Volvo Repair: 1998 Volvo S70, volvo s70, 1998 volvo s70

Question
Couple of questions:
1) How do I reset the service light after I perform a LOF on my 98 Volvo S70?
2) Do you know how to reset a check engine light.  This comes on occansionly when I forgot to turn the gas cap to 3 clicks.
3) With changing the transmission fluid make my car with 62K miles shift smoother.  Can this be done personally?
4) What could cause the auto transmission arrow to blink if the car still shifts normally.

Thanks,
Ty  

Answer
1.it requires a special tool.

2. this requires the same tool

3. the best way is to have it done by a shop that has a machine to do this .this will flush all the fluid in the trans. even the torque convertor.

4. most common is a bad nuetral safety switch.