This bulletin applies to 2018 GMC Canyon trucks equipped with a 2.5L engine and Terrain vehicles equipped with a 2.0L or 1.5L engine. On some vehicles, an electrical connection in the circuit board may fail in the engine control module.
Cruze Noise Normal
This bulletin applies to 2017-2019 Chevy Cruze, 2018-2019 Equinox and GMC Terrain vehicles, equipped with a 1.6L turbo diesel engine. You may encounter a concern where the engine cooling fan is running, making a ratcheting, squeak, chirp, moan, whine and/or buzz type noise heard shortly after the engine has been turned off.