Diagnostic Tips

Snow Plow Generator Harness Installation / Radio HVAC IPC Blank out When Operating a Snow Plow – 2014-2022 Chevrolet Silverado & GMC Sierra

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2019 Chevrolet Silverado

NHTSA ID Number: 10201326 Manufacturer Communication Number: PIT5387K   Summary This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering … Read more

False Code B124B sym04 Set Current in HMI Module with No Other Concerns Observed – 2014-2015 Buick Chevrolet GMC

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2015 Chevrolet Colorado

NHTSA ID Number: 10114482 Manufacturer Communication Number: PIC5910C   Summary This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B124B sym 04 in the HMI module. Technician should check the USB port operations if no issue found it should be considered a false code and no components should be … Read more

Unable To Charge Malfunction Indicator Lamp With DTC P16C1 Or P16C2 – 2011-2016 Chevrolet Cadillac Opel

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2016 Cadillac ELR

NHTSA ID Number: 10162131 Manufacturer Communication Number: PIC5921B   Summary This Preliminary Information communication provides information to the technician about vehicles that are unable to charge the hybrid battery and the malfunction Indicator lamp is illuminated on the Instrument Panel Cluster. Technician may find a current or history code P16C1 or P16C2 set in the Battery Charging … Read more

Various Heating And Cooling Concerns – 2014-2015 Chevrolet Camaro

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2015 Chevrolet Camaro

NHTSA ID Number: 10114580 Manufacturer Communication Number: PIC5965C   Summary This Preliminary Information communication provides information to the technician for a concern with the blower motor and or indicators are inoperative, the blower motor may be blowing but the speed can’t be adjusted, or the air conditioning is not blowing cold enough. Upon inspection there might be … Read more

How To Disable The Remote Express Down Feature For Key Fob – 2012-2015 Chevrolet Volt

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2015 Chevrolet Volt

NHTSA ID Number: 10114427 Manufacturer Communication Number: PIC5575C   Summary This Preliminary Information communication provides information to the technician about disabling the remote express down feature per the customer request. Technician will need to reprogram the Body Control Module and choose “DISABLE Remote Open All Windows feature of Remote Keyless Entry transmitter”.     4 Affected Products … Read more