ACDelco 84138217 Rear Driver Side Suspension Self-Leveling Position Sensor

The ACDelco 84138217 is a GM Genuine Parts rear driver side suspension self-leveling position sensor designed for vehicles equipped with automatic forward lighting leveling systems. This OE-quality sensor monitors suspension height and position to maintain proper vehicle ride height and headlight aim during load changes and driving conditions.

Key Features:

• GM Genuine Parts OE quality ensures precise fit and function
• Monitors rear suspension position for automatic leveling systems
• Integrates with forward lighting leveling control systems
• Driver side (left) rear mounting position
• Direct replacement for original equipment sensor
• Manufactured to meet or exceed GM engineering standards

This suspension position sensor works in conjunction with the vehicle's automatic leveling system to adjust ride height and headlight aim. When the sensor detects changes in suspension position due to cargo loading or road conditions, it sends signals to the control module to maintain proper vehicle stance and optimal headlight alignment. Essential for vehicles with adaptive suspension or automatic headlight leveling features.