# Service bulletin 23\-NA\-142

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: 10243753
- Published by NHTSA: 2023\-10\-10
- Manufacturer's number: 23\-NA\-142
- Manufacturer's date: 2023\-09\-15
- NHTSA component: POWER TRAIN

## NHTSA's summary

This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if found the cause of the customer's concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243753-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243753-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2022 CHEVROLET EQUINOX
- 2017 to 2021 CHEVROLET EXPRESS
- 2023 CHEVROLET EXPRESS 2500
- 2023 CHEVROLET EXPRESS 3500
- 2017 to 2023 CHEVROLET EXPRESS CUTAWAY VAN
- 2017 to 2023 GMC SAVANA
- 2017 GMC SAVANA 1500
- 2017 to 2018 GMC SAVANA 2500
- 2023 GMC SAVANA 2500
- 2017 to 2018 GMC SAVANA 3500
- 2023 GMC SAVANA 3500

## Recalls for the same vehicles and component

- [2024679](/recalls/tc/2024679.md), 2024-11-07: Powertrain
- [24V839000](/recalls/nhtsa/24V839000.md), 2024-11-07: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

## Other bulletins for the same vehicles and component

- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [PIP5966A](/bulletins/11014622.md), 2025-03-02, Service bulletin: POWER TRAIN. This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
- [PIP5966A](/bulletins/11014621.md), 2025-03-02, Service bulletin: POWER TRAIN. This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
- [16\-NA\-019](/bulletins/11014353.md), 2025-02-19, Service bulletin: POWER TRAIN. This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
- [09\-06\-04\-026Z](/bulletins/11013069.md), 2025-01-23, Service bulletin: ENGINE; POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides information on identifying Non\-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- [08\-07\-30\-035I](/bulletins/11011989.md), 2024-12-19, Service bulletin: POWER TRAIN. This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
- [PIP6018](/bulletins/11011454.md), 2024-12-05, Service bulletin: POWER TRAIN. This Preliminary information communicates to technicians inspection for an incorrectly machined fluid passage in the valve body causing DTC P0841.
- [PIP6014](/bulletins/11011436.md), 2024-12-05, Service bulletin: POWER TRAIN. This Preliminary information communicates for Technicians installing a Service Replacement Transmission Assembly to contact Technical Assistance to make sure unit is not suspect of a snap ring concern prior to installation.
- [04\-06\-01\-029K](/bulletins/11011205.md), 2024-12-04, Service bulletin: POWER TRAIN; STEERING; ENGINE. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
- [24\-NA\-223](/bulletins/11010651.md), 2024-11-19, Service bulletin: POWER TRAIN. This service bulletin informs the technician of an alternate lift procedure that has been developed when the lift plate does not fit the top of the transmission case for 6T30, 6T35, 6T40, 6T45, and 6T50 Transmissions.

JSON: [/v1/bulletins/10243753](/v1/bulletins/10243753)

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