Arnott RH-5072 Headlight Level Sensor - Rear Right

Rear Right Headlight Level Sensor for GM SUVs

Arnott RH-5072 is a new rear right headlight level sensor for select Cadillac, Chevrolet, and GMC vehicles with air suspension leveling systems. It reads chassis height changes and sends that information to the ECU so the system can adjust air pressure as needed.

Compatible With 2004-2010 Cadillac Escalade, Escalade ESV, and Escalade EXT; 2004-2010 Chevrolet Avalanche, Suburban 1500, and Tahoe; and 2004-2010 GMC Yukon and Yukon XL 1500 in the rear right position, with application-specific notes listed below.

Key Features

• Brand: Arnott
• Part number: RH-5072
• Headlight level sensor / ride height sensor application
• New, standard-grade replacement
• 1 oval connector with male pin terminals
• Direct-fit style for the rear right position
• Interchange reference: 15128649

How It Works

This sensor measures the distance between the chassis and the road surface and reports that data to the vehicle control system. On air-suspension-equipped GM trucks and SUVs, accurate ride height input helps the ECU command the compressor and air struts to maintain proper vehicle leveling. Arnott RH-5072 is built for the rear right location and is a practical replacement when the original sensor is worn, damaged, or affected by moisture or road contamination.

This part cross-references OE number 15128649 for the same application.

Common Problems It Can Address

• Incorrect rear ride height readings
• Suspension leveling faults or warning messages
• Uneven vehicle stance at the rear right corner
• Delayed or improper air suspension response
• Sensor failure from road debris, water, or salt intrusion

Installation Notes

Verify the rear right mounting location before ordering, especially on 2004 models with the second-design sensor and no pigtail, and on 2010 models with cast steel arms. Confirm the connector shape, terminal type, and vehicle configuration against the original part before installation. Inspect the linkage and mounting points for corrosion or damage so the new sensor can report height accurately.

Quality Assurance

Arnott supplies aftermarket suspension components for vehicles that rely on accurate height feedback for air suspension control. RH-5072 is a new replacement sensor built to match the listed GM applications and restore proper ride-height signal input to the ECU.