2023 Volvo XC40: sudden unintended acceleration

Filed Oct 27, 2026 · Airbags, Electrical · CA · 1 injury

Liquid intrusion in the center console from a routine cup holder spill penetrated unshielded wiring harnesses. This caused progressive electrical failures, including loss of engine power and power steering, failure of the SRS passenger airbag occupant sensor, 12V battery drain, and uncommanded movement of the power driver's seat while driving—which surged forward and pinned the driver against the steering wheel. Dealer repairs are approximately $5,000 to date with active hazards remaining

Filed Sep 20, 2026 · Acceleration, Brakes · NC · crash

I was pulling into a parking space at very low speed and was in the final stage of positioning the vehicle in the parking space. I was intentionally controlling the vehicle’s movement by gradually lifting my foot from the brake pedal. Instead of continuing to move forward slowly as expected, the vehicle suddenly accelerated forward with substantial force and speed greater than would be expected from simply releasing the brake pedal, and crashed into a cement wall. I did not intentionally press the accelerator or attempt to accelerate the vehicle. The collision caused substantial damage to the vehicle. The repair estimate is $14,644.25. The vehicle was NOT in cruise control. The Volvo-installed rubber floor mats were securely attached to the factory retaining pegs on the floor and were not loose or displaced. The vehicle’s Forward Collision Avoidance system did not engage or provide an automatic braking intervention before the vehicle struck the cement wall. The airbag did not deploy. The seat belt did not lock into place during the crash. I am submitting this complaint because the vehicle was being maneuvered at extremely low speed during a parking maneuver and unexpectedly accelerated forward with sufficient force to cause a collision with a cement wall, and resulted in significant vehicle damage. I am concerned that this may represent a safety defect. I request that the federal safety agency investigate whether this incident is part of a broader pattern involving the 2023 Volvo XC40 B5 mild-hybrid, including accelerator/throttle system, brake system, transmission, electronic controls, sensors, software, or communication between these systems. And consider examination of the vehicle’s electronic data, including accelerator-pedal position, brake-pedal position, throttle commands, engine-control-module data, transmission commands, brake-control-module data, diagnostic trouble codes, freeze-frame/event data and relevant software versions immediately preceding the collision.

Filed Jun 4, 2026 · Brakes, Electrical · CO · crash

I pulled into a parking spot with a concrete barrier pole at a pharmacy to pick up my sister. I had my foot on the brake while she was getting into the vehicle when the vehicle suddenly accelerated forward crashing into the pole. I have also had an incident where I tried to start the vehicle and could not get the vehicle to go from park to reverse. This is concerning that there could be some faults in the electrical system, sensors or brakes.

Filed Jul 17, 2025 · Acceleration, Brakes · VA · crash · 1 injury

On Wednesday, July 16, 2025 I was sitting at a stop light, using the Auto Hold system. A few minutes later, my car took off and accelerated on its own and hit the rear of a truck. I hit the truck so hard as he was sitting at the light as well, it pushed his vehicle into the vehicle in front of him. I was unable to stop my Volvo, it was like it took full control over.

Filed Jan 20, 2025 · Brakes · CA

On Wednesday morning [XXX] at [XXX] I was parking my 2023 Volvo XC Recharge in the parking lot on Stearns Wharf in Santa Barbara where I was meeting my walking group for our regular morning walk on the pier and along the waterfront. While I was slowly finishing pulling into a parking spot, with my foot solidly on the brake, the car suddenly lurched and accelerated. It jumped the parking spot wooden stop and then jumped the orange iron barrier that divides the parking lot from the pier road. It felt as if I were suddenly on a runaway horse. My instincts kicked in as the car bounced fully onto the pier road, and I immediately turned the car so that I would not crash through the other barrier on the ocean side of the pier road and dive into the ocean. I immediately drove the car back into the lot and parked it. The pier is not a standard asphalt/concrete road or lot. It is wooden beams placed one after the other. It is very bumpy and the speed limit is 10 miles per hour, but usually you cannot even drive that fast because it is so rough and bumpy. I was going the slowest you can go just before coming to a full stop in my parking spot, with my foot fully on the brake, when the sudden acceleration occurred. It is a very bumpy and uneven surface and maybe that contributed to a failure in the vehicle monitoring system or automatic braking system. I feel incredibly fortunate that this malfunction did not cause more damage than a blown tire. I am grateful there were no pedestrians or cars in the path of the car and that I was not parked on the ocean side of the parking lot. This could easily have been a fatal and catastrophic incident. My trust in the car to function properly is severely compromised. Volvo kept the car for 2 months while investigating. They said there was no malfunction, but refused to release any report substantiating their conclusion. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 10, 2024 · Brakes, Electrical · ID · crash

