After a year of faithful service, our Prius has decided to misbehave occasionally. About 10% of the time you get out of the car and close the door, it beeps 3 times and will not lock using the door handle button. The manual suggests that this means the car is still in gear. It is the same beeping behavior seen when you put the car in park but leave it running, and you and the key fob get out to get the mail.
The dealer says there are no trouble codes logged. We can not get the problem to replicate at the shop, so they are unable to fix it. Their suggestion is that some RF field is causing the problem, but that seems unlikely because there is no pattern of locations or driver where the problem shows up.
The only other strange thing I have noticed is that sometimes when the car is locked, it does not unlock right away when you touch the handle. If you back away from the vehicle and try again it will work.
The dealer says there are no trouble codes logged. We can not get the problem to replicate at the shop, so they are unable to fix it. Their suggestion is that some RF field is causing the problem, but that seems unlikely because there is no pattern of locations or driver where the problem shows up.
The only other strange thing I have noticed is that sometimes when the car is locked, it does not unlock right away when you touch the handle. If you back away from the vehicle and try again it will work.