YearToAvoid

2020 GMC Terrain Fuel System Problems

NHTSA lists 31 Fuel System complaints for the 2020 GMC Terrain, 16% of its 196 total complaints for the year. No related recalls are on file. Median mileage at failure is 45,175 miles, with owners reporting stalling, failed restarts, and fuel pump/sensor replacements.

Fuel System complaints
31
16% of 196
Crashes reported
0
Fires reported
0
Injuries reported
0
Median mileage
45,175 mi
Related recalls
0

Typical fuel system symptoms owners report

  • Vehicle fails to restart after refueling, showing a 'Battery Low - Start Vehicle' message, later traced to a faulty fuel pump or fuel sensor module.
  • Fuel gauge shows full even though the tank only accepts a small amount of gas, prompting a fuel tank replacement.
  • Engine stalls or cuts off unexpectedly while driving at low speed or through an intersection, sometimes requiring repeated fuel pump module replacements.
  • Vehicle hesitates or fails to accelerate properly from a stop, crawling forward before suddenly surging to a higher speed.
  • Intermittent stalling when accelerating after stopping, with dealers unable to find a diagnostic code despite repeated visits.

When 2020 GMC Terrain fuel system complaints were filed

First complaint Nov 18, 2020, latest Sep 2, 2026.

2020 GMC Terrain fuel system complaints: complaints filed per month3Nov 2020Feb 2023Aug 2023Mar 2025Sep 2025Mar 2026Aug 2026
31 complaints filed with NHTSA from Nov 2020 to Sep 2026; peak Aug 2026 (3).

Fuel System recalls for the 2020 GMC Terrain

No safety recalls on record for this model year.

Fuel System complaints by Terrain model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 201016 (6%)
  2. 201148 (12%)
  3. 201229 (8%)
  4. 201323 (6%)
  5. 201415 (5%)
  6. 201517 (6%)
  7. 20163 (2%)
  8. 20174 (3%)
  9. 201815 (7%)
  10. 20194 (2%)
  11. 202031 (16%)
  12. 20214 (11%)
  13. 202237 (62%)
  14. 202321 (54%)
  15. 202410 (20%)
  16. 20250 (0%)

Frequently asked questions

How common are fuel system complaints on the 2020 GMC Terrain?
NHTSA lists 31 Fuel System complaints for the 2020 Terrain, which is 16% of all 196 complaints filed for that model year.
Is there a recall for the 2020 GMC Terrain fuel system?
No related recalls are listed in the NHTSA data for this problem area on the 2020 Terrain.
At what mileage do fuel system problems typically show up?
The median mileage at failure reported to NHTSA is 45,175 miles.
What kind of fuel system failures do owners report?
Owners describe stalling, failure to restart after refueling, faulty fuel pumps and fuel sensor modules, and gas gauge readings that do not match actual fuel levels.
Were there any crashes, fires, or injuries linked to these complaints?
NHTSA data shows 0 crashes, 0 fires, and 0 injuries among these 31 Fuel System complaints.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.