2018 GMC Sierra HD Report
Known issues, recalls, running costs, and what to check before you buy.
Overall Score
Key Takeaways
- Exceptional reliability with a 9.5 LLM score and 9.9 public score.
- Zero recalls and zero consumer complaints reported.
- No specific safety ratings available from NHTSA.
- Fuel economy data is not applicable for this heavy-duty model.
2018 GMC Sierra HD
Critical Failure Risk
Exceptional reliability with a 9.5 LLM score and 9.9 public score.
Early detection can reduce the odds of major repair bills.
Safety & Bulletins
Owner Complaints
No primary complaint themes found.
Performance & Efficiency
Reliability
Practicality
Who This Car Is For
Best for
Buyers seeking a rugged, dependable truck for heavy-duty tasks.
+3 more buyer-fit notes in the full report
Avoid if
Drivers prioritizing advanced safety feature ratings over mechanical reliability.
+2 more buyer-fit warnings in the full report
2018 GMC Sierra HD Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 GMC Sierra HD.
Limited reliability records are available for this model year.
Vehicle Specs
- Body Style
- Pickup
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See the full 2018 GMC Sierra HD buyer report before you decide
Most Common Issues
No complaint hotspot data available yet.
See all common issues in the maintenance guideFirst Service Interval
- Oil Change (Synthetic Blend) (Parts: 5W-30 Synthetic Blend Oil, Oil Filter) - Tire Rotation - Inspect Wiper Blades
Est. shop cost: $100 - $150
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FAQ
Is the 2018 GMC Sierra HD reliable?
The CarFocal Reliability Score for the 2018 GMC Sierra HD is 9.6/10. Reliability score is 9.6/10. NHTSA recalls: 0. Owner complaints: 0.
How practical is the 2018 GMC Sierra HD for daily use?
Practicality score is 5.0/10.
What is the overall score for the 2018 GMC Sierra HD?
The CarFocal Overall Score for the 2018 GMC Sierra HD is 6.9/10. Overall score is 6.9/10 (Good). Confidence 41%. Maintenance 9.3/10. Practicality 5.0/10.
What does it cost to own and maintain a 2018 GMC Sierra HD?
Based on Carfocal's data, First listed service: - Oil Change (Synthetic Blend) (Parts: 5W-30 Synthetic Blend Oil, Oil Filter) - Tire Rotation - Inspect Wiper Blades at 5,000 miles. Estimated first-year maintenance: $200 - $350.
What driver assistance and safety features are available on the 2018 GMC Sierra HD?
4 standard and 2 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Tire Pressure Monitoring System.
What body style is the 2018 GMC Sierra HD?
According to CarFocal's specs for the 2018 GMC Sierra HD, body style is pickup.
Should buyers consider alternatives to the 2018 GMC Sierra HD?
Alternative listed in this guide: 2018 Ram 2500.