At the end of (the assembly) line after the vehicle is built, random vehicles are selected and each wheel lug nut is checked for the proper torque. This is a validation process.
So, how did one wheel lug nut on the front driver's side get tighten to just over 150 lbs on my just delivered car (09/2005)? That was the questions I asked my dealer's service manager.
His answer is that they use torque bars and I asked why they were messing with the wheels of my car.
He didn't have an answer but I suspect it is a way of getting future brake business.
2006 Sunburst Orange 2LT HHR
2008 Victory Red M5 HHR SS
2005 IBM/Blue M6 GTO -1 of 347, 360.3 HP, 353.2 Torque on Mustang Dyno
2003 Chevy Tahoe Z71