✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.
✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.
✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.
✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.
✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!
🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!
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Vehicle Fitment Guide
This part fits the following vehicles:
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Chevrolet
Trailblazer2021-2025(tapclick to expand)(tapclick to hide)
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SubmodelSUB- MODEL
Body Style
Years
Engine
Attributes
ACTIV
SUV
2021 - 2025
L3 1.3L Turbo
AWD/FWD | Automatic & Automatic CVT
L
SUV
2021 - 2022
L3 1.2L Turbo
FWD | Automatic CVT
LS
SUV
2021 - 2024
L3 1.2L Turbo
AWD/FWD | Automatic & Automatic CVT
LS
SUV
2021 - 2025
L3 1.3L Turbo
AWD/FWD | Automatic & Automatic CVT
LT
SUV
2021 - 2024
L3 1.2L Turbo
AWD/FWD | Automatic & Automatic CVT
LT
SUV
2021 - 2025
L3 1.3L Turbo
AWD/FWD | Automatic & Automatic CVT
RS
SUV
2021 - 2025
L3 1.3L Turbo
AWD/FWD | Automatic & Automatic CVT
LS
SUV
2025
L3 1.2L FLEX Turbo
AWD/FWD | Automatic & Automatic CVT
LT
SUV
2025
L3 1.2L FLEX Turbo
AWD/FWD | Automatic & Automatic CVT
2023
⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.
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Policies
Shipping & Handling
Standard shipping: 3-7 business days via UPS Ground
Parts are carefully packaged to prevent damage during transit
Returns (30 Days)
We accept returns within 30 days of delivery for this part.
Defective parts: We will replace the part or issue a refund at our discretion
Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
Return shipping: We cover return shipping as part of our 100% money-back guarantee
Parts must be returned in original packaging and unmodified condition
Poorly packaged returns that arrive damaged will not be credited
6-Month Warranty
All used parts include a 6-month warranty from the date of purchase.
If your part fails within 6 months, we will send a replacement
Refunds are only issued if we cannot provide a suitable replacement
Warranty covers defects — not installation errors, misuse, or damage after installation
Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.
Damaged in Shipping?
If your part arrives damaged:
Stop immediately — do not install the part
Keep all original packaging and boxes
Take clear photos of the damage and packaging
Contact us within 48 hours of delivery
We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.
Order Cancellation
Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.
Symptoms & Diagnosis
Warning signs the Master Window Switch is failing:
Windows not going up or down
Windows only working sometimes
Only some windows working
The switch feels loose or broken
The window moves slowly or unevenly
Other electrical issues, like door locks not working
How to test if this part is the problem vs other components:
Check the fuses first. A blown fuse can cause window problems.
Try the window switch on each door. If only one window doesn't work, the problem might be the window motor or the switch on that door.
If none of the windows work from the driver's side switch, but they work from their own door switches, this master switch is likely the problem.
Use a multimeter to check if the switch is getting power. If it's not getting power, there's a wiring issue.
If it's getting power, check if the switch is sending power to the window motors when you press it. If not, the switch is bad.
Common failure causes for this part:
Spilled liquids getting into the switch
Normal wear and tear from use
Dust and dirt buildup inside the switch
Electrical shorts or surges
Physical damage to the switch
Buyer's Checklist
What to look for when buying this part:
Make sure the switch has the right number of buttons for your vehicle's options.
Check the switch's appearance for any cracks or damage.
If buying a used switch, ask if it was tested and working before being removed.
Quality indicators for the available options:
Used OEM: Look for switches that are clean and free of damage. Ask about the testing process.
New Aftermarket: Check reviews and the brand's reputation. Look for switches that meet or exceed OE specifications.
What's typically included with the part:
The master window switch assembly.
Sometimes, instructions or diagrams (especially with new aftermarket parts).
Installation Overview
Difficulty level and estimated time:
Difficulty: Easy to Medium
Estimated Time: 15-45 minutes
Special tools needed (if any):
Flathead screwdriver or plastic trim removal tool
Socket set (possibly)
Critical steps and tips:
Disconnect the negative battery cable. This is important for safety.
Remove the door panel trim around the switch. Use a trim removal tool to avoid damaging the plastic.
Disconnect the electrical connector from the old switch.
Install the new switch and reconnect the electrical connector.
Reinstall the door panel trim.
Reconnect the negative battery cable.
Whether DIY is recommended or professional installation is better:
DIY is recommended for most people. It's a straightforward job. If you're not comfortable working with electrical components, professional installation is a good idea.
Buying Options
Compare: Used OEM, New Aftermarket
Used OEM: Best value - genuine factory parts, tested and inspected, at significantly lower prices. These are original parts made by the vehicle manufacturer. They've been removed from used vehicles and checked to ensure they work.
New Aftermarket: Brand new third-party parts built to OE specs. These are new parts made by companies other than the original vehicle manufacturer. They are designed to fit and function like the original part.
Related Parts
Parts commonly replaced or checked at the same time:
Window motor
Window regulator
Door lock actuator
Wiring harness
Why replacing related parts prevents repeat failures:
A failing window motor or regulator can put extra strain on the switch, causing it to fail prematurely. Replacing these parts at the same time can prevent future problems. Damaged wiring can also cause issues with the switch.
Typical Lifespan
How long this part normally lasts:
5-10 years is typical.
Factors that affect longevity:
Frequency of use
Exposure to extreme temperatures
Spilled liquids
Quality of the part
Price Ranges
Budget vs mid-range vs premium options:
Used OEM: $30 - $75
New Aftermarket: $40 - $120
Labor cost considerations if applicable:
Labor costs can range from $50 - $150, depending on the shop and your location.
Total job cost estimates:
DIY (Used OEM): $30 - $75
DIY (New Aftermarket): $40 - $120
Professional Installation (Used OEM): $80 - $225
Professional Installation (New Aftermarket): $90 - $270
Vehicle-Specific Notes
Known issues for this vehicle's system related to this part:
Some models have issues with water leaking into the door, which can damage the switch.
Certain models may have issues with the wiring harness connector becoming loose or corroded.
Any TSBs or common complaints:
Check online forums and resources for any Technical Service Bulletins (TSBs) or common complaints related to window switch issues on your specific vehicle model and year.
Verification After Install
How to confirm proper operation:
Test each window to make sure it goes up and down smoothly.
Check the auto-up and auto-down functions (if equipped).
Make sure the window stops when you release the switch.
What to look/listen for to verify it's working correctly:
Listen for smooth motor operation.
Watch for even window movement.
Ensure all windows respond to the switch.
FAQ
Q: Will this switch work on the passenger side?
A: No, this switch is specifically designed for the driver's side (left side) of the vehicle.
Q: Do I need to program the switch after installing it?
A: No, this switch does not require any programming after installation. It should work immediately after being properly connected.
Q: How can I tell if the switch is the problem and not the window motor?
A: If none of the windows work from the driver's side switch, but they work from their individual door switches, then the master window switch is likely the problem.
Q: What if the new switch doesn't fix the problem?
A: If the new switch doesn't solve the issue, the problem could be with the window motor, regulator, wiring, or a fuse. Further diagnosis may be needed.
Q: Does this switch come with a warranty?
A: Warranty coverage depends on whether you purchase a used OEM or new aftermarket switch. Check the seller's warranty policy before buying.
