Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
TSB17-110-001A
This service bulletin amends the previously reported service bulletin that provides instructions on how to replace the door hinges on affected models of emergency response chassis cabs in the event the as built hinge deforms. The amendment includes instructions on removing certain coatings and provides instruction on certain electrical components.
4S7-F9U7P-06
This service bulletin provides instructions on how to replace the door hinges on affected models of emergency response chassis cabs in the event the as built hinge deforms.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.