2006 pontiac torrent battery

i have a customer who has a 2006 pontiac torrent an its gonna need a new battery before i can install her system. with the factory radio almost all the way up tha lights start dimming and  I want to know if any1 has had to change 1 of these batteries before? it aint like any other vehicle in the owners manual it shows the battery  near the bottem of the motor an says take back to service center or place you bought vehicle an if i can help an save her time an some $ why not. any help would be great.tk

Sounds more like a alternator problem than a battery.

wow i dont know how i over looked that, thanks an sorry took awhile to respondtk

Lot of the newer GM have a loose connector on the main power fuse 100 amp near battery.

The battery is easy to change. The ECM sits on top of it and slides off. There is a plastic cover that locks over top the battery. Release the hook clips holding it and voila, you will see the battery. As mentioned, if the lights dim while the engine is running, the problem is with the alternator. The battery is only really designed to start the engine. Ideally, check the whole charging system and all connections. The battery may no longer be any good, if it hasn't been properly recharging.sparky

k thanks for your help guys i'll call her an let her now an have her stop by so i can check it outtk