I'm at a loss where I need to start with diagnostics. Is this a common issue. I've only owned this car since April. I've noticed if I don't drive my '08 TL for 2 days I will have to jump start my car and then it's fine long term. Battery & alternator are both brand new. Otherwise it runs like a dream. Any suggestions would be extremely appreciated! Thanks everyone.

 

These 3 codes are current. I've erased them and they come back on within 50 miles.I'm at a loss where I need to start with diagnostics. Is this a common issue? I've noticed if I don't drive my '08 TL for 2 days I will have to jump start my car and then it's fine long term. I don't know if they're related or not. Battery & alternator are both brand new. Otherwise it runs like a dream. Any suggestions would be extremely appreciated! Thanks everyone.

 

those are not common codes....
figure out if they are real codes, by resetting them...unhook the battery for a few mins to clear the codes.
perhaps, it has to do with your battery draining...most common culprit is the HFL...it drains batteries and could be the source of your false codes...err, I hope they are false.