and timing could be degraded. Dealers are to reprogram the TCM.
- [PIP5621C](/bulletins/10224285.md), 2022-10-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN. 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](/bulletins/10217003.md), 2022-08-02, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). 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.

JSON: [/v1/bulletins/10236142](/v1/bulletins/10236142)

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