The MMI (infotainment) system in my 2020 Audi A4 start to have intermittent reboot issue during normal driving starting earlier this year. It was working expected without reboot until that time. The MMI system reboot creates harzards and danger for drivers because during rebooting, the whole navigation system is not working neither did Carplay. What's even worse is that the back up camera and radar will also be disabled during rebooting. The rebooting time varies from 10s of seconds to minutes, with black screen and/or laggy, frozen screen. After rebooting, the system will have error prompt such as 'The selected user has not been used for a extended period of time' but the selected user has been using the vehicle all the time. Given the issue described above, there are more and more ppl who are experiencing the same issue joined a online thread: [XXX] , in order to identify the issue and helping each other to protect consumer's rights. The issue has been shared to Audi Customer Support thru email and phone calls several times, such as case number: XXXXXXXX, all the help they provided to me is to reset key user of the vehicle but it does not solve the issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
2020 Audi A4 electrical complaints
Page 3 of 4: complaints 41 to 70 of 92, newest first, as owners wrote them.
The MMI (system that displays the rear safety camera, navigation, radio, etc.) reboots frequently during operation. When it reboots while in reverse, the rear camera display disappears.
MMI restarting randomly while idling or running and importantly while reversing restart causing the screen blank imposing safety concerns to the driver.
The MMI (multimedia interface) will periodically restart during drives, including while the backup camera and other safety systems are active. The restart limits ability to use safety features such as the backup camera or sensors. The system displays a message that states the “user hasn’t been used in an extended period of time” and then the system begins the reboot. This issue first began around February 2025 and has only continued to get worse and more frequent over time. It appears to be related to software changes as nothing else about the vehicle have changed during that time.
Starting in around February the MMI (central computer system) system started rebooting at random times while the car was started. At first, I thought there must be something wrong with just my car. I took it into the dealer, and they said there was nothing they could do about it. I did some research and found many other people are having the same issues (thread has over 550 posts linked at the bottom) with the year model and they all started at the same time. I reached out to Audi International, and they say they've never heard of the issue, it's not widespread and to take it to the dealer (which is clearly a lie given the linked thread), when I took it to the dealer, they said Audi international needs to provide and update. Many people on the thread have been told the same thing by Audi and it is extremely frustrating that it's been 5 months, and they continue to deny anything is wrong. I feel this is a major safety issue due to the fact it is extremely distracting while driving and trying to use maps. I took a ~2-hour drive yesterday and the MMI rebooted around 100 times. The other extremely concerning safety issue is if it reboots while parked or in reverse, you lose the backup camera as well as all the proximity sensors until the car is restarted. I know many people have also filed complaints with the federal safety agency and Audi International and I'm hoping with enough people speaking up someone will listen and force Audi to provide a solution. Link to Forum: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Audi MMI display constantly shuts off and turns back on with a message about this user not being used despite using it everyday. This happens all the time and has been on going for months. It is dangerous when I’m relying on it for navigation. I have not had this issue looked at at an Audi dealership but have read this issue seems to be widespread with 2020 models. The issue is ongoing and only seems to be getting worse.
The 2020 Audi A4 models seem to be experiencing in an outs through the MMI system. They car will reboot multiple times during a drive. I began receiving this around June 23, 2025. They claim it is a software issue however many have not come to a conclusion or fix. This is impairing driving because i am not able to utilize hands free driving which now is a law within many states. Please look into this issue and push the fix amongst all of us drivers on the road.
The infotainment system will randomly reboot while the vehicle is on and being driven. The system will shut off, initialize, and reload. If using CarPlay, the system will shut it down and require you to manually reconnect your phone and enable CarPlay for it to load on the display. This system will reboot randomly about 4-5 times within a 30 minute/30 mile drive. To reconnect your phone you have to click on the display because the vehicle does not have a command knob that can be used without having to reach the display.
The MMI (multi-media interface) frequently reboots during driving, resulting in a black screen and the inoperability of key systems such as the backup camera, rear obstacle detection, navigation, and cell phone tethering (for hands-free operation). These reboots require user input, including entering a PIN to log into the user account (if set up) and repeatedly tapping on the MMI, which can be highly distracting while driving. By its very nature, the reboot catches the driver by surprise and requires diverting attention from driving.Typically, this user input is provided while stationary, immediately after starting the vehicle. This issue constitutes a safety concern, as reboots can occur during reverse parking maneuvers, rendering the backup camera and obstacle detection sensors inoperable until the system reloads. Additionally, reboots completely disable the navigation screens and necessitate multiple user inputs to restore functionality, which can be hazardous while driving. Many states have enacted hands-free laws and requirements that mandate the use of dash-mounted systems to comply with these regulations. The reboots render such systems inoperative. Numerous reports on online user forums suggest that this issue is widespread and affects the same model year vehicles. For instance, see [XXX] . Several Technical Service Bulletins (TSBs) filed with the federal safety agency indicate that available software updates should be applied to address infotainment-related issues. Relevant TSB numbers include: TSB 2067021, TSB 2076404, and TSB 2069112. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The MMI randomly shuts down repeatedly while driving. It will shut down and reset while driving every 5 minutes or so regardless of what is connected to the system. It happens when my phone is connected via bluetooth, via android auto, or if no phone at all is connected to the system. Its very very frustrating.
