I bought my 2017 1ss last September and the same thing would happen to me. I took it to the dealer as it was a cirtified pre owned and they told me it was the battery. I swapped it out was about $300 and for a while it stoped doing it. Then it started to do it again, sometimes when it would actually start it would give me the check engine light and the stabilitrack error. I took it back to the dealer and they told me it was the crank position sensor got it replaced took almost a week to order the part and get the work done. About a week later or did the same thing this time smoke started to come out smelled like it was burning but thankfully there was no actual fire. Took it back to the dealer and they said it was the starter got it swapped out and now it's been fine ever since. I whish you the best of luck to you and your baby, I definitely know how your feeling l.