"How reliable is the 2017 Gmc Terrain?"

"Based on 178 NHTSA complaints, the 2017 Gmc Terrain has a median complaint mileage of 46580 miles. The most common issue is ENGINE."

"What are common problems with the 2017 Gmc Terrain?"

"The most frequently reported component in NHTSA complaints for the 2017 Gmc Terrain is ENGINE, accounting for a significant portion of the 178 total complaints filed."

2017 Gmc Terrain: Reliability Data

Source: NHTSA — 178 complaints

178

Total Complaints

46,580mi

Median Mileage

ENGINE

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

31,750 25th Percentile

46,580 Median Mileage

63,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE

POWER TRAIN

UNKNOWN OR OTHER

AIR BAGS

ELECTRICAL SYSTEM

EXTERIOR LIGHTING

STRUCTURE:BODY

SEAT BELTS

FUEL/PROPULSION SYSTEM

VISIBILITY/WIPER

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"OUR NEW TERRAIN HAS "VEHICLE IN FRONT" VISUAL WARNING SYSTEMS. WE WERE FOLLOWING A TANKER TYPE SEMI ON THE INTERSTATE AND PULLED ALL THE WAY UP BEHIND THE TANKER SEMI (WITHIN 25 FT) AND THE VEHICLE IN FRONT LIGHT NEVER CAME ON. WE TESTED THIS ON ALL TYPES OF CARS AND TRUCKS AS WELL AS STANDARD BOX..."

"SIDE BLIND SPOT ALERT COMES ON AND OFF WHEN RAINING OR SNOWING WITH NOTHING THERE, THEY SHOULD TELL YOU THIS WILL HAPPEN BEFORE YOU PAY EXTRA FOR THIS PACKAGE, HOW DO YOU KNOW IF IT WORKS OR NOT WHEN DRIVING DOWN HIGHWAY"

"BLIND SIDE ALERT ACTIVATES WHEN IT IS RAINING AND THERE ARE NO CARS NEARBY. THIS ONLY OCCURS WHEN RAINING. NO CODES ARE THROWN SO DEALER SERVICE WON'T TROUBLESHOOT. THIS CAN ONLY BE REPRODUCED ON A HIGHWAY OR PARKWAY, WHEN IT IS RAINING AND NO OTHER CARS ARE NEARBY. CANNOT BE REPRODUCED ON REGULAR S..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28