The 2022 Toyota Corolla continues its long-standing reputation for reliability, efficiency, and comfort. While most people focus on the engine, infotainment system, or fuel economy, one often-overlooked part plays a crucial role in both function and aesthetics — the trunk plastic.
The 2022 Toyota Corolla trunk plastic refers to the molded panels, liners, and trim pieces that cover the inside of the trunk area. These components don’t just serve a cosmetic purpose; they protect the metal structure, conceal wiring, reduce noise, and help maintain a clean, organized cargo space.
A well-maintained trunk plastic panel enhances the Corolla’s overall look and resale value. When damaged, cracked, or faded, it can make the trunk appear older than it is — which is why understanding this part is essential for owners who want to keep their car in top condition.
In this guide, you’ll learn about the types of trunk plastics used in the 2022 Toyota Corolla, their function, common issues, how to remove and replace them, and expert tips on care and upgrades.
In This Article
The Function of the Trunk Plastic Panel
The trunk plastic panel in the 2022 Toyota Corolla is designed to protect, insulate, and organize. It’s more than a simple decorative piece — it’s an engineered component made to improve durability, cleanliness, and cabin comfort.
Main Functions of the Corolla’s Trunk Plastic
- Protection: Shields the metal trunk walls from scratches, dents, and corrosion.
- Noise Reduction: Minimizes road and vibration sounds through molded insulation layers.
- Cable Concealment: Hides electrical harnesses and trunk latch wiring for a neat finish.
- Structural Support: Keeps the spare tire compartment and trunk floor panels stable.
- Aesthetic Appeal: Gives a uniform, finished look that matches Toyota’s interior design standards.
Material Composition
The 2022 Toyota Corolla trunk plastic is primarily made from ABS (Acrylonitrile Butadiene Styrene) and polypropylene. These materials are known for their:
- High impact resistance — perfect for absorbing bumps and impacts from luggage.
- Lightweight durability — keeping overall vehicle weight low for better fuel economy.
- UV resistance — reducing fading and discoloration under sunlight exposure.
| Feature | ABS Plastic | Polypropylene (PP) |
| Strength | High impact resistance | Moderate flexibility |
| Weight | Light | Very light |
| Temperature Resistance | Excellent | Good |
| Common Use in Corolla | Cargo sill, trunk liner | Side panel trim, floor cover |
By combining these materials, Toyota ensures the trunk area stays functional, resilient, and visually consistent throughout the life of the vehicle.
Common Types of Trunk Plastic in the 2022 Toyota Corolla
The 2022 Corolla trunk plastic is made up of several components that fit together seamlessly. Each piece has a specific role in protecting and organizing the cargo area.
Main Types of Trunk Plastic Components
- Trunk Floor Plastic Cover
- Located over the spare tire compartment.
- Designed to provide a flat surface and easy access to the spare wheel.
- Usually made of textured polypropylene for grip and durability.
- Located over the spare tire compartment.
- Trunk Side Trim Panels
- Installed on both left and right sides of the trunk.
- Protect wiring channels and act as impact barriers.
- Feature pre-cut access points for taillight maintenance.
- Installed on both left and right sides of the trunk.
- Rear Cargo Sill Protector (Plastic Threshold Plate)
- Positioned at the trunk entrance where items are loaded.
- Protects the paint and bumper from scratches and dents.
- Typically made of tougher ABS plastic for enhanced resistance.
- Positioned at the trunk entrance where items are loaded.
- Trunk Lid Inner Trim Panel
- Covers the inner side of the trunk lid.
- Provides insulation and hides wiring for the trunk latch and lights.
- Often includes a grab handle or emergency release lever.
- Covers the inner side of the trunk lid.
Design and Fitment Details
Toyota engineered these components to fit precisely with snap-in clips and fasteners, minimizing rattles and ensuring easy removal for maintenance. The textured black finish complements the Corolla’s modern aesthetic while resisting fingerprints and scuff marks.
