Original keyfob erased itself after battery was disconnected for two weeks while replacing a failed engine. I worked with visteon automotive systems as an electrical engineer, manufacturing their remote keyless entry systems. I know very well that the keyfob should be programmed in non-volatile memory chips. Volvo does not seem to be doing that. This could be a public hazard issue when having to jump-start such a vehicle to get away from a natural disaster. The car may not start until you tow it to Volvo to re-program it. In my case, courtesy Volvo of scottsdale, Arizona sent me a bill for 10 hours of labor for keyfob re-programming. Ata rate of $68/hour. Visteon's programming procedure takes minutes. Volvo's takes many hours. This is another hazard issue in itself.

- Phoenix, AZ, USA