Re: Radio re-set issue
I've had a very similar issue the last few months. While driving, and in random situations, the radio would suddenly turn itself off and re-boot. Didn't matter whether it was on NAV, during a phone call, radio, etc., it would just reboot. After it did, I would notice in my NAV traffic setting (that I pay an extra $48 a year for through Sirius) that it would default to turning back on the (very annoying) traffic popup alerts, and a few other miscellaneous settings I had changed. It started happening more and more often. I took it in, and the dealer tried a software update (that is the first step). Didn't work. He then had to get approval from Buick to replace the radio, which they did. The next day, the exact same issue occurred again.
The dealer then said that sometimes cell phone bluetooth pairing could cause an issue, and recommended that I both delete the phone from the Buick, AND delete the Buick from the phone. I tried this and it was OK for a few days, but started again. This time, it took a while to get Buick approval to replace the radio again. Ultimately, they did, and so far so good.
In speaking with the mechanic, he quietly said that he sees this issue a bit, and that the Enclave NAV radios do have known problems. He also thought that Buick (or the radio manufacturer) never actually fixes them, but rather after the dealer sends them back, the facia plastic is cleaned up, and they're sent right back out as so-called "refurbished" replacements.
Keep on them and replace the radio. Good luck.
2014 Buick Enclave Premium AWD: Opal White/Titanium, Navigation, Sunroofs, Tow Package, 20" Ultra-Brights, Molded Assist Steps, Splash Guards, Lighted Door Sills, and Glove Box Light! Everything except a DVD player. Sweet!