It’s a family hand me down with every service on file until me - 8 years running. I keep thinking about CEM ECM issues but don’t even know what those acronyms are. There was once a problematic headlamp that mysteriously got resolved with a new battery (previous battery was incorrectly purchased/inst...

I don’t know where to start. I love my 05 XC90 V8 with 198K. Power System Failure light comes on regularly along with the transmission service light, brake system failure light, ABS, battery and check engine light of course. Been a problem for a while along with other symptoms. New battery gets drai...