Yukon

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

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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

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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

Advanced Diagnostics – Proactive Alert – 2015-2016 Cadillac Chevrolet GMC

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2016 Chevrolet Corvette

NHTSA ID Number: 10112820 Manufacturer Communication Number: PI1250D Summary This preliminat informational bulletin provides information on the proactive alert advanced diagnostics. Proactive Alert monitors the Engine Cranking system and the Fuel Delivery system and if either one of these monitored systems triggers certain performance issues, specific Customer and Dealer Communication are sent.   14 Affected Products Vehicles … Read more

Service 4wd Message With DTC C0392 or C0396 Stored In TCCM – 2014-2018 Chevrolet GMC Cadillac

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2016 Chevrolet Silverado

NHTSA ID Number: 10144458 Manufacturer Communication Number: PIP5304B Summary This Preliminary Information communication provides information to the technician about vehicles that have a “Service 4WD Message” displayed in the Driver Information Center. Technician may find Diagnostic Trouble Codes C0392 or C0396. Technician should check the terminal tension on the Transfer Case Control Module X1 connector. Technician should … Read more

Security Light on Intermittently / No Crank/No Start or Start Stall / Keyless Access Vehicles May Display No Remote/Fob Detected / Poor or No RKE Range / Service TPM – GM

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2018 Chevrolet Camaro ZL1

NHTSA ID Number: 10201176 Manufacturer Communication Number: PIC5650J   Summary This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this … Read more