99-01-39-004I: Air Conditioning Odor – 2018 and Prior GM Passenger Cars and Trucks

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2018 Chevrolet Camaro Convertible

NHTSA ID Number: 10138139 Manufacturer Communication Number: 99-01-39-004G Summary This technical bulletin provides repair information for the correction of a customer concern of short duration musty odors emitted from the HVAC system at vehicle start-up in hot, humid conditions.   349 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2016 BUICK ENCLAVE 2009-2016 BUICK ENCORE 2013-2016 BUICK … Read more

Service ABS / TCS / Power Steering and/or Suspension Message DTC U0077 U0121 U0126 U0131 U0139 U0151 U0401 U0415 U0428 (Circuit 5986 High Resistance) – 2014-2019 Cadillac Chevrolet GMC

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2016 Chevrolet Silverado

NHTSA ID Number: 10162127 Manufacturer Communication Number: PIT5457D Summary This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and or Loss of communication with EBCM, SWPS, PSCM, and/or SCM. Technician may find Diagnostic Trouble Codes U0077, U0121, U0126, U0131, U0139, … Read more

Diagnostic Tip – Service Driver Assist Message – 2014-2017 Cadillac Chevrolet GMC

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2017 Cadillac Escalade

NHTSA ID Number: 10083360 Manufacturer Communication Number: PIT5445A   Summary THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN OF ADDITION INFORMATION WHEN DIAGNOSING A SERVICE DRIVER ASSIST MESSAGE WITH A DIAGNOSTIC TROUBLE CODE B172E AND OR A B172F. THE HAPTIC SEAT MOTOR HAS A PIGTAIL LEAD COMING OFF OF IT. IN MANY CASES THE WIRING PIGTAIL … Read more

MIL Illuminated, DTC P16F3 with Engine Power is Reduced Message Displayed in DIC – 2014 Chevrolet Corvette

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2014 Chevrolet Corvette

NHTSA ID Number: 10137224 Manufacturer Communication Number: PI1532A Summary This preliminary informational bulletin provides repair information on Engine Control Module (ECM)reprogramming to correct a customer concern of MIL illuminated, DTC P16F3 with “Engine Power is Reduced” message displayed in the DIC   1 Affected Product Vehicle MAKE MODEL YEAR CHEVROLET CORVETTE 2014     SEOCONTENT-START Bulletin No.: … Read more

Diagnosing Suspension And Rear End Sway – 2007-2016 Buick Chevrolet GMC Saturn

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2016 Chevrolet Traverse

NHTSA ID Number: 10127185 Manufacturer Communication Number: PIT5139C   Summary This Preliminary Information communication provides information to the technician about vehicles that the rear end has a sway feeling in the rear while switching lanes at highway speeds. Technician should follow all published Service Information diagnostics for the concern. Also inspect the rear suspension components for signs … Read more