Owner-reported complaints naming the driver-assistance system, filed with NHTSA
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Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2021 Volvo XC40 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 19 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
I was sitting in the car with my daughter with the car in park, but the engine was on. Suddenly the engine started revving, and I thought her foot hit the peddle but it wasn't the case, and she had to turn the car off. I then got into the driver's seat and started the car again, and it did the same thing. I turned the car off and had to Uber home.
When attempting to park the vehicle, at low speed, the vehicle performed an unintended acceleration leading the vehicle to crash.
Ever since I bought the vehicle new in 2021 I have had perpetual problems with the software and technology. The cruise control system has gone out completely, all electrical fails in the vehicle, apple car play regularly goes out. What is even more of a safety concern is multiple times my car has been automatically braking and suddenly accelerates nearly causing me to rear end the vehicle in front of me. Several times I have been traveling down the road straight ahead with the cruise control system enabled and the vehicle will suddenly automatically turn sharply throwing me towards oncoming traffic or towards the side of the road. Fortunately I have been able to prevent an accident every time because of quick action but this is deeply concerning and an extreme safety concern for me and others on the road.
Back up camera consistently does not turn off. Audio system, including turning signals and reverse alert do not activate. This continues to be a safety risk despite numerous software updates that have allegedly fixed the issues.
The supposed software fix for the rearview camera not being available did not solve the problem. I’m still getting “Camera is temporarily unavailable.” When shifting into reverse. Vehicle was updated to software version 3.7 and this issue persists.
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.
The contact owns a 2021 Volvo XC40. The contact stated that while reversing, the back over prevention screen image malfunctioned and started flickering before displaying a blank screen. During the failure, the message "Camera Unavailable" was displayed. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The contact was informed that the vehicle was recently repaired under NHTSA Campaign Number: 25V282000 (BACK OVER PREVENTION). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 36,000.
After having the rear camera software update to address the safety recall on 05/28, the “camera unavailable” problem persists. This vehicle has underpowered chipset in the IHU and the entire IHU should be subject to recall.
-The forward automatic braking system/City Safety has misfired multiple times in all weather conditions, on surface streets and on the highway. -This causes automatic braking which could cause an accident. -The car is currently at the dealer for inspection since 10/25/2024. It is now 11/5/2024. -There was a message on the dash saying that the dashboard screen was blocked- this began a few months ago. This issue with the automatic braking began after my last service for an oil change about two months ago.
Car can move forward automatically itself from stop position
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.
Had a cracked windshield, Volvo replaced with OEM. Another pin head size rock chip resulted in another cracked windshield. Google search will reveal the Windshield on the XC40 Volvo crack with the lightest contact. The glass has a defect and the crack interferes with driver visibility and driver assist functions
*We're experiencing constant phantom braking (sometimes multiple times within a day) with our vehicle on local roads as well as highways. Usually this occurs when we're approaching a vehicle in a turn lane, slowing down. Our blindspot sideview mirror lights light up when there is nothing present, even when we're in the outside lane against the curb - we have video to document this. The vehicle has also spontaneously turned off and then back on while in drive, in a turn lane. In addition, the dashboard and media center lighting sporadically dims down, making it difficult to see in bright light situations. *Whenever the phantom braking engages, it makes us vulnerable to being rear-ended. We're very lucky that this hasn't happened so far. The phantom side view mirror lights have created some panic situations where we didn't see a vehicle in the lane beside us and started to change lanes but swerved back into the lane we were in due to seeing the lights go on. Not being able to see the dashboard due to dimming of the lighting within poses obvious risks and spontaneous shut-down of the vehicle while in drive in a turn lane also makes us prone to being rear-ended. *The vehicle has been in service at Volvo of Naples, Florida for a combined time of about 30 days. The dealership put on 900+ miles on our car and claimed that they couldn't recreate the phantom braking or lighting situation. *We didn't experience any obvious issues with the car prior to the phantom braking, etc. We found that adaptive cruise control wasn't working but the dealership told us that our car doesn't have adaptive cruise control which seemed odd to us. We were under the impression that all cars at this level had adaptive cruise control. We're not sure whether to take them at their word.
