Computer Failure Problems of Audi Q5

Overall problem: Audi Q5 2020 appears to have a computer malfunction that instantly disables all systems. Vehicle �shut itself off� at a brief stop and became very difficult to control, rolling into intersection. Details: I stopped car at residential neighborhood stop sign (brief and complete stop, no wait), immediately ready to proceed forward. Audi's �auto stop/start� feature shut off the engine, then immediately all electronics shut down. The car basically �turned itself off. � vehicle then began drifting/coasting into intersection. Controls were unresponsive. I realized the power brakes and power steering were disabled. I braked very hard, which stopped the car. Had to keep brakes pressed very hard to keep car from moving. Ignition button was unresponsive. I then noticed a small message on the dashboard controls which read something like �start/stop ignition system disabled � put car in p. � (this was the only working electrical feature I noticed, the event was frightening and disorienting, but I'm fairly sure nothing else was functioning). I then shifted gearshift to park, and was able to start the car and drive away. I reported problem to dealer. Dealer claimed to inspect vehicle, and said they were unable to find anything wrong. Dealer said vehicle's computer had no record/memory of the incident. Dealer also seemed resistant to properly documenting the incident on their paperwork. I reported the problem to Audi corporate in auburn hills mi, explaining I no longer felt safe driving this car, and would not drive it again. Audi claimed to perform their own investigation, and their brief reply said that they were not obligated to do anything under applicable lemon laws. Car was in 3rd month of lease, ~150 miles. Previously I drove an Audi a4 2017 for 3 years so I was/am very familiar with the way Audis operate.

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