https://learn.aarp.org/smart-drivertek/ is a free on line class to learn about all the new car safety features. The problem is when you log in to register you get a #400 error. I was on the phone for 2 hours with AARP and transferred to six different departments with no help. Some did not know anything about the class. Their so called computer program expert told me that it must be a Google problem and because he does not work for Google he could not help. Finally I talked to a supervisor that tried to also register and got the same #400 error and did not know why. So much for a free on line class that does not work.