Originally Posted by Foiled Again
The trailer rolled, the truck didn't - it went head first into the embankment. I double checked pictures we took of the wrecked vehicles after the accident. The roof was undamaged. There was quite a bit of damage on the driver's side of the car. Oddly - the airbag DID NOT deploy at all, but if there were any sensors working in that truck at all, they should have measured a wreck seeing as how the frame was bent, and a couple of engine mounts broke. The front end was badly skewed.
When I called OnStar to try and get a refund they had no record of the accident and claimed they couldn't locate the truck - period. Of course they couldn't, but the time I called it had probably been crushed.
I don't recall the year of your old truck, and it is fruitless to try and discuss anything specific about your incident without being on scene, but on units prior to the advent of stability control WITH rollover mitigation and trailer sway control, the system was not sophisticated enough to sense non-air bag deployment accidents.
In the older ones (IIRC it is pre-2011 for the trucks) there has to be a deceleration rate great enough to deploy an air bag to trigger an Onstar notification.
This probably isn't the thread to discuss that, but if your air bags did not deploy, there would not be any Onstar intervention.