Skip to content
GMC Sierra 3500Model year report

2015 GMC Sierra 3500 Problems

Compared with other GMC Sierra 3500 years

Typical for this model

50/100 1.0× a typical year · 50 = typical

Based only on NHTSA complaints, recalls and investigations. Not adjusted for how many vehicles were sold, and not a reliability rating. How this is calculated

Complaints
31filed with NHTSA
Median mileage
38,500miles, 22 complaints with mileage
Recalls
7campaigns on record
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

Sources: NHTSA records for the 2015 GMC Sierra 3500 (complaints, recalls, investigations). Report an error

NHTSA recorded 31 consumer complaints for the 2015 GMC Sierra 3500. The part named most often is electrical system, with 6 complaints (19% of the total), followed by exterior lighting (6) and brakes (4). 22 of the complaints include a mileage, and 64% of those were filed for vehicles with under 50,000 miles; the median is 38,500 miles. Of all complaints, 1 involved a crash, 1 a fire, 1 an injury, according to the filers. NHTSA lists 7 recall campaigns and 873 technical service bulletins for this model year. Electrical system complaints overlap with 165 technical service bulletins filed under the same part. Exterior lighting complaints overlap with 7 technical service bulletins filed under the same part. Compared with the other 4 GMC Sierra 3500 model years that have at least 25 complaints and are old enough to compare, this one scores 50 out of 100, where 50 is a typical year for the model (typical for this model). The comparison allows for the era and for how long each year has had to collect complaints, but not for how many vehicles were sold.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Also reported: Electronic stability control (1), Engine cooling (1), Seat belts (1), Seats (1), Suspension (1), Transmission and drivetrain (1), Wheels (1).

Example complaints

Electrical system: “This vehicle has had numerous electrical issue from the first few months of ownership. The trailer brake system failed and was replaced on october 2014. The vehicle has had many recalls that have been corrected by owner and service provider. The second summer of ownership the vehicle had radiator issues, and most recently electrical issues again and transmission issues. While driving the vehicle electrical dashboard goes into a flicker and shuts down. Gmc was able to fix this issue at the owners cost with the vehicle being out of service for 3 weeks. …”

NHTSA complaint #10991153, filed 2017-05, 50,000 miles

Exterior lighting: “I am afraid to drive at night because the head lights are terrible. I couldn't see the tire carcass left on the highway early enough to swerve around it. I hit it with the rear wheel and did approx. 6000.00 dollars damage to the vehicle.”

NHTSA complaint #10948167, filed 2017-01, 7,000 miles

Brakes: “I was traveling on a busy roadway at 40 MPH when fuel filter warning light came on suddenly and vehicle lost all power - including the loss of power steering and power braking. Thankfully I had not yet entered the highway and was able to slow vehicle down but with great difficulty and not injure anyone around and that day was not towing a load. Vehicle would not restart. I had it towed to nearest dealership who then informed me that the bosch cp4 fuel pump had exploded sending metal shrapnel throughout the entire engines fuel system. …”

NHTSA complaint #11209541, filed 2019-05, 103,000 miles

Engine: “While driving white smoke bellowing out front right tire wheel well. Upon inspection, smoke coming from exhaust pipe clamp near turbo. Smell so bad have to drive with window open. It appears engine on fire from the amount of smoke emitting from under the hood. At idle it get worse. It appears smoke is exhaust fumes leaking from the pipe joint. No engine light to indicate a problem.”

NHTSA complaint #10721253, filed 2015-05, 5,421 miles

Mileage when problems were reported

64% of the 22 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 9,000 and 64,000 miles.

27%0–105%10–2532%25–5014%50–755%75–10014%100–1505%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (22 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 38,500 miles.

Complaints by year filed

Trend: falling. Complaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

2015201772019202120242026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Recalls and investigations

See all 7 recalls for the 2015 GMC Sierra 3500 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 873 on record; the latest 10 are shown.

See all 873 bulletins →

Other model years of the GMC Sierra 3500

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
202652,2502———Too new
20251740,0001———Too new
20245138,3003——Too new to compareToo new
20232833,8001——47 · TypicalToo new
20223231,1543——54 · TypicalRising
202120101,5005———Rising
20205128,7008——95 · MoreRising
20191353,0047———Not enough data
20181453,8006———Not enough data
20171321,0007———Not enough data
20161927,5007———Rising
20153138,5007——50 · TypicalFalling
2014768,0003———Not enough data
20131449,2184———Not enough data
2012931,2004———Not enough data
20112077,2505———Falling
2009536,6005———Not enough data
20082559,0003——0 · FewerFalling
20071636,0003———Rising
20061149,9740———Not enough data
20052450,5000———Rising
20042484,0000———Rising
2003760,5000———Not enough data
20022079,0002———Stable
20013663,5402——Not compared (before 2008)Falling
20002657,0072——Not compared (before 2008)Rising
19991959,5001———Stable
199812128,0002———Not enough data
19971095,0001———Not enough data

All GMC Sierra 3500 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2015 GMC Sierra 3500 have?

NHTSA recorded 31 consumer complaints for the 2015 GMC Sierra 3500 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2015 GMC Sierra 3500 is reported most often?

Electrical system is named most often, in 6 complaints (19% of the total), followed by exterior lighting with 6.

Has the 2015 GMC Sierra 3500 been recalled?

NHTSA lists 7 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

At what mileage are problems with the 2015 GMC Sierra 3500 reported?

Among the 22 complaints that include a mileage, the median is 38,500 miles and the middle half falls between 9,000 and 64,000 miles; 64% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.