nextyear58

I am having the same issue with my radio. I own a 2018 GMC Sierra and was wondering if anyone could send me a pic, or post one on this thread of the Human Interface Control Module Bypass Module. RPO Code: K188 that is located just left of the steering column. I would really like to get my problem fixed. I just am not sure how to identify the box. I have identified the HMI 2.5 box behind the glove box but not this specific one mentioned in this post. Thanks, Mike B. from Iowa