Key Fob Shell Case Replacement Fits for Chevy Silverado Colorado GMC Canyon Sierra 2014 2015 2016 2017 2018 2019 2020 2021 Keyless Entry Remote Control 4 Button Pad Outer Cover M3N-32337100

I might be able to give you some insight.The fob shell was easy to replace and took me maybe 10 minutes. I had no idea where to start.The sides of the key chain mount at the top has small tabs and this is where I started by inserting a small screwdriver and pulling forward which opens the battery cover (pic 1). Make sure to reuse the rubber o ring that surrounds the battery since the new case does not provide one.Next, start at the top at the same place and insert the screwdriver and pry an edge of the case slightly open (pic 3). Use only the tip of the screwdriver when inserting to prevent damaging the circuit board. It will require a little more leverage with the screwdriver but it will separate.Pic 4 shows inserting the screwdriver on the side pushing each tab in and working down and should open the shell case.Put the original circuit board in the new case and close the new case start from the bottom up.I put a new battery in and used the old rubber o ring into the battery cover.I hope this helps!

My original keys have been through some tough times lol the rubber bits were peeling off or breaking off completely - for reference I’ve had my truck for over 8 years.I figure it was time for replacement key fobs. I did some research and saw that I can get them remade at the dealer. That would have cost a pretty penny. And since I live in rural Alaska, it would have been almost impractical.I found I can replace the covers of my original fobs and lo and behold, Amazon came to the rescue. At first I was a little intimidated. Thinking I’d be losing all the little important bits. But it was pretty simple and straightforward. Don’t let the idea of doing it yourself scare you! And it was soo much cheaper.

Took me less than 2 minutes. Super easy to switch everything over. Same weight and feel as the original.Just be sure when you are taking the old fob apart, not to go gorilla on it. Finesse it open; I just used a pocket knife and wiggled it.Great product, and saved me countless dollars at the dealership.

The buttons are a little easy to push.

Very good quality. Got a little weight to it feels good in the hand. Easy and sturdy

Just as advertised

Very easy to put together if you watch video. Works and looks great

None of the reviews on this product provide useful information, so hopefully this will help some people decide.This is a CASE ONLY. You must have an existing key fob to buy this, and you must open up the factory one to switch over the microchip. This WILL NOT work by itself. Since you are switching over your currently working key fob microchip, you do not need to get it programmed at the dealer.If you need a completely new key fob, there are options on Amazon that come with a completely new key fob and programming tool for around $50. Those seem to be hit or miss, but it’s still way cheaper than the dealer.There’s not a lot of good videos out there on opening up the original key fob case (the only slightly hard part), and I don’t want to give any specific advice because I essentially destroyed my old case with a flat head screwdriver trying to get out the old microchip. I will say to pry open near the bottom where the key ring goes through. If you pry near the top by the lock/unlock buttons your screw driver will definitely be scraping up against the microchip.Now for this case: The original case has a rubbery front on it. It feels better, but wears out quickly (which is why so many people are buying these aftermarket cases). This one looks the same as the original from a distance, but it’s obviously cheaper quality once you feel it. I will say, the side chrome pieces are actually made out of metal instead of plastic, which was a nice surprise. The front of this case is a hard plastic, not rubber like the original. Who knows how long the front will last, I don’t think this key fob design has been around long enough for people to be able to test out the durability of it. However, for $10 a case, you really can’t go wrong. It’ll last long enough.I really don’t care that the front is plastic on this case. However, here is why I only give 3 stars. The case is just a millimeter or two, too small for the microchip. You can feel that the case doesn’t quite close all the way around the microchip, and when you snap everything together, it’s a tight fit. It doesn’t feel tight enough to damage the microchip, but just slightly too tight (as in front to back/ thickness of the case).Because of the tight fit, the buttons are extremely sensitive. You WILL get accidental button pushes in your pocket. Just note that that lock button seems to be the easiest to press. I don’t care if my vehicle locks again; however, if the unlock button were any easier to push, I would send it back. I would say these buttons are about 3X more sensitive than in the original factory case. Simply lightly placing your finger on the lock button will actuate the button. On my first trip to the store with the new key fob case, my truck locked on me again when putting the keys into my pocket. Since the horn honks when locking, I can see this becoming annoying over time. Like I said, since it’s the lock button and not the unlock button that is the most sensitive, it’s not as much as a safety issue. I wouldn’t want to chance accidentally unlocking my vehicle when putting the keys into my pocket.All that being said, I will still keep the key fob case. The dealer will charge $100 for a new key fob, and another $50 to program it. I went to the dealer, and this is what they tried to charge me. I’ll stick to $10 on Amazon for a new case, even with the poorer quality and performance. The extra cost simply isn’t worth a new one from the dealer.One more thing to note, I looked at pretty much all the cases available on Amazon for this key fob. Every one seemed to have something negative about it. Either too big, too small, or even poorer quality materials. This one seems to be overall OK on everything, and a solid 3/5 star product.