Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2011 GMC Sierra 1500 Reliability ReportCommon Problems, Repair Costs & Expert Verdict

82/ 100
MODERATE RISK

Grade: B

A capable full-size truck that offers excellent value, but be acutely aware of engine AFM issues and potential transmission weakness.

Full system breakdown + what I would do

Should You Buy the 2011 GMC Sierra 1500?

The 2011 GMC Sierra 1500 offers a compelling package of traditional truck capability and a comfortable ride, making it a strong contender in the used market. However, a few well-documented mechanical weak spots, specifically related to the Active Fuel Management (AFM) system and transmission, demand diligent pre-purchase inspection and ongoing maintenance. This truck can be a reliable workhorse, provided you're prepared for these potential areas of concern.

Biggest Strengths

  • Robust frame and suspension design
  • Strong V8 engine options (non-AFM) and towing capacity
  • Plentiful parts availability and service expertise

Top Risk Areas

The systems that break first on the 2011 GMC Sierra 1500. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Active Fuel Management (AFM) Systemmajor
2
Transmission (4L60E/4L70E)major
3
HVAC Blend Door Actuatorsmoderate
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

5 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

General Motors, LLC (GM) is recalling certain 2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL, and 2009-2011 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500 and Sierra 3500 vehicles originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." Additionally, GM is recalling certain 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL vehicles originally sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

General Motors, LLC (GM) is recalling certain 2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally GM is recalling certain 2011-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, Yukon XL and 2011-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." Additionally, GM is recalling certain 2010-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL and 2010-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MT, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI, and WY or "Zone C." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.

What breaks on the 2011 GMC Sierra 1500?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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GMC Sierra 1500 by Year

Compare reliability scores across nearby years of the GMC Sierra 1500. Click any year for its full report.

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