After disconnecting and reconnecting the battery the clock does not display on the nave system and you are unable to set it.
Jun 5, 2019 at 8:25 AM
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
Advertisement
KASEKENNY
AUTOMOTIVE REPAIR CONTRIBUTOR
18,907 POSTS
Hi C6BLUS,
We have gotten this question before and it appears to be a software issue that GM is aware of.
Take a look at this post from last month. Most people are calling GM customer care and getting the issue documented. However, most have reported that they have not come out with a fix yet.
Please let me know if you need more information. Thanks