"The Fortin EVO-X-ONE-GM8 is the next-generation, high-speed all-in-one remote start and security solution specifically for Push-to-Start GM vehicles on the 'Global B' architecture from 2021 to 2025. At Lockdown Security, we designate the GM8 as the definitive kit for the 2021+ Chevrolet Tahoe/Suburban, GMC Yukon, and 2022+ Silverado/Sierra 1500 (Refreshed). The included THAR-X-GM8 T-harness and TB-X transponder bypass are engineered to handle the heavily encrypted data networks of modern GM trucks and SUVs, allowing for a 'No Key Sacrificed' installation—meaning you keep both of your factory remotes. This system enables '3x Lock' starting from your original proximity fob and is fully compatible with smartphone telematics. Because of the advanced encryption on these vehicles, the R-LINK 2 or R-LINK 3 programming tool is mandatory to complete the DCryptor process. If you want a secure, factory-fit remote start for your late-model GM truck that won't void your warranty, the EVO-X-ONE-GM8 is the industry leader."