CTS 12.3″ Cluster Upgrade / Retrofit

(7 customer reviews)




IMPORTANT NOTE: We realize there is a lot to read here but it’s in everyone’s best interest to read all of the information presented here. This is admittedly a bit of a complicated product/service with many facets depending on your vehicle build, mods, warranty status etc. We have tried to make this as comprehensive and easy to understand as humanly possible but if we missed something please drop us a line and ask!

This exclusive ship in service allows for factory-esque operation of a 12.3″ CTS LCD Cluster (that you can supply or choose to have us supply a brand new unit via the drop down menus) into an ATS or ATS-V with plug and play simplicity (programming wise) and no errors!! This service is 100% custom to your vehicle and options and can be tweaked/adjusted for mods such as added OEM navigation, car play upgrade, added front park assist, HUD hardware retrofit as well as parts removed such as magnetic ride etc. This service when done in the recommended manner (matching vehicle year/content) is 100% warranty compliant software wise meaning there is no impact to the warranty on the rest of the vehicle. Since retrofitting these units requires physically modifying the cluster to fit in an ATS it would be up to the individual dealer whether to work with us on any cluster issues should any arise during the warranty period (if we supply the new hardware).

PLEASE NOTE: If we are supplying the hardware it is special order from the manufacturer and subject to varying lead time that we do not control. 2016-2017 Units are currently on backorder. Please make sure you triple check your selected cluster before checking out as the system automatically places an order with our supplier.


Q: How does this work?
A: You can choose to have us supply the 100% correct OEM Brand New cluster by using the drop downs above OR you may choose to source a new or used cluster on your own. If you choose to go the used route you first figure out your application (E.G. for a 2017 which infotainment do you have) and then check fitment of that part number with us via E-Mail. If you wish to have 100% OEM functionality AND retain your factory or factory backed extended warranty you MUST use the same model year cluster as your car; the ONLY exception to this is if you have had us do the proper Car Play/Android Auto retrofit programming using modules on our supported list. Then and only then may you use a 2016  part number (THIS APPLICATION IS PENDING FINAL TESTING!) Upon return simply plug the unit in and verify proper operation with your vehicle THEN modify the unit to fit your ATS. This weeds out any possibility of bad hardware prior to modification so if it needs to be replaced we can assist.

Q: So I have to modify the cluster to install it in an ATS correct?
A: Yes you do. There are different methods out there some different videos we’ve seen from customers etc. We dont really have anything to add here input wise we just supply the unit/programming its up to you to determine which modification method you want to do (AFTER testing the cluster prior to modification!)

Q: How do you know what options my ATS has so the cluster can be properly configured?
A: From your VIN! If you have added any factory options you think the cluster should display or interact with just put them in the order notes.

Q: I have a 2017 ATS how do I tell which cluster I order?
A: If you have RPO (on your build sticker likely in your glove box) IO5 or IO6 you will utilize the 2017 IO5/IO6 selection, if you have RPO IOS or IOT you will utilize the 2017 IOS/IOT selection.

Q: Can you do this for Export (Metric clusters)?
A: Yes this is just programming so no worries there.

Q: Does it HAVE to be the same model year of cluster as my ATS?
A: If you wish to have 100% OEM functionality AND retain your factory or factory backed extended warranty you MUST use the same model year cluster as your ATS; the ONLY exception to this is if you have had us do the proper Car Play/Android Auto retrofit programming using modules on our supported list. Then and only then may you use a 2016 part number (PENDING FINAL TESTING!). If you are out of warranty and understand the potential downside(s) and still want to use a mismatched cluster you will need to agree to that when choosing your configuration above. Please contact us prior to ordering so we can confirm which cluster you are looking at and your build to see what you may run into.

Q: I want to do the 2016 cluster retrofit into a 2013-2015 so that I can get the steering wheel controls back inside Car Play/Android Auto; what do I do?
A: Contact us and let us know which HMI and Radio you used and we can go from there. If you did a Car Play retrofit through us using the best practices list we provide you can utilize the 2016 Part number(s). Please note that if you have a 2014-2015 2.0L LTG equipped ATS it will show “AUTO STOP” On the tachometer.

Q: I did a Car Play/Android Auto retrofit and don’t have some steering wheel controls inside of Car Play/Android Auto; can you help me?
A: Yes but there is a specific list of compatible components and we need to do the programming on the other modules to make sure everything is 100% perfect. If you plan on doing the CP/AA upgrade at any point it’s best to try to do it all at the same time to save yourself a potential headache.

