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🚗 Upgrade your drive with GM’s trusted switch—because your ride deserves the best!
The GM Genuine Parts D6254E Turn Signal and Headlamp Dimmer Switch is an OE-quality replacement designed specifically for GM vehicles. It controls multiple essential functions including headlights, turn signals, cruise control, and windshield wipers. Featuring durable copper contacts and a 12V operating voltage, this panel-mount switch ensures reliable performance. Backed by GM’s rigorous standards and a 12-month/12,000-mile warranty, it offers a cost-effective, easy-to-install solution that keeps your vehicle running smoothly.








| ASIN | B004940ZSK |
| Actuator Type | Push Button |
| Best Sellers Rank | #630,179 in Automotive ( See Top 100 in Automotive ) #582 in Automotive Turn Signal Switches |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Circuit Type | parallel |
| Color | Multi |
| Compatible Devices | GM vehicles: HHR, Cobalt, 3.6L (G5, Sky, Solstice) from 2005-2011, 3.4L (Cobalt) from 2007-2009 |
| Compatible with Vehicle Type | GM vehicles |
| Connectivity Protocol | X-10 |
| Connector Type | Female |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Touch |
| Control Type | Touch |
| Controller Type | Push Button |
| Current Rating | 12 A |
| Customer Reviews | 4.8 out of 5 stars 1,903 Reviews |
| Global Trade Identification Number | 00707773696330 |
| Included Components | Dimmer Switch |
| International Protection Rating | IP00 |
| Item Dimensions | 8.7 x 3.1 x 2.5 inches |
| Item Type Name | Dimmer Switch |
| Item Weight | 4.32 ounces |
| Manufacturer | ACDelco |
| Model | D6254E |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 12 volts |
| Operation Mode | attribute not appiicable to product |
| Part Number | 20940099 |
| Specification Met | Oe |
| Switch Type | Dimmer Switch |
| UPC | 707773696330 |
| Unit Count | 1 Count |
| Warranty Description | 12 Months / 12,000 Miles (Parts Only) |
| Wattage | 144 watts |
J**2
Exact replacement - AC Delco is the GM standard part. Look no further than here!
This product was identical to the switch that I removed from my 2007 Cobalt. All numbers molded into the plastic components matched, electrical connections matched, and looked the same. It took me less than 10 minutes to install (three 9/32" socket head screws to remove and reinstall upon completion). Works like a charm and I saved at least $40 compared to buying from a dealer or parts store. Search YouTube for installation instructions or read mine right here: 1. using a small flat head screwdriver, pry the plastic horizontal trim pieces from both sides of the steering wheel back enough to get your fingers behind them...then pull them out. It takes some effort to pull them out, but they will come out. There are two metal clips holding those pieces of trim onto the dash. 2. using the 9/32" hex head socket on a screwdriver attachment, remove the three screws from the underside of the steering wheel column. 3. lower the tilt lever from the underside of the steering wheel and then pry the steering column apart. It is made up of a single top piece and a split (two piece) bottom. You can pry it apart with the screw driver or with your hands. Leave the top piece in place...just loose. 4. Using the small flat head screwdriver, pry the retaining clips that are on the existing turn signal switch (down on the top and up on the bottom) until you hear them click. 5. Slide the switch out of it's receptacle. You may have to wiggle it a little to clear the top dash trim. 6. Remove the two electrical connections from the switch (squeeze the smaller connection tab and pull it out, and use the screwdriver on the larger connection tab to pry it enough to clear the plastic tab). 7. Install the new switch. Make sure to pry the two retaining clips up after pushing the new switch back into the receptacle. Those clips will make a loud click when they are seated properly. Then reassemble the steering column cover and raise the tilt steering lever. Finally, snap the two horizontal trim pieces back into the dash on either side of the steering wheel. That's it! Installed, and you saved a ton of money...especially compared to having a service garage do the repair for $250 or more. -James
B**S
Just works.
This thing just works, as a replacement for the ailing GM one. I saved some money, by going this route, and I'm happy I did-- it seems to be identical in every way I could see, to the old GM one I removed. Same markings. Same tiny printing, and so on. I did have a bit of fuss and bother teasing it past all the other things in the way, but a bit of gentle persuasion with a flat screwdriver (like using a shoe horn on a stubborn shoe, not like a lever prying up a nail...) it snapped into place. I was expecting that, as removing the old, busted one, faced similar issues--not enough clearance to simply pull free from it's socket (once you release the tabs). I see why GM's manual outlined a much longer replacement process, as it suggested removing far more things in the dash that I did. You could do that-- or? You pry the old one out, because it's *broken*already* so nothing to lose. And using that knowledge, you carefully tease the new one back in. You know it's in, when it snaps in place, and the secure tabs lock down. A quick engine-running, driveway test confirms all lights working as expected. Later on, when it was dark, I tested the auto-on feature of the headlights, making sure the bright/dim function worked too. Good enough. Recommended.
