The Pontiac G6, a mid-size car available in coupe and sedan, was introduced in 2004 as a replacement to the Grand Am model. Despite being Pontiac's "go-to car" according to Edmunds.com, the G6 suffers from numerous mechanical issues. In particular, the G6 suffers multiple power steering problems which may result in an accident.
Pontiac technical service bulletins (TSBs) indicate the the G6's main steering problem is the loss of power steering assistance. TSBs report that the primary cause of power steering loss is electrical input signal failure within the steering column.
TSBs state that one indicator of power steering assistance loss is difficulty turning the wheel, which may require "increased steering effort." Additionally, the steering wheel may move slightly by itself. If the power steering unit fails completely, the steering wheel may become inoperative.
Prior to deciding to replace the entire steering column, a professional should determine whether replacing the power steering pump or power steering hoses will remedy the problem. Pontiac TSBs indicate that the most common remedy for the G6's power steering failure is steering column replacement, which can cost anywhere from $600 to $1500 (as of March 2011).
