Service bulletin 23109
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 | 10237455 |
| Published by NHTSA | 2023-06-06 |
| Manufacturer's number | 23109 |
| Manufacturer's date | 2023-05-12 |
| NHTSA component | VISIBILITY |
NHTSA's summary
Certain EV school bus high-voltage cabin heaters may cause excessive cycling of the HVDU (High-Voltage Distribution Unit), which can result in premature HVDU contactor failure.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Glass, wipers and mirrors
| IC BUS EVSB | 2022 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.