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What 17 owners told NHTSA about the 2021 Volvo XC90 T6

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (17)Electrical system (5)Brakes (4)Engine (3)Backup camera & sensors (2)Driver assistance (2)Steering (2)Transmission & drivetrain (2)Chest Clip, Buckle, Harness (1)Fuel system (1)Seat belts (1)

2 of 17 complaints match · Backup camera & sensors · clear filters

Aug 3, 2025Electrical systemBackup camera & sensors

The vehicle’s Start/Stop system began displaying warning messages and malfunctioning prior to the expiration of the factory warranty. The issue first appeared before 50,000 miles and reappeared at 49,997 miles, when a warning was displayed on the dashboard. The vehicle was taken to an authorized dealer for inspection. A diagnostic review confirmed the need to replace the Start/Stop auxiliary battery and repair the Park Assist system. A diagnostic fee was charged, and both system failures were documented. The Start/Stop system’s failure raises a potential safety concern because the vehicle may not reliably restart after automatically stopping at intersections or in traffic. This could lead to dangerous situations if the vehicle stalls unexpectedly or fails to re-engage power at a critical moment. Although the issue has not caused a crash or injury, it introduces unpredictable behavior that could compromise safe operation. The Park Assist system also failed, triggering system warnings and disabling parking assistance features. If a driver is relying on these systems during low-speed maneuvers, a sudden or silent failure may increase the risk of collision with objects, pedestrians, or other vehicles. The dealership confirmed the problem through inspection and diagnostic testing. The manufacturer was contacted and declined to cover the repairs under warranty, despite the vehicle being within the mileage limit when the issue was first documented and presented for service.

NHTSA ODI 11678085

Dec 28, 2020Backup camera & sensors

TL* THE CONTACT OWNS A 2021 VOLVO XC90. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE IN REVERSE, THE BACKUP CAMERA DISPLAY APPEARED VERY BLURRY AND DISTORTED CAUSING A VISIBILITY HAZARD TO THE DRIVER. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE BUT, NO ASSISTANCE WAS OFFERED. THE LOCAL DEALER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 200. *LN*JB

NHTSA ODI 11385260

Working with the data? Download all 17 complaints as CSV · fetched from NHTSA July 18, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 Volvo XC90 T6 verdict →