Nissan Repair: Xterra warning light, electrical test, warning light

Question
our 2003 Xterra the warning lights battery,oil and brakes came on at the same time... could it be anyone or all

Answer
Phil,

Check the output of the alternator and battery.  Go to Autozone or Checker and they will perform an electrical test for free.  It is probably something to do with the alternator or battery.  For some reason these all come on at the same time when one or the other goes out.