Speedometer Calibrator for Jeep Wrangler, Gladiator, Ram 1500
- Fits 2019-2023 Jeep Wrangler 4WD, 2020-2023 Jeep Gladiator 4WD, and 2018 Ram 1500 4WD or RWD — check submodels in the fitment section
- Does not work on Adaptive Cruise Control, 2.0/3.6L hybrid, or 392 models; not compatible with any performance programmer
- Plug-and-play setup, no cutting or splicing — install time listed at 5-10 minutes
- Locks to one vehicle once programmed; returning that vehicle to stock frees the unit
- Not for sale or use in California
- Warranty: 1 Year Limited Warranty. Shipping weight: 1.0 lb
The Trail Fortress check
Will it fit your truck?
✓ Fits
Download the latest software update here. This programmer is designed to function as a standalone unit and is NOT compatible with any type of performance programmer. Emissions Certifications: Not for sale or use in California. Does NOT work on models with Adaptive Cruise Control. Does NOT work on 2.0/3.6L Hybrid models. Does NOT work on 392 models. Rough Country's Speedometer Calibrator can only be used with one vehicle at a time. As with all other programmers once programmed the programmer is locked to that vehicle and cannot be used with any other vehicles until the programmed vehicle is returned to stock settings. Fitment on this page is based on the manufacturer’s application data.
About this part
Speedometer Calibrator, fitment-checked
Rough Country 90019 is a handheld speedometer calibrator for the 2019-2023 Jeep Wrangler 4WD, 2020-2023 Jeep Gladiator 4WD, and 2018 Ram 1500 in 4WD or RWD. It resets the ECM for oversized tires so the speedometer reads true, keeps shift points and stability control in line, and reads or clears trouble codes. It does not work on Adaptive Cruise Control, 2.0/3.6L hybrid, or 392 models.
This speedometer calibrator for the 2019-2023 Jeep Wrangler, 2020-2023 Jeep Gladiator, and 2018 Ram 1500 plugs into the diagnostic port with no cutting or splicing, and Rough Country lists the job at 5-10 minutes. Beyond tire-size correction, it adjusts shift points, recalibrates electronic stability control, and returns the vehicle to factory settings whenever you want. It runs standalone and will not work alongside a performance programmer. Once written, the unit locks to that vehicle until that vehicle is set back to stock. Not for sale or use in California. A downloadable quick install guide is available.
Specifications
Specs
| Brand | Rough Country |
| Part number | 90019 |
| UPC / GTIN | 00843030152109 |
| Shipping weight | 1 lb |
| Warranty | 1 Year Limited Warranty |
| Country of origin | US |
| Category | Performance › Tuners & Monitors |
| Installation guide | Downloadable PDF |
Why buy here