Electric vehicle maker Polestar has recalled thousands of its Polestar 2 sedans.

The voluntary safety recall stems from faulty inverters. The part is responsible for moving energy stored in the battery to the electric motor that propels the EV. The total number of affected vehicles delivered to customers is 4,586.

In addition, a service recall was issued for the High Voltage Coolant Heater, which provides cabin and high voltage battery heating. The company said the parts were also discovered to be faulty and need to be replaced. Just over 3,000 customers are included in this recall, Polestar said.

Polestar, which is owned by Volvo Cars and Chinese parent company Geely (GELYF), said affected vehicle owners will be notified by email about the recall starting Nov. 2.

To remedy the issue, Polestar said hardware updates will be made in a single service visit. Undelivered vehicles will also be updated, which the automaker said could cause delivery delays. All vehicles will also be upgraded with new software through over-the-air updates when available.

Polestar said in a statement to customers, “We recognize the importance of updating our customers. In order to successfully address the issues, we have needed to ensure that appropriate investigations are made before customers are informed. We appreciate our customers’ patience as we follow the necessary process.”

This is not the first recall for Polestar, which issued an earlier recall for several of its electric vehicles, also in October, because they abruptly stopped while driving, TechCrunch reported. The recalled cars were not involved in any accidents, and the issue was repaired with a software update, Polestar CEO Thomas Ingenlath said.

Polestar 2
Polestar 2 all-electric car from Volvo Cars. Volvo Cars/ Polestar.com