The power steering warning light on your 2023 Chrysler Pacifica indicates a problem with the Electric Power Steering (EPS) system. Unlike older hydraulic systems, the Pacifica uses an electric motor for steering assist, and this warning means that assist may be reduced or lost.
Electric Power Steering Overview
The Pacifica's EPS uses an electric motor mounted on the steering column or rack to provide power assist. Electronic sensors measure your steering effort and vehicle speed, commanding appropriate assist levels—more help at low speeds for parking, less at highway speeds for stability.
Warning Consequences
When the power steering warning illuminates, steering assist may be reduced, intermittent, or completely lost. The steering mechanism still works—you can turn the wheels—but it requires significantly more physical effort, especially at low speeds and during parking maneuvers.
Torque Sensor Issues
The torque sensor measures how hard you're turning the wheel, telling the system how much assist to provide. Torque sensor failures are common EPS fault causes. Symptoms include erratic assist levels, momentary loss of assist, or complete system shutdown.
Motor and Control Module
The EPS motor or its control module can fail, causing warning lights. Motor failures may be preceded by unusual steering noises or inconsistent assist. Module failures can be electrical or software-related, sometimes resolved with updates.
Battery and Electrical Supply
EPS systems are sensitive to voltage. A weak battery, poor battery connections, or alternator problems can cause EPS warnings. Before assuming major EPS component failure, ensure the battery and charging system are healthy—it's an easy and inexpensive check.
Steering Column Assembly
In some Pacifica configurations, the steering column contains the EPS motor and sensors as an integrated assembly. Failures may require column assembly replacement rather than individual component repair.