A properly functioning disc brake pad wear sensor is essential to keeping the driver informed of the remaining life of a brake pad and/or when it's time to install a new pad. It should be replaced whenever the corresponding brake pad is replaced or when a vehicle warning light indicates. This sensor is designed to match the performance of an original equipment part on specified vehicles and can also replace a sensor that is malfunctioning due to damage or internal component failure. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Silverado 2500 HD: 2020, 2021, 2022, 2023, 2024, 2025] - [Chevrolet Silverado 3500 HD: 2020, 2021, 2022, 2023, 2024, 2025] - [GMC Sierra 2500 HD: 2020, 2021, 2022, 2023, 2024, 2025] - [GMC Sierra 3500 HD: 2020, 2021, 2022, 2023, 2024, 2025]