2021 Audi Q5 Driver Assist & ADAS Problems

I was driving down a regular road by my house, full sunshine, perfect road, nothing unusual. In fact, it was such a nice day, the sunroof was open and windows were down. My dog was in the back seat after just being picked up from grooming happily enjoying the day with his head out the window. I was on a road with the speed limit of 30. I was going 30 mph. Nothing unusual. Literally, out of nowhere, like my car was possessed, is the best way I put it, my car abruptly braked in an attempt to stop on a dime. My car screeched to a stop while simultaneously my windows rolled up, my sunroof closed and my seat belt tightened, locking me in place. My dog was thrown forward. It was terrifying! Luckily, no one was behind me or they would have certainly rear-ended me. Nothing was in the road. Absolutely nothing. It happened so quickly in a split second. I put my hazards on and finished the next 2 miles home. I called Audi for a service appointment. I took my car in, again going down back roads with my hazards on. Audi charged me $400 to run a diagnostic report and shows there is a fault code J428. This fault code I researched is for the front/right ACC radar sensor that powers Adaptative Cruise control and Pre-Sense braking system. The fault code erroneously detected an obstacle and did abrupt braking. Audi told me that they would charge me $4,000 to fix it. I contested that as a safety issue it should be fixed as there is also Audi TSB2063502 referencing problems. This is a major safety issue as if I was going 70 MPH, I could cause a massive accident where I could be killed, anyone in my car, as well as others behind me in a massive car pile up. I feel ethically, this must be a safety recall to replace this fault in all vehicles. I am also requesting payment to fix from Audi. As an attorney (#[XXX]), Audi is under notice that they have a major safety defect on their hands and should take steps to protect drivers safety. Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Following a rear collision repair at an authorized dealer collision center, multiple ADAS safety systems were not properly calibrated despite insurance payment and shop representations that repairs were complete. WHAT FAILED: Lane Change Assist, Peripheral Camera System, Side Assist, 360-Degree Camera, Front Camera, and Adaptive Cruise Control were either not calibrated or calibrated in timeframes physically incompatible with manufacturer specifications. SAFETY RISK: Driver relies on blind spot monitoring and lane change alerts that may be non-functional or inaccurate. Without proper calibration, these systems may fail to detect adjacent vehicles, provide false alerts, or create blind spots in camera coverage, increasing collision risk during lane changes and merging. DEALER CONFIRMATION: Yes. Shop manager provided diagnostic logs as proof of calibration. Analysis shows 360-degree camera calibration executed in 18 seconds versus 40-60 minute industry standard, and zero calibration events logged for Lane Change Assist and Peripheral Camera systems explicitly claimed as completed. INSURANCE INSPECTION: Insurance company explicitly DENIED Lane Change Assist and Peripheral Camera calibrations on estimate. Shop admitted in writing these items were declined and blamed insurance for non-payment. No OEM calibration logs produced despite multiple written requests. WARNING SYMPTOMS: Systems may appear normal on diagnostic scan with no active fault codes, but this does not prove calibration was performed to OEM tolerances. Physical calibration requires target board positioning, laser alignment, and environmental verification that cannot be completed in documented timeframes. PATTERN CONCERN: This may represent a systemic issue where insurers deny ADAS calibrations, shops skip calibrations due to non-payment, vehicles are released as complete, and consumers unknowingly operate vehicles with compromised safety systems. Vehicle and documentation available for inspection.

The Audi "Pre Sense" automatic braking system engaged without warning and without reason bringing the vehicle to a sudden and complete stop in the middle of an intersection and slamming my body backwards and causing my head to go forward nearly hitting the steering wheel. A school bus was directly behind me and was able to stop in time before it ran into the back of my vehicle, but it could have caused serious injury or death to multiple people. It caused a considerable amount of pain in my neck the day after and soreness in my ribs. The vehicle gave no prior warning. It did display a message simultaneously when it applied the brakes and locked the seatbelts that the "pre sense" had been engaged. It has happened three times prior to this incident. The vehicle dealer has told me that they see record of the system engaging but it does not appear to be faulty by the manufacturers standards despite numerous complaints and frequent occurrences.

