Reliability & 5-year cost of ownership — 2018 GMC Sierra 3500
NHTSA data on file today
The 2018 GMC Sierra 3500 has 6 NHTSA recall campaigns and 14 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #24V756000 Roof Rail Air Bag Inflator End Cap May Detach NHTSA notice
- NHTSA #23V047000 Rear Fuel Tank Failure May Cause Engine Stall NHTSA notice
- NHTSA #21V496000 Short Circuit In Engine Block Heater Cable NHTSA notice
- NHTSA #19V328000 Engine Block Heater/Terminal Short-Circuit NHTSA notice
- NHTSA #19V088000 Front Fuel Tank May Overfill and Cause Fuel Leak NHTSA notice
- NHTSA #17V567000 Incorrect Seat Belt Torsion Bar/FMVSS 209 NHTSA notice
Most-cited components in owner complaints
- Service Brakes 6 complaints
- Steering 3 complaints
- Electrical System 2 complaints
- Exterior Lighting 2 complaints
- Electronic Stability Control (ESC) 1 complaint
- Engine 1 complaint
Average
Estimated 5-year repair + maintenance cost: $8,000–$15,000AI estimate — not from NHTSA data
The 2018 GMC Sierra 3500 generally performs well in terms of reliability. However, concerns over airbag and fuel system recalls, along with common brake-related complaints, suggest moderate maintenance requirements. While these issues are notable, they don't heavily impact the overall reliability outlook when addressed promptly.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| service brakes | 70,000–100,000 miles | $300–$700 | very common |
| fuel system | 60,000–90,000 miles | $400–$900 | common |
| steering system | 80,000–120,000 miles | $250–$600 | occasional |
| electrical system | 50,000–80,000 miles | $100–$500 | occasional |
| exterior lighting | 50,000–90,000 miles | $100–$300 | occasional |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil and filter changes
- tire rotations
- brake pad replacement
- engine coolant flush
- transmission fluid change
- fuel filter replacement
- timing belt inspection
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- unresponsive brakes
- steering wheel vibration
- engine stalling
- fuel smell
- dim or flickering headlights
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2018 GMC Sierra 3500 at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.