How long are the front blades?
Driver: 60 cm (23.6 in), GM 23368186. Passenger: 45.0 cm (17.7 in), GM 23353587. Rear: 30.0 cm (11.8 in), GM 84215609.
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In-depth guide
2018 GMC Terrain
2018 Terrain wiper lengths and GM part numbers are the maintenance parts table. A bare arm can chip the glass.
| Item | Figure |
|---|---|
| Driver | 60 cm (23.6 in). GM 23368186. |
| Passenger | 45.0 cm (17.7 in). GM 23353587. |
| Rear | 30.0 cm (11.8 in). GM 84215609. |
Source: owner's manual / last verified 2026-10-16 (2018 GMC Terrain owner's manual, wiper blade replacement (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2018 GMC Terrain owner's manual, wiper blade replacement (opens in a new tab), General Motors, published 2017-09-15, read 2026-10-16.
Clean rag
For the glass and the arm. No special tool is named in the replacement steps that were read.
| Item | Figure | Where it comes from |
|---|---|---|
| Driver | 60 cm (23.6 in). GM 23368186. | Maintenance replacement parts |
| Passenger | 45.0 cm (17.7 in). GM 23353587. | Maintenance replacement parts |
| Rear | 30.0 cm (11.8 in). GM 84215609. | Maintenance replacement parts |
Driver: 60 cm (23.6 in), GM 23368186. Passenger: 45.0 cm (17.7 in), GM 23353587. Rear: 30.0 cm (11.8 in), GM 84215609.
The Terrain book has a front wiper section and a separate rear section. The numbered lines are split across the page, so this sheet does not restitch them. Use the figures in Front Wiper Blade Replacement and Rear Wiper Blade Replacement. Lengths and part numbers are below.
The book warns that a bare arm can damage the windshield.
2018 GMC Terrain/Terrain Denali Owner's Manual, document Mexico-10664916, CRC 9/15/17. Lengths are the maintenance replacement parts table.
Washer fluid is automotive washer fluid that meets regional freeze protection. The book says not to use engine coolant in the washer.
Outbound links only. BaySheet does not sell parts. Confirm fitment on the retailer page. Amazon links are searches for a real part name plus this vehicle. Tool rows do not get a product search. The search is not a part number.
Part
GM 23368186
Driver wiper blade, 60 cm (23.6 in).
2018 Terrain wiper parts (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Part
GM 23353587
Passenger wiper blade, 45.0 cm (17.7 in).
2018 Terrain wiper parts (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Part
GM 84215609
Rear wiper blade, 30.0 cm (11.8 in).
2018 Terrain wiper parts (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Tool
Clean rag
For the glass and the arm. No special tool is named in the replacement steps that were read.
Driver: 60 cm (23.6 in), GM 23368186. Passenger: 45.0 cm (17.7 in), GM 23353587. Rear: 30.0 cm (11.8 in), GM 84215609.
The book says it can damage the windshield.
The maintenance checklist is on the site now. The email list is not sending yet, so this box will not store an address.
These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.
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