I have a 2005 4runner that makes a horrible sound on the front driver’s side when using down hill assist. It comes from the front wheel area. It sounds like a huge hammer hitting a steel pole. If this is how it’s going to sound I won’t use it ever again. Does anyone know if this is right?

 

on my dads 2005 it sounds almost like a pneumatic impact wrench. I think its the computer controlling the brakes

 

Mine also sounds like an impact wrench, and is quiet like you are wearing earplugs. Loud sound doesn't seem right....

 

Sounds normal. Thing makes a racket.