Arnott RH-5264 Headlight Level Sensor - Rear Right

Arnott RH-5264 Headlight Level Sensor

Arnott RH-5264 is a new headlight level sensor for rear right applications on select Buick Lucerne and Cadillac DTS models. It monitors chassis-to-road distance and sends that input to the ECU so the air suspension system can adjust ride height as needed.

Built with a black oval male connector and pin terminals, this standard-grade sensor is a direct-fit replacement for vehicles that rely on electronic ride height feedback. Use RH-5264 when servicing a worn or damaged rear right sensor on a Buick Lucerne or Cadillac DTS.

Key Features

• New Arnott headlight level sensor, part number RH-5264
• Rear right position for select Buick Lucerne and Cadillac DTS applications
• Black oval connector with 1 connector, male gender
• Pin terminal design with male terminal gender
• Standard-grade replacement for air suspension ride height monitoring
• Cross-reference: this part cross-references OE number 25767364 for the same application

How It Works

This sensor measures the changing distance between the road surface and the vehicle chassis, then relays that information to the ECU. The system uses that signal to command the air suspension compressor and air struts to raise or lower the vehicle as needed. On 2006-2011 Buick Lucerne rear right and 2006-2011 Cadillac DTS rear right applications, RH-5264 restores the feedback needed for proper leveling control.

Common Problems This Part Can Address

• Suspension warning lights related to ride height sensor faults
• Uneven vehicle stance or incorrect rear ride height
• Delayed or improper air suspension compressor response
• Sensor damage from road debris, water, salt, or impact
• Faulty height readings affecting leveling control on Buick Lucerne and Cadillac DTS models

Installation Notes

Verify rear right placement before installation and compare the connector shape, terminal type, and mounting points to the original sensor. Inspect the surrounding suspension linkage and wiring for corrosion or damage before replacing the unit. After installation, clear any stored fault codes and confirm that the leveling system responds correctly.

Quality Assurance

Arnott manufactures aftermarket suspension components with application-specific fitment and OE-style function in mind. RH-5264 is supplied as a new replacement sensor for direct service on the listed Buick Lucerne and Cadillac DTS rear right applications.