GM Full Size SUV Flex Fuel Harness - 5.3L/6.2L Engine Dimming LED If you run your switch

If you run your switch in Auto

Requires All-wheel drive / "Intelligent 4 Wheel Drive" option

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Remove the 7mm retaining screw from each side of the console upper trim panel

GM Full Size SUV Flex Fuel Harness - 5.3L/6.2L Engine Dimming LED If you run your switchThis is the needed harness for adding E85 to your 2015 2020 full size GM SUV with either the 5. 3L or 6. 2L engine. This is the harness only. Sensor and engine tuning is also needed. Fits the following vehicles: 2015 2020 Chevrolet Tahoe with the 5. 3L or 6. 2L engine 2015 2020 Chevrolet Suburban with the 5. 3L or 6. 2L engine 2015 2020 GMC Yukon Yukon XL with the 5. 3L or 6. 2L engine 2015 2020 Cadillac Escalade Escalade ESV with the 5. 3L or 6. 2L