ScottSilverado1906

Got the same message. They replaced the positive battery cable. Message went away a week later.

2017 Silverado LT CC SB 5.3L 6-speed 3.42 68+ mph 4000 miles So my Vibration wasn't as bad as some of the videos that I have seen posted where the water in the cup was shaking all over the place. It also did not make any audible shaking sounds, but I could feel it. I noticed it on my first long trip with the truck and thought it might be a bad balance on the tire or something. I took it to the local chevy dealer and they ran the picoscope on it. They confirmed that it did have a vibration. It had a 15.3 mg Tire 1 vibration @ 14.1hz. They replaced the steering gear bushings and said that I had a defective Passive Exhaust Valve and installed a new exhaust from the Cat back. They ran the picoscope again and the amplitude was down from 15.3mg to ~3.5mg at 14.0hz. I have only had one short highway trip and it feels a little better. I will report back when I get a good run at highway speeds. Thanks to everyone who has contributed to this thread.

2017 Silverado LT CC SB 5.3L 6-speed 3.42 68+ mph 4000 miles So my Vibration wasn't as bad as some of the videos that I have seen posted where the water in the cup was shaking all over the place. It also did not make any audible shaking sounds, but I could feel it. I noticed it on my first long trip with the truck and thought it might be a bad balance on the tire or something. I took it to the local chevy dealer and they ran the picoscope on it. They confirmed that it did have a vibration. It had a 15.3 mg Tire 1 vibration @ 14.1hz. They replaced the steering gear bushings and said that I had a defective Passive Exhaust Valve and installed a new exhaust from the Cat back. They ran the picoscope again and the amplitude was down from 15.3mg to ~3.5mg at 14.0hz. I have only had one short highway trip and it feels a little better. I will report back when I get a good run at highway speeds. Thanks to everyone who has contributed to this thread.

Hoping to trade chrome for paint in Massachusetts/NH. Looking for summit white bumpers, grille and lights. 2017 Silverado LT 1500.

Who did this work? GM?

Just did this on my 17 CC 5.3. I am a believer. The truck is so much nicer to drive now. THANKS to the OP!