How to Replace a Rear Door Window Regulator on a 2015-2021 GMC Canyon (Body: Extended Cab Pickup)
Step-by-step door panel removal, glass support tips, parts list, tools needed, and reassembly checks
How to Replace a Rear Door Window Regulator on a 2015-2021 GMC Canyon (Body: Extended Cab Pickup)
Step-by-step door panel removal, glass support tips, parts list, tools needed, and reassembly checks for 2015, 2016, 2017, 2018, 2019, 2020, 2021
đź”§ Canyon - Rear Window Regulator Replacement
On your Canyon, “rear window regulator” can mean two different things: the rear door window regulators (left/right) or the rear sliding back glass mechanism (if equipped). The removal steps and parts are very different, so I need 2 quick details to keep this accurate.
Difficulty Level: Intermediate | Estimated Time: 1.5-3.0 hours (per door)
⚠️ Safety & Precautions
- ⚠️ Keep fingers clear of the window tracks and scissor/cable mechanism while powered.
- ⚠️ Support the glass with tape or a helper before unbolting it from the regulator.
- ⚠️ Disconnecting the battery is recommended before unplugging door wiring connectors.
- ⚠️ Use jack stands if you raise the truck for access (usually not needed).
đź”§ Required Tools
You'll need the following tools for this repair:
- TBD after confirming: rear door regulator vs rear sliding back glass
- TBD after confirming: left, right, or both sides
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- TBD: Rear door window regulator assembly (left or right) - Qty: 1
- TBD: Rear door window motor (if not included with regulator) - Qty: 1
- TBD: Door trim panel clips (recommended) - Qty: 1 set
đź“‹ Before You Begin
- Park on level ground, key off, and keep the window in the fully up position if possible.
- Disconnect the negative battery cable if you’ll be unplugging door connectors.
- Confirm which “rear window” we’re repairing so I give the correct procedure.
- Question 1: Are we talking about the rear door window (rolls up/down in the rear door) or the rear sliding back glass?
- Question 2: Which one failed: left rear, right rear, or both?
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm the exact rear window type and side
- Reply with: rear door window or rear sliding back glass, and left/right/both.
Step 2: I’ll provide the exact Canyon procedure
- Once confirmed, I’ll give the full trim-removal, glass-support, regulator swap, and reassembly steps with the correct fastener types and torque specs.
âś… After Repair
- Verify the window moves smoothly up/down without binding or popping.
- Confirm auto-up/auto-down (if equipped) works and the glass seals evenly at the top.
- Check for water leaks after reassembly (light hose test around the outer belt molding).
đź’° DIY vs Shop Cost
Shop Cost: $350-$750 (parts + labor, per door)
DIY Cost: $120-$350 (parts only, per door)
You Save: $230-$400 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-3.0 hours.
🎯 Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.
Guide for Window Motor and Regulator Assembly replace for these GMC vehicles
| Year Make Model | Sub Model | Engine | Body Style |
|---|---|---|---|
| 2021 GMC Canyon | - | - | Crew Cab Pickup |
| 2020 GMC Canyon | - | - | Crew Cab Pickup |
| 2019 GMC Canyon | - | - | Crew Cab Pickup |
| 2018 GMC Canyon | - | - | Crew Cab Pickup |
| 2017 GMC Canyon | - | - | Crew Cab Pickup |
| 2016 GMC Canyon | - | - | Crew Cab Pickup |
| 2015 GMC Canyon | - | - | Crew Cab Pickup |
















