Sierra 15 Hybrid 2WD — Hybrid · RWD · 6L 8-cyl · 21 MPG
Official vehicle configuration guide
2011 GMC Sierra
Compare 12 EPA-tested configurations, including the exact powertrain, fuel, driven wheels, engine, transmission and efficiency data available for this model year.
U.S. market 12 EPA configurations HybridGasolineFlex fuel
Compare researched years → Official EPA configuration data
12 configurationsChoose the closest tested configuration.
These entries distinguish powertrains and driveline combinations recorded by the U.S. EPA. They help narrow the vehicle, but they are not guaranteed retail trim or option-package names.
Match the fuel type, drive and transmission shown on the vehicle documents. A dealer package may use a different name.
Selected configurationSierra 15 Hybrid 2WD — Hybrid · RWD · 6L 8-cyl · 21 MPG
Hybrid- Fuel
- Regular
- Engine
- 6 L · 8 cylinder
- Drive
- RWD
- Transmission
- Automatic (variable gear ratios)
- EPA combined
- 21 MPG combined
- City / highway
- 20 / 23 MPG
- Electric motor
- 288V Ni-MH
- Range
- Not listed
- 240 V charge time
- Not listed
- Secondary / blended economy
- Not listed
- EPA vehicle class
- Standard Pickup Trucks 2WD
- Stop-start system
- Yes
Sierra 15 Hybrid 2WD — Hybrid · RWD · 6L 8-cyl · 21 MPG selected.
Configuration is not the same as trim. EPA records can separate engines, fuel systems, transmissions or driven wheels without identifying badges such as LX, XLE or Touring. Confirm the retail trim with the window sticker, build sheet or manufacturer VIN portal.
Compare every tested configuration
12 official recordsMechanical and efficiency differences.
All rows are visible in the page and link to their exact government record. EPA configurations identify tested hardware, not guaranteed retail trim names.
Sierra C15 XFE 2WD — Flex fuel · RWD · 5.3L 8-cyl · 18 MPG
View all 12 EPA configuration rows
| EPA carline | Powertrain | Engine / motor | Drive | Transmission | Combined | Range / charge | Source |
|---|---|---|---|---|---|---|---|
| Sierra 15 Hybrid 2WD — Hybrid · RWD · 6L 8-cyl · 21 MPG | HybridRegular | 6 L · 8-cyl · 288V Ni-MH | RWD | Automatic (variable gear ratios) | 21 MPG20 city / 23 highway | — | EPA record ↗ |
| Sierra 15 Hybrid 4WD — Hybrid · 4WD · 6L 8-cyl · 21 MPG | HybridRegular | 6 L · 8-cyl · 288V Ni-MH | 4WD | Automatic (variable gear ratios) | 21 MPG20 city / 23 highway | — | EPA record ↗ |
| Sierra C15 2WD — Gasoline · RWD · 4.3L 6-cyl · 17 MPG | GasolineRegular | 4.3 L · 6-cyl | RWD | Automatic 4-spd | 17 MPG15 city / 20 highway | — | EPA record ↗ |
| Sierra C15 2WD — Flex fuel · RWD · 5.3L 8-cyl · 17 MPG | Flex fuelGasoline or E85 | FFV | RWD | Automatic 6-spd | 17 MPG15 city / 21 highway | 337 mi EV | EPA record ↗ |
| Sierra C15 2WD — Flex fuel · RWD · 4.8L 8-cyl · 16 MPG | Flex fuelGasoline or E85 | FFV | RWD | Automatic 4-spd | 16 MPG14 city / 19 highway | 307 mi EV | EPA record ↗ |
| Sierra C15 2WD — Flex fuel · RWD · 6.2L 8-cyl · 14 MPG | Flex fuelGasoline or E85 | FFV | RWD | Automatic 6-spd | 14 MPG12 city / 18 highway | 290 mi EV | EPA record ↗ |
| Sierra C15 XFE 2WD — Flex fuel · RWD · 5.3L 8-cyl · 18 MPG | Flex fuelGasoline or E85 | FFV | RWD | Automatic 6-spd | 18 MPG15 city / 22 highway | 347 mi EV | EPA record ↗ |
| Sierra K15 4WD — Gasoline · 4WD · 4.3L 6-cyl · 16 MPG | GasolineRegular | 4.3 L · 6-cyl | 4WD | Automatic 4-spd | 16 MPG14 city / 18 highway | — | EPA record ↗ |
| Sierra K15 4WD — Flex fuel · 4WD · 5.3L 8-cyl · 17 MPG | Flex fuelGasoline or E85 | FFV | 4WD | Automatic 6-spd | 17 MPG15 city / 21 highway | 337 mi EV | EPA record ↗ |
| Sierra K15 4WD — Flex fuel · 4WD · 4.8L 8-cyl · 15 MPG | Flex fuelGasoline or E85 | FFV | 4WD | Automatic 4-spd | 15 MPG13 city / 18 highway | 286 mi EV | EPA record ↗ |
| Sierra K15 4WD — Flex fuel · 4WD · 6.2L 8-cyl · 14 MPG | Flex fuelGasoline or E85 | FFV | 4WD | Automatic 6-spd | 14 MPG12 city / 18 highway | 264 mi EV | EPA record ↗ |
| Sierra K15 AWD — Flex fuel · AWD · 6.2L 8-cyl · 14 MPG | Flex fuelGasoline or E85 | FFV | AWD | Automatic 6-spd | 14 MPG12 city / 18 highway | 290 mi EV | EPA record ↗ |
At a glance
What the official records cover.
Each option above is tied to a unique FuelEconomy.gov vehicle ID. EPA names sometimes expose a retail badge such as LE or Woodland Edition, but many records identify only the tested mechanical configuration.
Sierra 15 Hybrid 2WD, Sierra 15 Hybrid 4WD, Sierra C15 2WD, Sierra C15 XFE 2WD, Sierra K15 4WD, Sierra K15 AWD
Hybrid, Gasoline, Flex fuel
RWD, 4WD, AWD
6L 8-cyl, 4.3L 6-cyl, 5.3L 8-cyl, 4.8L 8-cyl, 6.2L 8-cyl
How to identify yours
Match the hardware before the badge.
- 1
Start with fuel and powertrain. Check whether the vehicle is gasoline, diesel, hybrid, plug-in hybrid, electric or fuel-cell.
- 2
Match driven wheels and engine. Use FWD, RWD, AWD or 4WD plus displacement/cylinder information from the window sticker or registration.
- 3
Confirm the exact EPA record. Select the closest option and open its FuelEconomy.gov link. Use a VIN-specific build sheet when you need the retail trim or option package.
Source: U.S. Department of Energy / EPA FuelEconomy.gov dataset ↗ · U.S. market snapshot 2026-11-04. Economy values are official estimates, not a promise of real-world consumption.
02 Feature research status
The configuration guide is live.
The official mechanical and efficiency data for this exact vehicle is published above. Hidden-feature instructions are a separate layer: they appear only after the correct owner manual, model-year scope and equipment caveats have been checked.
EPA configurations publishedOfficial records linkedOwner-manual features in review
Suggest an official source