2018 GMC Sierra 1500 Engine Problems

Source: NHTSA · Updated Oct 9, 2026 · 67 complaints analyzed

Owners have filed 67 complaints with NHTSA about engine problems on the 2018 GMC Sierra 1500, 22% of all complaints for this model year. Half of the reports with a mileage happened before 47,000 miles.

At what mileage do engine problems happen?

Based on 19 complaints that reported the odometer reading.

Under 10k miles2 · 11%
10k–25k miles2 · 11%
25k–50k miles6 · 32%
50k–75k miles5 · 26%
75k–100k miles1 · 5%
100k–150k miles2 · 11%
150k+ miles1 · 5%

How serious are the reports?

None of the 67 complaints report a crash, fire or injury.

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 28 complaints
2018: 1201812019: 2201922020: 3202032021: 6202162022: 4202242023: 7202372024: 5202452025: 282025282026: 11202611

n = 67 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists engine for the 2018 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.

Customer states: thinks crankshaft pulley is loose due to prior water pump replacement-crackshaft pulley has nothing to do with water pump replacement. Before inspecting/starting engine verified oil level-oil level is on full mark. Started engine-loud rattling/knocking noise from engine-engine has…

Received Sep 21, 2026 · NHTSA complaint 11765804

I was backing out of my garage and truck made strange noise and shut off . Tried to restart but just made ding and wouldn't turn over . Dash lights went blank. Had vehicle towed to shop and mechanic stated it was crank and connecting rods after he dropped the oil pan. I ordered new OEM engine and…

Received Sep 21, 2026 · NHTSA complaint 11765772

I own a 2018 GMC Sierra 1500 V8 5.3 liter which is at 46, 433 miles. Over the past few weeks I have noticed the transmission having difficulty shifting in first gear and lurching, and making shuddering noises, and as well making a constant ticking noise. After an experienced mechanic had put a…

Received Sep 6, 2026 · NHTSA complaint 11762401

Frequently asked questions

Do all 2018 GMC Sierra 1500s have engine problems?

No. NHTSA has 67 owner complaints about engine for the 2018 GMC Sierra 1500 (22% of the 305 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 2018 GMC Sierra 1500 engine?

No recall currently lists engine for this vehicle.

At what mileage do engine problems start?

The median reported mileage is 47,000 miles: half of the reports with a mileage came before that.

Other 2018 GMC Sierra 1500 problems

See all 2018 GMC Sierra 1500 problems or engine problems across all Sierra 1500 years.