Restore Accuracy After Bigger Tires: Put the finishing touch on your lifted ride with Rough Country 's Speedometer Calibration Device. Designed for larger tire setups, this easy-to-use calibrator ensures your speedometer displays true readings - no more guessing your actual speed.Plug-and-Play Simplicity: Installation is quick and hassle-free. Just connect the device to your vehicle's Diagnostic Link Connector Port and in minutes your speedometer, shift points, and stability control are all recalibrated to factory precision.Optimized Performance and Control: Unlike simple readout changes, Rough Country 's calibrator updates your vehicle's ECM to maintain accurate shift timing and reliable electronic stability control, keeping your driving experience smooth and safe.Built-In Diagnostic Reader: Manage "check engine" and "service" lights with ease. The calibrator reads and clears diagnostic trouble codes and even allows you to return to stock settings whenever needed - perfect before servicing your vehicle.Reliable and Backed by Warranty: Enjoy peace of mind knowing your investment is protected by Rough Country 's 1-Year Warranty. Get professional-grade calibration and full system compatibility at an unbeatable value.Accurate Speedometer Readings: Corrects your speedometer to display true speeds after installing larger tires.\ Simple Plug-and-Play Setup: Installs easily with no cutting, splicing, or complex programming required.\ Optimized Shift Points: Updates your vehicle's ECM to maintain smooth, factory-quality shifting with oversized tires.\ Enhanced Stability Control: Recalibrates your Electronic Stability Control system for reliable handling and performance.\ Diagnostic Code Reader: Reads and clears trouble codes, including "check engine" lights, for quick issue resolution.\ Restore to Stock Anytime: Easily revert your vehicle to factory settings whenever you choose.\ Backed by a 1-Year Warranty: Includes reliable protection and support from Rough Country .2018-2018:2WD:Ram:1500;2018-2018:4WD:Ram:1500;2020-2023:4WD:Jeep:Gladiator;2018-2023:4WD:Jeep:Wranglerhttps://s3.amazonaws.com/roughcountry/install/919001900:Install Guide;Quick+Install+guide+consolidated:Quick Install Guide.pdf