I have had three occurrences where the Automatic Emergency Braking system and Forward Collision system have been activated for no reason. In one case the Q5 braked suddenly, and the seat belts tightened to the point that it made my passengers back sore. Fortunately, no vehicle was following close behind to cause a rear end collision. I another case I was stopped at a traffic light with a car also stopped in front of me and the seat belts tightened for no reason. It was very startling. The third instance I was driving along a straight 2 lane road with no cars travelling in either direction and the AEB activated. The braking was violent. I am concerned that the AEB could activate on an interstate highway causing a serious accident. The date I used was just one occurance.

In several instances, my Audi Q5 has erroneously thought there was a road hazard and slammed on the brakes. It was terrifying. Luckily there were not cars close behind or they would have collided with my car. We took it to the dealer who adjusted the system they call “Pre-sense” but the car still slammed on its brakes for no reason a couple of months later.

Please note that this exact same issue has been previously reported by another driver ... While the car was fully stopped at a red light, in drive, and with the brake pedal depressed, the Audi pre sense system falsely triggered. There were no vehicles or pedestrians in close proximity and there was no apparent reason for the trigger. The seat belts were forcefully retracted and the pre sense light came on on the dash. If the car had been moving, this could have caused a serious accident. There have been multiple reports on this on Audi's discussion boards. https://www.audiworld.com/forums/s4-b9-platform-discussion-214/freaked-out-pre-sense-seat-belt-tightening-no-reason-all-3020878/ https://www.audiworld.com/forums/q5-sq5-mkii-discussion-218/pre-sense-seat-belt-jolt-3046494/

The contact owns a 2021 Audi Q5E. The contact stated that the vehicle was initially taken to the dealer due to an accident unrelated to a failure; however, the contact stated that while his vehicle was being serviced at the dealer, he was notified by the technician that the VIN was included in NHTSA Campaign Number: 22V742000 (Back Over Prevention) however, during the software update, the infotainment module became corrupted and needed to be replaced. The vehicle had not yet been repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the failure. The failure mileage was approximately 11,000. Parts distribution disconnect.

While the car is fully stopped at a red light, in Drive, and brakes fully depressed, the Audi Pre Sense falsely triggered. The seat belts were forcefully retracted and the pre sense light came on on the dash. Since the car was stopped, there was no imminent safety issues. However, had the car be moving, this could cause serious injury such as a crash. Also, for someone with health condition, this could trigger a panic attack, heart attack, etc. There has been multiple reports on this on Audi's discussion boards. https://www.audiworld.com/forums/s4-b9-platform-discussion-214/freaked-out-pre-sense-seat-belt-tightening-no-reason-all-3020878/ https://www.audiworld.com/forums/q5-sq5-mkii-discussion-218/pre-sense-seat-belt-jolt-3046494/

I have experienced two false activation of emergency brakes on my 2021 Q5 in the past 3 months. Both have been very scary incidents for my family - Feb 2022" Driving on a highway with no vehicle in front at 60mph, going through a shade under a bridge where emergency brakes false kicked in - 4/30/22 around 2pm: Driving on a street with no vehicle in front at 30mph where emergency brakes falsely kicked in

The vehicle automatic emergency braking has engaged over 6 times when no vehicle or other object was in front of the vehicle. The aggressive hard braking has nearly caused rear ending accidents and has also caused a neck injury. The vehicle has been taken to the dealership to address. The dealership indicated they reduced the sensitivity/distance of the system. This has not resolved the problem, and Audi has indicated they have no other actions they can take.

I have an issue with my vehicle where when the car is in reverse gear, the video from the camera sometimes is shaky, and sometimes instead of showing a rear camera, it shows a front camera, and sometimes the rear cross-traffic warning doesn't work even when in reverse gear when this video malfunction happens. It happened a few times and took me to the dealership for service. When they try to reproduce, it didn't, however, after a few days it started happening. I have few videos of this instance

when using cruise control, the vehicle suddenly brakes. If set a 70mph it will jam on the brakes and reset to 45 mph. This has caused near rear collisions. This is a recurring problem,.Audi service tried 3 times to identify the problem. Google has other owners with the same problem.