| Model Year | 2006 | Make | GMC |
| Model | Sierra 2500HD | Trim Level | SL Long Bed 4WD |
| Manufactured in | UNITED STATES | Body Style | REGULAR CAB PICKUP 2-DR |
| Engine Type | 6.0L V8 OHV 16V | Driveline | 4WD |
| Tank | 34.00 gallon | City MPG | No data miles/gallon |
| Highway MPG | No data miles/gallon | Anti-Brake System | 4-Wheel ABS |
| Steering Type | Recirc | Front Brake Type | Disc |
| Rear Brake Type | Disc | Turning Diameter | 43.80 in. |
| Front Suspension | Ind | Rear Suspension | Live |
| Front Spring Type | Torsion Bar | Rear Spring Type | Leaf |
| Tires | 245/75R16 | Front Headroom | 41.00 in. |
| Rear Headroom | No data in. | Front Legroom | 41.30 in. |
| Rear Legroom | No data in. | Front Shoulder Room | 65.20 in. |
| Rear Shoulder Room | No data in. | Front Hip Room | 61.40 in. |
| Rear Hip Room | No data in. | Curb Weight | No data lbs |
| Curb Weight | 5398 lbs | Overall Length | 224.50 in. |
| Overall Width | 79.70 in. | Overall Height | 76.20 in. |
| Wheelbase | 133.00 in. | Ground Clearance | 10.60 in. |
| Track Front | 68.60 in. | Track Rear | 66.00 in. |
| Cargo Length | 97.60 in. | Width at Wheelwell | 50.00 in. |
| Width at Wall | 64.80 in. | Depth | 19.50 in. |
| Standard Seating | 3 | Optional Seating | No data |
| Passenger Volume | No data cu.ft. | Cargo Volume | No data cu.ft. |
| Standard Towing | 10300 lbs | Maximum Towing | 15800 lbs |
| Standard Payload | 3802 lbs | Maximum Payload | 3802 lbs |
| Standard GVWR | 9200 lbs | Maximum GVWR | 9200 lbs |
| Warranty Duration | 36 month | Warranty Distance | 36,000 mile |
| Powertrain Warranty Duration | 36 month | Powertrain Warranty Distance | 36,000 mile |
| Rust-duration | 72 month | Rust-distance | 100,000 mile |
| MSRP | $26,695 USD | Dealer Invoice | $24,426 USD |
| Destination Charge | $875 USD | Child Safety Door Locks | N/A |
| Locking Pickup Truck Tailgate | N/A | Power Door Locks | Opt. |
| Vehicle Anti-Theft | Std. | 4WD/AWD | Std. |
| ABS Brakes | Std. | Automatic Load-Leveling | N/A |
| Electronic Brake Assistance | N/A | Limited Slip Differential | N/A |
| Locking Differential | Opt. | Traction Control | N/A |
| Vehicle Stability Control System | N/A | Driver Airbag | Std. |
| Front Side Airbag | N/A | Front Side Airbag with Head Protection | N/A |
| Passenger Airbag | Std. | Side Head Curtain Airbag | N/A |
| Second Row Side Airbag | N/A | Second Row Side Airbag with Head Protection | N/A |
| Electronic Parking Aid | N/A | First Aid Kit | Opt. |
| Trunk Anti-Trap Device | N/A | Keyless Entry | N/A |
| Remote Ignition | N/A | Air Conditioning | Std. |
| Separate Driver/Front Passenger Climate Controls | Std. | Cruise Control | Std. |
| Tachometer | Std. | Tilt Steering | Std. |
| Tilt Steering Column | Std. | Heated Steering Wheel | N/A |
| Leather Steering Wheel | N/A | Steering Wheel Mounted Controls | N/A |
| Telescopic Steering Column | N/A | Adjustable Foot Pedals | N/A |
| Genuine Wood Trim | N/A | Tire Pressure Monitor | N/A |
| Trip Computer | N/A | AM/FM Radio | Std. |
| Cassette Player | N/A | CD Player | Std. |
| CD Changer | N/A | DVD Player | N/A |
| Voice Activated Telephone | N/A | Navigation Aid | N/A |
| Second Row Sound Controls | N/A | Subwoofer | N/A |
| Telematics System | N/A | Driver Multi-Adjustable Power Seat | N/A |
| Front Cooled Seat | N/A | Front Heated Seat | N/A |
| Front Power Lumbar Support | N/A | Front Power Memory Seat | N/A |
| Front Split Bench Seat | Std. | Leather Seat | N/A |
| Passenger Multi-Adjustable Power Seat | N/A | Second Row Folding Seat | N/A |
| Second Row Heated Seat | N/A | Second Row Multi-Adjustable Power Seat | N/A |
| Second Row Removable Seat | N/A | Third Row Removable Seat | N/A |
| Cargo Area Cover | Opt. | Cargo Area Tiedowns | Opt. |
| Cargo Net | Opt. | Load Bearing Exterior Rack | Opt. |
| Pickup Truck Bed Liner | Opt. | Power Sunroof | N/A |
| Removable Top | N/A | Manual Sunroof | N/A |
| Automatic Headlights | Std. | Daytime Running Lights | Std. |
| Fog Lights | N/A | High Intensity Discharge Headlights | N/A |
| Pickup Truck Cargo Box Light | Std. | Running Boards | Opt. |
| Front Air Dam | Std. | Rear Spoiler | N/A |
| Skid Plate | Opt. | Splash Guards | Opt. |
| Wind Deflector for Convertibles | N/A | Power Sliding Side Van Door | N/A |
| Power Trunk Lid | N/A | Alloy Wheels | N/A |
| Chrome Wheels | Std. | Full Size Spare Tire | Std. |
| Run Flat Tires | N/A | Steel Wheels | Std. |
| Power Windows | N/A | Electrochromic Exterior Rearview Mirror | N/A |
| Glass Rear Window on Convertible | N/A | Heated Exterior Mirror | N/A |
| Electrochromic Interior Rearview Mirror | N/A | Power Adjustable Exterior Mirror | N/A |
| Deep Tinted Glass | Opt. | Interval Wipers | Std. |
| Rain Sensing Wipers | N/A | Rear Window Defogger | Opt. |
| Rear Wiper | N/A | Sliding Rear Pickup Truck Window | Opt. |
| Tow Hitch Receiver | Opt. | Towing Preparation Package | Opt. |
