TSI70
Service Bulletin/Repair Instructions
OXYGEN SENSORS NOT HOOKED UP ON CHEVROLET CHASSIS. *JD
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.
TSI70
OXYGEN SENSORS NOT HOOKED UP ON CHEVROLET CHASSIS. *JD
TSI68
DASH AIR CONDITIONER NOT COOLING IN "NORMAL" POSITION. *TW
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.