The best place to start troubleshooting any electrical problem with your tenth generation (2014, 2015, 2016, 2017 & 2018) GM Chevrolet Impala is to check for a blown fuse or a faulty relay in either the engine bay or the interior passenger compartment electrical panels. Take a look at my DIY instructions for the procedure by clicking on the text link or the thumbnail image below.
2014-2018 GM Chevy Impala Electrical Fuse Replacement Guide
