Arnott RH-3999 Headlight Level Sensor - Rear

Overview of Arnott RH-3999 Headlight Level Sensor

The Arnott RH-3999 headlight level sensor is designed specifically for Tesla Model S vehicles. This new sensor ensures accurate headlight leveling for optimal visibility and safety during night driving or varying load conditions.

• Compatible with Tesla Model S
• Connector color: Various
• Oval-shaped female connector with 1 connector quantity
• Pin-type terminals, 4 male terminals
• Standard grade type for reliable performance
• New, not remanufactured
• No mounting hardware included

Detailed Product Description

The Arnott RH-3999 headlight level sensor features a single oval-shaped female connector designed to interface seamlessly with the Tesla Model S electrical system. It includes four male pin terminals, ensuring a secure and stable connection. The sensor is manufactured to standard grade specifications, providing consistent and dependable operation. This part is new and has not been remanufactured, guaranteeing original quality and longevity. The connector color varies, which is typical for this sensor type, and it does not come with mounting hardware, so existing hardware should be reused during installation.

Common Applications and Issues Addressed

• Corrects headlight misalignment caused by sensor failure
• Resolves automatic leveling system errors in Tesla Model S
• Improves headlight performance under varying vehicle load conditions
• Eliminates dashboard warning lights related to headlight leveling
• Restores proper sensor communication with vehicle control modules

Installation Notes and Tips

When installing the Arnott RH-3999 headlight level sensor on a Tesla Model S, ensure the oval female connector is properly aligned with the vehicle’s wiring harness. Verify that all four male pin terminals are securely connected to avoid intermittent sensor signals. Since mounting hardware is not included, retain and reuse the original hardware for proper sensor mounting. It is recommended to calibrate the headlight leveling system after installation to ensure accurate sensor readings and headlight adjustment.

Quality Assurance and Warranty

Arnott provides this headlight level sensor as a new, standard-grade replacement part. While specific warranty details are not provided here, Arnott products typically meet OEM standards for fit and function. Using the RH-3999 sensor helps maintain the integrity of the Tesla Model S headlight leveling system and supports vehicle safety compliance.