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.
SB-10-08-50-003B
GENERAL MOTORS: INFORMATION PROVIDED BY BULLETIN FOR ALL 2012 AND PRIOR GENERAL MOTOR TRUCKS AND PASSENGER VEHICLES REGARDING THE ADJUSTABLE COMFORT AND CUSTOM UPHOLSTERY OF THE DRIVER AND THE PASSENGER HEAD RESTRAINT. *PE
02047
SUPPLEMENT TO 03-06-04-002 4HEI-TC DIESEL ENGINE - COLD WEATHER NO START. ALSO INCLUDES 2002, 2003 AND 2004 MEDIUM DUTY. *TT
210901
CONDITIONS ON TRANSMISSION LIGHT ILLUMINATING. *SLC
060601
INFORMATION REGARDING REPROGRAMMING OF THE PCM WITH 5.7 LITER GASOLINE ENGINES. *SLC
010604021
SOME W SERIES MEDIUM DUTY TILT CAB MODELS MAY EXPERIENCE PCV SYSTEM FREEZE-UP WHEN OPERATED IN EXTREMELY COLD WEATHER CONDITIONS, CAUSING THE ENGINE REAR MAIN SEAL TO LEAK. *TT
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.