The Lemon Index

All cars · GMC Sierra

2011 GMC Sierra.

The 2011 GMC Sierra is one of the most reliable years by owner complaints: 52 complaints in its first 3 years and a Lemon Index of 30, where 100 is the average car. Owners complain most about transmission & drivetrain, it has 6 recalls, and it gets 14 to 21 mpg combined. The best GMC Sierra year is 2010.

30Lemon Index · 100 = average car

One of the most reliable. 3.3× fewer complaints than average.

Best year 2010 · Worst year 2015

GMC Sierra
Photo shows a 2019 GMC Sierra. Kevauto, Wikimedia Commons · CC BY-SA 4.0 · background removed

Before you buy. What matters most for this car.

Owner complaints52first 3 years
Fuel economy14–21 mpgcombined, EPA
Crash test★★★★☆NHTSA overall

How serious. Out of 438 owner complaints, owners reported:

7crashes
7injuries
5fires
4tows

What owners complain about most. From owner complaints to the government.

transmission & drivetrain35%
speed control17%
steering13%
electrical12%
engine12%

Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.

Transmission problems in every GMC Sierra year →

When owners reported problems. From owner complaints to the government.

half by 55K
0K50K100K150K200K

Most owners who filed a complaint with NHTSA had 29K to 88K miles on the car (254 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.

  • airbags complaints mostly came at 44K–79K miles
  • body structure complaints mostly came at 39K–80K miles
  • transmission & drivetrain complaints mostly came at 10K–82K miles

Recalls 6

  • airbags 2021

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

  • airbags 2021

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

  • equipment 2018

    These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher.

Show all 6 recalls
  • electrical 2014

    Owners may unknowingly draw too much current through the vehicle's trailer harness resulting in the melting of fusible link for the auxiliary battery.

  • suspension 2011

    GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2011 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, COLORADO, EXPRESS, SILVERADO, SUBURBAN, TAHOE; AND GMC CANYON, SIERRA, SAVANA, YUKON AND YUKON XL VE…

  • suspension 2010

    GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2011 CADILLAC ESCALADE EXT, CHEVROLET AVALANCHE, SILVERADO LD AND GMC SIERRA LD VEHICLES.

Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.

Check a VIN for open recalls

Problems GMC told dealers about

GMC sent dealers 2023 repair notes for this car. The ones about its biggest problems:

  • Ei07082 - power steering fluid leaking from power steering gear/rack assembly
  • Chevrolet/gmc/cadillac: rear axle pinion bearing noise, gear noise and/or pinion bearing…
  • Buick/cadillac/chevrolet/gmc/oldsmobile and hummer: information on pitman arm shaft seal…

Ask a seller or mechanic if these were done. Some are free under warranty or a special program.

Government investigations

  • OpenDesiccated air bag inflator rupture2021
  • ClosedPedestrian alert sounds2023

NHTSA looks into a problem when enough owners report it. Many end in a recall.

Safety

Stability controlStandard
Collision warningNot offered
Lane departure warningNot offered
Crash test details
VersionOverallFrontSideRollover
GMC Sierra 1500 PU/RC 4WD★★★★☆★★★★☆★★★★★★★★★☆
GMC Sierra 1500 PU/EC 4WD★★★★☆★★★★☆★★★★★★★★★☆
GMC Sierra 1500 PU/CC 4WD★★★★☆★★★★☆★★★★★★★★★☆
GMC Sierra 1500 PU/RC RWD★★★★☆★★★★☆★★★★★★★★★☆
GMC Sierra 1500 PU/EC RWD★★★★☆★★★★☆★★★★★★★★★☆
GMC Sierra 1500 PU/CC RWD★★★★☆★★★★☆★★★★★★★★★☆
Fuel cost and engines

About $3050–4600 a year in fuel (EPA estimate). Engines: 4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl, 6.2L 8-cyl.

In owners' words

Transmission vibration in the 1500 to 2000 rpm range.

2011 GMC Sierra owner · NHTSA complaint 10567897
More owner reports

I was going 40mph when I went to stop quick to avoid an accident. I pressed on brakes truck did not slow down then all of a sudden it did down shift but at that the truck lunged forward causing me to clip the truck in front of me.

NHTSA complaint 10423109

Quick answers

Is the 2011 GMC Sierra reliable?

Yes, it is one of the most reliable by government complaints. It drew 3.3× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 30; 100 is average, lower is better). The best GMC Sierra year by this measure is 2010.

What are the most common 2011 GMC Sierra problems?

In owner complaints to the government, the parts named most are transmission & drivetrain (35%), speed control (17%) and steering (13%). That is the share of complaints, not the share of cars that break.

How many recalls does the 2011 GMC Sierra have?

6 safety recalls (latest: airbags). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.

What gas mileage does the 2011 GMC Sierra get?

14 to 21 mpg combined, depending on the engine (EPA estimate).

Is the 2011 GMC Sierra safe?

NHTSA gave it 4 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.

At what mileage do 2011 GMC Sierra problems start?

Half of the owners who gave a mileage reported the problem between 29,800 and 88,100 miles. The middle report was at 55,800 miles, from 254 complaints.

Does the 2011 GMC Sierra have transmission problems?

Transmission and drivetrain issues make up 35% of its owner complaints.

How much does the 2011 GMC Sierra cost in fuel a year?

About $3050 to $4600 a year, by the EPA's current estimate.

What engines does the 2011 GMC Sierra have?

4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl, 6.2L 8-cyl.

What GMC Sierra year is better than the 2011?

By owner complaints per car sold, the best recent years are 2010, 2012 and 2013.

Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works

Updated

Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data