# Service bulletin RD21\-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: 10189998
- Published by NHTSA: 2021\-04\-06
- Manufacturer's number: RD21\-001
- Manufacturer's date: 2021\-03\-09
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT

## NHTSA's summary

Electric Pressure Relief Valve – Circuit Open

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189998-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189998-9999.pdf)

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

## Components

Electrical system, Engine, Equipment and accessories

## Vehicles listed

- VOLVO VOLVO TRUCK

JSON: [/v1/bulletins/10189998](/v1/bulletins/10189998)

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