Please, can anyone help? My 2008 Expy EL Limited is displaying, "Park Brake Engaged" in the display center. I have verified that the brake is not engaged. I replaced the Parking Brake Warning switch, and have checked the brake fluid level and verified that there are no leaks. I also checked the brake booster and could not detect any vacuum leaks. Has anyone else ever dealt with this or heard of it? Please help! The only other thing I can think of is the hydraulic pressure switch in the master cylinder.