2018 GMC Sierra 2500HD — Carivo review carivo.co
Truck

2018 GMC Sierra 2500HD

Independent review & score by Carivo

Price Range $37,228–$49,323
Fuel Economy 10 MPG
Seating 5 passengers
Category Truck
Est. Annual Fuel $5,250/yr

Key Specifications — 2018 GMC Sierra 2500HD

Seating Capacity5 passengers
Body StyleTruck
Base Price$37,228–$49,323

Source: EPA FuelEconomy.gov & manufacturer data. Figures reflect base trim; actual specs vary by trim level.

About the 2018 GMC Sierra 2500HD

With an overall Carivo score of 6.9/10, the 2018 GMC Sierra 2500HD earns a Good rating among the trucks we've scored. Its strongest dimension is Safety at 8.3/10. It's a capable but unexceptional truck — stronger alternatives exist if you're willing to shop the segment carefully.

Reliability and safety are the two dimensions that matter most for long-term ownership costs. Reliability comes in at 7.5/10 in our assessment — above the middle of the pack for this class, though not flawless. On safety it earns 8.3/10: respectable, if not class-leading — several competitors bundle more driver-assist tech as standard. Check your trim's official ratings at nhtsa.gov.

The 8.1/10 performance score reflects a chassis and powertrain that punch above the segment norm — this is a truck you choose partly for the drive itself. Technology comes in at 7.5/10 — functional and modern, with wireless connectivity and core ADAS features, though some competitors pack more standard tech at this price point.

Priced from $37,228–$49,323, 10 MPG, seating 5, the GMC Sierra 2500HD sits in the mid-market bracket of the truck segment. Value lands at 7.5/10 — you get what you pay for, no more and no less, with a few rivals offering slightly better per-dollar returns. At 8 years old, resale value, parts availability, and whether a successor model has improved on its weak points are all worth investigating before committing.

Bottom line: There's a case for the 2018 GMC Sierra 2500HD, but it needs the right buyer. and several higher-rated rivals sell for similar money — comparison-shop before committing.

Carivo scores are our own editorial assessment, informed by NHTSA safety and recall records, EPA fuel-economy figures, and manufacturer-published specifications. Scores are reviewed periodically and updated when new data becomes available. See our full methodology →

How It Ranks Among Trucks

The 2018 GMC Sierra 2500HD ranks #457 of 515 trucks in the Carivo database — better than 11% of the segment. Its 6.9/10 overall score is 0.5 points below the segment average of 7.4/10. Its $37,228 starting price is about 6% above the segment's median of $35,138.

Rankings are recalculated as new vehicles and scores are added. See the full Truck ranking →

Which Sierra 2500HD Year Should You Buy?

Smart-money pick: the 2015 GMC Sierra 2500HD scores 6.7/10 — within striking distance of the 2018's 6.9 — and starts roughly $4,000 lower. If you don't need the newest model year, that's money better spent on a higher trim or kept in your pocket.

YearScoreStarting price (MSRP when new)
2025 7.3/10$46,762 Read review →
2024 7.2/10$45,400 Read review →
2023 7.1/10$44,038 Read review →
2022 7.2/10$42,676 Read review →
2021 7.1/10$41,314 Read review →
2020 7.0/10$39,952 Read review →
2019 7.0/10$38,590 Read review →
2018 (this review) 6.9/10$37,228
2017 6.8/10$35,866 Read review →
2016 6.8/10$34,504 Read review →
2015 6.7/10$33,142 Read review →

Pros & Cons — 2018 GMC Sierra 2500HD

✓ What it does well

  • Above-average reliability record with solid owner satisfaction data
  • Strong safety ratings from NHTSA and independent testers
  • Good overall value; holds its own against pricier alternatives in the segment
  • Competent performance that satisfies most everyday driving demands
  • Modern, intuitive tech suite with wireless connectivity and up-to-date ADAS

✗ Where it falls short

  • Fuel economy at 10 MPG is low — running costs will add up quickly
  • Brand resale values vary — check current market data before committing

More GMC Reviews

Explore the full lineup of GMC models scored by Carivo — ranked by overall score across reliability, safety, value, performance, and technology.