ACDelco 12845300 Front Suspension Automatic Forward Lamping Position Sensor

The ACDelco 12845300 is an OEM-quality front suspension automatic forward lamping position sensor, also commonly referred to as a front height sensor. This sensor monitors the vehicle's suspension position to detect whether the vehicle is tilted forward or rearward, enabling the automatic headlamp leveling system to adjust the headlight beam angle for optimal road illumination and driver visibility.

Key Features:

• Automatic Headlamp Leveling: Continuously monitors front suspension position and communicates with the vehicle's lighting control module to adjust headlamp beam angle automatically
• OEM Direct Replacement: Engineered and validated to meet the same rigorous standards as the original factory-installed component
• GM Genuine / ACDelco OE Quality: Designed, engineered, and tested by General Motors to ensure precise fit and reliable operation
• Front Position Sensor: Specifically calibrated for the front suspension mounting location
• GM Limited Warranty: Backed by GM's replacement parts limited warranty for added peace of mind

The ACDelco 12845300 front height sensor is a critical component of the automatic forward lighting system. When the sensor fails or sends inaccurate readings, headlamps may point too high or too low, reducing nighttime visibility and potentially blinding oncoming drivers. Replacing a faulty sensor with this genuine OEM part restores proper headlamp leveling function and ensures the system performs exactly as designed.