2021 Volvo XC90 electrical problems

Filed Nov 4, 2026 · Electrical, Engine · VA

Electrical system shutdown during use rendering car unable to shift out of park. According to dealer, the extensive electrical and wiring damage resulted from a clogged sunroof drain. This issue is well documented for a decade or longer and is clearly a safety problem (vs "maintenance" or "wear & tear") as vehicles are rendered useless on the roadway. I do not understand why the federal safety agency has not issued a recall. Is this the federal safety agency Mission Statement no longer relevant? "the federal safety agency's MISSION Save lives, prevent injuries and reduce economic costs due to road traffic crashes, through education, research, safety standards and enforcement activity."

Filed Oct 29, 2026 · Body, Electrical · MN

The rear passenger-side door latch on my 2021 Volvo XC90 failed, and the door will not open from inside or outside. This prevents an occupant from exiting through that door, including in an emergency or after a crash. The failure occurred on XXX at approximately 45,000 miles while the vehicle was in normal use. I have small children and they are now not able to get out of the car so this is a major safety issue. There was no crash or injury. Borton Volvo ([XXX]) diagnosed a failed door latch assembly and quoted $1,106 to replace it. Volvo declined goodwill coverage. Owner reports indicate door latch failures are common on 2016+ XC90 models INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 16, 2026 · Electrical · PA

The check engine light on our Volvo XC90 Plug-in Hybrid came on stating "Hybrid System Failure Service Required". The vehicle would no longer accept a charge. A service appointment was made and the technician found that there was a fault with cell module A. A case was started but we were told the part was on backorder.

Filed Sep 25, 2026 · Electrical · CA

My 2021 Volvo XC90 Recharge (plug-in hybrid) has been at Volvo Cars Dublin, Dublin CA since June 15, 2026 for a failed high-voltage battery cell module requiring replacement. The replacement part is on national backorder with no estimated availability. The vehicle has been out of service for over 100 days and remains undrivable. A failed high-voltage battery cell module in a plug-in hybrid is a safety concern, and the indefinite nationwide backorder suggests this defect and parts shortage may affect other owners. Volvo corporate (case 07207782) has provided no repair date.

Filed Sep 25, 2026 · Electrical · CA

My 2021 Volvo XC90 Recharge (plug-in hybrid) has been at Volvo Cars Dublin, Dublin CA since June 15, 2026 for a failed high-voltage battery cell module requiring replacement. The replacement part is on national backorder with no estimated availability. The vehicle has been out of service for over 100 days and remains undrivable. A failed high-voltage battery cell module in a plug-in hybrid is a safety concern, and the indefinite nationwide backorder suggests this defect and parts shortage may affect other owners. Volvo corporate (case 07207782) has provided no repair date.

Filed Sep 21, 2026 · Electrical · 60,000 miles · WA

The contact owns a 2021 Volvo XC90. The contact stated that while driving at various speeds and depressing the accelerator or the brake pedal, the vehicle hesitated with the check engine warning light illuminated. The dealer was contacted. The vehicle was taken to the dealer to be diagnosed, and it was determined that the electric rear axle drive system had failed and needed to be replaced. The contact stated that the failure occurred each time the vehicle was driven. The manufacturer was notified of the failure and informed the contact to continue driving the vehicle because the vehicle was safe to drive. The failure mileage was approximately 60,000.

Filed Aug 22, 2026 · Electrical, Engine · WA

In February 2026, my 2021 Volvo XC90 Recharge T8 (VIN: [XXX]) experienced a hybrid battery cell failure. The failure was diagnosed and confirmed by an authorized Volvo dealership (Volvo of Tacoma) and is covered under the vehicle's manufacturer warranty. However, I have been informed that a replacement part may not be available until December 2026 or later — a delay of ten months or more from the original failure date. Volvo has advised me that attempting to charge the vehicle in its current state carries a risk of fire. As a result, I am unable to charge the hybrid system and have had to operate the vehicle on gasoline alone, with fuel costs increasing approximately 3.5x per month. Separately, an independent mechanic has advised me that continued operation of the vehicle without a functioning hybrid battery cell is causing ongoing, worsening mechanical damage over time, separate from the original defect. I have made extensive good-faith efforts to resolve this directly with Volvo Cars USA customer care, including phone calls, an online request form, and direct correspondence, with prolonged periods of no response despite written acknowledgment of the issue on XXX. Given that Volvo itself has identified a fire risk associated with charging this vehicle, combined with an indefinite repair timeline of ten months or more and mechanic-confirmed risk of continued mechanical degradation, I am filing this report to document a potential safety defect in the hybrid battery system of this vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 13, 2026 · Electrical, Fuel system · TX · crash

