The Range DFM Module is a plug-and-play inline device for 2021-2024 GM SUVs and 2022.5-2026 GM 1500 trucks (Global B / Refresh models) that disables Dynamic Fuel Management (DFM) and Auto Start/Stop, keeping the engine in full-cylinder V8 mode for more consistent power and exhaust tone. Its smart inline design integrates with the ECM and allows a true return-to-stock when removed, with no trace. It fits 5.3L and 6.2L engines and installs in minutes. Made in the USA.
- Type: DFM Disabler module (inline)
- Connection: OBD-II inline
- Function: Disables DFM and Auto Start/Stop (holds full-cylinder V8 mode)
- Engines: 5.3L and 6.2L
- Design: Smart inline, integrates with the ECM
- Return to stock: Yes, no trace
- Finish: Black
- Emissions: 49-State emissions compliant; 50-State CARB EO pending
- Origin: Made in USA
- Sold as: Each
Vehicle Applications:
- 2021 Cadillac Escalade
- 2021 Cadillac Escalade ESV
- 2021 Chevrolet Suburban
- 2021 Chevrolet Tahoe
- 2021 GMC Yukon
- 2021 GMC Yukon XL
- 2022 Cadillac Escalade
- 2022 Cadillac Escalade ESV
- 2022 Chevrolet Silverado 1500
- 2022 Chevrolet Suburban
- 2022 Chevrolet Tahoe
- 2022 GMC Sierra 1500
- 2022 GMC Yukon
- 2022 GMC Yukon XL
- 2023 Cadillac Escalade
- 2023 Cadillac Escalade ESV
- 2023 Chevrolet Silverado 1500
- 2023 Chevrolet Suburban
- 2023 Chevrolet Tahoe
- 2023 GMC Sierra 1500
- 2023 GMC Yukon
- 2023 GMC Yukon XL
- 2024 Cadillac Escalade
- 2024 Cadillac Escalade ESV
- 2024 Chevrolet Silverado 1500
- 2024 Chevrolet Suburban
- 2024 Chevrolet Tahoe
- 2024 GMC Sierra 1500
- 2024 GMC Yukon
- 2024 GMC Yukon XL
- 2025 Cadillac Escalade
- 2025 Cadillac Escalade ESV
- 2025 Chevrolet Silverado 1500
- 2025 Chevrolet Suburban
- 2025 Chevrolet Tahoe
- 2025 GMC Sierra 1500
- 2025 GMC Yukon
- 2025 GMC Yukon XL
- 2026 Cadillac Escalade
- 2026 Cadillac Escalade ESV
- 2026 Chevrolet Silverado 1500
- 2026 Chevrolet Suburban
- 2026 Chevrolet Tahoe
- 2026 GMC Sierra 1500
- 2026 GMC Yukon
- 2026 GMC Yukon XL
Confirm 2022 truck compatibility by VIN: the 12th digit of a Refresh model must be '5' or higher.
Some applications may briefly enter 0-cylinder mode while coasting at 0% throttle. The in-cab Auto Start/Stop dash switch will still illuminate when pressed. Remove the module before GM over-the-air updates or before OBD-II dealer service.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
FAQ
What does the Range DFM Module do?
It disables GM Dynamic Fuel Management (DFM) and Auto Start/Stop on Refresh / Global B models so the engine stays in full-cylinder V8 mode.
Which vehicles does it fit?
2021-2024 GM SUVs and 2022.5-2026 GM 1500 trucks with 5.3L or 6.2L engines. Confirm a 2022 truck by VIN (12th digit '5' or higher).
Can I return the vehicle to stock?
Yes. The inline module can be removed for a true return-to-stock with no trace. Remove it before OTA updates or dealer OBD-II service.
Is it emissions compliant?
It is listed as 49-State emissions compliant, with a 50-State CARB EO pending.
Is this a genuine Range part?
Yes. It is a genuine Range Technology DFM Module.
