Power seats

Why does power seat go down with car runing or not? 2000 GM doing this since new. Dealer finds no problem. Does this within 5 minutes or up to 40 minutes. Does friction hold seat up or is there a relay?

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.