Backup camera fails intermittently at least a dozen times, error message "camera unavailable". Camera icon disappears from dash. Took to dealer. No code, no problem. Backed up and worked, did not understand intermittently?! Asked tech to report to Volvo, got push back. I advised I was reporting as safety failure to SaferCar and they report to Volvo. Suspect was not reported to Volvo. When camera fails other rear safety systems are inoperable.
The contact owns a 2021 Volvo XC40. The contact received notification of NHTSA Campaign Number: 22V288000 (Vehicle Speed Control) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnect.
The seat belt warning chimes audio alert does not alert when passenger does not wear seatbelt and easy to go unnoticed. (Unlike Toyota or other cars) The lane keep assist when not able to detect the lanes shows little alert in clusters & vibrate steering wheel which is easy to go unnoticed and feel dangerous to trust the system. Even the lane assist does not have audio alerts to inform driver. I feel the Lane Keep, Lane assist & seat belt reminder audio alert is not available or up-to driver’s attention. When compared to friends Toyota Rav4 car even the blind spot lights won’t light by when in buffer lane and cars passing from behind. Other issue I found dangerous is the gear shifter is like a toggle and when in emergency it is hard to switch to reverse as i have to switch double times between Neutral. The Drive mode buttons feels useless as it when pressed, it occupies the whole screen in center and distracts driving. Sometime Apple Carplay does not connect when maps and music are played together.
On 8/3/21 I had an accident in my brand new 2021 xc40. I lightly tapped on the accelerator to close in a gap as I came to a stop at a red light. The vehicle jumped forward as though I floored the accelerator, though again, it was a slight tap. I rear-ended the car in front of me. There was no forward collision warning, no mitigation by the vehicle applying the brakes, nothing. The vehicle is supposed to assist in this situation, but the aeb system did not work at all. The jump in power and failure of the aeb is very troubling. Especially since it's a large part of the Volvo selling point.
The 2021 XC 40 vehicle will periodically not restart - may be something to do with the safety key or some other electrical malfunction. The dashboard shows the battery symbol when the car will not restart as if the vehicle is dead (no electrical connection). Also, when the start button is depressed the dashboard illuminates with the dead battery signal, but otherwise, it seems the button is not connected to the vehicle in that the engine does not respond. Also, we had an issue where the vehicle, while we were beginning to stop at a stop sign, went dead and was not responsive. The “Start/Stop” function, although engaged in the center console, is often not operational and will show in the dashboard that it is not operational, but then, randomly (not consistent with the reasons itemized in the Volvo manual for why the start/stop function may not work), will work on a few stops for that particular drive and then revert back to not being operational on the next trip, although it is engaged to be “on” in the center console. Again, this appears to be a sign or symptom of some sort of electrical malfunction. Now, most recently, my wife and daughter were driving the vehicle, and it lost power and shut off in the middle of the road, horrifying these two individuals and greatly upsetting me that a vehicle sold by Volvo would perform so poorly and create a significant hazard to driver and passengers of the vehicle (not to mention others on the roadway). Again, and clearly, there appears to be some sort of electrical malfunction. Clearly, what we first reported to Volvo on or about May 17, 2021 was an electrical problem that Volvo had an idea or knowledge (knew or should have known) that was or may be similar to the problem they had already issued a recall for on the XC 40 recharge.
The contact owns a 2021 Volvo XC40. The contact stated that the vehicle was delivered to his residence by the local dealer. Upon inspection, he became aware that the automatic emergency braking system sensor was not operating as designed while reversing with an object nearby. The local dealer was made aware of the issue however, no assistance was offered. The vehicle was not diagnosed nor repaired. The manufacturer was made aware of the failure. The failure mileage was 7.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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