What is the EPS warning light on electric power steering?
The EPS warning light signals a fault in the electric power steering system and can mean reduced or lost steering assist. Driving with the light on can be safer if you reduce speed and seek service promptly.
What the EPS warning light indicates
The EPS warning light is a dashboard indicator that activates when the vehicle’s electric power steering system detects a fault. It is typically depicted as a steering wheel icon, often with an exclamation mark or the letters “EPS,” and may appear in amber or red depending on the model.
Common causes of an EPS warning
Several electrical and sensor issues can trigger the EPS warning, ranging from simple battery health to more complex module faults.
- Low or fluctuating battery voltage and charging problems
- Faulty EPS motor or control module
- Torque sensor or steering angle sensor failure
- Wiring faults, loose connectors, or blown fuses
- CAN bus communication errors between the EPS and other control modules
- Overheating of the EPS motor or thermal protection activation
- Software glitches or outdated firmware
In many cars, a failing EPS may still provide some steering assist, but the warning should prompt a professional diagnostic to prevent a loss of steering control while driving.
What to do if the EPS warning light comes on
When the light appears, assess the driving situation and plan for safe follow-up service. If steering feels heavy or assistance seems intermittent, stop when safe and seek help.
Before you act, consider the following recommended steps to understand and address the issue:
- Safely pull over and check for any obvious signs of trouble, such as unusual noises or severe steering stiffness.
- Restart the engine to see if the warning persists after a brief reset.
- Inspect the battery and charging system; a weak battery or failing alternator can trigger EPS faults.
- Check relevant fuses and connectors tied to the EPS system; reseat or replace faulty fuses if you are confident and have the manual.
- Limit driving and arrange for professional inspection or towing to a service center if the light remains on or steering becomes unreliable.
Avoid aggressive maneuvers and extended driving with the warning light active. Continuous operation with an EPS fault can increase the risk of sudden loss of steering assist.
EPS versus other steering warnings
Some vehicles display a generic “Power Steering” or “Steering Assist” warning rather than a specific EPS label. The underlying causes often involve the same family of issues—electrical, sensor, or control-module faults—rather than a single mechanical failure.
Summary
The EPS warning light flags a fault in the electric power steering system that can reduce or stop steering assist. It calls for timely diagnosis, starting with basic electrical checks and progressing to professional diagnostics of the EPS motor, sensors, and controllers. In the meantime, drive cautiously and seek help to restore full, reliable steering.
Note: Always consult your vehicle’s owner’s manual for exact symbols and steps, as EPS indicators vary by make and model. If in doubt, contact the dealer or a licensed mechanic for guidance.
Is it safe to drive with an EPS light on?
No, it is not safe to drive with the EPS (Electronic Power Steering) light on because it indicates a fault in the steering system, which can make the vehicle harder to steer and increase the risk of an accident. You should pull over to a safe location as soon as possible, avoid driving further if steering becomes extremely difficult, and have the vehicle inspected by a professional mechanic to diagnose and fix the problem.
This video explains the meaning of the EPS warning light and its potential impact on steering: 54sCar ManufacturingYouTube · Apr 10, 2025
What to do when the EPS light is on
- Pull over immediately: Find a safe place to stop your vehicle as soon as it is practical.
- Assess the steering: Check if steering is noticeably harder or if the vehicle pulls to one side. If it feels unresponsive, avoid driving and have it towed to a professional.
- Check for basic issues (if you have a hydraulic system): While this is less common with EPS, for vehicles with hydraulic power steering, check the fluid level. If it's low, top it off and look for leaks.
- Do not continue driving long distances: Driving with the light on can cause further damage to the steering system and is a safety risk, especially at higher speeds or during sudden maneuvers.
- Seek professional help: Take your vehicle to a mechanic. They can use a diagnostic tool to read the error code and identify the exact problem. The repair could be as simple as a sensor reset or could require replacing a faulty component.
This video demonstrates how to check power steering fluid and what to look for during inspection: 58sDashboard warning lights YouTube · Feb 5, 2025
How much does it cost to fix EPS?
EPS (electric power steering) repair costs vary significantly based on the specific problem, ranging from a $100–$300 minor fix to a $530–$1,550 full steering column replacement. Costs for individual components can include $300–$800 for an EPS motor or $700–$2,420 for a rack and pinion replacement, with labor and specific vehicle models impacting the final price.
Repair cost breakdown for electric power steering (EPS)
- Minor fixes: $100–$300
- EPS motor replacement: $300–$800
- Full steering column replacement: $530–$1,550
- Power steering rack replacement: $710–$2,420 (often includes a wheel alignment)
- Electric power steering rack replacement: Up to $1,700 or more, depending on labor rates and the need for reprogramming
Factors that influence cost
- Vehicle make and model: Luxury or large vehicles often have more expensive parts.
- Parts used: The cost can vary depending on whether you use OEM (original equipment manufacturer) parts, aftermarket parts, or a used pump.
- Labor rates: Labor costs vary by location and the complexity of the repair.
- Additional services: A rack and pinion replacement, for example, will require a subsequent wheel alignment, adding to the total cost.
- Severity of the issue: A simple fix like a fluid top-off is much cheaper than a complete system replacement.
What are common EPS problems?
Electric power steering (EPS) systems can encounter several issues that affect your vehicle's handling. Common problems include sensor malfunctions and wiring failures, which often lead to stiffness or loss of assist.
How to fix electric power steering EPS warning light?
5 seconds. Turn the steering wheel to the full left lock position and apply force for approximately. 5 seconds. Return the steering wheel to the straightforward. Position turn off the ignition.
