Delphi SS21588 ABS Wheel Speed Sensor - Rear

Rear ABS Wheel Speed Sensor for OE-Style Brake Monitoring

The Delphi SS21588 rear ABS wheel speed sensor is a standard replacement part built for accurate wheel speed signal reporting in vehicles equipped with rear-mounted ABS sensing. It is engineered and validated to OE standards, helping maintain consistent braking system input on applications such as the Buick Enclave, Chevrolet Blazer, Chevrolet Traverse, Cadillac XT5, Cadillac XT6, and GMC Acadia.

With a female rectangular connector, 2 terminals, and an included wiring harness, this rear ABS sensor is built for direct-fit service on the listed applications. Delphi SS21588 is a practical choice when replacing a worn or failed rear wheel speed sensor on GM SUVs and crossovers.

Key Features

• Rear ABS wheel speed sensor for brake system signal monitoring
• Standard replacement grade for OE-style service
• Female rectangular connector with 2 blade terminals
• Wiring harness included for the listed applications
• Tested and calibrated to OE standards
• Package contents: ABS wheel speed sensor and instruction sheet
• Part number: SS21588

Detailed Description

Delphi SS21588 is part of Delphi’s sensor portfolio, which is developed with OE-focused validation methods and calibrated for accurate readings. This rear ABS wheel speed sensor is built to replace the original sensor on supported GM platforms, including the Buick Enclave, Chevrolet Blazer, Chevrolet Traverse, Cadillac XT5, Cadillac XT6, and GMC Acadia. The sensor uses a single female connector, blade terminals, and a rectangular connector shape for a service-friendly fit on the rear position.

This part cross-references Standard Ignition ALS3119 for the same application. If you are searching for a rear ABS wheel speed sensor for a 2019-2024 Buick Enclave, 2020-2024 Chevrolet Blazer, or 2020-2023 Chevrolet Traverse, Delphi SS21588 is the matching OE-style replacement to compare against your original unit.

What It Helps Address

• ABS warning light caused by a failed rear wheel speed sensor
• Erratic or missing wheel speed signal at the rear axle
• Brake system fault codes related to rear ABS input
• Intermittent traction control or stability control warnings tied to wheel speed data
• Sensor replacement needs after wiring or connector wear

Installation Notes and Tips

• Verify rear-position fitment before ordering; this sensor is listed for rear applications only.
• Compare the connector shape, terminal count, and harness length to the original sensor.
• Inspect the tone ring, hub area, and wiring path before installing the new sensor.
• Clear diagnostic trouble codes after installation and confirm proper ABS operation.
• Use the included instruction sheet during installation.

Quality Assurance

Delphi states that its sensors are tested and calibrated to OE standards and validated through stringent development methods. That focus on signal accuracy helps support reliable brake system performance and reduces repeat repairs on the listed applications. Part number SS21588 is built as a standard replacement rear ABS wheel speed sensor for service work on compatible GM vehicles.

• Fits 2019-2024 Buick Enclave, rear
• Fits 2020-2024 Chevrolet Blazer, rear
• Fits 2020-2023 Chevrolet Traverse, rear
• Fits 2020-2022 Cadillac XT5, rear
• Fits 2020-2022 Cadillac XT6, rear
• Fits 2020-2022 GMC Acadia, rear