2020-2022 Lexus RC F Trunk Trim Panel: Chasing Rattles and Replacing the Liner
This guide covers the common causes of trunk rattles, damage inspection, and replacement for the trunk lid liner on the 2020-2022 Lexus RC F.
- The most common issue is rattling, usually caused by broken or loose plastic clips, not a failure of the panel itself.
- When buying a used panel, the most critical inspection is of the clip mounting points on the back; cracks here will prevent a secure fit.
- There are no recalls or TSBs for this specific part. Issues are purely cosmetic or related to fitment.
- Replacement is a simple DIY job requiring only a plastic trim removal tool. Always have extra clips on hand as they are prone to breaking.
Symptoms of a Failing Trunk Trim Panel
As a static cosmetic part, the trunk trim panel does not mechanically 'fail' in the traditional sense. Instead, problems are related to physical condition and fitment. The most common complaints are noise and appearance issues.
Rattling or Buzzing Noises
A persistent rattling, buzzing, or creaking sound from the rear of the vehicle is the most frequent issue that leads owners to inspect the trunk trim. While the Lexus RC platform is generally well-built, interior rattles can develop over time. These sounds are often more noticeable on rough roads or when playing music with heavy bass. The noise typically originates from:
- Broken or Loose Clips: The plastic clips holding the panel to the trunk lid can become brittle and break, or simply work themselves loose. This allows the panel to vibrate against the metal trunk lid.
- Improper Fitment: If the panel has been removed previously for service (like wiring repair or bodywork), it may not have been reinstalled correctly, leading to gaps and movement.
- Contact with Other Components: The panel may be rattling against the trunk torsion rods, the emergency release handle, or wiring harnesses behind it.
Visible Damage and Wear
- Cracks and Gouges: Loading or unloading sharp or heavy items can easily crack, scratch, or gouge the plastic or fiberboard backing of the panel.
- Stains and Discoloration: Spills from liquids in the trunk can lead to permanent stains on the panel's carpeted surface.
- Sagging or Warping: High heat and humidity can cause the panel's backing board to warp over time, resulting in a sagging or poor-fitting appearance.
Pro Tip: Before blaming the trim panel for a rattle, completely empty your trunk. Remove the floor mat, spare tire tools, and any personal items. A loose jack or lug wrench is a common and often overlooked source of trunk noise.
Known Issues, TSBs, and Recalls
As of this writing, there are no recalls or Technical Service Bulletins (TSBs) issued by Lexus specifically for the trunk trim panel on the 2020-2022 RC F. Searches of the National Highway Traffic Safety Administration (NHTSA) database show recalls for this vehicle related to an incorrect tire information label and a faulty fuel pump, neither of which involves interior trim.
While not specific to the trunk panel, TSB L-SB-0004-22 was issued for a musty odor caused by water intrusion in some Lexus models. If you notice a damp or musty smell in the trunk, inspect the trunk seals for leaks, as moisture can damage the trim panel's backing board.
Buying a Used 2020-2022 RC F Trunk Trim Panel
Since this is a cosmetic part, a used OEM panel is an excellent way to save money over a new part from the dealer. Aftermarket versions of this specific panel are generally not available. Follow this checklist when buying a recycled part:
1. Inspect All Mounting Points
This is the most critical check. Flip the panel over and carefully inspect every hole where a mounting clip is inserted. Look for cracks, stress marks (white lines in the plastic), or completely broken tabs. A panel with even one broken mounting point will likely not sit flush and will cause the very rattles you're trying to fix.
2. Check for Physical Damage
Examine the front (carpeted) side for deep scratches, stains, or tears. On the back, look for cracks in the main body of the panel or any signs of water damage, such as swelling or dark, discolored areas on the fiberboard backing.
3. Verify the Part Number
The primary OEM part number for the 2020-2022 Lexus RC F is 64717-24170-C0. This is typically for the standard black trim. There may be other variations, so always match the part number from your original panel if possible. Do not assume a panel from a standard RC model will fit an RC F, as trim and features can differ.
4. Ask About Included Hardware
Confirm if the used panel comes with the plastic retaining clips. Most of the time, it will not. These clips are fragile and often break upon removal. It's wise to assume you will need to buy a new set of clips regardless.
Replacement Difficulty & Labor
- Difficulty: 1/5 (Beginner)
- Estimated Time: 0.5 hours
- DIY Feasible: Yes
Replacing the trunk trim panel is a straightforward job suitable for any DIYer. The only tools required are a plastic trim removal tool set and possibly a small flathead screwdriver.
The process involves carefully prying out the plastic clips around the perimeter of the panel. Start at one corner and work your way around. Once all clips are disengaged, the panel will come free. Installation is the reverse of removal: simply align the panel and press firmly over each clip location until it snaps into place.
Warning: Always use plastic trim removal tools. Using a metal screwdriver will scratch the paint on the trunk lid and can easily crack the plastic trim panel.
Cost Comparison
Prices for the trunk trim panel can vary significantly between new and used options. Aftermarket replacements are typically not manufactured for this specific part.
| Part Source | Estimated Cost |
|---|---|
| New OEM | $340 - $485 |
| Used OEM | $150 - $250 |
| New Aftermarket | Not Available |
| Shop Labor | $50 - $100 |
Frequently Asked Questions (FAQ)
Why is my Lexus RC F trunk rattling?
Rattles from the trunk area are common and are usually caused by loose items, the spare tire tool kit, or loose/broken plastic clips on the trim panels. Check for loose items first, then inspect the clips holding the trunk lid liner and other surrounding trim pieces.
Will a trunk trim panel from a standard Lexus RC fit my RC F?
It is not recommended. While they may look similar, the RC F often has specific trim variations. Always verify compatibility by matching the OEM part number (64717-24170-C0) from your original panel to the replacement part.
What does the '-C0' at the end of the part number mean?
The suffix on Lexus part numbers, like '-C0', is a color code. For interior trim, 'C0' typically designates the color Black. Always ensure the color code matches your vehicle's interior.
How do I remove the trunk trim panel without breaking the clips?
Use a dedicated plastic trim removal tool kit. Slide the tool under the edge of the panel near a clip location and gently pry up. Try to apply pressure as close to the clip as possible. Even with care, old clips can be brittle and may break. It's a good idea to have a few replacement clips on hand before you start the job; they are inexpensive and available from the dealer or online.
Technical Specifications
OEM Part Numbers: 64717-24170-C0 6471724170C0
Molded fiberboard or plastic backing with carpeted surface. Attaches with plastic push-in style clips.
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.
- Lexus RC F:
- 🛍️ Shop This Part
- Symptoms of a Failing Trunk Trim Panel
- Rattling or Buzzing Noises
- Visible Damage and Wear
- Known Issues, TSBs, and Recalls
- Buying a Used 2020-2022 RC F Trunk Trim Panel
- 1. Inspect All Mounting Points
- 2. Check for Physical Damage
- 3. Verify the Part Number
- 4. Ask About Included Hardware
- Replacement Difficulty & Labor
- Cost Comparison
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off