Reduced Propulsion Power without DTCs on Higher Mileage Vehicles (with P1.4 Cell Chemistry) – 2011-2012 Chevrolet & Opel/Vauxhall

2012 Chevrolet Volt

NHTSA ID Number: 10161888 Manufacturer Communication Number: 19NA049 Summary This technical bulletin provides repair information to correct a customer concern of reduced propulsion power without DTCs on higher mileage vehicles (with P1.4 Cell Chemistry).   2 Affected Products Vehicle MAKE MODEL YEAR CHEVROLET VOLT 2011-2012     SEOCONTENT-START Bulletin No.: 19-NA-049 Date: May, 2019 Service Bulletin TECHNICAL … Read more

No Start, Loss or Reduction of Propulsion – DTC P0AFA and/or P0BBE Set – 2011-2015 Chevrolet Volt & 2014-2016 Cadillac ELR

2016 Cadillac ELR

NHTSA ID Number: 10161927 Manufacturer Communication Number: 19NA117 Summary This informational bulletin provides diagnostic information for a No Start, Loss or Reduction of Propulsion condition, advising the tech to test the battery packs and not just replace the 12 volt battery.   8 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ELR 2014-2016 CHEVROLET VOLT 2011-2015     … Read more

Diagnostic Tip for SES Lamp Illuminated, Excessive Smoke from Tail Pipe, DTC P2002, P226D or P244A Set – 2010-2021 Chevrolet GMC Holden

2019 Chevrolet Silverado

NHTSA ID Number: 10183132 Manufacturer Communication Number: 16NA380   Summary This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.     SEOCONTENT-START Service Bulletin Bulletin No.: 16-NA-380 Date: November, 2020 INFORMATION Subject: Diagnostic Tip for Malfunction Indicator Lamp (MIL) … Read more

Possible Oil Consumption and/or Leaks – 2011-2019 Buick & Chevrolet

2019 Buick Encore

NHTSA ID Number: 10161948 Manufacturer Communication Number: 19NA101 Summary This technical bulletin provides a procedure to replace the intake manifold if diagnostics has found the Non Return Valve missing.   28 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE 2013-2019 CHEVROLET CRUZE 2011-2016 CHEVROLET SONIC 2012-2019 CHEVROLET TRAX 2013-2019   Parts MANIFOLD, INT 25200449     SEOCONTENT-START … Read more

Clock Shows Dashes And Cannot Be Set After Battery Disconnect – 2004-2012 Cadillac Chevrolet GMC Hummer Pontiac Saab

2012 Chevrolet Corvette

NHTSA ID Number: 10162113 Manufacturer Communication Number: PIT5652E Summary This Preliminary Information document advises technicians that a condition may occur with the listed vehicles where the radio clock may not display the time.   Dealer technicians are advised of a temporary proicedure to get the clock to display until Engineering has developed the permanent repair.  The listed Cadillac, Pontiac, and … Read more