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Review on Hypertech 730129 Line Speedometer Calibrator by Jim Polacek

Revainrating 3 out of 5

Cruise Control: Lighting and Electrical

I have a 2020 GMC Canyon. I thought it would be easy but the only easy part was the download. I had to remove the lower part of the dashboard, which also affected the cruise control. So if the speedometer says I'm driving at 63 mph and I set the cruise control it will be several miles per hour lower (60 mph) even if I'm driving at 63 mph.

Pros
  • Easy to install on factory wiring harness - no connector required
Cons
  • Frequency