Buick Rainer (2003 - 2006) - fuse box diagram - Auto Genius Jan 17, 2017Buick Rainer (2003 – 2006) – fuse box diagram Year of production: 2003, 2004, 2005, 2006 Engine Compartment Fuse Block The fuse block is located under the hood in the engine compartment on the driver’s side of the vehicle. Buick Rainier - 2005 Fuse Box Diagram Buick; Rainier - 2005 Fuse Box; These are some examples of symbols that may be found on the vehicle: v. Remember, the theft-deterrent system won’t activate if. you lock the doors with a key or use the manual. door lock. It activates only if you use a power door lock.