54 GMC reliability Statistics

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These gmc reliability figures cover the measurement periods and populations identified in the available source material. Estimates, surveys and forecasts retain their reported scope.

Key GMC reliability Statistics

The main findings are:

  • RepairPal gives GMC an average reliability rating of 3.0 out of 5.0 (2026 rating page; GMC vehicles, 2010-2019 model years).
  • ISeeCars rates GMC Sierra 3500HD reliability at 7.7/10 (2026 rating page).
  • ISeeCars rates GMC Acadia reliability at 7.3/10 (2026 rating page).
  • ISeeCars estimates a 22.0% chance that GMC Sierra 2500HD reaches at least 250,000 miles (2025 longevity study).
  • The 2025 J.D. Power study industry average was 202 problems per 100 vehicles after three years (2025 study, 2022 model-year vehicles).
  • Consumer Reports’ current brand table gives GMC a predicted reliability score of 31 (2025 report using 2023-2025 and early 2026 data; GMC brand).
  • CarComplaints has 5,101 GMC complaints on file (accessed 2026-10-02; GMC vehicles).
  • GMC ranks 22nd out of 32 car brands in RepairPal’s reliability ranking (2026 rating page; all car brands in RepairPal comparison).
  • ISeeCars ranks GMC Sierra 3500HD 1st among listed GMC models (2026 rating page; GMC lineup).
  • ISeeCars ranks GMC Acadia 6th among listed GMC models (2026 rating page; GMC lineup).
  • GMC Sierra 2500HD’s 250,000-mile probability is 1.7 times the overall truck average (2025 longevity study; GMC Sierra 2500HD vs trucks).
  • Industry problems increased 6% from the 2024 J.D. Power study (2024 to 2025 study comparison).
  • Consumer Reports places GMC 23rd in the current brand reliability table (2025 report; GMC among ranked brands).
  • CarComplaints lists 1,418 complaints for GMC Sierra 1500 (accessed 2026-10-02).
  • Average annual GMC repair cost is $744 (2026 rating page; GMC vehicles, 2010-2019 model years).

Contents

GMC reliability statistics by repair cost, frequency and severity

Proprietary repair-invoice-based rating; not a failure rate for all GMC vehicles.

Rank reflects RepairPal’s cost, frequency and severity model.

Includes scheduled maintenance and unscheduled repairs in RepairPal’s database.

RepairPal comparison benchmark, not a national spending estimate.

Excludes small routine visits such as oil changes.

RepairPal defines severe using a cost threshold tied to three times the all-model average annual repair cost.

Benchmark uses RepairPal’s severity definition.

Model-page rating is separate from the brand average.

GMC reliability scores across Sierra, Canyon and heavy-duty trucks

Proprietary longevity-based score.

Rank is within the models displayed on iSeeCars’ GMC page.

Category ranking is iSeeCars proprietary research.

RepairPal segment comparison.

RepairPal repair database and model coverage apply.

Unscheduled repairs and maintenance; routine oil changes excluded.

Urgency/severity is RepairPal’s model definition.

GMC SUV reliability statistics for Acadia, Yukon and Terrain

Proprietary longevity-based score.

Rank is within the models displayed on iSeeCars’ GMC page.

RepairPal model comparison rating.

RepairPal repair database and model coverage apply.

GMC long-term reliability and 250,000-mile survival data

Predicted from iSeeCars’ large vehicle-lifespan dataset; not a warranty or mechanical guarantee.

The study’s comparison multiplier; heavy-duty exclusions apply to the overall average where specified.

Predicted lifespan statistic, not a controlled durability test.

The study’s overall average excludes heavy-duty vehicles.

Study comparison; not a causal reliability explanation.

Study comparison; overall SUV average is 4.3%.

34,175 original owners; problems reported after three years, not mechanical failures only.

Study-level comparison, not a GMC-specific change.

Industry-wide software/connectivity problem, not GMC-specific.

Industry-wide composition, not GMC-specific.

Self-reported industry-wide result.

Consumer Reports GMC reliability rankings and model variation

Brand score averages model-level predictions where sufficient sample exists.

Rank depends on the brands meeting CR’s minimum model/data requirements.

Model score shown in CR’s brand comparison; not a repair probability.

Model score shown in CR’s brand comparison; redesigned-model data may be limited.

Brand-level score averages models from the 2016-2021 model years.

List is the models used for the published brand comparison, not all GMC models ever made.

GMC complaint counts and model-year reliability patterns

  • CarComplaints has 5,101 GMC complaints on file (accessed 2026-10-02; GMC vehicles). (GMC Overview)
  • CarComplaints lists 1,418 complaints for GMC Sierra 1500 (accessed 2026-10-02). (GMC Overview)
  • CarComplaints lists 892 complaints for GMC Acadia (accessed 2026-10-02). (GMC Overview)
  • CarComplaints lists 786 complaints for GMC Yukon (accessed 2026-10-02). (GMC Overview)
  • CarComplaints lists 692 complaints for GMC Terrain (accessed 2026-10-02). (GMC Overview)
  • CarComplaints lists 402 complaints for GMC Envoy (accessed 2026-10-02). (GMC Overview)
  • CarComplaints lists 242 complaints for GMC Canyon (accessed 2026-10-02). (GMC Overview)
  • CarComplaints identifies the 2015 GMC Sierra 1500 as one of the worst GMC model years in its overview (accessed 2026-10-02). (GMC Overview)
  • CarComplaints identifies the 2014 GMC Sierra 1500 as one of the worst GMC model years in its overview (accessed 2026-10-02). (GMC Overview)

Complaint count is user-submitted and is not exposure-adjusted or a failure rate.

User-submitted count; model sales and vehicle-years are not used as denominators.

User-submitted count; not a failure rate.

User-submitted count; not exposure-adjusted.

Site’s complaint-based designation; not a population failure rate.

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