Restore Full 4WD Control to Your GM Truck or SUV
Real-World Repair Story
I remember a customer bringing in his ’11 Sierra 2500 just before a big winter storm was predicted. His “Service 4WD” light was on, and the selector switch was dead—he was stuck in 2WD. He was worried about getting to his rural property safely. A quick scan showed a U0102 code, indicating a lost communication with the TCCM. Instead of a multi-day wait for a dealership appointment, we ordered a pre-programmed module like this one. It arrived the next day, the install took less than 30 minutes, and his 4×4 was fully functional. He called back during the storm, grateful he could confidently navigate the snowy roads. That’s the peace of mind this solution provides.