2010 GMC Sierra 1500: What's New, Specs & Features

Last updated August 4, 2026

The 2010 GMC Sierra 1500 is a light-update truck, not a redesign. Its main improvement is slightly better fuel economy from the 5.3-liter V8, especially in the XFE.

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About the 2010 GMC Sierra 1500

GMT900 generation (2007-2013), fourth model year.

For 2010, GMC positions the Sierra 1500 as a full-size pickup that blends work capability with a quieter, more polished feel than a basic fleet truck. The range stretches from simple job-focused trims to leather-lined Denali models, but the core appeal stays the same: strong towing and hauling ability, multiple cab and bed layouts, and a more upscale take on the traditional half-ton American pickup.

The lineup stretches from the basic Work Truck and everyday SLE to the leather-trimmed SLT and 403-horsepower Denali. The XFE focuses on conventional V8 fuel economy, while the Hybrid pairs a 6.0-liter V8 with electric motors and regenerative braking for drivers who spend more time in city traffic.

What changed, by category

Powertrain

Revised six-speed transmission programming, engine tuning, and a 3.08 axle ratio improve fuel economy on 5.3-liter V8 models, especially the XFE, which is rated at 15 mpg city and 22 mpg highway. The SL shifts from a gas-only powertrain listing to flexible fuel, while gas-only powertrains leave the SLE and SLT.

Styling

Denali alloy wheels change from standard to optional equipment.

Tech

Satellite radio changes from standard to optional on the Work Truck.

2010 GMC Sierra 1500 specs and features by trim

Feature	2010 GMC Sierra 1500SL0 in stock	2010 GMC Sierra 1500SLE1 in stock	2010 GMC Sierra 1500SLT0 in stock	2010 GMC Sierra 1500XFE0 in stock	2010 GMC Sierra 1500Denali0 in stock	2010 GMC Sierra 1500Hybrid0 in stock	2010 GMC Sierra 1500Work Truck0 in stock
Engine	V8, Flex Fuel, 4.8 Liter	V8, Flex Fuel, 5.3 Liter / V8, Flex Fuel, 4.8 Liter / V8, Flex Fuel, 6.2 Liter	V8, Flex Fuel, 5.3 Liter / V8, Flex Fuel, 6.2 Liter	V8, Flex Fuel, 5.3 Liter	V8, Flex Fuel, 6.2 Liter	V8, Hybrid, 6.0 Liter	V6, 4.3 Liter / V8, Flex Fuel, 4.8 Liter / V8, Flex Fuel, 5.3 Liter
Transmission	Automatic, 4-Spd w/Overdrive	Automatic, 6-Spd HD / Automatic, 4-Spd w/Overdrive	Automatic, 6-Spd HD	Automatic, 6-Spd HD	Automatic, 6-Spd HD	Automatic, EVT	Automatic, 4-Spd w/Overdrive / Automatic, 6-Spd HD
Drivetrain	2WD / 4WD	4WD / 2WD	4WD / 2WD	2WD	AWD	4WD	2WD / 4WD
Fuel Type	Flexible Fuel	Flexible Fuel	Flexible Fuel	Flexible Fuel	Flexible Fuel	Hybrid	Gas / Flexible Fuel
MPG City	14 mpg	13–15 mpg	13–15 mpg	15 mpg	13 mpg	21 mpg	14–15 mpg
MPG Highway	19 mpg	19–21 mpg	19–21 mpg	21 mpg	19 mpg	22 mpg	19–21 mpg
Horsepower	302 hp	302–403 hp	315–403 hp	315 hp	403 hp		195–315 hp
Torque	305 lb-ft	305–417 lb-ft	335–417 lb-ft	335 lb-ft	417 lb-ft	367 lb-ft	260–335 lb-ft
Max Towing	5500–6700 lb	9100–10400 lb	9200–10600 lb	9600 lb	9300 lb	6100 lb	6500–9700 lb
Rear Legroom	34.3–38.7 in	34.3–38.7 in	34.3–38.7 in	38.7 in	38.7 in	38.7 in	34.3–38.7 in
Seats	6	3–6	5	6	5	6	3–6
Doors	4	2–4	4	4	4	4	2–4
Safety & Security
4-Wheel Disc Brakes
Alarm System
Cruise Control
Rear Parking Sensors
Rear View Camera
Exterior Features
Alloy Wheels
Auto-Dimming Exterior Mirrors
Fog Lights
Heated Mirrors
Power Moonroof
Power Folding Exterior Mirrors
Power Mirrors
Privacy Glass
Side Steps
Tow Hooks
Entertainment & Electronics
Bluetooth
Front DVD Entertainment System
Navigation System
Rear DVD Entertainment System
Satellite Radio
Subwoofer
USB Ports
Comfort & Convenience
Auto-Dimming Interior Mirror
Cooled Seats
Dual Power Front Seats
Dual-Zone Climate Control
Heated Front Seats
Heated Steering Wheel
Integrated Garage Door Opener
Leather Seats
Leather-Wrapped Steering Wheel
Memory Driver's Seat
Power Adjustable Pedals
Power Windows
Remote Start
Tilt Wheel

How the 2011 GMC Sierra 1500 compares

The 2011 GMC Sierra 1500 is largely a carryover, not a redesign. Its one meaningful update is additional insulation and sealing intended to reduce wind noise in the cabin.

See the full 2011 changes

Frequently asked questions

What is the biggest change to the 2010 GMC Sierra 1500?

The biggest change is slightly better fuel economy from the 5.3-liter V8. Revised six-speed transmission programming, engine tuning, and a 3.08 axle ratio make the largest difference in the mileage-focused XFE.

Was the 2010 GMC Sierra 1500 redesigned?

No, the 2010 GMC Sierra 1500 was not redesigned. It remains part of the 2007–2013 generation and receives only modest powertrain and equipment updates, with no major styling, safety, cabin-tech, chassis, or suspension overhaul.

What fuel economy does the 2010 Sierra 1500 XFE get?

The 2010 Sierra 1500 XFE is EPA-rated at 15 mpg city and 22 mpg highway. Its 5.3-liter flexible-fuel V8, six-speed automatic transmission, efficiency-focused tuning, and 3.08 rear axle ratio support that result.

Did the 2010 Sierra 1500 powertrain lineup change?

Yes, but only modestly. The SL moves from a gas-only powertrain listing to flexible fuel, while gas-only powertrains leave the SLE and SLT; the broader engine lineup otherwise avoids a major shakeup.

Did any 2010 Sierra 1500 features become optional?

Yes. Alloy wheels change from standard to optional on the Denali, and satellite radio changes from standard to optional on the Work Truck.