Diagnostic Tip for Malfunction Indicator Lamp (MIL) Illuminated – DTC P0442 and/or P0455 Set – 2000-2021 Buick Cadillac Chevrolet GMC

2021 Chevrolet Camaro

NHTSA ID Number: 10198890 Manufacturer Communication Number: 21NA124   Summary This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.     1024 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2016-2019 BUICK CENTURY 2000-2005 BUICK ENCLAVE … Read more

Shake and/or Shudder During Light Throttle Acceleration Between 40 and 128 KM/H (25 and 80 MPH) at a Steady State – 2015-2021 Cadillac Chevrolet GMC

2021 Chevrolet Colorado

NHTSA ID Number: 10205050 Manufacturer Communication Number: 19NA018   Summary This service bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 40 and 128 KM/H (25 and 80 MPH) at a steady state.     3 Affected Products Vehicle MAKE MODEL YEAR … Read more

Engine Run-On, Rough Running, Malfunction Indicator Lamp (MIL) Illuminated – DTC P0172 Set – 2010-2017 Buick Chevrolet GMC

2017 Chevy Equinox

NHTSA ID Number: 10205596 Manufacturer Communication Number: 21NA280   Summary This service bulletin provides diagnostic repair information for customer concerns of Engine Run-On, Rough Running, Malfunction Indicator Lamp (MIL) Illuminated.     32 Affected Products Vehicles MAKE MODEL YEAR BUICK LACROSSE 2010-2012 BUICK REGAL 2011 BUICK VERANO 2012-2017 CHEVROLET CAPTIVA 2012-2016 CHEVROLET CAPTIVA SPORT 2012 CHEVROLET EQUINOX … Read more

Fleet Vehicle Aftermarket Calibrations Speed Limited to 70 mph Reduced Power With No MIL or Vibration At Idle – 2015-2021 Chevrolet Colorado & GMC Canyon

2021 Chevrolet Colorado

NHTSA ID Number: 10204457 Manufacturer Communication Number: PIP5830   Summary This Preliminary information communicates concerns created by an aftermarket ECM calibration installed by fleet companies.  The Fleet companies install aftermarket ECM calibrations to limit the vehicle speed to approximately 70 mph and reduce the over all power output. This calibration also reduces the engine idle speed and may induce a vibration … Read more

Squeak, Clunking Type Noise Heard From Rear of Vehicle – 2015-2022 Chevrolet Colorado & GMC Canyon

2022 Chevrolet Colorado

NHTSA ID Number: 10205538 Manufacturer Communication Number: 17NA394 Summary This technical bulletin provides a procedure for lubricating the rear leaf springs and re-torque the bolts to correct a squeak, clunking noise.     Condition 1 Some customers may comment on a squeak type noise heard from the rear of the vehicle. Upon further investigation, the technician may … Read more