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Sorry if this is redundant, but I'm new to this issue.
If the warranty impact is not a concern and I need a permanent solution these are the choices that will require some expense?

1) Install the Smart Start/Stop module, needs some simple wiring.
2) Plug in the Range Tech OBD II module, has to be unplugged when not in use.
3) Reprogram the ECU with the Trifecta Performance Mod, requires technical tools.

2021 Buick Enclave Essence with no button on the dash