★★★★★
January 14, 2026
Fan control switch replacement
Easy to find and order on your website, exact replacement for original part, great video tutor. Thanks!
Replaces
About TRQ:
TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Returns: Parts with electrical components cannot be returned once installed.
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WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
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Hi, I'm Mike from 1AAuto. We've been selling auto parts for over 30 years! We're dedicated to delivering quality auto parts, expert customer service, and fast and free shipping, all backed by our 100% satisfaction guarantee. So visit us at 1AAuto.com, your trusted source for quality auto parts.
In this video, we're going to be working with our 1996 GMC Sierra K1500. We're going to show you how to remove and replace your vehicle's fan speed control switch.
If you like this video, please click subscribe. We have a ton more information on this truck, as well as many other makes and models. If you need this part for your truck, you can follow the link down in the description over to 1AAuto.com.
Here are the items you'll need for this repair: 5.5mm and 7mm socket, ratchet, and socket extensions, flat blade screwdriver
Tilt your steering column to the lowest position. Turn the key to the run position. Our battery is disconnected. This will work either way. Put your foot on the brake and put the gear selector in the lowest position. You can then simply put your fingers behind the dash panel and carefully go around. Open the cup holder a little to get that clip out, and pop all the clips out. You got to scooch it forward and then pop that rear panel over the instrument cluster up, so you can move it around a little. We'll then disconnect all of the electrical connectors behind our dash.
Now this connector is a little tricky. You have this little “T” here on top of the push button. That needs to be depressed to just the right level to sneak it under. It's almost easier to use a flat blade screwdriver, pry it down and back. You can then push down and release the connector from the four-wheel drive selector buttons. Flip the panel out and release the headlight switch connector as well. You can now remove the entire dash panel from the vehicle.
The HVAC control unit simply pops forward and out. Disconnect the connectors. Simply pry up the tab on each side of this connector and then slide that out. Now this HVAC control unit can be replaced as an entire assembly. The only issue you're having is with the heater fan controls. You can simply use a five and a half millimeter socket and a ratchet to remove this bolt here. Simply pry back all of the little hooks securing the switch and slide it out.
Here we have our old heater fan control switch that we remove from our vehicle and our new part from 1AAuto.com.
As you could see, these parts are exactly the same with the same connectors, same mounting pins, and the same pin for the dial on the front. If your heater fan control isn't functioning like it should, this new part from 1A Auto can save you from replacing the entire switch panel assembly and fix you up right. Snap the new switch into place. Reinstall the retainer on the back and tighten up your five and a half millimeter screw with the socket and ratchet.
Reinstall the electrical connections on the heater control panel. Line it up and lock it back into place. Reconnect the electrical connectors. Don't forget to do the headlight switch on the other side. Line the dash back up and pop all of the retainers back into place. Remember to pull the cup holder out because of that lip, and you're good to go.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
HCA41496
Easy to find and order on your website, exact replacement for original part, great video tutor. Thanks!
The switch works okay however it did not fix my problem. I also replaced the the fan motor. For some reason the fan only works on the HIGH setting.
Good fit
Front panel is hardest part was able to pull forward never had to unhook any wires for t right in exact replacement. Works perfectly. Would recommend to others.
worked good
Something in my system kept burning these things up but they worked well while in!
Product works very well, I would recommend it.
Perfect fit for my 2000 Yukon Denali...easy to replace and have all fan functions again.
It works, but it doesn't always change speeds and you have to be kind of aggressive with it. Seems to be cheaply made.
Product performed as advertised.
This part will not fit your vehicle, but we may have a part that is listed to fit. Please enter your vehicle's year make and model in the search bar at the top of the page. This will display parts guaranteed to fit your vehicle. Just be sure to verify all of the information shown in the Vehicle Fit tab before ordering.
