Volvo XC40 collision warning problems

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 Aug 22, 2026 · Driver assistance, Electrical · OH

Vehicle has 26k miles on it and is under mfr warranty. Dealer-covered warranty has included five (5) visits to address electrical issues with the most recently being 8/13/26. Dealer "system reflash" is not solving the problems. Electrical / safety issues persists, which include: Loss of ALL audio: blinker sounds, all audible safety alerts (seatbelt warning, park assist, blind spot, forward collision alert, and lane keeping). This has also occassionally coincided with a full dark-out of the driver dashboard while the vehicle is running (speedometer, entire instrument panel). This vehicle is for our teenage daughter and dealer efforts combined with my trouble-shooting (car on/off, hard system reset) is not solving the issue. The backup camera also regularly failed to work and on 12/10/24, the dealer addressed as part of earlier recall notice and the camera seems to be working fine. Other than above, the car has operated normally.

Filed Apr 18, 2026 · Driver assistance · CT · crash

I was pulling out of a parking space, and the car opposite me in the next row was pulling out at the same time. We backed into each other, damaging both cars. The ADAS failed to activate the rear camera, automatic emergency braking, parking collision warning, and rear cross traffic warning. There were no injuries, so we didn't call the police; we exchanged insurance info. The other driver was also driving a Volvo, and the ADAS also failed in his car. The first thing we said to each other was, "What happened to all the Volvo safety alerts!" I called Volvo to report the incident, and we set up an appointment for an inspection. A few days later, the ADAS failed again when I was backing out of a space. A car drove behind my car as I was backing out and my car banged into the side of the other car. I could not believe that every warning system failed again and I reported it to Volvo. They conducted the inspection and reported no issues with the car. I requested a copy of the inspection, and they said they can't send it since it's proprietary information. I disputed that argument since it is my car and my safety at risk. The same day, I was notified of the urgent 2026 Volvo recall due to a rear-view camera failure that could cause a collision. This is the second recall, a 2025 recall for the same issue.

Filed Mar 11, 2026 · Brakes, Driver assistance · 8,000 miles · CA · crash · 1 injury

The contact owned a 2024 Volvo XC40. The contact stated that his wife was entering a parking lot at approximately 10 MPH when she heard the vehicle engine abnormally revving and the vehicle independently accelerated. The vehicle drove through the parking lot and crashed into a tree. The contact stated that the driver's and passenger front air bags deployed, and the front collision avoidance had not engaged. The contact stated that the vehicle crashed into the tree almost at the center of the front bumper and grill. The hood had been crushed, the grill cracked, and the bumper had been torn off. The contact stated that the police arrived on scene but did not write a report since no other vehicles were involved. The contact stated that his wife had scrapes and bruises on both arms and scrapes on her nose and forehead. The wife was not attended to by EMT, but later went to the ER for neck and back pain. The vehicle was towed to an impound lot and later declared a total loss by the contact's insurance provider. The contact had contacted the manufacturer, who sent a technician to download information from the vehicle computers. The contact stated that a summary was released by the manufacturer that indicated that the crash was a driver error. The failure mileage was approximately 8,000.

Filed Jan 8, 2026 · Driver assistance · CA

The contact owns a 2023 Volvo XC40. The contact stated that while reversing, the rearview camera display intermittently was distorted or inoperative. The failure occurred on several different occasions. The contact stated that the infotainment system was intermittently inoperative and had to be manually reset to return to normal operation. The contact stated that the Forward Collision Avoidance: Automatic Emergency Braking and the Back Over Prevention: Automatic System Braking independently activated while there were no vehicles or objects in front or behind the vehicle. The contact was concerned that the failure was causing emotional distress for him and his children and could eventually cause an injury. The failure had occurred on several occasions. The contact stated that the rear taillights were dim and failed to provide adequate illumination behind the vehicle while in reverse. No warning lights were illuminated. The vehicle was taken to a dealer for diagnosis; however, the dealer stated that the vehicle was operating as designed. The vehicle was not repaired. The manufacturer was notified of the failure and stated that the vehicle was performing normally. The failure mileage was unknown.

Filed Nov 14, 2025 · Electrical · HI

Two Issues: 1. "Check Engine Light" comes on for no reason. This has happened six times (I have video recordings and maintenance reports from the dealership.) In the last maintenance report, Volvo technicians acknowledged the issue and stated that "AS OF NOW NO SOLUTION FOR THIS TO BE FIXED, VOLVO WILL BE LOOKING INTO THIS FOR FURTHER NOTICE." They also told me to just ignore the light if it comes on again. So, if there is a real and dangerous engine malfunction, there is no way to be alerted. 2. The entire sound system goes off while driving. This has happened few times. When this issue occurs, there will be no sound of alerts (turn signals, collision warnings, parking warnings, air conditioning, Google Maps, radio, etc.) The sales associates and manager told me this happens to their vehicles as well, and told me to reboot the screen whenever it happens. In one incident, I had to pull over in a shopping center parking lot to reboot the screen. No permanent solutions to this issue as well.

Filed Jul 3, 2025 · Brakes, Driver assistance · MD · 1 injury

On July 1st 2025, while slowly reversing out of my driveway at approximately 3–4 mph, the vehicle’s collision detection system errantly detected an imminent collision. Despite there being no obstacles, vehicles, pedestrians, or objects in the vehicle’s path, the system abruptly engaged the automatic emergency braking (AEB). This sudden and forceful braking caused me to experience whiplash due to the unexpected jolt. There was no prior warning or indication of a malfunction, nor any alert from the vehicle indicating why the braking occurred. After exiting the vehicle and inspecting the surroundings, I confirmed there were no obstructions behind or near the vehicle. This appears to be a false positive detection by the vehicle’s collision avoidance system. This incident raises serious concerns about the reliability and safety of the AEB system, particularly in low-speed reversing situations. An erroneous activation of this kind can result in injury to the occupants, potential rear-end collisions (in other traffic scenarios), and may also contribute to driver mistrust of critical safety features.

Filed Dec 16, 2023 · Brakes, Driver assistance · CA

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 the federal safety agency. 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.

Filed Oct 24, 2023 · Electrical · 58,000 miles · CA

The contact owns a 2021 Volvo XC40. The contact stated that at a stop light, the vehicle became inoperable. The contact stated that the doors would not unlock, and the seat belts became inoperable. The Rear Collision Avoidance warning light was illuminated. The contact stated that the warning light remained illuminated without another vehicle being behind. The vehicle was towed to a dealer. The vehicle had not been diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and confirmed that the VIN was not included in a recall. The failure mileage was approximately 58,000.

Filed Jun 14, 2023 · Driver assistance · 6,500 miles · GA

The contact owns a 2023 Volvo XC40. The contact stated while driving 65 MPH, the Forward Collision Avoidance system activated without a vehicle nearby and the vehicle experienced phantom braking. The contact stated that the failure occurred on three separate occasions. The vehicle was taken to the dealer, but the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 6,500. The contact stated that they have experienced multiple failures with their vehicle.