# Service bulletin PIP5894

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: 10230699
- Published by NHTSA: 2023\-01\-30
- Manufacturer's number: PIP5894
- Manufacturer's date: 2022\-12\-15
- NHTSA component: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\)

## NHTSA's summary

This Preliminary information communicates proper alignment of the transfer case actuator during repair or actuator replacement

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10230699-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10230699-9999.pdf)

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

## Components

Transmission and driveline, Transfer case

## 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

## Other bulletins for the same vehicles and component

- [PIP5825](/bulletins/10234238.md), 2023-04-17, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). This Preliminary information communicates A vehicle may come in with a internal transfer case concern. Internal fault , Dealers need to disassemble to the point of failure and then do a cost comparison to determan repair VS. replacement.
- [PIP5810A](/bulletins/10224291.md), 2022-10-17, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). This Preliminary information communicates that the tool for the HD transfer cases to install the input seal during a repair is incorrect and a new tool is in development.
- [N212336800](/bulletins/10200193.md), 2021-08-09, Service bulletin: EQUIPMENT:ELECTRICAL; POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); EQUIPMENT. Service Update. On certain vehicles, the thrust washer was not installed on the transfer case reduction carrier assembly. Dealers are to replace the transfer case.
- [19NA136](/bulletins/10186069.md), 2021-02-01, Service bulletin: PARKING BRAKE; EQUIPMENT; POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.
- [PIE0560A](/bulletins/10175858.md), 2020-06-01, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Service 4WD message being visible on the driver information center \(DIC\).
- [19NA216](/bulletins/10171898.md), 2020-03-02, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); EQUIPMENT. This technical bulletin provides the tech with a procedure to check the t\-case for loose fasteners and to re\-torque if the cause of the concern.
- [PIP5580C](/bulletins/10164745.md), 2019-09-16, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary information communicates the exchange program to assist engineering in identification of any early production issues.
- [19NA136](/bulletins/10163252.md), 2019-07-29, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides a procedure to change the diff fluid if found the cause of the customers concern.
- [PIP5580A](/bulletins/10151884.md), 2018-12-17, Service bulletin: ENGINE; POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). This Preliminary information communicates the exchange program to assist engineering in identification of any early production issues.
- [PIP3366C](/bulletins/10143757.md), 2018-08-20, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic transmissions and 4 wheel drive may exhibit a condition of grinding/ratcheting type noise when shifting the automatic transmission into park while the transfer case is in 4 wheel drive low \(4LO\) range. Dealers technician\&\#39;s are advised this condition should be deemed a normal characteristic of 4WD low operation.

JSON: [/v1/bulletins/10230699](/v1/bulletins/10230699)

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