This was well worth posting - it is a NHTSA recall. Also, as a recall those few cars with this issue can get it fixed on GM's dime for the life of the car so there's no warranty period.I didn't mean to start any rants, and most 15's I would guess, are still under the "free" maintenance period, so it should be fixed when you go in for that. I just posted it for informational purposes.
Many plants use smart tools for critical assembly that have built in torque controllers and automatically log the torque data when used.How do they know at Lordstown over a period of 8 months 15 Units have loose bolts? If quality control was that precise G.M. could be putting out the top most well built Cars & Trucks in the World
Notice that curve at the 1:37 mark? I'm thinking the curve showed something wrong - like the screw got bound up rather than truly tightened. Or not enough turns for a normal tightening. Or perhaps it stopped because the worker took their finger off the trigger and it never reached "stop" torque but no one noticed the error at the time.So maybe some logs showed a few were set to the wrong spec or something?