- Buick Ownership
I know just disconnecting the negative battery terminal can seem to clear codes. Is there a better way? I used a Scotty Kilmer method yesterday. Remove negative terminal turn on lights for 5 minutes. Reconnect terminal start car put in neutral 5 minutes then shift to low foot on brake for 5 minutes. Then drive car for 20 minutes at speed above 35. The service engine light was totally off during all this until about 2 minutes on highway above 35. Came on and off for another 10 minutes. Then drove car 2 hours later and SE light stayed solid until home last night. Will check codes paper clip method. Any thoughts thanks!