Genuine GM 85157019 Short Range Radar Sensor Upgrade or repair your vehicle's safety suite with this Genuine GM 85157019 Short Range Radar Sensor. As an ACDelco Original Equipment (OE) part, this sensor is designed to provide precise object detection for your vehicle's driver-assist technologies. Commonly mounted behind the rear bumper fascia or in the front grille area, this radar unit detects vehicles in your blind spots and cross-traffic when reversing. If your dashboard is displaying "Service Side Detection System" or "Driver Assist System Unavailable" messages, a faulty or damaged radar sensor is often the culprit. Key Features OEM Precision: Engineered specifically for GM's high-speed communication networks to ensure zero latency in collision warnings. Multi-Function Support: Powers essential safety features including Lane Change Alert, Rear Cross Traffic Alert, and Adaptive Cruise Control support. Weather-Sealed Housing: Designed to withstand road salt, moisture, and debris while maintaining signal clarity. Direct Interchange: This part replaces older numbers 84712711, 84907386, and 85000047. Note that it has been superseded by part number 86558606 Vehicle Compatibility This radar sensor is used in late-model (2020–2026) GM luxury vehicles and trucks, including: Cadillac: CT4, CT5, Escalade, Escalade ESV Chevrolet: Silverado 1500/2500, Tahoe, Suburban GMC: Sierra 1500/2500, Yukon, Yukon XL, Hummer EV