Sierra 2500HD

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2009 GMC Sierra 2500HD Overview

The GMC Sierra 2500HD, the first in the HD line, is expected to have the best re-sale value in its class. The 2009 Sierra 2500HD is essentially the same truck as the 2008 model - ruggedly built and with two available engines, two transmissions, including the optional Allison 1000 six-speed automatic, RWD and 4WD, five cab and bed configurations, regular, Extended and Crew Cab, 6.4 foot and eight foot bed, five wheelbases and three trim levels, the Work Truck, SLE and SLT. Depending on the trim, equipment and engine size, the Sierra 2500HD can carry up to 3,924 lbs. of payload and tow up to 15,800 lbs. on a fifth-wheel hitch.

The ’09 Sierra 2500HD is delivered with the standard Vortec 6.0-liter gasoline powered engine that puts out 353 hp at 5400 rpm and 373 lb-ft of torque at 4200 rpm. Then there’s the optional, Isuzu-built Duramax 6.6-liter V8 turbodiesel that will crank out 365 hp at 3200 rpm and a pavement-pounding 660 lb-ft of torque at 1,600 rpm. The 6.0-liter gas engine is delivered with the standard six-speed overdrive transmission with a tow and haul mode. The turbodiesel is teamed up with the awesome Allison 1000 six-speed automatic, also with the toe and haul mode and also with electronic engine grade braking. No EPA mileage estimates are available for the Sierra 2500HD.

The base Sierra 2500HD Work Truck for ‘09 available in all cab and bed configurations and RWD and 4WD isn’t as basic as it sounds with such standard features as 16-inch painted steel wheels, solar-tinted glass, a CD player that’s MP3 compatible, four speakers, XM satellite radio, front independent and rear two-stage multi-leaf spring suspension, Onstar and the driver information center – a huge hit with owners in ’08. Options for the work truck include the 6.6-liter turbodiesel and the Allison 1000 six-speed auto, power windows locks and mirrors, A/C and cruise control.

Sierra 2500HD SLE also boasts RWD or 4WD and all cab and bed configurations, plus power doors, windows and heated, power exterior mirrors, standard, as well as A/C, a leather-wrapped steering wheel, premium cloth seating, chrome-styled steel wheels, tilt-wheel steering, Options for the ’09 SLE trim include dual-zone A/C, remote start and a six-disc CD player.

For 2009, the Sierra 2500HD SLT trim features standard17-inch machined aluminum wheels, all-terrain OWL tires, 10-way adjustable power front seats, fog lights, StabiliTrak stability control, Bluetooth hands-free communication technology and a Bose premium sound system. Options available for the SLT include a navigation system, power adjustable pedals, a power sunroof and a power sliding rear window.

Further options for the ’09 Sierra 2500HD include chrome tube side steps, HD tow packages, a 4.10 axle ratio, dual alternators and off-road packages with skid plates and an auto-locking rear differential.

Safety standards are maintained in the Sierra 2500HD with four-wheel disc ABS, Onstar, front driver and passenger airbags, tire pressure monitoring. Optional safety features include the StabiliTrak stability control system and a trailer brake controller. The NHTSA has not tested the Sierra 2500HD.

Owners in 2008 found a few glitches with the Sierra 2500HD such as a somewhat harsh ride, poor gas mileage and a few transmission issues, mainly with the standard six-speed overdrive automatic. The lack of available side airbags also didn’t sit well with a few owners in ’08. The vast majority of owners, however, were impressed with the quality styling, handling, roominess, solid feel and just plain value of the Sierra 2500HD.


Have Laptop. Will Travel. I'm retired and travelling the country in a 34' motor home. I'm really digging meeting people . . and sometimes their cars . . . getting a sense of what makes this nation tick. The plan is to visit all the national parks in the continental US, then cruise to Alaska to visit Denali, and to Hawaii to check out Haleakala and the Hawaii Volcano's national parks. Anyhow, when I'm not horsing the motor home around the roadways, I'm tooting around in the 2012 Ford Focus that we tow behind, or making runs to Home Depot and various malls with the 2004 F-150 that just won't die.

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Sierra 2500HD

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GMC Sierra 2500HD Questions

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My truck seems to have disappeared from your site. I can see t under my cars for sale but nothing when I search it as a customer. I noticed because activity slowed. There is also an icon that says “...

Why Is Your Price Analysis Different Than It Was When Posting?

When I was in the posting process, your system told me my price was a fair deal. When it posted your system says it is over priced. Why the difference? My price is right. I’ve received sight unseen ...

Rear Window Help

I have a 2009 GMC Sierra 4 door. The problem I'm having is: If a rear passenger rolls the window down they can not roll it back up. I will only roll up from the drivers door controls. This is the...

Truck Stalled In Middle Of Road Now In Very Cold Weather Please Help

Please help stranded in my truck and cold weather driving the truck and it made a loud noise a popping noise and now it won’t drive when I put it in drive

After Market Air Intake?

So iv got a 09 GM Sierra 6.0L 2500HD and im looking foe an after market air intake. I want K&N but the dont make one for an 2009!?!? but they do make them for 2008 and 2010... with 08 or 10 fit? Any...