Expert Tip: Keeping the trunk plastics intact prevents dust and debris from collecting inside the trunk cavity, which can lead to moisture buildup and hidden rust over time.
Typical Issues with 2022 Toyota Corolla Trunk Plastic
Even though Toyota uses high-quality materials, the trunk plastic in the 2022 Corolla isn’t immune to wear and tear. Over time, daily use, heavy cargo, and environmental exposure can lead to a variety of cosmetic and functional problems. Understanding these issues early can help prevent costly repairs later.
Most Common Trunk Plastic Problems
- Scratches and Scuff Marks
- Caused by sliding luggage, grocery bags, or tools.
- Often appear on the cargo sill protector or trunk floor cover.
- Can be reduced with protective films or rubber mats.
- Caused by sliding luggage, grocery bags, or tools.
- Cracks or Broken Clips
- Result from forcing panels during cleaning or removal.
- Common in colder climates where plastic becomes brittle.
- Broken clips may cause rattling or loose fitment.
- Result from forcing panels during cleaning or removal.
- Fading or Discoloration
- Exposure to direct sunlight can dull the plastic’s color.
- Harsh cleaning chemicals may accelerate fading.
- Using UV protectant sprays helps maintain the original finish.
- Exposure to direct sunlight can dull the plastic’s color.
- Warping or Loose Fitment
- Happens when the trunk plastic is not reinstalled correctly.
- May interfere with trunk closure or cause vibration noise.
- Happens when the trunk plastic is not reinstalled correctly.
- Moisture or Mold Under Plastic Panels
- Caused by water entering through tail light seals or weatherstripping.
- Leads to odor or corrosion beneath the trim.
- Caused by water entering through tail light seals or weatherstripping.
| Issue Type | Typical Cause | Recommended Fix |
| Scratches/Scuffs | Cargo friction | Plastic polish or replacement sill plate |
| Broken Clips | Improper removal | Replace clips or use OEM retainers |
| Fading | UV exposure, cleaners | Apply UV protectant spray |
| Loose Panels | Poor installation | Refit with correct fasteners |
| Moisture Buildup | Seal leakage | Dry area and replace seals if needed |
Pro Tip: If you hear a faint rattling sound when driving over bumps, it could be a sign that one of your 2022 Corolla trunk plastic clips has loosened. Reinstalling the panel securely often solves the problem instantly.
How to Remove the 2022 Toyota Corolla Trunk Plastic Safely
Removing the trunk plastic panels in a 2022 Toyota Corolla isn’t difficult, but it requires patience and the right tools to avoid breaking clips or damaging the panels. This process is often done when replacing a damaged part, repairing wiring, or accessing the rear lights.
Tools You’ll Need
- Plastic pry tools (to prevent scratches)
- Phillips screwdriver
- 10mm socket wrench
- Trim clip remover
- Clean cloth or microfiber towel
Step-by-Step Removal Process
- Empty the Trunk
Remove all items, mats, and the spare tire cover to expose the trunk floor and side trims. - Take Out the Cargo Floor Plastic Panel
Lift it gently from the handle area. It’s usually secured with Velcro or small clips underneath. - Remove the Trunk Sill Protector
Use a plastic pry tool to carefully pop out the clips along the edge. Work from one corner to the other. - Detach the Side Trim Panels
Locate and remove any screws hidden near the taillight or latch area. Then, pry out the side panels slowly. - Remove the Inner Trunk Lid Trim
Unscrew any visible fasteners and use a trim removal tool to release the retaining clips around the trunk lid. - Inspect for Hidden Clips or Wiring
Always check for trunk light wiring harnesses before pulling the panel off completely to avoid damage.
Removal Tips
- Warm the area slightly with a hairdryer if clips feel stiff (especially in cold weather).
- Avoid using metal tools — they can scratch the plastic or the paint underneath.
- Store the removed pieces flat to prevent warping before reinstalling.
