As I began to move the car, the vehicle suddenly accelerated on its own. I attempted to brake before reaching the stop sign, but the car continued to gain speed. I estimate the vehicle reached approximately 60 mph. Within seconds, I collided with two vehicles and then a palm tree, sustaining a frontal impact. The entire incident occurred within approximately two to three seconds, during which the vehicle accelerated rapidly. Despite the collision, the airbags did not deploy, the seat belt did not lock, and neither the brake system warning nor the automatic braking system activated.

Source: NHTSA complaint ODI #11712662 · view all complaints for this vehicle at nhtsa.gov

On Friday, XXX, I stopped my vehicle in a parking spot, exited, and returned to my vehicle. I put it in drive, moved from the parking spot, and before I could reach 10 mph, the vehicle began to shake/vibrate violently, and the dash lit up with electrical system malfunction warning. On Saturday, XXX, my [XXX] daughter, who was driving my [XXX] and [XXX] daughters home, called me to tell me that the vehicle failed and that she had "safely pulled into someone’s driveway". We had been out of town, and she was caring for her sisters and my vehicle has the carseats. My [XXX] daughters frequently drive my car. She was a mile away from home, so she did “the routine”. She had to do this 5 times - with me on the phone - just to get the vehicle home and her sisters to safety. After my husband and I returned home Saturday, XXX, we got in the vehicle so that we could possibly get it on video. We were able to finally get video evidence of the problem so that we can no longer be turned away from Audi with the excuse of “no evidence” of a problem. The history: XXX, I had my vehicle towed to Audi, because the electrical system malfunctioned in our driveway not in motion. I was told that the problem could not be replicated and, therefore, not resolved and that Audi “requests vehicle to be released to the customer”. On XXX, we contacted Audi once again to report two instances of the same problem, both which occurred while in motion. The vehicle then went limp and brought me to a stop on the side of the road, on a sharp bend, with, again, my two youngest children in the back seat. Then, my husband and I were in the vehicle and had stopped at a traffic light on a 55 mph road. XXX diagnosis: “Could not duplicate customer concern during several test drives, found no relevant fault codes” and “no obvious electrical or mechanical failures during hoist inspection at this time” were the notes in the report back to us. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11757319 · view all complaints for this vehicle at nhtsa.gov

I was driving on the highway at a very slow speed (<5mph) due to heavy traffic. All of a sudden my car accelerated and hit the car in front of me twice because brakes would not apply. I found similar user reports online (links below). These cases suggest that my experience is not an isolated incident, which raises serious safety concerns. Links to other users who have reported similar issues: https://www.e-tronforum.com/threads/unintended-sudden-acceleration.7662/ https://www.e-tronforum.com/threads/sudden-acceleration-issue.2124/ https://www.cars.com › ... › 20232023 Audi Q4 e-tron Consumer Reviews

Source: NHTSA complaint ODI #11625261 · view all complaints for this vehicle at nhtsa.gov

Front suspension ball joint failure occurred while driving approximately 70 mph on an interstate highway, resulting in sudden loss of vehicle control and requiring immediate emergency response. The vehicle is a 2023 Audi e-tron A5. Two weeks prior to the sudden failure, an Audi dealership inspected the same front corner of the vehicle following earlier damage and stated that the front suspension and wheel components were safe and the vehicle was fit to drive, replaced the rear right tire and recommended replacing the rear wheel housing after not being able to get the full car alignment to spec. I told them I wanted to defer that service until later in February unless it was catastrophic when we discussed the findings. They told me that the car was safe to drive and proceeded with the wheel alignment and replacement on the rear. The ball joint failure was catastrophic and presents a serious safety concern, particularly given the recent dealer inspection and the short time between inspection and failure. Warranty coverage was later denied by the dealership, despite having just inspected the car for damage and claimed that the failure of the front ball joint was caused by deferring the rear wheel housing service. I am submitting this complaint due to the safety implications of a suspension component failure at highway speed and concern that the defect may have existed and should have been detected during the prior inspection.

Source: NHTSA complaint ODI #11716747 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2023 Audi Q4 E-Tron. The contact stated while driving approximately 50 MPH, the vehicle suddenly powered off and then immediately restarted. The contact stated that the failure had occurred twice. There were no warning lights illuminated. The vehicle was taken to the dealer who diagnosed that the seat belt had failed, causing the vehicle to stop while driving. The seat belt for the front driver’s side seat needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was 2,000.

Source: NHTSA complaint ODI #11608904 · view all complaints for this vehicle at nhtsa.gov

Primary issue is electric shock hazard and limb dismemberment. It was confirmed by an Audi service tech that all Audi Q4s have dangerous gaps in every door. My child 8 years old got her finger caught between the panel and door frame. She could have cut or worse lost her finger should the door rapidly open or close. Wires are exposed leaving the easy situation of access to wires with sharp metal objects that a kid could do. Open door panels have sharp edges leading g to easy cuts. As the wires are colorful and visually appealing a kid would be enticed to try to acquire. The techs will not close the panel to frame since this is Audi’s deliberate design. Tech claims to have fixed but clearly was not touched. Audi should be required to redesign door paneling and reinstall proper paneling. All door paneling to the door frames should be closed and secured with zero gaps. Video claiming this normal is found here [XXX] &section=RECOMMENDATIONS&shouldOpenInspectionsReport=true INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11697683 · view all complaints for this vehicle at nhtsa.gov

The air conditioner warning light came on in April 2026. I took it to dealer to be checked. Dealer said no problem. That warning light went on intermittently through May, June and July. By end of July I took it back to dealer. The evaporator was indeed malfunctioning and emitting carbon dioxide into the cabin when the air conditioner was on. While repairing the evaporator system, the plastic cover over the ground stud broke and required replacement. The vehicle was out of service for 10 working days.

Source: NHTSA complaint ODI #11756699 · view all complaints for this vehicle at nhtsa.gov