# Service bulletin SB26\-K\-001

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: 11028338
- Published by NHTSA: 2026\-02\-05
- Manufacturer's number: SB26\-K\-001
- Manufacturer's date: 2026\-01\-30
- NHTSA component: POWER TRAIN
- Manufacturer's system: TRANSMISSION

## NHTSA's summary

SERVICE BULLETIN \- SOME CUSTOMERS MAY COMPLAIN THAT THE VEHICLE WILL NOT MOVE FORWARD AFTER SHIFTING INTO DRIVE FROM PARK OR FROM REVERSE. DEALERS MAY FIND THAT THIS CONDITION IS CAUSED BY A SPACER PLATE IN THE VALVE BODY BEING OUT OF SPECIFICATION. AS A RESULT OF THE SPACER PLATE BEING OUT OF SPEC, THE CHECK BALL WILL BECOME WORN CAUSING THE VEHICLE NOT TO MOVE INTO DRIVE FROM PARK OR REVERSE. ISUZU RECOMMENDS DEALERS TO REPLACE BOTH THE SPACER PLATE AND ALL CHECK BALLS.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028338-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028338-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2015 to 2021 ISUZU N\-SERIES

JSON: [/v1/bulletins/11028338](/v1/bulletins/11028338)

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