GMC Terrain Wiper Size by Year
The 2025-2027 GMC Terrain takes a 24-inch driver blade and a 18-inch passenger blade. 2018-2024 models take a 24-inch driver blade, a 18-inch passenger blade and a 12-inch rear blade, and earlier years are in the table below.
Wiper sizes by model year
| Model years | Driver | Passenger | Rear | Buy |
|---|---|---|---|---|
| 2025-2027 | 24" | 18" | None | Shop this pair |
| 2018-2024 | 24" | 18" | 12" | Shop this pair |
| 2010-2017 | 24" | 17" | 13" | Shop this pair |
The two front blades are usually different lengths, so buy them as a matched pair for your year rather than two of one size. Shop links go to Amazon, and we may earn a commission at no extra cost to you. Open your exact year below for connector type and sources.
Every Terrain year
Sources. The wiper size for 17 of 18 model years is checked against a cited source, most often WiperSized, GMC Terrain wipers (verified) and Car and Driver. Each year page lists its own sources.
Last verified 2026-10-08. Maintained by Matan B., who runs GarageDex. How we verify.