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2023-2025 VinFast VF8 Lower Dashboard Panel: Rattle Diagnosis and Replacement

This guide covers the common causes of rattles and electrical issues related to the lower dashboard trim panels on the 2023-2025 VinFast VF8.

5 minutes to read 2023-2025 VinFast VF8
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$50 - $100
Used OEM Price
$75 - $150
⚠️ Drivable, but... — Yes, but a loose driver's side panel should be secured immediately as it could interfere with access to the pedals.
Key Takeaways
  • This article is for the lower dashboard trim panel, NOT the trunk trim panel, which corresponds to the provided OEM part numbers.
  • The most common failure is rattling due to broken mounting clips, a widely reported type of issue for early VF8 models.
  • When buying a used panel, inspecting the integrity of all mounting clips on the back is the most critical step.
  • The driver (left) and passenger (right) side panels are not interchangeable. You must verify the correct side and ideally the OEM part number (INP30000090 or INP30000091) before purchasing.
The lower dashboard trim panel, also known as a knee bolster or hush panel, is the plastic piece located underneath the dashboard on both the driver and passenger sides. Its primary function is cosmetic, hiding unsightly wiring, the steering column, and HVAC components to create a finished interior look. It also helps to dampen noise from the engine bay and road. These panels on the VinFast VF8 integrate a footwell courtesy lamp and a small air duct to direct airflow, making them multi-function components.

What is the Lower Dashboard Trim Panel?

The lower dashboard trim panel on the 2023-2025 VinFast VF8 is the plastic cover in the driver and passenger footwells. On the driver's side, it sits below the steering column, and on the passenger's side, it's below the glove box. Beyond just being a cosmetic cover, this panel serves several important functions: it protects wiring and modules from being kicked or damaged, it helps to quiet the cabin by blocking noise, and it houses both a courtesy lamp for footwell illumination and an air duct vent for the climate control system.

Symptoms of a Failing Lower Dashboard Panel

Failure of this panel is almost always related to physical damage, improper installation, or issues with its integrated components. Given the general owner complaints about build quality and interior rattles on early VF8 models, this panel can be a common source of annoyance.

  • Rattling or Buzzing Noises: This is the most frequent complaint. A persistent rattle or buzz from the lower dash area, especially over bumps, is typically caused by broken or loose mounting clips. A single failed clip can allow the panel to vibrate against its mounting points or other components.
  • Courtesy Light Failure: The footwell light may stop working. This can be due to a burned-out bulb, a loose electrical connector, or damage to the wiring where it attaches to the panel.
  • Reduced Airflow: If the integrated air duct is cracked, dislodged, or broken, it can lead to poor or non-existent airflow to the footwell area.
  • Panel is Loose or Sagging: You may notice the panel is visibly sagging or can be easily moved by hand. This is a clear sign of broken mounting tabs and means the panel is not secure.

Warning: On the driver's side, a loose or detached panel could potentially interfere with pedal operation, creating a serious safety hazard. Secure or remove a loose panel immediately.

Known Issues, TSBs, and Recalls

As of mid-2026, there are no specific recalls or Technical Service Bulletins (TSBs) from VinFast or the NHTSA that directly address the lower dashboard trim panels. However, the VF8 has been subject to numerous recalls for other issues, and owner forums frequently mention general interior build quality concerns, including rattles and trim fitment, 🎬 Watch: Critical issues with early VinFast VF8 models making this panel a part to inspect closely.

Buying a Used Lower Dashboard Panel: What to Check

Since new aftermarket panels are not available, a used OEM part is the most cost-effective solution. Careful inspection is key to getting a good part that won't cause more problems.

1. Inspect All Mounting Clips (Most Important)

This is the single most critical check. Flip the panel over and carefully examine every mounting clip and tab. Ensure they are all present and not cracked, bent, or showing stress marks (whitish lines in the plastic). A panel with even one broken clip will not sit flush and is almost guaranteed to rattle.

