🚗 Speedometer Calibrator for 2019-2020 Chevy Silverado, GMC Sierra 1500 & 2020 2500HD | Rough Country Code Reader 90045 Review

Tech support was easy to deal with, I downloaded the module setup program, connected the module to my laptop and it took about five seconds. Installation in the 2020 GMC Denali 2500HD also took about five minutes.

Easy to install, easy to update. But it still doesn't affect your speed, it's actually the other way around. Now if I go 75, my truck says it's 77. My truck used to say I run a 75, and I really run a 79. So I'm going to try and experiment with the tire size to see if I can get it right. However, this also removed my 100 speed limiter.

Weird Review Questions. Accuracy: Appears to be within 1 mph of actual. Not yet used Thickness: ? What for what? Here's an overview: After connecting to a computer and running the update, I ran the program and found it very easy to select the tire size and save the settings. After that I spent about 5 minutes under my truck's dash trying to find the plug, unplugging it and plugging it back into the box before plugging everything back in and refilling the box. Works as intended and no error…

Download the application to your computer from the Rough Country website, plug in the module and update by following the simple instructions. Tire size varies slightly from manufacturer to manufacturer. So when I used the previous size/current size, the speedometer now read about 1 mph at 60 mph. Removed the module and plugged into the PC and used the previous altitude/new altitude option and now the speedometer reads exactly like my Waze app at all speeds. Truck straps back, or your key fob…