Yukon

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

Cold Start Misfires – 2014-2016 Cadillac Chevrolet GMC

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2016 Chevrolet Corvette

NHTSA ID Number: 10127175 Manufacturer Communication Number: PIP5323 Summary This Preliminary Information communication provides information to the technician about vehicles with misfires or roughness on cold start up. Technician may find a Diagnostic Trouble Code P0300 stored. Technician will add coolant dye to the system, run engine through warm up, pressurize the cooling system on a cold … Read more

Coolant Smell and/or Slight Leak at Radiator – 2014-2016 Cadillac Chevrolet GMC

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2016 Chevrolet Silverado

NHTSA ID Number: 10155058 Manufacturer Communication Number: PI1513F   Summary This preliminary information bulletin provides a procedure for radiator and engine coolant thermostat replacement to eliminate coolant smell and/or a slight leak at the radiator.   20 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2015-2016 CADILLAC ESCALADE ESV 2015-2016 CHEVROLET SILVERADO 1500 2014 CHEVROLET SILVERADO 2500 … Read more

Transmission Overfill – 2015-2016 Cadillac Chevrolet GMC

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2015 Chevrolet Corvette

NHTSA ID Number: 10089882 Manufacturer Communication Number: 15667 Summary 15667 – SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO CHECK AND ADJUST TRANSMISSION FLUID LEVELS ON THE VEHICLES LISTED ABOVE. THESE VEHICLES MAY EXPEL EXTRA TRANSMISSION FLUID OUT OF A VENT FITTING AND HOSE ON THE TOP OF THE TRANSMISSION.   11 Affected Products Vehicles MAKE … Read more