Diagnostic Tip – Service Trailer Brake Message With DTC C1115 C1116 C1117 Or C1118 – 2014-2015 Chevrolet Silverado & GMC Sierra

2015 Chevrolet Silverado

NHTSA ID Number: 10059079 Manufacturer Communication Number: PIT-5449   Summary GMC/CHEVROLET: ON SOME TRUCKS, MESSAGE APPEARS IN DIC REGARDING SYMPTOM OF AN INTERMITTENT SERVICE TRAILER BRAKE AND DIAGNOSTIC TROUBLE CODES (DTC) ARE SET IN CHASSIS CONTROL MODULE. MODEL 2014 SILVERADO 1500, SIERRA 1500, 2015 SIERRA, SILVERADO.   4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2015 … Read more

Upgrading an IO5 Non-Navigation Radio to an IO6 Navigation Radio – 2014-2015 Chevrolet Silverado & GMC Sierra

2015 Chevrolet Silverado

NHTSA ID Number: 10138138 Manufacturer Communication Number: 15-08-44-002   Summary This informational bulletin provides technicians with information on upgrading an IO5 non-navigation radio to an IO6 navigation radio.   5 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2014 CHEVROLET SILVERADO 2500 2015 GMC SIERRA 1500 2014 GMC SIERRA 2500 2015 GMC SIERRA DENALI 2015   … Read more

Text Messaging Features – 2014-2018 Buick Chevrolet GMC

2018 Chevrolet Corvette

NHTSA ID Number: 10154290 Manufacturer Communication Number: PIT5444D   Summary This Preliminary Information communication provides information to the technician about the text messaging feature on some newer General Motors infotainment systems. Pair the iPhone to the system then enter the Bluetooth settings menu, select the “i” icon next to the vehicle name in the device and enable … Read more

Diagnosing High Speed LAN Concerns – 2007-2014 Cadillac Chevrolet GMC Hummer

2014 Cadillac Escalade

NHTSA ID Number: 10114600 Manufacturer Communication Number: PIT4667D Summary This Preliminary Information communication advises the technician of additional steps for diagnosing General Motors high speed local area network. This should only be used if normal service information doesn’t lead to a diagnosis this is not a replacement for normal service information.   107 Affected Products Vehicles MAKE … Read more

Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting – 2011-2019 Cadillac Chevrolet GMC

2019 Chevrolet Silverado

NHTSA ID Number: 10154649 Manufacturer Communication Number: PI0564K   Summary This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).   111 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2011-2019 CADILLAC ESCALADE ESV 2011-2019 CADILLAC ESCALADE EXT 2011-2013 CHEVROLET … Read more