Front wiper blades are typically 26 inches on the driver’s side and 20 inches on the passenger’s side, with an 11-inch blade for the rear window. Sizes can vary by year and trim, so check your owner's manual or the blade packaging to be sure.
Front Wiper Blade Sizes
Front blades are the primary replacement for weather protection on the GMC Terrain. The standard lengths cover most model years, but there are occasional variations depending on year and trim.
- Driver-side blade: 26 inches
- Passenger-side blade: 20 inches
Note: Some model years and trims may use a 22-inch passenger blade or other variations. Always verify against your vehicle's specifics.
Rear Wiper Blade Size
The rear window on the GMC Terrain typically uses a single, shorter blade.
- Rear blade: 11 inches
Always confirm the exact rear blade length for your year. If you replaced only the front, you may still need to replace the rear blade to maintain visibility.
How to Confirm Your Exact Sizes
Use these practical steps to confirm the exact blade sizes for your Terrain:
- Check your owner's manual for the recommended blade lengths.
- Inspect the current blades or their packaging for length measurements and part numbers.
- If needed, contact a GMC dealership or use a parts catalog with your VIN to pull the exact sizes.
Following these steps ensures you purchase the correct sizes and avoid fit issues.
Tips for Replacement
When shopping, decide between OEM (GMC/GM) blades and reputable aftermarket options. Ensure the blade adapters match your wiper arm type (hook, pin, or bayonet). Consider bundled winter blades if you live in a cold climate.
Summary
For most GMC Terrain models, plan on front driver-side blades about 26 inches and front passenger-side blades about 20 inches, with an 11-inch rear blade. Always verify by consulting your manual or measuring the installed blades, as some years may differ slightly. With the right sizes, you’ll maintain optimal visibility in all weather conditions.