How to place an order


See below for detailed step-by-step instructions on how to place an order with us.


Repair Service


Place an order online or over the phone toll-free with our sales representative.


We will e-mail you pre-paid shipping labels. You send the part to us via UPS.


We will test, diagnose and repair your module the same day it arrives at our facility.

Our Repair service entails removing the module from your vehicle and sending it to our facility for repair. Once we receive your package, we will test, diagnose and repair your module. We will complete a final test of the module again before shipping it back to you.

This service is a good option if you are unsure if the problem is in a particular module. We will test it before proceeding with the service and provide you with a repair report after completion. Since the programming of your module is not modified in any way, it will be “plug and play” when you get it back!

Placing the order

Purchase the repair service on our website or over the phone with our sales representative.

Check your e-mail

Within 30 minutes of processing your order, we will e-mail you pre-paid shipping labels, shipping instructions and a fault symptoms report.

Ship your part to us

Remove the module from your vehicle and pack it securely in a box roughly the same size as your module. Please ensure that you follow the shipping instructions provided.

Testing and Repair service

If the module faults during our testing process, our technician will proceed with the Repair service as ordered.

Shipping the repaired module back to you

In most cases, the repaired module is shipped back to you the same day we receive your package at our facility. You will receive an email from UPS with the tracking information once your order is shipped.


Once you receive your package, review our repair report and reinstall the module back into your vehicle. Your module should be “plug and play” with all functions restored.


You may contact us by phone toll-free at 1-888-712-2525 (US & Canada) or 905-670-4010 (local). If you haven’t done business with us before, you will be asked to fill out a credit card authorization form before we can process the order. Submitting the order online skips this step since you’re inputting the credit card information yourself.

Orders are processed daily during our regular business hours Monday – Friday 8:30AM to 5PM (EST), excluding holidays.
If the order submission fails, please review the information that you provided us. Your billing address must match the address linked to your credit card. If the information is correct and your order still fails, chances are there is an international block on your credit card. Call your credit card company and they will lift the block temporarily, allowing you to put the order through. If that still doesn’t work, please contact us to place an order over the phone.
Since many issues are intermittent, or can only be tested while the module is inside a working vehicle, there can never be a 100% guarantee that a defective module will fault during our testing process. If the module does not fault, we will contact you with the test results. You will be provided with recommendations from our technicians based on the faults that you provided. In some cases, the options provided may incur additional cost. You will have the option to either proceed with one of the provided recommendations, or have the module sent back to you without proceeding with the service. If you decide to have the module shipped back to you without service, we will refund the service cost minus a $75 test fee. Please note that shipping costs cannot be refunded.
After you place your order, you will receive an e-mail with shipping labels and an attachment called a “Fault Symptoms Report”. This report should be filled out with the faults you’re seeing with the module, diagnostic trouble codes, driving symptoms, etc. Please be as detailed as possible, as our technicians will use the information you provide and compare their findings with your notes. Please do not forget to include this report, as we require it to be filled out before we proceed with testing and servicing the module.
Mike Cannon
Mike Cannon
Expensive but incredibly talented
Glen Chapman
Glen Chapman
Very pleased so far with the repaired TCM. I’ve been running my 2011 Duramax diesel with the repaired TCM for a month now and have had no problems. Only reason I’ve rated as a 4star is that the cost to repair is more than a new TCM from GM. But the repair only took 3 weeks, the new TCM from GM could be 6-8-12 months wait. Thanks XeMODex for solving my problem!
S&L Pierog
S&L Pierog
The repair was done on time and worked properly upon installation. Customer service was excellent and every time I called, I talked to a representative promptly.
Larry Bequette
Larry Bequette
Excellent service, fast turnaround and my EBCM works. Thank You
mark Stanley
mark Stanley
Sent my Transmission Control Module for rebuild and had it back in 3 weeks, most of that time was shipping time because they are in Canada. My mechanic installed it and I have no issues at all. Transmission shifts great.
Carrie Williams
Carrie Williams
Fast service! Received my part back fixed within 10 days
Jayden Hachey
Jayden Hachey
Xemodex got our TCM working for our truck. Replacement parts were 1 year away. 10/10. Would use them again.
Ismael Diaz-Diaz
Ismael Diaz-Diaz
I send my abs module the process was smooth and fast everything was great my abs is working like new