After a few years of daily use, the battery inside the key fob remote control for the keyless entry system of a first generation (2010, 2011, 2012, 2013, 2014, 2015 & 2016) GMC Terrain can become weak or stop working entirely. Check out my DIY tutorial for changing the key fob battery (with the replacement part number) by clicking on the text link or thumbnail image below.
2010-2016 GMC Terrain Key Fob Battery Replacement Guide
