One problem related to power steering light on has been reported for the 2003 Chevrolet Suburban. The most recently reported issues are listed below.
10/11/2 brakes failed plus parking brake failed and parking brake shoe assembly was not found upon dealer inspection. Replaced disc brakes and had parking brake shoe installed. 11/09/12 check engine light revealed ignition problem. New ignition wire set installed. 01/29/13 dash cluster failed, had no horn, no headlights, no interior lights, no speed control , no steering wheel lights for control buttons, no speedometer reading, no radio. Replaced dash cluster. 05/05/14 check engine light and stranded when vehicle would not start. Misfire messages on dealer equipment reading. 06/16/14 stranded again , vehicle would not start. Replaced ignition switch. 07/15/14 stranded again , vehicle would not start. Replaced starter relay. 02/16/15 driver heated seat coming on/off while driving on its own. 4 wd engaged on its own while driving and made driving uncontrolled. Awd engaged on its own while driving on dry smooth road. Stranded, would not start. Vehicle at dealer again today for this list of problems.