what does p/s mean in cars

[SanFelicity]

In cars, P/S stands for Power Steering. It’s a system that uses hydraulic or electric power to assist the driver in turning the steering wheel, making it significantly easier to maneuver the vehicle, especially at low speeds like during parking.

The core function of power steering is to reduce the physical effort required to steer. Before this technology was commonplace, steering a car, particularly a heavy one, demanded considerable arm strength. Modern systems use either a hydraulic pump driven by the engine or an electric motor to provide this assistance. The P/S warning light on your dashboard is critical; if it illuminates, it indicates a problem with the power steering system, which could result in a sudden increase in steering effort and become a safety hazard.

Here's a quick comparison of the two main types:

Power Steering Type	How It Works	Key Characteristics
Hydraulic Power Steering (HPS)	Uses a pump, driven by the engine, to circulate hydraulic fluid. Pressure from this fluid assists the steering gear.	Provides a very connected, "road-feel" sensation. Requires periodic fluid changes and is less fuel-efficient due to the constant load on the engine.
Electric Power Steering (EPS)	Uses an electric motor to provide assistance directly to the steering column or rack.	More fuel-efficient, as it only uses power when steering. Allows for advanced features like lane-keeping assist and self-parking. Modern cars predominantly use EPS.

If your P/S light comes on, the car is still drivable, but you should expect the steering to be much heavier. Have the system diagnosed by a professional as soon as possible. Common issues range from low fluid levels in hydraulic systems to sensor failures in electric ones.

[SanRafael]

It means power steering. Basically, it’s what makes turning the wheel easy instead of a huge workout. If you see a light on your dash that says P/S, pay attention—it means that power assist might be failing. Your steering will get heavy real fast, so get it checked out. It’s a standard feature on just about everything now, but old-timers might remember when you actually had to muscle cars around a parking lot.

[VanCole]

You'll typically see "P/S" in two places: on a button or on your dashboard as a warning light. On a button, it might control the level of power steering assist, like a sport mode that makes the steering feel heavier. As a warning light, it's your car telling you there's a fault. The system could be operating with reduced assistance or might fail completely. Don't ignore it; the sudden loss of power steering can be startling and dangerous, especially in an emergency maneuver.