Symptoms
- Steering wheel icon lit on the dash
- Steering feels noticeably heavier, especially parking or at low speed
- Possible whining noise (hydraulic systems) when turning
Likely causes
- CommonLow power steering fluid (hydraulic systems)A leak can starve the pump of fluid, causing it to lose assist.
- CommonFailing electric power steering motor or sensorCommon on newer cars with electric rather than hydraulic steering assist.
- PossibleFailing power steering pump or belt (hydraulic systems)Belt slipping or pump wear reduces assist pressure.
- Less commonTorque sensor fault in the steering columnSends incorrect data to the electric assist system.
What to do
- Notice how heavy the steering feels, especially compared to normal driving.
- On hydraulic systems, check the power steering fluid reservoir level.
- Check the serpentine belt for looseness or damage if the car has hydraulic steering.
- Reduce speed and be prepared for heavier steering effort, especially in parking lots or tight turns.
- Have the code read at a shop to identify the specific electric or hydraulic fault.
- Top off or replace fluid as needed, or have the pump, belt, or electric motor repaired based on findings.
Tools and parts
Power steering fluidSearch: “power steering fluid type for your car”
When to call a pro
See a mechanic promptly, since a sudden total loss of steering assist can be startling and unsafe in traffic.
Safety
Use caution
Heavier steering can be dangerous in tight spaces or during quick maneuvers; drive extra cautiously and slowly until repaired.