There are 9 stored owner reports matching the driver assist & adas leading-label group for the 2021 Volvo XC40 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
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Loaded 9 of 9 matching reports.
Open the full vehicle complaint log (all categories)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.
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.
*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.
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 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.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.