why does my charging system failure light come on

20

Asked by Sep 28, 2015 at 06:34 PM about the 2005 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Here are details.  the battery is good as well as the alternator.   whenever I start the car it dies out and the light "charging system Failure" comes on.  I will try to start it again and it starts.  if I give gas on the first time it might start but I know that is not how it is suppose to work.  When this happens it also resets the sequence of the display beginning with the date.  I always have the mileage on there.  can any one help?

5 Answers

217,135

How do you know the alternator is good?

5 out of 5 people think this is helpful.
20

I had it check at advance auto

2 out of 2 people think this is helpful.
58,965

The alternator may be getting tired. Does it only happen when the car is cold? Like from sitting overnight. If so, I'd suspect that the alternator is failing. HTH. -Jim

1 out of 1 people think this is helpful.

I am having the same problem and have already replaced battery and alternator, even though it tested good - didn't know what else to try. STILL getting charging system failure, can't figure it out. And it can be intermittent, the warning might last for 2 minutes or 20 miles. What's going on??

I have been having the same issue. Pamela, someone mentioned that it may be the serpentine belt. Let me know if you guys get yours fixed.

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