One problem related to brake light has been reported for the 1996 GMC Suburban. The most recently reported issues are listed below.
Consumer pulls a trailer with vehicle and if using hazard lights, all lights will blowout, including brake lights. Contacted GMC and truck customer relations who stated consumer could not use hazard lights while pulling a trailer. Consumer stated the hazard lights and brakes light on the trailer as well as the vehicle were no longer operative.