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2006 GMC Sierra

US · Pickup · Standard Pickup Trucks 2WD

The 2006 GMC Sierra is listed in the US market as a pickup. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.

Engine
Varies by configuration: 4.3L 6-cylinder, 4.8L 8-cylinder, 5.3L 8-cylinder, 5.3L 8-cylinder (FLEX-FUEL), 6.0L 8-cylinder
Power
Not available
Torque
Not available
Transmission
Varies by configuration: Automatic, Manual
Drivetrain
Varies by configuration: RWD, AWD
Fuel
Varies by configuration: Gasoline, Flex fuel, Hybrid
Seating
Not available
Generic outline. Published dimensions for this vehicle are not available.
Specifications at a Glance

Key Performance & Dimensions

Units:
Engine / Powertrain
HYBRID
Power Output
Not available
Peak Torque
Not available
Combined Economy
Not available
Drivetrain
Not available
Transmission
Not available
Capacity
Not available
Exterior Dimensions
Not available
Market: US·Switch units anytime to convert horsepower, torque, fuel economy, and dimensions.
Compare 2006 GMC Sierra ↗

Engine

Engine
SpecificationValueSource
EngineVaries by configuration: 4.3L 6-cylinder, 4.8L 8-cylinder, 5.3L 8-cylinder, 5.3L 8-cylinder (FLEX-FUEL), 6.0L 8-cylinder
Displacement4.3 L to 6.0 L
Cylinders6 to 8
Fuel typeVaries by configuration: Gasoline, Flex fuel, Hybrid

Not available from our sources: Aspiration, Power, Torque.

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionVaries by configuration: Automatic, Manual
Gears4 to 5
DrivetrainVaries by configuration: RWD, AWD

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined17 mpg (13.8 L/100 km) to 13 mpg (18.1 L/100 km)
City16 mpg (14.7 L/100 km) to 12 mpg (19.6 L/100 km)
Highway20 mpg (11.8 L/100 km) to 16 mpg (14.7 L/100 km)

Not available from our sources: Electric range, Battery capacity.

Trims and configurations

17 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.

Recalls

NHTSA lists 6 recall campaigns for this model year. Last checked October 17, 2026.

  • 09E025000: EXTERIOR LIGHTING:HEADLIGHTS

    DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.

    Remedy: DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.

    Reported May 11, 2009. View on NHTSA

  • 07E066000: EQUIPMENT:ELECTRICAL

    CERTAIN CEQUENT 90 DEGREE 7-WAY RIGHT ANGLE ADAPTORS SOLD BY DISTRIBUTORS IN TOW PACKAGES FOR AFTERMARKET SALES TO TOW 5TH WHEEL RV TRAVEL TRAILERS. DUE TO INCORRECT WIRING OF THE HARNESS, THE TRAILER LIGHTS MAY NOT OPERATE PROPERLY.

    Remedy: ALL OF THE DEFECTIVE TOW PACKAGES ARE STILL AT THE DISTRIBUTOR LEVEL AND HAVE NOT BEEN SOLD TO ANY CONSUMERS.

    Reported August 28, 2007. View on NHTSA

  • 06V307000: WHEELS:RIM

    CERTAIN SPORT UTILITY VEHICLES AND TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES HAVE AN INCOMPLETE TIRE RIM DESIGNATION ON THE CERTIFICATION/TIRE LABEL LOCATED ON THE DRIVER'S DOOR EDGE. IN ADDITION, THE LABEL MAY ALSO BE MISSING THE TIRE LOAD RATING ON THE LABEL. ALTHOUGH THIS INFORMATION IS NOT…

    Remedy: A LABEL THAT WILL CORRECT THE LABEL ORIGINALLY INSTALLED WILL BE MAILED TO CONSUMERS ALONG WITH INSTALLATION INSTRUCTIONS. THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS TO INSTALL THE LABEL. THE RECALL BEGAON ON NOVEMBER 7, 2006.…

    Reported August 11, 2006. View on NHTSA

  • 06V289000: ENGINE AND ENGINE COOLING

    ON CERTAIN TRUCKS EQUIPPED WITH AN 8.1L V8 (RPO L8-VIN G) ENGINE HAVE A CONDITION IN WHICH THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP MAY FRACTURE RESULTING IN INADEQUATE RETENTION OF THE DAMPER.

    Remedy: DEALERS WILL REPLACE THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 31, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 AND GMC TRUCKS AT 1-866-996-9463.

    Reported August 3, 2006. View on NHTSA

  • 05V552000: EQUIPMENT:OTHER:LABELS

    CERTAIN TRUCKS AND SPORT UTILITY VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SHIPPED WITH TIRE AND LOADING INFORMATION LABELS LISTING AN INACCCURATE VEHICLE CAPACITY WEIGHT.

    Remedy: OWNERS WILL BE PROVIDED WITH CORRECTED LABELS AND INSTALLATION INSTRUCTIONS. AT THE CUSTOMER'S OPTION, A DEALER CAN INSTALL THE LABEL FOR THEM. THE RECALL BEGAN ON MARCH 31, 2006. OWNERS MAY CONTACT BUICK AT 1-866-608-8080, CADILLAC…

    Reported December 7, 2005. View on NHTSA

  • 05V455000: STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

    CERTAIN PASSENGER VEHICLES MAY HAVE BEEN BUILT WITH A POWER STEERING HOSE THAT IS NOT TO SPECIFICATION. UNDER EXTREME STEERING MANEUVERS, SUCH AS TURNING THE STEERING WHEEL FULLY TO THE LEFT OR RIGHT WHILE BRAKING, THE HOSE MAY FRACTURE AND LEAK FLUID.

    Remedy: DEALERS WILL INSPECT THE POWER STEERING HOSE(S) FOR TWO SUSPECT DATE CODES AND REPLACE THEM IF REQUIRED. THE RECALL WILL BEGIN ON OCTOBER 14, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, BUICK AT…

    Reported October 5, 2005. View on NHTSA

Data sources

  • EPA fueleconomy.gov · retrieved October 16, 2026 · US Government public data
  • NHTSA vPIC · retrieved October 16, 2026 · US Government public data

Source checked: October 16, 2026

Data verified: October 17, 2026

Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.

Compare

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Frequently asked questions

What engine does the 2006 GMC Sierra have?

Varies by configuration: 4.3L 6-cylinder, 4.8L 8-cylinder, 5.3L 8-cylinder, 5.3L 8-cylinder (FLEX-FUEL), 6.0L 8-cylinder. Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 2006 GMC Sierra?

Combined fuel economy is 17 mpg (13.8 L/100 km) to 13 mpg (18.1 L/100 km), as published by the source shown in the specification table.

Is the 2006 GMC Sierra front-wheel, rear-wheel or all-wheel drive?

Drivetrain: Varies by configuration: RWD, AWD.

Are there recalls for the 2006 GMC Sierra?

NHTSA lists 6 recall campaigns for this model year (last checked October 17, 2026). Details are in the Recalls section.