My 09 has been running like junk for a couple months now. Thought it was just the car. Smart start key has had a week battery sometimes wouldnt even unlock the doors. Broke down and went got a new battery for it, now car is running better than ever. Is this coincidental? Would love feed back on this. iPhone ?
idk about coincidental, but definitely odd. the key allows the 12v to boot the car, after that, you can throw it out the window and keep driving no problem.
When I let my key fob battery gradually weaken and die, and left if that way for a couple months (the car was going to be parked for six weeks anyway, deal with it after), I had no car performance issues at all.
