2023-2024 VinFast VF8 Steering: The ADAS Recall and Mechanical Shaft Diagnosis
This guide explains the critical software recall causing dangerous steering behavior and details how to diagnose a true mechanical steering shaft failure.
- The most critical steering issue is a software recall (NHTSA 25V559) causing dangerous, unexpected steering movements; this requires a free dealer software update.
- A mechanical failure of the shaft itself will cause symptoms like clunking noises, looseness, or binding, which are different from the software recall issue.
- When buying a used shaft, the most important check is to ensure the U-joints move smoothly without any play or binding.
- After replacement, the steering angle sensor must be recalibrated with a scan tool for safety systems to function correctly.
Known Issues, Recalls, and Technical Service Bulletins (TSBs)
The most significant and dangerous steering-related issue for the 2023-2024 VinFast VF8 is not a mechanical failure of the steering shaft, but a serious software flaw that prompted a major safety recall.
NHTSA Recall 25V559: Unexpected Steering Movement
Safety Recall: VinFast recalled 6,314 VF 8 vehicles (model years 2023-2025) for a defect in the Advanced Driver-Assistance System (ADAS). The Lane Keep Assist (LKA) feature can activate improperly, particularly during wide or sweeping turns. This can cause the steering wheel to move suddenly and with significant force, making it difficult for the driver to override and maintain control of the vehicle. This unexpected steering input dramatically increases the risk of a crash.
The official cause is an error in the software's calibration of the ADAS torque ratios. The remedy is a free software update performed by a VinFast service center, which refines the system to provide smoother, more consistent steering behavior and makes it easier for the driver to override the system. If you own one of these vehicles, it is critical to have this recall service performed immediately.
Other Owner-Reported Steering & Column Issues
In addition to the major recall, some VF8 owners have reported other electrical issues related to the steering column and controls on forums. These are separate from the ADAS recall and from mechanical shaft failure:
- Inoperative Steering Wheel Buttons: Some owners have found all buttons on the steering wheel suddenly stop working. This has been identified as a potential software bug in the steering wheel control module. 🎬 Watch this quick fix for unresponsive steering wheel buttons.
- Failed Adjustment Motor: At least one owner has reported a failure of the power tilt and telescoping adjustment motor for the steering wheel.
- Poor Steering Feel: Some drivers have criticized the VF8's steering as feeling vague, overly sensitive, and disconnected from the road, which can reduce driver confidence.
Symptoms of Failure
It is important to distinguish between the software recall symptoms and the signs of a true mechanical failure of the steering shaft.
Symptoms of Mechanical Steering Shaft Failure
As these vehicles age, physical wear on the steering shaft may occur. These symptoms point to a problem with the shaft's U-joints or splines, not the vehicle's software.
- Clunking or Clicking Noise: A distinct 'clunk' or 'click' sound that can be heard and felt through the steering wheel when turning, especially when the vehicle is stationary or moving slowly. This is often the first sign of a worn U-joint in the shaft.
- Excessive Steering Play: A feeling of looseness in the steering wheel. You may be able to turn the wheel an inch or more in either direction before the front wheels begin to respond.
- Binding or Notchy Steering: The steering wheel feels like it's catching or binding at certain points as you turn it. It won't feel smooth throughout its rotation. 🎬 See a video guide on bad steering shaft symptoms. This indicates a U-joint is seizing up.
- Wheel Not Returning to Center: After making a turn, the steering wheel does not return to the straight-ahead position on its own as easily as it should.
Buying a Used Steering Shaft
Given the newness of the 2023-2024 VinFast VF8, finding a used steering shaft may be difficult. However, if you do locate one, a thorough inspection is critical for this safety-related part. A high-quality, low-mileage used OEM part is a reliable alternative to a new dealer part.
- Inspect the U-Joints: This is the most critical check. Hold each end of the shaft and try to move the U-joints. They should pivot smoothly and freely in all directions with no notchiness or binding. There should be absolutely no play or clunking when you try to twist the joint. A stiff or loose U-joint means the shaft is bad.
- Check the Collapsible Section: Carefully inspect the collapsible portion of the shaft. Look for any signs of compression, impact damage, or heavy rust. A shaft from a vehicle involved in a front-end collision is unsafe and must not be used.
- Verify the Part Number: Ensure the part number matches what is required for your vehicle. The known OEM part number is CHS30004044.
- Examine the Splines: Check the splined ends that connect to the steering column and steering rack. The splines should be clean, sharp, and free of any stripping or damage.
Cost Breakdown
Pricing for the VinFast VF8 steering shaft is not widely available, so these costs are estimates based on general industry pricing for similar components.
| Part/Service | Estimated Cost | Notes |
|---|---|---|
| New OEM (Dealer) | $500 - $1000+ | Pricing is not publicly listed. This is a dealer-only part, and costs can be high. |
| New Aftermarket | Not Available | Aftermarket options for this specific vehicle are not currently available. |
| Used OEM | $250 - $500 | Represents a significant savings but availability is extremely limited. Price depends on mileage and condition. |
| Shop Labor | $200 - $550 | Labor typically runs 2-3 hours. Rates vary from $100-$180+ per hour depending on the shop. |
Frequently Asked Questions (FAQ)
Is the steering recall dangerous?
Yes. The issue described in NHTSA recall 25V559 can cause the vehicle to make sudden, forceful steering inputs that are difficult for the driver to control, significantly increasing the risk of a crash. It is critical to have the free software update performed by a VinFast service center immediately.
Is a clunking noise when I turn always the steering shaft?
No. While the steering shaft is a common cause, clunking noises can also come from other suspension or steering components like worn ball joints, tie rod ends, or strut mounts. A thorough diagnosis is needed to pinpoint the exact source of the noise.
Can I just replace the U-joint on the shaft?
Generally, no. On modern vehicles like the VF8, the U-joints are not designed to be serviced separately. The entire steering shaft assembly is replaced as a single unit.
Does the steering system need calibration after replacing the shaft?
Yes. The steering column contains a steering angle sensor that is critical for the function of the stability control and ADAS systems. After replacing a steering shaft or column, the steering angle sensor must be recalibrated using a professional-grade scan tool to ensure 🎬 Watch how to calibrate a steering angle sensor. these safety systems work correctly.
Helpful Videos
Technical Specifications
OEM Part Numbers: CHS30004044
The steering shaft assembly includes at least one universal joint (U-joint) and a collapsible section for crash safety.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- VinFast VF8:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Known Issues, Recalls, and Technical Service Bulletins (TSBs)
- NHTSA Recall 25V559: Unexpected Steering Movement
- Other Owner-Reported Steering & Column Issues
- Symptoms of Failure
- Symptoms of Mechanical Steering Shaft Failure
- Buying a Used Steering Shaft
- Cost Breakdown
- Frequently Asked Questions (FAQ)
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