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GMC Sierra 3500Model year report

2018 GMC Sierra 3500 Problems

Complaints
14filed with NHTSA
Median mileage
53,800miles, 7 complaints with mileage
Recalls
6campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

Sources: NHTSA records for the 2018 GMC Sierra 3500 (complaints, recalls, investigations). Report an error

NHTSA recorded 14 consumer complaints for the 2018 GMC Sierra 3500. The part named most often is brakes, with 6 complaints (43% of the total), followed by steering (3) and electrical system (2). 7 of the complaints include a mileage, and 43% of those were filed for vehicles with under 50,000 miles; the median is 53,800 miles. NHTSA lists 6 recall campaigns and 756 technical service bulletins for this model year. Brakes complaints overlap with 19 technical service bulletins filed under the same part. Steering complaints overlap with 25 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

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.

Example complaints

Brakes: “I was driving up hill the truck lost power died/shutdown so I had no power steering no power brakes we live on a country rural road. Had the truck towed to kendall chevrolet in eugene oregon where it has been since november 2 with electrical issues that they are trying to pinpoint.”

NHTSA complaint #11281407, filed 2019-11, 58,000 miles

Electrical system: “Driving on the freeway going approx 70 MPH and the ABS warning light, and Stabilitrak warning light suddenly turned on. I’m sure you can imagine how panicked I was going that fast on the freeway and having my brake warnings suddenly turn on. Especially with my entire family in the vehicle with me at the time. Could feel a difference when I was attempting to brake and exit the freeway. Had to apply tons of pressure to get the brake pedal to engage. The cruise control would no longer work, and the trailer brake monitoring system also began flashing. …”

NHTSA complaint #11705328, filed 2025-12

Exterior lighting: “Hid headlights on my truck flicker significantly, and dim and brighten, while driving vehicle on bumpy surfaces. This is brand new truck with 2500 miles on it. I paid extra for the all terrain version. Gmc's official response to me is that it is normal for hid headlights to flicker on/off, and they are refusing to do anything about the issue.”

NHTSA complaint #11081400, filed 2018-03, 1,000 miles

Mileage when problems were reported

43% of the 7 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 16,068 and 58,000 miles.

29%0–1014%10–250%25–5043%50–750%75–1000%100–15014%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (7 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 53,800 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

201820194202020222023202420252026
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

Recall details for the 2018 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. 756 on record; the latest 10 are shown.

See all 756 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 2018 GMC Sierra 3500 have?

NHTSA recorded 14 consumer complaints for the 2018 GMC Sierra 3500 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2018 GMC Sierra 3500 is reported most often?

Brakes is named most often, in 6 complaints (43% of the total), followed by steering with 3.

Has the 2018 GMC Sierra 3500 been recalled?

NHTSA lists 6 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 2018 GMC Sierra 3500 reported?

Among the 7 complaints that include a mileage, the median is 53,800 miles and the middle half falls between 16,068 and 58,000 miles; 43% 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.