Speedometer Calibrator for Silverado 1500 & Sierra 1500 (2022-2026)
- Fits 2022-2026 Silverado 1500 (4WD/RWD), 2022-2026 Sierra 1500 (4WD/RWD), and 2022-2025 Sierra 4WD — see full fitment list
- Requires the 10-speed transmission and a 2022-or-newer Chevy/GMC refresh frontend style
- Rescales the speedometer, OE shift points, and electronic stability control for larger tires; stock settings can be restored
- Locks to one vehicle at a time; not compatible with any performance programmer
- Not for sale or use in California
- 1 Year Limited Warranty — shipping weight: 1.0 lb
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Will it fit your truck?
✓ Fits
Download the latest software update here. ONLY fits models equipped with a 10-speed transmission. 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. 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. ONLY fits 2022+ refresh models. This kit ONLY fits 2022+ Chevy/GMC refresh models with the below frontend styles. Fitment on this page is based on the manufacturer’s application data.
About this part
Speedometer Calibrator, fitment-checked
Rough Country 90050 is a plug-in speedometer calibrator for 2022-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks running larger tires. It corrects speedometer readings, adjusts factory ECM shift points, and retunes electronic stability control for the new tire size, with the option to restore stock settings. Fits only trucks with the 10-speed transmission, and only 2022-and-newer refresh body styles. Not for sale or use in California.
This speedometer calibrator covers 2022-2026 Chevrolet Silverado 1500 in 4WD and RWD, 2022-2026 GMC Sierra 1500 in 4WD and RWD, and 2022-2025 GMC Sierra 4WD across the submodels listed in the fitment section, from WT and Pro up through High Country and Denali Ultimate. It connects through the diagnostic port with no cutting or splicing. Confirm your truck has the 10-speed transmission and a 2022-or-newer refresh frontend before ordering. The unit works with one truck at a time and locks to that vehicle until it is returned to stock, and it cannot be paired with a performance programmer. A downloadable installation guide is available.
Specifications
Specs
| Brand | Rough Country |
| Part number | 90050 |
| UPC / GTIN | 00840269931291 |
| Shipping weight | 1 lb |
| Warranty | 1 Year Limited Warranty |
| Country of origin | US |
| Category | Performance › Tuners & Monitors |
| Installation guide | Downloadable PDF |
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