| 2010 GMC Sierra Hybrid Technical Specifications |
| Overview |
| Model: | GMC Sierra Hybrid |
| Body style / driveline: | full-size, 4-door pickup; front-engine, 2WD & 4WD |
| Construction: | body-on-frame, all-welded, fully-boxed, ladder-type channel design, with hydroformed front and rear sections |
| EPA vehicle class: | full-size pickup |
| Manufacturing location: | Silao, Mexico |
| Engine |
| Type: | Vortec 6.0L V-8 FlexFuel (LZ1) |
| Application: | Sierra Hybrid |
| Displacement (cu in / cc): | 364 / 5967 |
| Bore & stroke (in / mm): | 4.00 x 3.62 / 101.6 x 92 |
| Block material: | cast aluminum |
| Cylinder head material: | cast aluminum |
| Valvetrain: | overhead valve, two valves per cylinder, variable valve timing |
| Ignition system: | coil-near-plug ignition, iridium electrode tip/iridium core spark plugs, low resistance spark plug wires |
| Fuel delivery: | Active Fuel Management; sequential fuel injection |
| Compression ratio: | 10.8:1 |
| Horsepower (hp / kW @ rpm): | 332 / 248 @ 5100* |
| Torque (lb-ft / Nm @ rpm): | 367 / 498 @ 4100* |
| Recommended fuel: | regular unleaded or E85 |
| Maximum engine speed (rpm): | 6000 |
| Emissions controls: | close-coupled catalytic converter, Quick Sync 58X ignition, returnless fuel rail, fast-response O2 sensor |
| EPA estimated fuel economy (city / hwy): | 2WD: 21 / 22
4WD: 21 / 22 |
| Transmission |
| Type: | 2-mode continuous electric ratio hybrid transmission with four fixed gears |
| Gear ratios (:1): |
| First: | 3.69 |
| Second: | 1.70 |
| Third: | 1.00 |
| Fourth: | 0.73 |
| Reverse: | infinite - 1.70 |
| EVT1: | infinite - 1.70 |
| EVT2: | 1.70 - 0.5 |
| Final drive ratio: | 3.08 |
| Vehicle Power System |
| Power electronics system: | 300-volt (transmission, air conditioning; 42-volt (power steering); 12-volt (vehicle accessories) |
| Batteries: | 300-volt (hybrid system); 12-volt (vehicle accessories) |
| Chassis / Suspension |
| Front: | independent, coil-over-shock |
| Rear: | two-stage leaf spring |
| Steering type: | 42-volt electric power-assisted rack-and-pinion |
| Steering ratio: | 17.75:1 |
| Steering wheel turns, lock-to-lock: | 3 |
| Brakes |
| Type: | power-assisted four-wheel discs with fully blended regenerative braking control, standard stability control, traction control and four-channel ABS; vented front discs, solid rear discs; twin-piston front calipers, single-piston rear calipers |
| Rotor diameter x thickness (in / mm): | front: 13 x 1.18 / 330.2 x 30
rear: 13.5 x 0.79 / 345 x 20 |
| Wheels/Tires |
| Wheel size and type: | 18 x 8-inch chrome-clad aluminum |
| Tires: | P265/65R18 AL2 |