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2005 GMC Sierra

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2005 GMC Sierra Review

Powerful top-tier engines.

Reviewed by Automotive on


Entering production in 1998, the GMC Sierra is a GMC’s current flagship full-size pickup truck. The GMC Sierra and the Chevrolet Silverado are identical in almost every way; models assembled in the same plants, on the same platforms, with almost identical body styles. Even the list of options and features mirror one another. The GMC Sierra pickup truck is known as a dependable and powerful vehicle with a range of options to fit various work-related tasks, but also offering models more suited to urban use. The Sierra’s counterpart, the Silverado, received a range of awards including ""Truck of the Year"" a number of times through the years, and via a nearly-identical build, the Sierra can claim equal credit for each of these.

For the 2005 model year, there are 35 different trims available. These are split into work truck and base models at the lower end, to upgraded SLE and SLT models, and at the very top-end a Denali 4x4. Within each trim level drivers can choose from 4x4 or 4x2 models, regular, extended, and crew cab, and different bed lengths.

The Range

For 2005, GMC incorporates a couple of hybrid and flex fuel options.

What's New

For 2005, GMC incorporates a couple of hybrid and flex fuel options.


The 2005 GMC Sierra has a standard pickup profile with a large front grille displaying the GMC logo in the center and large square headlights on either side. Defined door creases give it a somewhat compartmentalized look overall. Varying cab and bed lengths are available, but minus the size difference, models have the same general appearance with the exception of the more stylish Denali exterior.


Satellite radio is optional for all models. The Denali and SLT models come with a six-disc CD changer. Crew Cabs can be equipped with a DVD entertainment system. Regular cabs can seat three with a front bench or two in twin bucket seats. Extended and crew cabs seat five with a front-bucket seat and rear-bench layout and six with a front-bench and rear-bench layout.

Performance & Handling

The 195-hp, 4.3-liter V-6 demonstrates descent acceleration with light or even moderate loads, but can struggle with bigger hauls. The next-tier engine, 285-hp, performs great for the majority of tasks and the huge 345-hp, six-liter V-8 is impressive within its class. There are three different four-wheel-drive systems available, and the Denali model gets all-wheel drive. The transmission has excellent response, and the ride is very quiet. Handling still feels like a truck, but city driving and parking is made much easier with optional Quadrasteer.


2005 GMC Sierra safety features include standard anti-lock brakes and daytime running lights.

EPA Fuel Economy

GMC Sierra 1500, Work Truck: 14/20 mpg city/highway
GMC Sierra 1500, extended cab, SLE: 15/19 mpg city/highway
GMC Sierra 1500, extended cab, SLT: 14/19 mpg city/highway
GMC Sierra 1500, extended cab, SLE Hybrid: 16/19 mpg city/highway
GMC Sierra 1500, regular cab: 14/20 mpg city/highway
GMC Sierra 1500, regular cab, SLE: 15/19 mpg city/highway

You'll Like

  • V-8 performance
  • Responsive automatic transmission
  • Quiet ride
  • Quadrasteer improves maneuverability

You Won't Like

  • Rides rough over road imperfections
  • Fuel economy

Sum Up

Powerful top-tier engines.

If You Like This Vehicle

  • Chevrolet Silverado 1500
  • Chevrolet Silverado 1500HD
  • Chevrolet Silverado 2500HD

See the New 2013 Sierra.

Front & Driver Side View

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