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NHTSA Federal Consumer Defect Registry

2017 GMC Terrain Owner Complaints (133)

Analysis of 133 verified consumer complaints submitted to the National Highway Traffic Safety Administration (NHTSA). Filtered and clustered by vehicle subsystem to identify genuine recurring mechanical and electrical flaws.

Total Complaints
133
Defect Clusters
6 Categories
Avg Failure Range
80k mi
Est. Repair Cost
$950 – $3,200
Defects & ProblemsSafety Recalls1Owner Complaints133
Switch Terrain Model Year Complaints
202512 reports202448 reports202337 reports202280 reports202134 reports2020190 reports2019179 reports2018216 reports2017133 reports2016152 reports2015315 reports2014301 reports
NHTSA Defect Subsystem Breakdown

2017 Terrain Failure Distribution by Vehicle Subsystem

100% Normalized Telemetry
38%26%16%12%
Engine & Powertrain:38%
Electrical & Sensors:26%
Steering & Suspension:16%
Brakes & ABS Hydraulics:12%
Airbags & Body Structure:8%
Clustered Telemetry

Top Defect Complaint Groups (6)

Ranked by NHTSA Frequency
ENGINE & COOLING90 Verified Complaints

Engine Stalling, Oil Consumption & Cooling Defect Reports

Critical Severity

Reported Symptoms: Engine sudden stall / hesitation while driving, Abnormal oil burning / consumption, Check Engine Light (MIL) flashing, Engine overheating / coolant loss

Median Failure Mileage79,500 milesIQR: 58,750 – 88,500 mi
Estimated Repair Cost$950 – $3,200 (Source: MazicBay Repair Intelligence Model)
Associated Fault Codes
TRANSMISSION & DRIVETRAIN30 Verified Complaints

Transmission Hesitation, Hard Shifting & Slipping Reports

Medium Severity

Reported Symptoms: Hard gear shifts / delayed engagement into Drive/Reverse, Transmission shudder / jerking under acceleration, Transmission slipping between gears

Median Failure Mileage63,000 milesIQR: 55,126 – 78,250 mi
Estimated Repair Cost$1,400 – $3,800 (Source: MazicBay Repair Intelligence Model)
Associated Fault Codes
ELECTRICAL SYSTEM & BATTERY16 Verified Complaints

Electrical Parasitic Drain, Infotainment & Harness Reports

Critical Severity

Reported Symptoms: Unexplained battery drain after sitting overnight, Infotainment display / instrument cluster blackouts, Accessory malfunction / alternator fault warnings

Median Failure Mileage88,000 milesIQR: 88,000 – 88,000 mi
Estimated Repair Cost$280 – $850 (Source: MazicBay Repair Intelligence Model)
Associated Fault Codes
AIRBAGS & SAFETY RESTRAINTS16 Verified Complaints

Airbag Occupant Detection & Inflator Defect Reports

Critical Severity

Reported Symptoms: SRS Airbag warning lamp illuminated, Passenger occupant classification sensor failure, Seat belt retractor lockup

Median Failure Mileage55,000 milesIQR: 35,000 – 75,000 mi
Estimated Repair Cost$400 – $1,200 (Source: MazicBay Repair Intelligence Model)
Associated Fault Codes
BRAKING SYSTEM & ABS6 Verified Complaints

Service Brakes, ABS Actuator & Master Cylinder Reports

Critical Severity

Reported Symptoms: Spongy or hard brake pedal travel, ABS / Brake warning light illuminated, Extended stopping distance / pedal vibration

Median Failure Mileage46,000 milesIQR: 46,000 – 46,000 mi
Estimated Repair Cost$350 – $1,100 (Source: MazicBay Repair Intelligence Model)
Associated Fault Codes
STEERING & SUSPENSION5 Verified Complaints

Electric Power Steering Assist & Suspension Noise Reports

Critical Severity

Reported Symptoms: Sudden loss of electric power steering assist, Steering wheel pull or highway wander, Clunking / knocking noise over bumps

Median Failure Mileage55,000 milesIQR: 35,000 – 75,000 mi
Estimated Repair Cost$450 – $1,400 (Source: MazicBay Repair Intelligence Model)
Associated Fault Codes
Full Reliability Report2017 Terrain Common ProblemsFederal Safety Recalls2017 Terrain Recalls (1)All Generation YearsTerrain Multi-Year Hub