Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast after Factory Box Removed – 2007-2022 Chevrolet Silverado & GMC Sierra
NHTSA ID Number: 10205739 Manufacturer Communication Number: 070842006Q Summary This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed. 62 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2007-2013, … Read more