The infotainment system reboots at random times. This is a security risk since it often reboots while the backup camera is active. This effectively takes the backup camera offline. This can also distract the driver since the screen blacks out then reboots promoting for two confirmation screens that you normally go through when in park.
The MMI system, which displays navigation and other controls, shuts down and restarts frequently while the car is in motion. The problem occurs at least once every trip, and typically every 10 minutes. In my case, I use Apple CarPlay as my navigation system, and the sudden and unexpected loss of navigation poses serious safety risks to me and others, because I either need to pick up my phone to see the map or make a sudden driving maneuver to correct my course. The incident occurred with two other phones, and even when no phone was connected to the car. And it also happened when another person in my household was driving. So the problem is not phone or driver-dependent. I have not yet brought the car to the Audi dealership for diagnostic service.
The MMI will spontaneously stop working in the middle of driving. The screen goes blank and then after a few seconds starts a reboot. This requires me to engage the touch screen manually. This will happen multiple times during a 20-30 minute drive. I first started noticing the problem a few months ago sporadically , but it is now happening consistently every time I drive. It is potentially a safety issue, as it is very distracting, shuts off navigation and obstacle detection systems. I have found that this is a common problem many people who have similar year and models of Audis are experiencing. I have not yet contacted the dealership, but it seems from reports it may be a software problem.
The MMI (multi-media interface) frequently reboots during driving, resulting in a black screen and the inoperability of key systems such as the backup camera, rear obstacle detection, navigation, and cell phone tethering (for hands-free operation). These reboots require user input, including entering a PIN to log into the user account (if set up) and repeatedly tapping on the MMI, which can be highly distracting while driving. By its very nature, the reboot catches the driver by surprise and requires diverting attention from driving.Typically, this user input is provided while stationary, immediately after starting the vehicle. The issue emerged sometime in February or March 2025. The vehicle was last serviced in December 2024. I brought the vehicle to a dealership (Audi of Calabasas, California), who were unable to provide a fix for the problem. This issue constitutes a safety concern, as reboots can occur during reverse parking maneuvers, rendering the backup camera and obstacle detection sensors inoperable until the system reloads. Additionally, reboots completely disable the navigation screens and necessitate multiple user inputs to restore functionality, which can be hazardous while driving. Many states have enacted hands-free laws and requirements that mandate the use of dash-mounted systems to comply with these regulations. The reboots render such systems inoperative. Numerous reports on online user forums suggest that this issue is widespread and affects the same model year vehicles. For instance, see [XXX] . Several Technical Service Bulletins (TSBs) filed with the federal safety agency indicate that available software updates should be applied to address infotainment-related issues. Relevant TSB numbers include: TSB 2067021, TSB 2076404, and TSB 2069112. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The monitor in my vehicle will randomly stop working. This could affect the backup camera or other vehicle systems. It also causes a problem with setting the user, and this controls my settings in the vehicle.
The MMI in the car constantly reboots. Started occasionally doing it once a drive, would restart and then go right back to what I was at. Then it would restart multiple times a trip, not going where I was at. If I had music on it would lower the volume it was rebooted to or go to a different song. The screen would also freeze for a few minutes after in being rebooted. Took it to Audi, they installed an “update” now it reboots every 3-5 minutes, causing serious safety concerns with no access to the MMI stystem.
The MMI system keeps crashing and rebooting. It can happen as often as every 5-15 minutes. Navigation goes down and parking and backup camera is unavailable until system goes through the reboot process. My understanding is that there are numerous other Audi owners who have this problem, with no clear fix . Audi has nit addressed this or have been able to offer any help or resolution to this issue
The Audi MMI (Multi Media Interface) system will continually shut down and Reset/reboot while driving. It will happen sometimes 3-4 time within a 20 minute drive. The MMI plays a crucial role in enhancing safety features by providing a user-friendly interface for managing various driver assistance systems and safety-related functions. These include features like emergency calls, roadside assistance, and the integration of driver assistance systems like adaptive cruise control and collision avoidance assist.
2020 Audi A4 has infotainment system that constantly crashes and reboots. It occurs multiple times on every single drive, disabling maps, music, and all of the infotainment until the reboot completes. This issue did not occur in prior years, likely due to some over the air update. Issue has become more frequent over time and has been experienced by many other owners, does not seem to be hardware related. Only solution so far appears to be paying the dealership hundreds for a software update.
MMI unit (HDU for Audi/radio/backup camera) keeps resetting. Lose picture when backing up. Definitely a safety hazard
The SOS Emergency Call system error warning appears every time I start the car. This system no longer functions in the car. An independent mechanic ran the diagnostic and said it could not be cleared. If I were to be in an accident, I would not be able to use this essential safety feature. Additionally, the MMI system that is used for making hands-free calls, mapping directions, and reading texts aloud randomly shuts off every 3-5 minutes. It says it is initializing, and you must hit three buttons to have it come back on. If I'm using maps or making a call, and this system shuts down, it becomes a distraction while driving. The dealership said it is a problem with this component overheating and restarting.
