WenmarOpen by Wenmar Pro

Service bulletin 37515.1.0

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11035007
Published by NHTSA2026-07-14
Manufacturer's number37515.1.0
Manufacturer's date2026-05-06
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This is a Tech Journal - If a customer experiences an Electric System Limited message along with reduced performance, and there are temperature-related DTCs in the HLCM, the root cause may be restricted coolant flow to the HLCM. Please follow the advice under "Service" to test the HLCM cooling performance. HLCM (High to Low Voltage Converter Module)

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.

Vehicles listed
POLESTAR POLESTAR 32025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.