2015 GMC Sierra 1500 Engine Problems

Source: NHTSA · Updated Sep 25, 2026 · 84 complaints analyzed

Owners have filed 84 complaints with NHTSA about engine problems on the 2015 GMC Sierra 1500, 12% of all complaints for this model year. Half of the reports with a mileage happened before 57,000 miles. The words owners use most often: “push rod” (6% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Push rod: mentioned in 5 of 84 complaints (6%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical engine repair on the 2015 GMC Sierra 1500 at $2,950, and half of them between $1,700 and $7,650.

Based on 7 NHTSA complaints about this problem alone that state a repair bill or quote (2019–2025), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do engine problems happen?

Based on 37 complaints that reported the odometer reading.

Under 10k miles3 · 8%
10k–25k miles0 · 0%
25k–50k miles14 · 38%
50k–75k miles5 · 14%
75k–100k miles10 · 27%
100k–150k miles5 · 14%
150k+ miles0 · 0%

How serious are the reports?

Of 84 complaints, 1 mention a crash, 2 a fire.

GMC Sierra 1500 engine complaints by model year

Peak: 2021, with 314 complaints
1999: 119992000: 12001: 220012003: 32004: 520042005: 62006: 520062007: 192008: 1920082009: 132010: 1120102011: 162012: 620122013: 82014: 6920142015: 842016: 3920162017: 582018: 6720182019: 3092020: 23920202021: 3143142022: 23820222023: 2092024: 18820242025: 542026: 962026

n = 2,079 complaints · Source: NHTSA

Model yearEngine complaintsShare of that yearMedian miles
2026 Sierra 15009668%5,509
2025 Sierra 15005446%25,819
2024 Sierra 150018851%25,000
2023 Sierra 150020943%17,500
2022 Sierra 150023840%60,800
2021 Sierra 150031454%57,761
2020 Sierra 150023950%44,000
2019 Sierra 150030947%74,000
2018 Sierra 15006722%47,000
2017 Sierra 15005816%56,000
2016 Sierra 15003911%73,760
2015 Sierra 15008412%57,000
2014 Sierra 1500699%58,500
2013 Sierra 150087%151,500
2012 Sierra 150066%126,000
2011 Sierra 1500166%40,688
2010 Sierra 1500117%67,500
2009 Sierra 1500136%83,500
2008 Sierra 1500195%109,000
2007 Sierra 1500197%87,000
2006 Sierra 150053%143,000
2005 Sierra 150063%123,500
2004 Sierra 150052%96,494
2003 Sierra 150032%150,000
2001 Sierra 150021%174,900
2000 Sierra 150011%270,000
1999 Sierra 150011%677

When owners reported it

Peak: 2025, with 15 complaints
2015: 1201512016: 2201622017: 2201722018: 8201882019: 122019122020: 4202042021: 122021122022: 132022132023: 4202342024: 6202462025: 152025152026: 520265

n = 84 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists engine for the 2015 GMC Sierra 1500. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

In August, 2019, at 93,672 miles, GM covered a lifter failure on our 2015 GMC Sierra, V8 AFM engine. Only the left side was repaired. Now, in 2026 at 130,000, the right side has the same issue and needs repair. The estimate to repair is $16,697. This is a known issue and a safety concern.

Received Sep 25, 2026 · NHTSA complaint 11766980

Active Fuel Management Miss firing Idle rough Shaking Loss of power #7 cylinder loss of all compression Bad fuel mileage Skipping

Received Apr 20, 2026 · NHTSA complaint 11732442

The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at approximately 45 mph, he observed a popping noise beneath him. The contact stopped the vehicle and observed smoke emanating from the front of the vehicle. The vehicle went into limp mode, lost power, and when the…

Received Mar 17, 2026 · NHTSA complaint 11724912

Frequently asked questions

Do all 2015 GMC Sierra 1500s have engine problems?

No. NHTSA has 84 owner complaints about engine for the 2015 GMC Sierra 1500 (12% of the 719 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2015 GMC Sierra 1500 engine?

No recall currently lists engine for this vehicle.

At what mileage do engine problems start?

The median reported mileage is 57,000 miles: half of the reports with a mileage came before that.

How much does it cost to fix engine problems on the 2015 GMC Sierra 1500?

Owners report a typical cost of $2,950 (half paid between $1,700 and $7,650), from 7 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about engine problems on the 2015 GMC Sierra 1500?

The most frequent phrase is “push rod”, in 5 of 84 complaints.

Other 2015 GMC Sierra 1500 problems

See all 2015 GMC Sierra 1500 problems or engine problems across all Sierra 1500 years.