My car randomly checks for remote access during drive. This occurs also during reversing the car preventing for seeing the rear view camera. this is causing dangerous situations.
The MMI or infotainment center turns off and reboots/kicks user out while the car is in motion and also while stopped. The MMI going off has cut out while backing up not allowing the rear camera to be used and has also not allowed the front and rear sensors to be used for parking/auto breaking. There seems to be a large portion of similar complaints and unknown fixes for 2020 models either exactly the same or similar. Personally have not had it inspected or attempted to fix outside the recommended soft reset, user account reset, and even unplugging battery to reset as well. No fix has been identified or has proven to not cause the issue from recurring. This has occurred more frequently in past week or so ~15Jun where it rebooted once in an two drive, 16Jun no reboots for 1.5 hour min drive, 17Jun one reboot for 1.5 hour drive, and 19Jun where it rebooted 7 times in 2 hour drive. There is no warning and seems to be random or when on full screen maps through Android Auto.
The MMI Radio spontaneously reboots numerous times while driving. When the reboots happen, the screen goes black and key systems such as the backup camera, rear obstacle detection, and navigation, become unavailable until the reboot completes and the systems reload. Restoring functionality requires user input to get through the loading screens WHILE DRIVING. The issue started in February 2025. I see numerous other Audi owners that have the same software and operating systems complaining about this. It seems Audi changed something that caused the connectivity to fail. Dealers I called have no clue. Seems that it needs to have a software update. Someone wrote that the were able to get it fixed by updating 3 components from System 32 to system 35.
Audi MMI (display console/dashboard cluster) randomly turns off and reboots while driving.
The MMI randomly restarts, starting in March of 2025. This includes when you are reversing, and there is no camera mid-reverse, along with a complete screen shut down. There will be a clicking sound, then a restart on the MMI at any point, typically multiple times while driving. Then it will log you out, have multiple pop-ups, and say technical error at times (then reboot again). It is available for inspection, yes. The highest risk and safety hazard is mid-reversing anywhere (grocery parking lots, garages with cement columns, humans walking behind). It is also quite distracting while driving. My specific dealership didn’t fully test drive the car to recreate it and came back inconclusive, but many others are having this issue occurring at the same time with dealerships reproducing it. By Audi, it has been looked at. There were no warning signs, symptoms, or messages prior to this occurring in March of this year. See this issue occurring at the same time for the same model as Audi has not been helpful in correcting: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The infotainment screen (MMI) responsible for Rear camera, Cross traffic alert, Entertainment and controls some crucial vehicle functions tends to shut off by itself while driving. This issue occurs constantly and It's very sporadic. Nothing triggers this just the car decides to do it on it's own. This causes me to lose visuals of my surrounding, and sensor information and the ability to listen to Maps and music. Raises a major safety concern.
Radio keeps cutting off and on randomly, nothing it seeming to fix the problem and all 2020 a4 owners have been running into this. It is also messing with backup camera. This needs to get brought to attention and find a solution.
The MMI component randomly stops working. Over the past four years of driving this Audi the MMI would suddenly reboot itself only once or twice a year. Now for the past three months it tries to reboot itself once or twice a day! It's quite startling for the music to go silent and the screen goes black, the first few times this happened I thought the engine died too (that's scary). It even happens when I'm backing out of my garage, luckily there is never anybody behind me but what if I'm in the mall parking lot. When the MMI reboots itself about half of the time it is similar to a conventional starting procedure, which isn't to bad but just annoying. Other times it wants you to log on as a "guest driver" or "registered driver hasn't been in the vehicle" or it even wants you to punch in a pin number on the key pad which I don't know. All this requires your concentration on the MMI and not on the road. I wish some one could inspect this and confirm my problems before I brought it to the dealer. If I brought my car to the dealer they would charge me for diagnostics and then say they "there is nothing wrong" or worse try to upsell me a whole new unit for mega dollars. I only drive about ten to fifteen miles a day so my time on the road is minimal but it only takes a moment of distraction to have an accident. While there haven't been any warning lamps or messages about the MMI problem there was another symptom to this problem. The control button on the center console and the thumb scroll wheel on the steering wheel had a very distinct delayed reaction. The volume would change 2-3 seconds after I used the knobs and even turn off 2-3 seconds after I hit the button on the console. I think this symptom started to occur before the MMI reboots. One more quirk, after the MMI reboots, the music from my USB drive will start to play not from when the MMI cut out but from when I started the car that morning. It starts to repeat the same songs. Thank You.
while driving. These reboots typically happen every 5–10 minutes and result in the temporary loss of safety-critical features like the backup camera, navigation system, and rear cross-traffic alert. The screen goes black, and the system restarts itself while the vehicle is in motion, which is both distracting and potentially dangerous. I brought the issue to my local Audi dealer, who attempted two separate software updates. Unfortunately, the problem continues. The service department reports no faults in the system diagnostics and has stated that they currently do not know how to fix the issue. This persistent malfunction affects key safety systems and creates significant concern when driving.
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