Why is there a steering symbol warning?
The steering symbol warning signals a fault in the vehicle's steering assistance system and can reduce your ability to steer. It should be treated as urgent and checked by a professional as soon as safely possible.
In modern cars, steering assist is provided by either a hydraulic system or an electric power steering (EPS) system. The warning icon—often a steering wheel with an exclamation mark or a PS label—activates when the vehicle's computer detects abnormal pressure, torque, or sensor readings that could compromise steering performance.
What the warning means for drivers
When the warning light illuminates, it indicates the vehicle’s steering assist is not operating within specifications. Depending on the system, you may still be able to steer, but with reduced or no assist, making steering heavier and more demanding, especially at low speeds or during tight maneuvers.
Common causes of the steering symbol warning
The warning can be triggered by a range of issues, spanning hydraulic and electric power steering systems. Here are the most common ones you’re likely to encounter.
Hydraulic power steering issues
These are problems in vehicles that rely on a fluid-based assist. If the system can’t maintain proper hydraulic pressure, the warning can come on.
- Low or leaking hydraulic power steering fluid
- Worn or broken power steering belt (drives the pump)
- Faulty power steering pump or a failure in the hydraulic circuit
- Leaks or contamination in the power steering lines
Hydraulic-related faults can often be identified by fluid stains, a whine from the pump, or noticeably harder steering, especially at low speeds.
Electric power steering (EPS) issues
EPS systems use sensors and a motor to provide steering assist. A fault in the electronics or sensors can trigger the warning light.
- Electrical faults in EPS, such as a faulty steering angle sensor or torque sensor
- Faulty EPS motor or control module
- Wiring or fuse problems affecting the EPS circuit
- Battery or charging system problems reducing electrical power to EPS
EPS faults often require diagnostic work with a scan tool to read fault codes and verify sensor calibration.
Other contributing factors
Additional issues can also trigger the warning, sometimes in combination with the main systems.
- Software/firmware calibration or diagnostic trouble codes
- Extreme temperatures affecting fluid viscosity or electronic components
- Mechanical wear or damage to steering rack, column, or linkage
- After a collision or impact that affects steering components
Manufacturers vary in how the warning is triggered, so a precise cause should be determined by a professional diagnosis.
What to do if the warning appears
If you see the steering symbol warning, take safety-first steps and plan a diagnostic appointment. The following actions help you manage the situation safely.
Before taking actions, understand that there is a risk the steering assist could fail completely. The steps below outline a practical response, but never ignore professional advice from a technician or dealership.
- Safely pull over as soon as you can do so without creating a hazard.
- If your car uses hydraulic power steering, check the fluid level and look for leaks, only if you know the correct type of fluid and safe procedures.
- Do not continue driving long distances; driving with reduced steering assist can make maneuvers harder and riskier, especially in emergencies.
- For electric power steering (EPS), a persistent warning may require turning the engine off and on again. If the light stays, proceed to a service center rather than driving aggressively.
- Check the vehicle’s battery and charging system, since EPS relies on stable electrical power.
- Schedule a professional diagnostic using the vehicle’s onboard diagnostics (OBD) and manufacturer-specific tools.
- Follow repair recommendations from a qualified technician and avoid DIY fixes that could worsen the problem.
- If the warning disappears after a restart but returns later, limit driving and seek service promptly—don’t rely on a temporary reset.
Acting promptly helps maintain steering control and prevents potential accidents. A steering assist fault is a safety feature that deserves professional attention.
Prevention and maintenance tips
Regular maintenance reduces the chances of triggering a steering warning and keeps steering feel predictable.
- Check hydraulic power steering fluid level at service intervals and fix leaks promptly
- Inspect drive belts and replace worn or cracked belts driving the hydraulic pump
- Have the power steering pump or EPS motor tested if you notice hard steering, noises, or erratic behavior
- Keep the battery and alternator in good condition to support EPS performance
- Install available software updates from the manufacturer that recalibrate steering sensors
- Inspect steering linkage, rack, and column for wear or damage, especially after impacts
- Follow the vehicle's recommended service intervals for steering and alignment checks
Proactive maintenance helps ensure steady steering feel and reduces the likelihood of unexpected warnings on the road.
Summary
The steering symbol warning signals a fault in the car’s steering assist system, which can lead to heavier steering or a total loss of assist if ignored. It can be caused by hydraulic fluid issues, mechanical wear, or faults in electric steering sensors and electronics. When the light appears, prioritize safety, perform basic checks if possible, and seek professional diagnosis promptly to restore safe steering performance.
