Spec Sizes

2017 GMC Terrain Tire Size

Confirmed OEM tire sizes for this model year. Multiple sizes may apply depending on trim and wheel package — all catalog options are listed.

  • Option235/55R18
  • Option235/55R19
  • Option235/60R17
235/55R18Section width 235 mmSidewall ~129 mm(55% of width)Rim 18"235/55R18235 = width55 = aspectR18 = rim
OEM code 235/55R18: section 235 mm · aspect 55% · rim 18"

All confirmed configurations

SizePositionWidthAspectRimLoadSpeed
235/55R18 (run-flat)Front / all2355518"97W
235/55R19 (run-flat)Front / all2355519"95W
235/60R17 (run-flat)Front / all2356017"100H