Car Will Not Start problems of the 2015 GMC Acadia

Side blind zone sensors fail due to water intrusion - which is a known issue. A special coverage adjustment (#n172097060) was issued to repair this however not all vehicles are covered in the sca VIN search - and are not being addressed. My vehicle did not fall within the VIN search and experienced the same issues described in the sca. The day after the initial diagnostic and awaiting the part for repair I experienced a complete vehicle shut down due to the corruption of the sensor. I was not aware of this situation until after I researched the sca. This corruption is noted in the sca, however it only states part of the issues you may see. During the shutdown I was luckily not in motion, however, the corruption of the gmlan cause the airbags to disable, passenger airbag presence detection turned off, tire pressure sensor monitors were disabled, the entire dic shut down, instrument cluster shut down, radio and infotainment center shut down, door locks malfunctioned, power steering shut down, power brakes shut down, windows were disabled, and the vehicle would not restart until after about 15 minutes. There is no protection between the sensors for electrical interference and the gm lan. A sensor should not cause these issues, however it does, and it was also noted in the sca. This issue needs to be addressed. The malfunctioning sensors also cause a power drain on the battery, prior to the dic reporting the sensor failure, which is a fire hazard. Gm has not addressed the widespread issue of these faulty sensors outside the sca, nor the safety hazards of the lack of protection on the gm lan caused by electrical interference. If the vehicle is rear-ended, the sensors could cause corruption in the gmlan similar to the water intrusion issue - rendering the front airbags inoperable.

On 4/11/18 we took the car to the dealership for a side dtection alert. Was informed that the right side module needed replaced. We declined service due to cost of $628. 01/2019 we were have problems with the car starting. Last week multiple warning a messages started appear on the dashboard as the car was traveling and stationary. Took the car in for service and diagnoses was the right side detection model had severe corrosion and the left side model also had corrosion. Parts where not available so we drove the car home. Next day same issue with multiple warnings and alerts on the dash. My wife was able to make it home and after turning off the car it would not start even after charging the battery. Next day had the car transported to the dealership. After disconnecting the side sensor models, the car restarted and started functioning normal. Obviously this is a big saftey concern for a vehicle that is less than 4 years old, less than 50k miles, garage kept and well care for.