Review on Range Technology RA005R GM Start/Stop Red Engine Optimizer by Russell Robertson

The idea behind this product seems great. Quality is good, assembly is easy. The problem is that it doesn't work with the 2020 GMC Sierra as stated on the Revain website and on their own website. After purchasing this unit, installing it and realizing it wasn't working on my truck, I contacted range support, here is their response: "Unfortunately, we don't officially support 10 speed vehicles yet. The units we currently have generally work for 10 speed vehicles. , but there are some minor issues that still need to be worked out with them before we officially release anything. You don't have a schedule at the moment.