For about 6 month now service traction control/ service stabiltrac warning has been on. Cruise control only work some times. Clicking under the dash and brake lights coming on while driving and parked with nobody in van. I got it new and is my company work truck. My service manager know about this but doesn't give me time to take in. Has about 50K miles. Anybody know if this is a common issue. Any help would be great.