AC onboard charger failure preventing Level 2 charging
ELECTRICAL SYSTEM
35 NHTSA complaints · 2025-01 → 2026-06
“Onboard charger (OBC), which is the unit that converts AC power (what home wall outlets have) to DC power (what the battery holds/uses has failed 3 times now in less than a year of ownership. Brand new car, leased from Polestar”
“The onboard charger has failed twice now in less than 1,800 miles. Bought the car new and it has been in the shop this time for 31 days and parts are not available to fix it until at least Sept. 30th”
“On-board AC charger failure. Confirmed by dealer, parts on 4-6 week backorder. System gave two different messages”