“Taking time to gently release clips instead of forcing panels saves both your plastic trim and your patience.” — Toyota Technician Insight, 2023
Replacing the Trunk Plastic: OEM vs Aftermarket Options
When your 2022 Toyota Corolla trunk plastic gets damaged beyond repair, replacement becomes the best solution. Choosing between OEM (Original Equipment Manufacturer) and aftermarket parts can make a big difference in quality, cost, and appearance.
OEM Trunk Plastic
- Made by Toyota or authorized suppliers.
- Guarantees perfect fitment and color match.
- Typically includes all required clips and fasteners.
- Comes with Toyota warranty coverage.
Aftermarket Trunk Plastic
- Produced by third-party manufacturers.
- Usually more affordable, but may vary in texture and fit.
- Some brands offer enhanced durability or custom finishes.
- May require modification or additional hardware for installation.
| Comparison Aspect | OEM Toyota Trunk Plastic | Aftermarket Trunk Plastic |
| Fitment Quality | Perfect, factory-grade | May vary by brand |
| Material Type | Genuine ABS or PP plastic | Mixed materials possible |
| Price Range (USD) | $80–$200 per panel | $40–$120 per panel |
| Color and Texture | Exact match | Slight variation possible |
| Warranty | Yes (Toyota parts warranty) | Depends on manufacturer |
When to Choose Each
- Choose OEM if you want an exact replacement that maintains resale value.
- Choose aftermarket if you’re customizing, experimenting with textures, or saving on cost.
Expert Tip: Always confirm part numbers before ordering. Even minor trim variations between Corolla models (L, LE, SE, XSE) can affect compatibility.
Genuine Toyota Part Numbers for 2022 Corolla Trunk Plastic
Knowing the correct Toyota part numbers makes replacing your trunk plastic much easier and ensures a precise fit. Because Toyota designs each part to match specific trims and model variations, even small differences—like between the LE and SE trims—can affect compatibility.
Below is a reference table for common 2022 Toyota Corolla trunk plastic parts. Always verify using your VIN (Vehicle Identification Number) to confirm compatibility before purchasing.
| Component | Description | Toyota OEM Part Number | Approx. Price (USD) |
| Trunk Floor Panel Cover | Plastic cover over spare tire compartment | 64777-02340 | $90–$120 |
| Rear Cargo Sill Protector | Plastic trim at trunk threshold | 64429-02420 | $60–$100 |
| Left Side Trunk Trim Panel | Plastic inner liner, driver side | 64711-02H00 | $120–$160 |
| Right Side Trunk Trim Panel | Plastic inner liner, passenger side | 64712-02H00 | $120–$160 |
| Inner Trunk Lid Cover | Plastic panel inside trunk lid | 64431-02380 | $70–$110 |
| Trunk Retainer Clips Set (10 pcs) | Fasteners for trunk panels and sill trim | 90467-07201 | $10–$20 per pack |
Pro Tip: Many Toyota owners find OEM parts through verified online retailers or official dealer sites. Search using the term “Toyota Genuine Parts 2022 Corolla” to avoid counterfeit components.
When buying from non-Toyota sellers, check for Toyota logos, manufacturer stamps, and matching clip patterns. Counterfeit or low-grade plastics can warp, discolor, or not align properly during installation.
Installation Guide for 2022 Toyota Corolla Trunk Plastic
Once you have the correct replacement parts, installing the 2022 Toyota Corolla trunk plastic is straightforward if you follow proper alignment and sequence. This section outlines the process to achieve a professional, noise-free fit.
Step-by-Step Installation Process
- Clean the Area
Wipe the trunk cavity with a damp microfiber cloth to remove dust or debris before installing any panels. This ensures proper adhesion and alignment. - Install the Side Trim Panels
Begin with the left and right trunk liners. Align them with the mounting points and gently press until the clips snap into place. - Secure the Cargo Floor Plastic Panel
Position the panel over the spare tire compartment and press it down firmly to engage its retaining clips. - Attach the Rear Cargo Sill Protector
Line it up with the edge of the trunk opening and push each clip in evenly from one side to the other. - Reinstall the Trunk Lid Trim
Connect any wiring for trunk lights or the emergency lever, then press the lid panel into place and fasten the screws or clips. - Test for Fitment
Close the trunk gently to ensure there’s no resistance or misalignment. If the trunk doesn’t close smoothly, recheck the sill protector and side trim alignment.
