2011 GMC Sierra Denali

No clear pattern

0% of complaints about the 2011 GMC Sierra Denali arrived in its first year of service. That is an unusual figure for a 2011 vehicle, but with only 40 complaints on record the sample is too small to call it a pattern — the margin of error covers the range where ordinary vehicles sit. The figures below are reported without a verdict. The most-reported system is other (17 complaints), typically at 6.2 yr or about 68,000 miles.

Complaints: 40
Median age at failure: 6.2 yr
Median mileage: 65,000 n=28
Crash / fire / tow: 0% of reports
Safety recalls: 0

In owners’ own words

Other mileage not reported 4.7 yr in service

CRACKED DASHBOARD STARTED AT LEFT CORNER OF PASSENGER SIDE AIRBAG THEN CRACKED ABOVE INSTRUMENT PANEL AFRAID OF FLYING DEBRIS AND PUNCTURE OF AIRBAG. CONSTANTLY HEAR POPPING IN THE DASH MY P/U HAD APPROX 57000 MI AT TIME OF INCIDENT

Other mileage not reported 6.5 yr in service

DASHBOARD CRACKED. REPLACED ONCE UNDER WARRANTY AND IT CRACKED AGAIN. NOW VEHICLE OUT OF WARRANTY AND DEALERSHIP WON'T HELP.

Other mileage not reported 5.3 yr in service

MY DASH HAS TWO CRACKS THAT HAVE DEVELOPED ONE IS AT THE TOP OF THE AIR BAG AND MAY SPLINTER OR BREAK APART WHEN AIR BAG IS DEPLOYED.

How to read this

This is what owners reported, not a reliability rating. People file with NHTSA about alarming failures, not routine ones, and complaint volume tracks how many cars were sold.
Failure ages come from the incident date on each complaint, populated on about 83% of records. Mileage is shown where reported — NHTSA’s 2021 system change cut mileage capture to roughly 15%, so it thins out sharply after MY2020.
Every rank compares this vehicle only against others of the same model year. A 2025 car has not had time to accumulate five-year failures, so comparing early-failure share across years is meaningless.
Fourteen make-months distorted by media storms and mass recalls — Toyota in February 2010 ran 11× normal volume across 33 models — are excluded.
Recalls are manufacturer actions and authoritative; complaints are not. A recall listed here may already have been performed on any individual car. Check a specific VIN at nhtsa.gov/recalls.

2011 GMC Sierra Denali

When each system is reported — middle 50% of complaints

In owners’ own words

How to read this