2. Check the Courtesy Lamp and Connector

Inspect the courtesy light housing for cracks. Ensure the electrical connector is intact and the pins inside are not bent or corroded. If possible, test the bulb. If the lamp assembly is damaged, you may have to transfer your old one, if it's still good.

3. Examine the Air Duct

Look over the integrated air duct portion of the panel. Check for any cracks or breaks, especially where it connects to the main panel. A broken duct will leak air and be ineffective.

4. Verify Compatibility and Part Numbers

The driver's side (left) and passenger's side (right) panels are not interchangeable. They are mirror images of each other. Before buying, confirm you are purchasing the correct side for your needs. The known OEM part numbers are INP30000090 and INP30000091. Unfortunately, public information does not definitively state which number corresponds to which side. It is best to find the part number molded into the back of your original part to ensure a perfect match.

Pro Tip: Buying a used OEM panel is often a better choice than waiting for a hypothetical aftermarket version. The original parts are guaranteed to fit correctly and match the color and texture of your vehicle's interior, which is not always the case with aftermarket plastic trim.

Replacement Guide (Difficulty: 1/5)

Replacing this panel is a straightforward DIY job that typically requires no special tools, although a plastic trim removal tool can prevent scratches.

  1. Locate Fasteners: The panel is primarily held in by plastic clips, but there may be one or two screws or plastic push-pins securing it. Check along the bottom edge and near the firewall.
  2. Remove the Panel: Once any screws are removed, use a trim removal tool or your fingers to carefully pry the panel downwards, starting from one edge. You will hear the clips pop as they release.
  3. Disconnect Electrics: Before fully removing the panel, reach behind it and locate the electrical connector for the courtesy lamp. Press the tab on the connector and pull it apart.
  4. Install the New Panel: Connect the courtesy lamp on the new panel. 🎬 See: DIY footwell lighting installation guide Align the panel's clips with the corresponding holes in the dashboard structure. Give it a firm, even push to snap all the clips into place. Reinstall any screws you removed.

Cost Comparison

Part Type Estimated Price Range Notes
New OEM $175 - $300 Pricing from VinFast dealers is not widely available and can be high. Must be special ordered.
New Aftermarket Not Available Currently, no aftermarket manufacturers produce this specific panel for the VF8.
Used OEM $75 - $150 The best value. Price depends on condition, but ensures perfect OEM fit and finish.
Shop Labor $50 - $100 Typically 0.5 hours of labor at an independent shop. Many shops may bundle this into a diagnostic fee for a rattle.

Frequently Asked Questions (FAQ)

Are the driver and passenger side lower dash panels interchangeable?

No, they are not. They are specific to the left and right sides of the vehicle and cannot be swapped.

My panel is rattling. Do I have to replace it?

Not necessarily. If the panel itself isn't cracked and the mounting tabs aren't broken, you can often fix a rattle. Remove the panel and apply strips of felt tape or thin foam to the back of the panel where it makes contact with the dashboard structure. 🎬 Watch: How to find and fix dashboard noises This can cushion it and stop the noise.

What tools do I need for the replacement?

Often, you can do this job with just your hands. However, a plastic trim removal tool set is highly recommended to avoid scratching or damaging the panel or surrounding dashboard. You may also need a Phillips head screwdriver if your panel is secured with screws.

How do I know which part number to order, INP30000090 or INP30000091?

The best way to be certain is to remove your original panel and look for a part number molded into the plastic on the back. This will guarantee you order the correct replacement for your specific side.

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3 critical issues with early VinFast VF8
3 critical issues with early VinFast VF8

Technical Specifications

OEM Part Numbers: INP30000090 INP30000091

Material: Molded Plastic Integrated Components: Courtesy Lamp, Air Duct Vent

Wrenchy
Article researched & written by
Go-Parts' AI research assistant. Every article is backed by live web research, verified OEM data, and real technician knowledge — so you get accurate, up-to-date information you can trust.
Meet Wrenchy → Updated Jul 21, 2026

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.

Year Coverage
This article covers the Trunk Trim Panel for:
  • VinFast VF8: 202320242025
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