The best place to start when troubleshooting any electrical problems with your second generation (2015, 2016, 2017, 2018, 2019 and probably also the facelifted 2020 model year) GM Chevy Colorado truck is to check for a blown electrical fuse or a faulty relay in either the engine bay or interior passenger compartment electrical panels. Check out my DIY tutorial for the procedure by clicking on the text link or thumbnail image below.
2015-2019 GM Chevrolet Colorado Electrical Fuses Replacement Guide
