Alternator/generator/regulator problems of the 2008 Jeep Patriot

I have had to replace 3 alternators throughout the past 2 months due to a electric problem. My battery light became illuminated each time I was on the expressway going around 70 mph. The battery light indicator tells me my battery is not properly charging due to my alternator. This leads to it having a problem with the computer in my car as I was told by my mechanic and that the problem with keep happening until I get another computer which costs a good amount to have replaced or fixed.

The contact owns a 2008 Jeep Patriot 4x4. The contact stated that the alternator failed and a grinding noise could be heard coming from the alternators bearings whenever the engine was started. The vehicle was taken to an authorized dealer where they were unable to diagnose the failure after performing a diagnostic test. The grinding noise continued to worsen. The manufacturer was notified and informed the contact that they would reimburse half of the repair costs. No further assistance was offered. The failure mileage was 27,000 and the current mileage was 66,000.