I'm wondering if maybe it wasn't recognizing that the brake was depressed? I've had a few instances where it won't let me shift out of park because it doesn't recognize my foot on the brake. Admittedly, I was only using moderate force in those instances, so I just had to push the pedal down further and it solved my problem, but since yours went straight to AUX mode it makes me curious about that.kconklin33 wrote:Had an interesting bug the other day. Got in my car, foot on the brake, hit the push to start, doesn't turn on... car went into the auxiliary mode but wouldn't turn over but was getting juice yet never engaged the starter. Took my foot off the brake and tried again, tried for a bout 10 times and then finally started with no hesitation? Immediately following the CEL came on. Drove it a mile to work and then back after. Fired it up the next day to bring it somewhere to put an obd2 scanner on it and as I'm driving the CEL turns off. Haven't had a problem since but struck me as being strange.
below zero cold starts
Black 2011 Sport SLS AWD