Suspension Noise problems of the 2011 Jeep Grand Cherokee

Air suspension compressor drains battery, makes buzzing noise, and causes vehicle to loose suspension.

Purchased 2011 Jeep Grand Cherokee overland used in summer of 2012. 3rd Jeep and have stayed with Jeep because felt they were a safe reliable car. Shortly after purchase the car would sound like it was "computing" near the engine--while off and key not near car. Told this was normal. Alarm started to go off for no reason, day time running light on driver side stopped working (not bulb) and started working a few days later on its own. Car no start or hard start several times. Check engine lights on and off, key not found, etc. 5/19/14 exiting highway at approx. 75 mph (59,000 miles) brakes don't work. Car slows but won't stop. No light illuminated for brake problem. It was petrifying. Called dealer in morning and they indicated not warranty and not recall so ordered brake booster from dealer and replaced. Was without vehicle for several days. 5/28/14 driving approx. 75 on highway--dash lights flash, car shakes and shudders uncontrollably, screen reads service air suspension system and etc code. Exit highway car has no suspension. Stop make phone call and restart car and no lights, warnings, and suspension back. Driving 35 mph on busy city street (in front of school) car dash flashes and goes black--a red lightning bolt appears and the car shuts off while driving. No brakes, power steering, hazard lights, suspension, etc. I was terrified! pushed down accelerator and car starts back up (similar to depressing gas peddle on golf cart). Took to dealer and they replaced a brake sensor and the suspension worked. Said they could not replicate the car shutting off while driving. Tipm must be the cause based on 1000s of owners comment. Filed complaint with Chrysler today. Frightened for my safety and the safety of other cars, people, etc. Drive over 100 miles per day on highway. Can't obtain tipm part. Must use car to work but safety concerns with driving.