Reliability & 5-year cost of ownership — 2018 GMC Terrain
NHTSA data on file today
The 2018 GMC Terrain has 5 NHTSA recall campaigns and 226 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
NCAP overall rating: 4.5 out of 5 stars, averaged across 4 NHTSA-tested trims.
Recall campaigns on file
- NHTSA #20V668000 Missing Bolts on Start/Stop Accumulator NHTSA notice
- NHTSA #18V576000 Insufficient Coating on Rear Brake Caliper Pistons NHTSA notice
- NHTSA #18V358000 Fuel Pump Flange Weld may Fracture NHTSA notice
- NHTSA #18V340000 Sensing Module may not Power Down Correctly NHTSA notice
- NHTSA #17V516000 Driveshaft Fracture and Separation NHTSA notice
Most-cited components in owner complaints
- Service Brakes 70 complaints
- Engine 55 complaints
- Power Train 42 complaints
- Electrical System 35 complaints
- Unknown or Other 35 complaints
- Air Bags 14 complaints
Of the 226 complaints on file, 14 report a crash and 1 a fire; across all 226 complaints, owners report 12 injuries (owner-reported, not verified by NHTSA).
Average
Estimated 5-year repair + maintenance cost: $6,000–$12,000AI estimate — not from NHTSA data
The 2018 GMC Terrain has an average reliability rating based on five recall campaigns and 226 complaints. Though certain issues like service brakes and engine problems are noted, the vehicle does not exhibit pervasive systemic failures. Limited complaint data suggests moderate reliability, with some recurring concerns that warrant caution.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| Service brakes | Unknown | $400–$800 | very common |
| Engine | Unknown | $1,500–$3,000 | common |
| Power train | Unknown | $1,200–$2,500 | common |
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
- Brake fluid replacement
- Tire rotations and balancing
- Transmission fluid changes
- Engine air filter replacement
- Spark plug replacement
- Coolant flush
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Brake performance issues
- Engine misfires
- Transmission slipping
- Unusual noises while driving
- Airbag warning light on
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2018 GMC Terrain at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.