OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes – 2019-2021 Buick Cadillac Chevrolet GMC

2021 Chevrolet Camaro

NHTSA ID Number: 10183198 Manufacturer Communication Number: 20NA196 Summary This service bulletin provides information and a service procedure for dealers/technicians on OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes.       SEOCONTENT-START Copyright 2020 General Motors LLC. All Rights Reserved. Service Bulletin Bulletin No.: 20-NA-196 Date: November, 2020 TECHNICAL Subject: … Read more

N202313440 – Missing or Loose Bolts on Start/Stop Accumulator – 2018-2020 Buick Cadillac Chevrolet GMC

2020 Chevrolet Blazer

October 29, 2020 NHTSA CAMPAIGN NUMBER: 20V668000 Missing or Loose Bolts on Start/Stop Accumulator Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the … Read more

Information on Diesel Exhaust Fluid Pump is Unable to Build Pressure After Replacement – 2017-2022 Cadillac Chevrolet GMC

2020 Chevrolet Silverado

NHTSA ID Number: 10205057 Manufacturer Communication Number: 20NA110   Summary This service bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump.     61 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET 4500HD 2021 CHEVROLET 5500HD … Read more

Loss of Sirius XM Audio Until XM Channel Change – 2020 Buick Cadillac Chevrolet GMC

2020 Chevrolet Camaro

NHTSA ID Number: 10187411 Manufacturer Communication Number: 20NA199   Summary This technical bulletin provides programming information for Radio Software Version U150 Update to correct software issues on infotainment systems IOS, IOT or IOU.   13 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCLAVE 2020 BUICK ENCORE GX 2020 CADILLAC XT4 2020 CADILLAC XT5 2020 CADILLAC XT6 2020 … Read more

Low Mileage Running Poorly With Rich Fuel Trims and/or Crank Case Overfull – 2016-2019 Buick Chevrolet GMC

2019 Chevy Equinox

NHTSA ID Number: 10161014 Manufacturer Communication Number: PIP5647 Summary This Preliminary information communicates A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level  will be found over full and have a  fuel odor. It … Read more