The contact owns a 2021 Volvo XC90. The contact stated that upon shifting to Drive(D) while the vehicle was on an incline, the vehicle rolled back before moving forward as intended. The contact stated that the failure had been recurring, causing the vehicle to hit a garage door and a brick mailbox on two different occasions. The contact stated that the tailgate was opened and sustained a dent when the vehicle hit the garage door. The contact stated that upon shifting to Reverse(R) on a decline, the vehicle rolled forward before reversing as intended. The contact stated that the failure had caused the vehicle to hit two pedestrians. There were no reported injuries. No police report was filed. The vehicle was taken to the dealer on several occasions, and several unknown repairs were performed; however, the failure persisted. Additionally, the contact stated that the vehicle had experienced difficulty starting on several occasions, leaving the contact stranded while the contact was in the process of taking his son to the emergency room. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The message "Press Knob To Start" was displayed. The contact stated that while driving at 65 MPH, the vehicle suddenly stopped. The message "Hybrid System Failure - Service Required" was displayed, and the message "Performance Reduced" was displayed along with a turtle. The contact was able to restart the vehicle, but the vehicle failed to exceed 5 MPH while driving. The contact was able to pull over to the side of the road. The contact stated that the failure recurred on several occasions. The vehicle was taken to the dealer, where unknown repairs were performed; however the failure persisted. The dealer had recommended the vehicle sale due to the persistent failure. The vehicle was taken to Park Place Volvo(3515 Inwood Rd, Dallas, TX 75209), where the battery cells were recharged, and the hybrid system module and an unknown hybrid system part were replaced; however, the failure persisted.

Filed Mar 7, 2026 · Electrical, Engine · GA

My 2021 Volvo XC90 Recharge has experienced multiple hybrid system failures under Volvo's factory 8-year/100,000-mile hybrid warranty, with fewer than 45,000 miles on the odometer. The high-voltage battery modules have failed multiple times, directly related to recall R10312 (the federal safety agency 25V‑179), which identifies a supplier process deviation in LG battery modules creating a risk of internal short circuit and thermal runaway — an acknowledged fire risk. Critically, my vehicle has suffered two actual battery module failures, not preemptive recall replacements. This places my vehicle in a substantially higher risk category than others in the recall population with no prior symptoms. A vehicle that has already experienced the exact failure mode identified in a safety recall presents a materially greater ongoing safety risk. Additionally, my vehicle suffered a complete ERAD (Electric Rear Axle Drive) failure — a known defect that Volvo acknowledged by releasing a redesigned ERAD2 unit, confirming awareness of this systemic issue. These repeated failures left my vehicle un-drivable and parked at the dealership for more than 6 months, with replacement parts repeatedly placed on backorder, causing severe and prolonged loss of use. I filed a formal complaint with Volvo Customer Care requesting a vehicle buyback. After months of inadequate communication, Volvo declined to buy back the vehicle or offer reasonable trade-in accommodation. Instead, Volvo offered a nominal monetary concession contingent on signing an NDA, which I declined as insufficient given the documented safety risk, repeated failures of a recalled component, extended loss of use, nor out of pocket car rental expenses. I am filing this complaint to ensure my vehicle's actual failures are part of the federal safety agency record for R10312/25V‑179, and to request the federal safety agency evaluate whether Volvo's response to owners who have experienced actual failures — rather than preemptive recall repairs — warrants further regulatory scrutiny.

Filed Feb 13, 2026 · Electrical, Engine · AZ

The ERAD (Electric Rear Axle Drive) transmission on my 2021 XC90 T8 Recharge has suffered an internal failure at approximately 112,550 miles. The vehicle makes loud grinding and slamming noises from the rear drivetrain and locks up when attempting to drive, making the vehicle completely undrivable. The dealership (Volvo Cars Gilbert, AZ) diagnosed the ERAD clutch as slamming and suspects internal gears are missing teeth. A software update was attempted but did not resolve the mechanical failure. The ERAD transmission needs full replacement at a quoted cost of $5,211.56 (part number 32324105-9). This is a known failure point on the T8 platform and Volvo has redesigned this component (ERAD2) for newer models due to reliability issues with the original design. This failure presents a safety concern as the rear drivetrain can lock up unexpectedly during driving. This ERAD failure occurred alongside two other hybrid system component failures within a 3 month period: the High Voltage Coolant Heater (HVCH) and the vehicle batteries (VCM and main), suggesting a systemic hybrid system reliability problem.