After new battery/alternator were put in, when starting car all the dash lights stay on for 5 minutes.

What is your question?

When car is cold, all lights and bell dings for exactly 5 minutes. Should I be worried? Car seems to drive ok.

What makes this problem better or worse?

Once warmed up, dash lights are normal

How long has your 2003 Buick Rendezvous had this problem?

Immediately after getting new battery/alternator