XFE ✓ Factory-verified

GMC · Regular Production Option

Fuel Economy Package

Years 2020 Models 1 Factory citations 1

Query this via API →

Also documented for CadillacChevrolet

Documented applications

Sierra — T1XX (2019–2026) →

• 2020 ✓ Factory-verified

  the 2020 list reads "Fuel economy, extra fuel economy"

  ⛭ GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.16.

This page aggregates every documented appearance of XFE in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.