Go Back   PY Online Forums - Bringing the Pontiac Hobby Together > PY Welcomes 2008-09 G8 owners > G8 General Tech/Discussion

G8 General Tech/Discussion G8 general tech and discussion area.

Thread Tools Display Modes
Old 09-13-2019, 04:34 PM
shook1's Avatar
shook1 shook1 is offline
Senior Member
Join Date: Feb 2007
Location: Jobstown, NJ
Posts: 131
Default alt warning at stop lights

I have a 2009 G8 GT. It runs and drives fine. Lately, when I sit at a stop light for too long, I get an alternator warning alert on my dash, and a battery icon. The car idles normally, and I see no other issues while this is happening. When I accelerate, the warnings immediately go away. I only see them when I sit for an extended period of time at a light.

I don't see an alternator or battery gauge in my car. I even pushed the buttons on the steering wheel, thinking I might see the voltage, like when it shows mpg and average speed.

Anyways, my first inclination is to think it is either a worn battery, or the alternator. Either of which will probably cost a couple hundred dollars. I have not tested anything with a multi-meter yet. Has anyone had this problem? I wonder if there is a known harness or connector issue with these cars.

Thanks in advance for any constructive advice.

Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -4. The time now is 07:26 AM.

Featured Vendors

Advertising Info