A**R
OEM is best! Might need slight modification (read review), but still the best.
The quality of the materials is as good or better than the original part. The mechanical operation is much quieter and less clicky than the original. I had to file off some plastic where the mold seams were on the raised, inner most edges that face the steering column. The excess plastic was just enough to keep the part from being inserted far enough to allow the two locking clips to retract and latch onto it. Don't let this deter you from buying this particular part. I'm very happy with the purchase overall despite needing to slightly modify it. It was a snap to replace otherwise. It took maybe 15 minutes total. Replacing this part will fix the turn signal not staying engaged or not canceling when returning the steering wheel to center. I didn't see it mentioned elsewhere so I thought I'd mention it here. My vehicle is a 2007 Chevrolet Equinox, but this part fits many Chevy/GM models. This is a vastly better setup than older vehicles used which required pulling the steering wheel off to replace.
C**S
Highly recommend
Great replacement part, worked perfectly. Fairy easy to install.
B**M
I am mechanically incompetent, but even I was able to get this installed and works great!
Looks identical to one I was replacing. Watched a YouTube video on "how to install". YouTube makes it look so easy and claims it only takes 10 minutes. It took us about an hour and I also wound up breaking a small plastic piece in one of the steering wheel side covers (as a result, it did not reattach, so I had to get creative and use a piece of Gorilla tape). Also, this device was suppose to simply go right-in and click, it did not. It was a tiny, tiny bit longer and as a result it did not latch and snap as it was supposed to. We pushed it-in as much as we could, being cautious not to break anything else. I also made a slight modification and it is secure enough! After getting everything else reattached, my steering wheel rubs a little bit …. nothing ever works same when reattaching! (try to get someone crafty to help you!) But more importantly, my Car's left turn blinker now works perfect, as do all the other functions! I only took away one Star due to fact it did not 'click' when I pushed it all the way into the crevice (it was tiny, tiny bit longer….but not noticeable and not really a big deal if it does not "click" all the way in, it'll still be secure enough, and more importantly, works!)
D**O
Exceptional Price for OEM equipment. PERFECT !
To have to take your car to the dealership for anything is like watching your money being siphoned away without your knowledge. YouTube has videos about turn indicator malfunctions (when you make a turn and your turn indicator just stays on without automatically clicking off). This piece replaces the entire assembly and ya don't have to be a mechanic or technician to install it in your vehicle. It also controls headlight functions. The YouTube video actually explains how to fix the turn indicator problem without having to buy this module, HOWEVER, I like to have spare parts and for the price paid ~ it is OEM perfect. I will be looking into other items that Amazon carries for my car (2008 Solstice GXP - Pontiac). As you know, Pontiacs are no longer made by GM. This part fits several makes of GM vehicles. To have this repair done by a dealership is between $200 - $400. You can do it yourself, and pocket that cash for more goodies at Amazon or a night out at a nice restaurant. What have ya gotta lose?
S**P
Worth every penny, but replacing does require a little patience
I'm by no means mechanically inclined, but after watching a few tutorials online, I gathered enough courage to order this turn signal switch and try to replace my broken one that would not switch off automatically after making a turn. The switch itself was great and perfectly matched the one on my Pontiac G5 (same exact car as Chevy Cobalt). The install itself was a little trickier than all the videos led on; they conveniently Skip past the tricky part in every tutorial, which is removing a portion of the neighboring dash in order to get the switch out/in. Once that was figured out, the replacement was easy and best of all, I had a fully functional turn signal again! It took a little bit of patience but it only took a about a half hour to replace and was totally worth every penny.
R**T
Works like a charm.
This part is a direct fit. It was a good price for a genuine part. Not hard at all to remove the old part & re-install the new one. Took me about 30-40 min, and most of that time was studying and rechecking my steps so as not to mess anything up. I've had the part in about 2-1/2 to 3 weeks now. So far so good.
T**A
Better then spending an arm and a leg.
I was quoted 300$ for this part brand new from my dealership / auto shop garage. So i came to amazon who always has what I'm looking for and I Bought this, it was cheaper then 80$ at the time but It saved me tons of money, headaches and time.. My mechanic installed this and I haven't had a problem yet. It's been amazing and works well, made very well.
A**S
Excelente producto
Instalado fácilmente y funcionando perfecto en mi Equinox 2008. Es refacción original
J**F
Simple drop in replacement.
It was so easy to install this thing, I would never go to a repair shop to complete this repair. Simply remove a few bolts from the housing behind the steering wheel, pull the cowling off, unplug a single connecter and pull the old mechanism, drop in the new on, reconnect and replace everything. It's literally a ten minute job even if you're taking your time.
O**Z
Perfecto para Pontiac Torrent 2009
Embonó y funcionó perfectamente en una Pontiac Torrent 2009
R**A
Excelente Producto
equipo original, ensambla a la perfeccion y funciona muy bien y a un excelente precio, muy buena compra, completamente satisfecho
Trustpilot
5 days ago
1 month ago