Diagnostic Tips

Service Charging System, Battery Saver Message or Low Battery Indicator Displayed On Electric Vehicles – 2011-2016 Chevrolet Cadillac Opel

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2015 Chevrolet Volt

NHTSA ID Number: 10163654 Manufacturer Communication Number: PIC6089B Summary This Preliminary Information communication provides information to the technician about vehicles that may have a Battery Saver Message or red Battery Indicator displayed in the Driver Information Center. Technician may find Diagnostic Trouble Code P0AF8 set in history. Technician will need to the 12 volt battery using the … Read more

DTC P0420: Catalyst System Low Efficiency – 2013 Chevrolet Cruze

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2013 Chevrolet Cruze

NHTSA ID Number: 10138111 Manufacturer Communication Number: PI1505 Summary This preliminary informational bulletin provides diagnostic and repair information to correct a customer concern that the Malfunction Indicator Lamp (MIL) is illuminated and technician finding DTC P0420: Catalyst System Low Efficiency.   1 Affected Product Vehicle CHEVROLET CRUZE 2013     SEOCONTENT-START Bulletin No.: PI1505 Date: Jul-2015 Subject: … Read more

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 CADILLAC … 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

Intermittent Audio/Display/Control and Resetting Concerns – 2014-2016 Buick Chevrolet GMC

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2015 Chevrolet Camaro

NHTSA ID Number: 10114880 Manufacturer Communication Number: PIC6106B Summary This Preliminary Information communication provides information to the technician about vehicles that may have the radio display that will go blank and come back on after a few seconds then display may show the splash screen or come back on to the last screen that was displayed. Technician … Read more