YearToAvoid

2011 Chevrolet Avalanche Problems, Recalls & Reliability

Verdict

Avoid

Complaint Index

100/100

#1 most-complained of 4 Avalanche years

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

The 2011 Chevrolet Avalanche ranks worst of 4 model years tracked, with a complaint index of 100 and 155 NHTSA complaints. Airbags account for 43% of complaints, and the truck carries 5 recalls, making it the year to avoid in this lineup.

Complaints
155
Recalls
5
Crashes / fires
3 / 0
Injuries / deaths
1 / 0
NHTSA overall rating
Not rated
EPA combined MPG
17
15 city / 21 hwy

Top 2011 Chevy Avalanche problems

NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.

  1. Airbags66 (43%)
  2. Other55 (35%)
  3. Structure & Body27 (17%)
  4. Engine16 (10%)
  5. Transmission & Powertrain12 (8%)
  6. Brakes10 (6%)
  7. Electrical System8 (5%)
  8. Suspension, Wheels & Tires3 (2%)
  9. Fuel System2 (1%)
  10. Steering1 (1%)

What owners report

  • Owners report the vehicle surging or lunging forward unexpectedly while slowing down to a stop, sometimes forcing hard braking to avoid a collision.
  • Some drivers describe the truck accelerating on its own while turning into a parking space, leading to a crash.
  • Owners report brake failure or ABS not engaging properly, in one case resulting in a rear-end collision with the airbags failing to deploy.
  • Some owners noticed the dashboard vibrating constantly, with a crack forming near the passenger-side airbag housing.
  • Owners describe sudden loss of engine power along with loss of power steering and power brakes while driving.
2011 Chevrolet Avalanche complaints: complaints filed per quarter162011 Q22014 Q22015 Q32016 Q42018 Q12019 Q22020 Q42022 Q3
201 complaints filed with NHTSA from 2011 Q2 to 2025 Q2; peak 2016 Q2 (16).

2011 Chevrolet Avalanche recalls

5 NHTSA recall campaigns list this model year.

  1. NHTSA 21V050000Feb 5, 2021Airbags2,641,272 vehicles

    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.

    Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

    Remedy: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 22, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on March 1, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328760.

  2. NHTSA 21V054000Feb 5, 2021Airbags1,778,128 vehicles

    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.

    Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

    Remedy: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 25, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed to 40 VIN owners on May 11, 2021. A second owner notification letter was mailed to all other owners on January 24, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328800.

  3. NHTSA 14V827000Dec 30, 2014Electrical System84,192 vehicles

    Electrical system:ignition

    General Motors LLC (GM) is recalling certain model year 2011-2012 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado HD, Silverado LD, Suburban, Tahoe, GMC Sierra LD, Sierra HD, Yukon, and Yukon XL vehicles. In the affected vehicles, the ignition lock actuator may bind, making turning the key difficult or causing the ignition to get stuck in the "Start" position.

    Risk: If stuck in the "Start" position, the ignition may suddenly snap back into the "Accessory" position, causing a loss of engine, steering, and braking power, increasing the risk of a vehicle crash. If the vehicle is in a crash, the air bags may not deploy, increasing the risk of occupant injury.

    Remedy: GM will notify owners, and dealers will inspect and replace the ignition lock housing, as necessary, free of charge. The recall began on February 12, 2015. Owners may contact GM customer service at 1-800-458-8006 (Cadillac), 1-800-222-1020 (Chevrolet), or 1-800-462-8782 (GMC). GM's number for this recall is 14696 for the original equipment, and 14912 for the service replacement parts.

See all 5 recalls for the 2011 Chevrolet Avalanche →

2011 Chevrolet Avalanche fuel economy and fuel cost

City
15 MPG
Highway
21 MPG
Combined
17 MPG
Annual fuel cost (EPA)
$3,800
15,000 mi/yr
Fuel
Gasoline or E85
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2011 compared with other Avalanche years

Complaint Index by model year (0 = fewest issues, 100 = most)02550751002010201120122013
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2010Good33117315.5
2011Avoid100155517
2012Best052317
2013Caution67111317

All Chevrolet Avalanche years: best and worst →

Frequently asked questions

Is the 2011 Chevrolet Avalanche reliable?
Based on NHTSA owner complaints and recalls, the 2011 Avalanche has the highest complaint index (100) among the 4 model years tracked, with 155 complaints and 5 recalls, so it ranks as the year to avoid relative to other Avalanche years.
What is the top problem area for the 2011 Chevrolet Avalanche?
Airbags are the top problem area, making up 43% of complaints (66 of 155), with a median failure mileage of 68,000 miles.
Does the 2011 Chevrolet Avalanche have an airbag recall?
Yes. NHTSA lists recall campaigns 21V050000 and 21V054000 covering front passenger air bag inflator replacement on the 2011 Avalanche.
How does the 2011 Avalanche compare to other years?
The 2011 model has a complaint index of 100, worse than 2010 (33), 2012 (0), and 2013 (67), making 2011 the worst-ranked year of the four tracked.
What is the fuel economy of the 2011 Chevrolet Avalanche?
The 2011 Avalanche is EPA-rated at 17 mpg combined (15 city / 21 highway), with an estimated annual fuel cost of $3,800.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.