WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Install the drive belt tensioner.
Install the drive belt tensioner bolt.
Tighten
Tighten the drive belt tensioner bolt to 50 N.m (37 lb ft).