Approx. 2 or 3 times a week the auto box in my 3 litre Safrane goes into "Safety mode" which basically means I only have 3rd gear and reverse. The temporary solution is to stop the car, turn off the ignition, then start the car again. Everything is then hunky dory for 2 or 3 days, then it happens again. I was advised to change the gearbox sump
filter and the transmission fluid, so I did that, and it hasn't made the slightest difference. Can anyone help?????