Larry H.
I have a 2011 GMC 2500 Sierra HD
I have a 2011 GMC 2500 Sierra HD. I sent in an ABS control module for repair at a cost of $388. It was returned and work fine for 4 months then failed. I returned it for repair under the warranty. They said it could not be repaired do to water damaged. I could see some corrosion so I agreed to purchase a replacement from them for $950. It lasted after 4 months also .This time I used a different mechanic who I new had an excellent reputation. I returned it and to my surprise they said the same thing that it had corrosion could not be repaired. This time they wanted $750 to replace it. The mechanic and I both looked at the module and saw no signs of corrosion. I have conclude that this company does not honor there warranty.
Response from Circuit Board MedicsSep 28, 2026
Larry, We are sorry for the frustration and inconvenience you’ve experienced with both ABS modules, particularly after you paid for a replacement when the original module could not be repaired because of corrosion. We understand why this situation has been disappointing and why you have concerns about the warranty. When the original module was returned in March and the replacement was returned in September, our quality team identified corrosion in both units. Our warranty covers the repair work we perform; however, it does not cover corrosion unless it resulted from our repair. In this case, the corrosion found on the control module suggested that a seal on the pump may have allowed moisture to enter the assembled unit. Based on the corrosion present in both modules, we were concerned that a third module would fail in the same way, so we advised you to address the inadequate seal on the pump. We understand that neither you nor your mechanic saw visible signs of corrosion on the replacement, and we would welcome the opportunity to talk through our findings with you again. We offered to source a replacement module at our cost to help restore the electronic portion of the ABS system in your truck, and we understand that you chose to purchase a replacement module elsewhere. Our offer to refund the repair fee upon receipt of proof of that purchase remains available. As soon as we receive the receipt, we will process the refund promptly. Please contact us so we can review everything together and work toward a fair resolution.