Q: Will I lose any features?
A: As the cluster arrives to you from us no you will not lose any features. How you choose to handle the physical modifications to the unit itself determines if you will lose any of the warning lamps on the outside of the unit. It may be possible to use light pipes or another method to work around that issue however we have no knowledge of the physical modifications required to make the unit fit only the programming side of the equation.

Q: Will I gain any features?
A: You may gain some features as the 12.3″ have slightly different menu selections. We can also enable things you have added such as indicators for front park assist or the Navigation menu if you have added factory navigation. If you have added FACTORY options that your ATS didn’t have please put what you have added in the notes section.

Q: Can you delete warning indicators for items I may have removed from the Vehicle??
A: Yes we can, this would all be custom and priced as such, contact us for details.

Q: What is the HUD Retrofit Option?
A: This enables the unit to drive a heads up display. Yes it can be installed no we do not provide support for that end of it but its definitely doable ALL of the clusters we supply have the HUD output. If you have Forward Collision Alert and choose to have the HUD retrofit your Forward Collision Alert light (in the dash) will not work but will be shown in the HUD after you add it.

Q: What is the Odometer Lock Option?
A: The Odometer lock  option removes the odometer hard lock from a cluster that has been tampered with or improperly installed (Odometer Showing ——). This does not remove tamper flags from other modules that may store them.

Q: Do I need to send in my factory cluster?
A. No, we only need you to send the proper CTS cluster you are sourcing (if you are choosing to supply it)

Q. Will the cluster look exactly like whats shown in the product picture?
A. A 2016+ unit is shown in the picture in CTS-V configuration. Physically yes they are the same unit but the layouts may be different. For example a non V series ATS wouldn’t have the single large center tach style layout as its all based on vehicle content. For the ATS-V it will have a V-Sport crest in the Tachometer.

Q. I have a Manual ATS-V, this cluster was never offered in a manual application; what can we do?
A. We have developed full proper manual support for this cluster in an ATS-V.

7 reviews for CTS 12.3″ Cluster Upgrade / Retrofit

  1. Kurt Burkhalter (verified owner)

    Best electronic upgrade for an ATS you can buy! Should have some basic undestanding of how things go together for installation. Cutting is required but sooooo worth it in every aspect. This is how the ATS-V should of come from the factory. The folkd at WAMS did a great job answering any questions I had in regards to functionality.

  2. RyanD@ZZP (verified owner)

    The product is amazing! I got it for my 2014 2.0T ATS and it works perfectly! Chris is amazing, knowledgeable and friendly. Obviously being a 14 not every single thing works (boost gauge and oil temp) but everything else paired with the 2014-2015 car play upgrade he sells, gives new life to the car and takes the awful stock gauge cluster and makes it really feel like a cadillac!

    As mentioned lots of cutting and customizing needs to be done to get it to fit properly but once it’s in, it’s amazing and well worth the work for it!

  3. Brian Sadek (verified owner)

    Worked perfectly fine out of the box and turnaround of my cluster was quick. Communication was good, too. Not a single thing more I could ask for as a customer.

  4. Joseph Schultz (verified owner)

    Easy transaction. Great communication. Worked right out of the box. Definitely how the ATS-V should’ve come from the factory. As another reviewer stated cutting and modifications are required, however the end result is well worth the time and patience needed for installation.

  5. Kevin Thibdeau (verified owner)

    Smooth Transaction. Item worked perfectly as described. Chris was quick to answer any questions I had in good detail. I retrofitted this into a 2016 Cadillac ATS and it really improved the driver experience. I will be coming back to WAMS for other electronic offerings soon, as this really is a one stop shop experience for everything related to improving the interactive electronics of the car.

    I filmed my retrofit into the ATS for anyone interested in doing this modfication, which I highly recommend. ( This install was not associated in any way with WAMS ) https://www.youtube.com/watch?v=uQMWjeJjpeE

  6. Robert Lee (verified owner)

    Highly recommend. I ordered the cluster on mar 20, 2022, received shipping notice on mar 23, and received it 5 days later. Packaged arrived well packed and in perfect condition. Overall very smooth transaction. I found various install pics in the ATS forums on Facebook and also viewed Kevin’s video (link above). As others have said, car should have come from the factory this way. You gain quite a few gauges but do lose the G meter in the stock cluster.

  7. dimpledeluxe (verified owner)

    I had to set my import ATS-V from miles to km because the car drives in Germany. When looking for a cluster in European version, I came across WAMS with the upgrade cluster from the CTS, and I bought it immediately. After installation, everything worked right away. The result is worth the manageable work to adapt the cluster on the vehicle, I can only recommend it. Keep it up WAMS!!👍🏻

Only logged in customers who have purchased this product may leave a review.