I went through a car wash and then pulled into the first parking spot near the vacuum cleaners. As I was braking and coming to a stop, the car suddenly lurched forward and accelerated on its own. Despite pressing the brake pedal multiple times, the car did not stop until it went about 15ft. To avoid hitting the building wall directly in front of me, I swerved to the left. The car collided with the metal pole supporting the vacuum cleaner structure, causing significant damage to the entire side of the vehicle, and also clipped the corner of the building on the right as it went through the area. There were no warning lights, messages, or other indications of an issue before the incident. I have videos of the incident from the car wash. -The issue involves unintended acceleration, potentially related to the accelerator pedal sensor (APS), throttle control system, or braking system. It may also be electrical, as similar issues in 2021 and 2022 Volvo XC40 Recharge vehicles were reported due to water damage and corrosion in the cable harness, leading to unintended APS signals. The vehicle is available for inspection upon request. -The vehicle suddenly accelerated without input causing a collision. To avoid hitting a building wall in front of me, I swerved to the left, and the car struck the metal pole supporting the vacuum cleaner structure. The impact caused significant damage to the side of the car and clipped the corner of the building as well. This incident could have resulted in severe injury or damage had anyone been nearby or if the car had collided directly with the building (which held the car wash electrical panel). As it stands I have a stiff neck and some PTSD. -No, the problem has not yet been reproduced or confirmed by a dealer or service center. It's at the collision center. -No, the vehicle has not yet been inspected by the manufacturer, police, insurance, etc. -No warning lamps, messages, or other symptoms appeared before/during/after the incident.

Filed Dec 28, 2023 · Brakes, Engine · NJ

The brake systems have failed repeatedly on this vehicle, and have been replaced by the manufacturer TWICE since purchase (April 28, 2023). Brakes continued to intermittently freeze or lose pressure, so car is now classified as a lemon. However, as we have waited months and months for the lemon process to complete, the transmission began to fail. At first, we had incidents of the car seeming to shift into neutral at speeds of 30-40 MPH. The car’s engine would rev and yet forward propulsion would become coasting. Lifting foot from accelerator and then putting fit back on would often result in the gear “catching” and the car lurching into gear. On the most recent and dangerous iteration of this transmission/engine problem, when merging onto an interstate and traveling at 45-50 MPH, I attempted to accelerate and merge. Instead of downshifting to give me more power, the car entered a seeming neutral state (both hands were on the wheel, indicator said I was in Drive). The engine revved and yet the car coasted. I was unable to pull into traffic, on a very short entrance ramp. I pulled my foot off the gas pedal, waited a second, and put it back on. The car lurched into gear and shot forward. We have stopped driving this car while awaiting Volvo’s agreed upon lemon law payout. The dealer will not fix the car, given its lemon status. The buyback company, Sedgwick, takes no responsibility. We are fortunate enough to be able to afford a new car while awaiting the payout. But had we not been able to, these transmission/engine problems could easily have caused an accident. No other person should be in danger from these cars. The service manager at our dealer states that they are in the process of multiple XC40 buybacks right now. Volvo has a problem and it is simply buying back these cars. I will list the date of the most aggregators transmission issue (the merging problem) below.