What does service power steering mean on a Chevy Trax?
The warning indicates a fault in the Trax’s electric power steering system (EPAS). When this message appears, steering assist may be reduced or unavailable, making steering heavier and more effortful, especially at low speeds. It’s a safety concern that should be addressed promptly.
Power steering in the Trax is electric rather than hydraulic. A problem in the EPAS motor, steering angle sensor, wiring, or the vehicle’s control modules can trigger the warning. Below, we explain what the warning means, common causes, symptoms to watch for, and what to do if you see it.
What the warning means for your drive
The EPAS warning signals a fault in the system that helps you steer with less effort. When the EPAS system detects a fault, it may reduce or disable assist to prevent unsafe operation. Depending on the fault and your speed, you could experience notably heavier steering or intermittent loss of assist.
To help you understand why this happens, here are the most common reasons a “Service Power Steering” message might appear on a Chevy Trax and what to check.
Common causes of the message include:
- Weak or failing EPAS motor or steering torque sensor
- Electrical faults such as damaged wiring or loose connectors to the EPAS module
- Faults in the CAN bus communication between steering, engine, and body control modules
- Software glitches or outdated EPAS firmware
- Low battery voltage or charging system problems that reduce power to the EPAS system
- A failing steering column component or rack
While some causes are minor and solvable with a software update or battery check, others point to a hardware fault that requires professional diagnosis. If the warning light stays on or steering feels abnormal, stop safely and seek service as soon as possible.
What to do if you see this warning
To handle this warning safely, follow these steps in order. They are designed to reduce risk and help identify the problem without compromising your safety.
- Safely pull over and, if possible, turn off and restart the engine to see if the message clears.
- Check for accompanying warning lights (ABS, battery, check engine) that might point to electrical or charging system issues.
- Inspect accessible battery terminals for corrosion or loose connections and ensure the battery is holding a charge.
- Check relevant fuses and look for any obvious wiring damage near the EPAS components.
- If you have an OBD-II scanner, read the stored codes and note any EPAS-related codes and freeze frame data.
- Do not drive aggressively or at high speeds if the steering feels unstable; if possible, tow the vehicle to a service facility.
- Have the system tested by a qualified technician who can diagnose EPAS motor, sensor, wiring, or control-module faults and update software if needed.
These steps can help you assess safety and begin diagnosis. If the warning persists after a restart or the steering remains heavy, arrange professional service promptly.
Understanding the Trax power steering system
The Chevy Trax uses electric power-assisted steering (EPAS). An electric motor provides steering assist under the direction of a control module, guided by inputs from a torque sensor, wheel speed sensor, and other vehicle controllers. Because the system relies on electronics and sensors rather than hydraulic fluid pressure, electrical issues, sensor faults, or software glitches can trigger a warning and affect steering feel.
Common symptoms of an EPS fault
- Heavy or “dead” feeling steering, especially at low speeds
- Erratic or intermittent steering assist
- Ephemeral or persistent “Service Power Steering” warning
- Noticeable wheel vibrations or a whine/noise from the steering column
- Warning lights related to electrical or CAN bus faults
Understanding these signs can help you decide when to seek urgent service versus scheduling a routine diagnostic check.
Summary
The “Service Power Steering” message on a Chevy Trax signals a fault in the electric power steering system (EPAS). It can result from electrical or sensor faults, wiring issues, software problems, or a failing EPAS motor. While some issues may be resolved with a simple reset or software update, others require professional diagnosis and repair. If you notice heavy steering, reduced or no steering assist, or the warning persists, prioritize safety and arrange timely service.
Is it expensive to fix power steering?
Yes, fixing power steering can be expensive, with the total cost varying significantly depending on the specific repair needed, from a low of about $10 for adding fluid to an average of $500-$900 or more for a full pump replacement. Factors like your car's make and model, whether you DIY or hire a mechanic, and the type of parts used all influence the final price.
This video explains the average cost for a power steering pump replacement: 56sLearnToDIY360YouTube · Dec 9, 2024
Factors affecting the cost
- Power steering pump replacement: This is one of the most common major repairs and can cost between $500 and $900, depending on your vehicle and the shop.
- Power steering rack replacement: A more extensive repair that can cost anywhere from $500 to over $1,200, including parts and labor.
- Hose replacement: This is generally less expensive, typically costing between $60 and $300.
- DIY vs. professional repair: Replacing a part yourself can save you hundreds of dollars in labor, but requires specific skills and tools.
- Parts cost: The price of parts varies by brand (OEM vs. aftermarket) and your vehicle's make and model. Luxury or large vehicles often have more expensive parts.
- Labor costs: Shop rates can vary significantly based on your location and the specific mechanic.
You can watch this video to learn how to replace power steering fluid: 31sTalkingTechTrendsYouTube · Apr 21, 2025
What you can do
- For simple issues: Check the fluid level and top it off yourself for a low cost of about $10 to $20. A power steering flush can also be a more affordable solution than a full component replacement.
- For more serious issues: Take your car to a professional for a proper diagnosis. While the cost of major repairs can be high, it's crucial for safety to address them promptly.
What does it mean when my car says service power steering?
It means something's not quite right with the system that keeps you safely in control. Ignoring this light is a recipe for trouble, as proper steering control is absolutely vital for safe driving. When this light illuminates, it could indicate a few different culprits. The most common is low-power steering fluid.
Does the Chevy Trax have power steering fluid?
Your Chevrolet Trax will be happy to know that the search for the right Power Steering Fluids you've been looking for is over! Advance Auto Parts has 2 different Power Steering Fluids for your vehicle, ready for shipping or in-store pick up.
Can you drive with service power steering?
Yes, technically you can but not for long because it will become increasingly more difficult to steer and extremely dangerous. Your best bet is to have a qualified technician assess your vehicle as soon as possible if you suspect a power steering leak.
