That warranty is there for such reasons.
Have them fix it now since out of warranty the costs are amazing.
I have a Toshiba M35X-S349 which is only 5 months old and still under Best Buy warranty.
When either on Battery or AC, get error message battery is low, charge or plug in AC/. AC is already plugged in and Power meter indicates this. Battery is not low according to meter also. Computer beeps and shuts down.
This can happen at any time. Sometimes it beeps without any error message and shuts down. It will not start up again unless it is left alone for a while.
Don't hear the fan running or feel the hot air coming out of the vent. I can understand the CPU overheating and shutting down the computer but why the battery error messages before the shut down.
Is this a fan problem only or another problem also?