2025 Volvo EX90

The contact owns a 2025 Volvo EX90. The contact stated that while using the house charger, the breaker tripped. The check connection message was displayed. The vehicle failed to charge at the residence. The vehicle was later taken to the local dealer, who was unable to charge the vehicle. The contact eventually used a standalone charging system to charge the vehicle. The vehicle was taken to another local dealer, Subaru of Melbourne Service Center (4340 W New Haven Ave, Melbourne, FL 32904); where it was diagnosed and determined that an unknown part needed to be replaced; however, the part was on backorder. The vehicle was repaired, but the failure recurred. The manufacturer was contacted, and a case was opened. The failure mileage was approximately 80.

My car will not charge at my home power charger or any L1 or L2 AC based power system. It will only charge at higher price fast DC chargers which are limited and not at my house. This is apparently a commonly known flaw with this vehicle that has not been addressed and I am now waiting more than 20 days for a replacement part to be ready.

Was given a 'critical brake fault' warning on the dashboard. Car defaulted into neutral and I was not able to put it park, drive, reverse or even turn off the car (had to keep my foot on the brake until someone could help me push it onto a flat surface). Could not open the car doors from the outside, no resets would work, had to be towed to dealership. Car was left "running" at the dealership for over 24 hours.

While Level 2 charging at home from a NEMA 14-50 receptacle using the Volvo-supplied cable/adapter, charging stopped unexpectedly accompanied by a loud thunk. The central computer restarted and presented a profile setup routine as if the car was new. Stored settings were not retained. Repeated attempts to re-initiate charging resulted in ‘Charging fault’ notifications on the instrument panel and a solid red light on the charging port indicator. The car can no longer charge with AC power, but still charges with Level 3 DC equipment. Also, the car software doesn’t seem to recognize that there is a problem with the vehicle. It shows the status as ‘everything is OK’.

The Grid to High Voltage Converter A (GHCA) is a critical, often failing, component in 2025+ Volvo EX90 and Polestar 3 electric vehicles that converts AC grid power to high-voltage DC for the battery has failed 5 times in my car with no fix from Volvo in the foreseeable future. There are some reports on reddit/ex90 and other owner forums that these failures can cause unsafe voltages and have blown up home chargers. It seems like it is getting to the point where they need to be forced to issue a recall for this part and compensate owners.

Ongoing Software Issues From shortly after delivery through now, the vehicle experiences frequent and recurring warning messages and system failures, including but not limited to: Suspension system warnings Driver assistance and self-driving feature failures One-pedal driving malfunctions Parking camera and sensor errors Other system warnings that appear to be software-related While the vehicle was often still technically drivable, these issues regularly caused the car to operate at reduced functionality, with key safety and convenience features disabled. Although software updates have reduced the frequency of these issues, they still occur intermittently and often require a vehicle reset or time to resolve. Because of these persistent and unpredictable warnings, my family and I have avoided taking this vehicle on long trips out of concern that the car may become unsafe or inoperable while traveling. The vehicle was brought in for service in December 2024 in an attempt to address these software-related issues; however, the service did not resolve the problem at that time. Hardware Failure #1 – GHCA In January 2025, the vehicle experienced a failure of the GHCA component, rendering the all-electric vehicle unable to charge. This occurred shortly after purchase. Service appointment booked: January 27, 2025 Vehicle in shop: aprox 30 days The vehicle was out of service for approximately one full month. During this time, I shared my experience on Reddit due to the severity of the issue and the vehicle’s newness. That post received over 350,000 views, and numerous Volvo EX90 owners reported experiencing the same GHCA failure—many stating they had required multiple replacements of the same component. This strongly suggests a widespread defect rather than an isolated incident. Hardware Failure #2 – GHCA (Repeat Failure) On February 3, 2026, the GHCA failed again, and the vehicle was returned to the dealership for service with no ETA on a fix.