2016-2021 Honda Civic Steering Problems: Fixing the 'Sticky' Feeling in Your EPS

Understanding the 2016-2021 Civic's Electric Power Steering (EPS)

If you're looking for a power steering pump or fluid reservoir on your 10th generation Civic, you won't find one. This vehicle is equipped with an Electric Power Steering (EPS) system. The key component is a powerful electric motor attached to the steering rack and pinion gearset, located low in the front of the car. This motor, along with its electronic control unit, is what can fail, leading to steering problems. Unlike older hydraulic systems that can fail gradually with leaks, EPS failures are often sudden and electronic in nature.

Symptoms of a Failing EPS System

Diagnosing an EPS problem can be tricky because other issues, like a weak battery, can cause similar symptoms. Always check your battery and charging system first before assuming the steering rack is bad.

1. 'Sticky' or 'Notchy' Steering at Highway Speeds

This is the most widely reported issue for this Civic generation. Drivers describe a sensation where the steering wheel 'sticks' in the center position while driving at highway speeds. It requires a small but noticeable amount of extra force to 'break free' and make a minor correction, which can lead to overcorrecting and a feeling of instability. This issue does not always trigger a warning light but is a significant safety concern. An NHTSA investigation into this problem on later models found it was caused by improper manufacturing of the steering gearbox's worm wheel, which prevents grease from properly lubricating the gears.

2. Power Steering Warning Light (EPS Light)

A yellow warning light on your dashboard showing a steering wheel with an exclamation mark indicates a fault in the EPS system. When this light is on, the system has detected a problem and will likely disable power assist, making the steering very heavy and difficult to turn, especially at low speeds. The light can be triggered 🎬 Watch how to diagnose a check power steering system warning. by a fault in the motor, the control module, a sensor, or even a wiring issue.

3. Sudden Loss of Power Assist / Heavy Steering

In some cases, the power steering assist may fail without warning, making the steering wheel extremely difficult to turn. This can happen intermittently or permanently. This is often caused by an internal failure in the EPS motor or its control unit, but can also be triggered by low voltage from a failing battery or alternator.

4. Clicking or Grinding Noises

While less common than the 'sticky' feeling, some drivers report clicking or grinding sounds when turning the wheel. A clicking noise could be related to a small internal coupler inside the motor assembly failing. A grinding noise could indicate a mechanical problem within the rack and pinion gears themselves.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

• NHTSA Recall 18V-395 (Campaign Number): Honda recalled certain 2017-2018 Civic and CR-V models because a magnet controlling the steering torque sensor could become dislodged. This could cause the steering to pull to one side or lead to a loss of power assist.
• 'Sticky Steering' Investigation: The National Highway Traffic Safety Administration (NHTSA) opened an investigation into 'sticky steering' complaints. While the investigation and subsequent recalls primarily focused on 2022-2023 models, owners of 2021 models have reported identical symptoms. The cause was identified as a manufacturing defect in the steering gearbox.
• Potential Software Glitch (TSB 24-119): Some sources indicate Honda may have issued a technical service bulletin related to a software glitch in the EPS control module for 2016-2021 models that could cause a sudden loss of power steering assistance. A software update at a dealership may resolve some intermittent issues.
• Rodent Damage: The wiring harnesses in many modern cars, including the Civic, use a soy-based insulation that can attract rodents. Chewed wires leading to the EPS rack are a known cause of sudden power steering failure and warning lights.

Buying a Used 2016-2021 Civic EPS Rack Assembly

Buying a used EPS rack can save you over a thousand dollars, but compatibility is extremely complex. Getting the wrong part will result in it not working at all. It is highly recommended to purchase the complete steering rack assembly, which includes the motor, control unit, and inner tie rods, rather than just the motor itself.

CRITICAL: Verifying Compatibility

You cannot identify the correct rack by sight alone. The internal programming is specific to the vehicle's features. Follow these steps:

1. Identify Your Vehicle's Exact Specs: You must know the Year, Body Style (Sedan, Coupe, or Hatchback), Trim (LX, EX, Sport, EX-L, etc.), and Engine (2.0L or 1.5L Turbo).
2. Check for Honda Sensing: Determine if your car has the 'Honda Sensing' package (also called the pre-crash safety system). The easiest way to check is to look at the front windshield near the rearview mirror. If you see a large black plastic module with a camera lens pointing forward, you have Honda Sensing. You will also have buttons on the right side of your steering wheel for adaptive cruise control (ACC) and lane keeping assist (LKAS).
3. Match OEM Part Numbers: This is the only guaranteed way to ensure compatibility. The part number on the used rack MUST match the original part number for your specific vehicle. Part number prefixes often indicate fitment; for example, 'TGG' parts are commonly for Hatchbacks, while 'TBA' parts are for Sedans.

What to Inspect on a Used Part

• Connectors and Wiring: Inspect the main electrical connectors for any bent pins, corrosion, or cracks. Check the wiring harness pigtail for any signs of cuts, fraying, or rodent damage.
• Physical Damage: Look for cracks, dents, or heavy corrosion on the aluminum housing of the motor and rack.
• Boots and Seals: If buying the full assembly, ensure the rubber boots covering the inner tie rods are not torn or leaking grease. Damaged boots allow dirt and water to enter the rack, causing rapid failure.

Replacement Overview & Mandatory Calibration

Replacing the EPS rack is a difficult job rated 4 out of 5 for difficulty. It typically requires lowering the front subframe to gain access, making it a challenging task for most DIY mechanics.

Cost to Replace a 2016-2021 Civic Power Steering Rack

Prices can vary significantly based on the part source and local labor rates.

Frequently Asked Questions (FAQ)