GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hello and welcome to just answer, my name is ***** ***** master tech here to help. I cannot see or hear your vehicle so I rely on your input so I can help you better. I read your notes to what is happening. The reason your ABS light is on is because the ECU has encountered a problem in a system and set a fault code. So what I suggest is to have a code reader or scanner pull the code and we can proceed to solve this.