gm charging system failure

As you know, the alternator is responsible for maintaining the proper charge on the battery, while the voltage regulator regulates the rate at which the alternator charges the battery. i keep getting a "charging system failure" message on instument panel. figured that was it. My car has an automatic transmission.

what are the most coomon issues besides alternator and battery that I can look into. 06 sierra 5.3 charging system failure came on, so since i was in a remote area, with one little car quest store, i bought a new alt.and installed it.drove home(200 miles) and watched the gauge start out at 12 volts, go to just over 14 all the way home.

Hello, thank you for writing in. When this happens the drop in voltage will cause the charging system failure light to come on. ... is a wire it could cost about 1 hour to trace down so I would say around 100 if the alternator is bad for a new one at GM cost 365 and 0.5 hours of labor at dealer. Q: What does it mean when your charging system failure light comes on out of no where while driving? Plus, you must use a scan tool to determine the root cause. GM charging system problems Fix GM charging system problems. If you have GM charging system problems, you must first understand how they work.

My car has 160578 miles. Late model GM charging systems are quite different that the standard alternator with internal regulator you’ve seen in prior years.