Global Parts 1815864 Disc Brake Pad Wear Sensor - Rear

Brake Wear Sensor for Rear Fitment

Global Parts 1815864 is a direct replacement disc brake pad wear sensor for rear applications. It is built to monitor brake pad thickness and trigger a warning when the pads are nearing the end of service life, helping maintain consistent braking performance on Cadillac CT4 and Cadillac CT5 models.

Key Features

• Direct replacement brake wear sensor for rear brake applications
• Blade terminal type with 2 terminals
• Female connector with oval connector shape
• 1-wire design with wiring harness included
• Designed for accurate brake pad wear detection
• Part number: 1815864

Detailed Description

This Global Parts disc brake pad wear sensor is engineered for rear brake monitoring on 2020 Cadillac CT4, 2022-2025 Cadillac CT4, and 2020-2025 Cadillac CT5 models. It uses a blade-style terminal layout, an oval female connector, and a 1-wire configuration to match the original sensor connection on the vehicle. The sensor helps detect thinning brake pads early so the driver receives a wear alert before brake performance is affected. If you are searching for a rear brake pad wear sensor for Cadillac CT4 or Cadillac CT5, part number 1815864 is a direct replacement option.

This part cross-references 2BWS0474 and 84771655 for the same application.

What It Is Used For

• Brake pad wear warning light or message stays on after pad service
• Broken, damaged, or corroded rear brake wear sensor
• Incorrect brake pad wear readings from the existing sensor
• Restoring brake wear monitoring on Cadillac CT4 and Cadillac CT5 rear brakes

Installation Notes and Tips

Verify rear position and connector style before installation. Inspect the brake pad wear sensor routing, connector lock, and harness condition during brake service. Replace the sensor if the original lead is damaged, the connector is loose, or the warning system does not reset after pad replacement. Confirm fitment by year, make, model, and rear position before ordering part number 1815864.

Quality Assurance

Global Parts supplies this brake wear sensor as a direct replacement component designed to match the vehicle application and support reliable brake wear detection. Accurate sensor operation helps maintain proper brake system monitoring on Cadillac CT4 and Cadillac CT5 rear brake setups.