Rough Country 90019_B Jeep Speedometer Calibrator 18-21 Wrangler JL Gladiator JT

Resets your speedometer to accurate readings for larger tires Easy Plug and Play connection Updates OE ECM Shift Points to accommodate larger tires Recalibrates Electronic Stability Control to work with larger tires Reads diagnostic codes like “check engine light” Option to return to stock settings 1-year warranty Download the latest software update here Emissions Certifications: Not for sale or use in California Does not work on models with Adaptive Cruise Control Does not work on diesel models