NHTSA Complaint #11560494 — 2021 VOLVO XC40

Rear collision warning system activated without reason. While stopped at a traffic light the RCWS activated and the emergency brake system engaged. This has been reported before to NHTSA. Vehicle was at the dealership for repairs or to identify the issue. Had to have it towed and dragged onto the flat bed tow truck as the cars emergency brake system was engaged and couldn't be disengaged. Received vehicle back and was told to bring it back once it happened again, which it has twice. But this time, emergency brake did not get stuck and have to be towed. It occurs without a vehicle or anything behind the vehicle and the vehicle was not in reverse when the system activated. I have contacted the Volvo consumer affairs to see if they could assist with resolving the issues as the vehicle remains in an unsafe driving state. They explained to me that it was up to the dealership/shop to locate the problem and they couldn't do anything to help. Which the dealership only suggested a replacement of the hydraulic brake system and I was advised that it might not fix the problem. I've since then been instructed to bring the vehicle back again for them to continue their road testing of the vehicle. The first time the vehicle was left for road testing it was only driven under a mile as per the recorded data showed through the Volvo car application with GPS and mileage tracking. This was explained to the service manager who reiterated to the service technician manager to road test the vehicle again. It was only driven approximately 30 miles with no issues identified by the technicians. I am currently waiting to bring the car back to the dealership for further troubleshooting / road tests.