2019 Cadillac XT4 POWER TRAIN,ELECTRICAL SYSTEM,UNKNOWN OR OTHER

In September, my vehicle would not start. I had it boosted and it started right up. The very same afternoon , it would not start and had it boosted. Drove it for 2 days without issue and on day 3 it would not start and boosting was unsuccessful. The vehicle could not be put in neutral and needed to be towed. The car spent several weeks at the dealer and I was told it was the battery which I replaced the key FOBS needed to be reprogrammed and then the wiring harness was chewed up. After several weeks at the show and over $1,000 later the car was returned. A month or so later , the car wouldn’t start, could not get boosted and had to be towed back to the dealership. After 2.5 weeks , I was told it was corrosion on the wiring harness. I’m concerned that these issues will persist and I could end up stalling in the middle of the highway, Vehicle only has 31,000 miles on it.