2018 VOLVO XC90 Forward Collision Avoidance Automatic Emergency Braking Problems

3 weeks ago we had the transmission module fail on our vehicle while it was being driven. According to Volvo forums, this is a multi-model year, multi vehicle issue for those with sunroofs. Accrding to the dealer in our case, the seal failed, and water runs into the compartment where the transmission module is located, causing it to fail. We had it happen twice, and both times on the highway, with the engine running ragged causing it ot accelerate and then quickly decelerate. There were 3 warnings that popped up-"Gear lever locked," "transmission acceleration performance reduced," and "Parking Brake unaavialble." It happened twice and and was towed to the dealer both times, as it was not drivable-once the vehicle was parked it would no longer move out of park. The first time the diagnosis and module reset was comped by the dealer (Borton Volvo, Golden Valley, MN) and the second...

CAR SUDDENLY ACTIVATED THE BRAKES, BRINGING IT TO A FULL STOP FROM 35MPH. IT WAS ON A CITY STREET. THERE WAS A 3-WHEELED MOTORCYCLE APPROACHING IN THE ONCOMING LANE, BUT IT WAS CENTERED IN ITS LANE, WITH NO RISK OF COLLISION. WE WERE APPROACHING AN UNCONTROLLED INTERSECTION (NO SIGNAL, NO SIGNS) WHEN IT OCCURRED. THE CAR STOPPED SO SUDDENLY THAT THE SHOULDER HARNESSES CAUSED SOME DISCOMFORT. HAD ANYONE BEEN FOLLOWING AT A CLOSE DISTANCE, A REAR-END COLLISION WOULD HAVE BEEN LIKELY.