Installation Checklist
| Step | Action | Check |
| Cleaning | Remove dirt and residue | ✅ |
| Alignment | Panels flush with trunk frame | ✅ |
| Clips Fit | All clips secure and tight | ✅ |
| Wiring | No pinched or loose cables | ✅ |
| Final Test | Trunk closes without friction | ✅ |
Expert Insight: Avoid overtightening screws or pressing clips too hard — Toyota’s trunk plastics are designed to flex slightly, not to be forced. Correct tension ensures quiet operation and longevity.
Cleaning and Maintenance of Trunk Plastic in 2022 Corolla
Maintaining the trunk plastic in your 2022 Toyota Corolla keeps it looking new and extends its lifespan. Dirt, dust, and UV exposure are the most common culprits of fading and wear. With regular cleaning and proper care, you can preserve the sleek factory appearance for years.
Best Cleaning Practices
- Use Mild Soap and Water:
Mix a small amount of car shampoo with warm water. Apply using a soft microfiber towel and gently wipe the surfaces. - Avoid Harsh Chemicals:
Do not use bleach, ammonia-based cleaners, or degreasers — they can cause discoloration and brittleness. - Dry Thoroughly:
Use a clean dry cloth to prevent water spots or streaks. - Protect with UV Spray:
Apply an automotive-grade plastic protectant (like Meguiar’s or 303 Aerospace Protectant) every few months to prevent fading.
Quick Maintenance Tips
| Maintenance Task | Frequency | Purpose |
| General Cleaning | Monthly | Remove dirt and debris |
| UV Protection Spray | Every 3 months | Prevent fading and cracking |
| Clip Inspection | Twice a year | Maintain secure fitment |
| Deep Detailing | Every 6 months | Restore shine and remove scratches |
Removing Scuffs or Light Scratches
Minor scuffs can be repaired using:
- Plastic polish or restorer
- Soft sponge and circular motion buffing
- Heat gun (low setting) — to gently reflow the plastic surface (only recommended for experienced DIYers)
“Maintaining your trunk plastic doesn’t just keep it looking new — it also protects the underlying metal from hidden moisture damage.” — Auto Detailing Specialist, 2024
For more guidance, Toyota’s official Car Care Tips page includes additional recommendations for interior and trim care.
Upgrading the Trunk Plastic for a Premium Look
The 2022 Toyota Corolla trunk plastic offers solid factory quality, but many owners choose to upgrade for a more luxurious or practical cargo area. Whether you’re aiming for better protection or a stylish aesthetic, several enhancement options can make a noticeable difference.
Popular Trunk Plastic Upgrades
- Cargo Liners and Mats
- Heavy-duty rubber or thermoplastic mats protect the trunk plastic from dirt, moisture, and scratches.
- Custom-fit liners from brands like WeatherTech or Husky Liners are popular among Corolla owners.
- Heavy-duty rubber or thermoplastic mats protect the trunk plastic from dirt, moisture, and scratches.
- Carbon Fiber or Brushed Finish Trims
- Adds a sporty or upscale look.
- Available as overlays for the trunk sill or side panels.
- Easy to install with adhesive backing.
- Adds a sporty or upscale look.
- Sound-Deadening Material Under Trunk Plastic
- Installing acoustic insulation under panels reduces road noise.
- Improves cabin quietness for long highway drives.
- Installing acoustic insulation under panels reduces road noise.
- LED Lighting Enhancements
- Replacing the standard trunk light with brighter LED strips highlights the cargo area and makes loading easier at night.
- Replacing the standard trunk light with brighter LED strips highlights the cargo area and makes loading easier at night.
- Organizers and Storage Systems
- Expand trunk usability without altering factory plastics.
- Collapsible bins or modular cargo dividers can help keep the trunk tidy.
- Expand trunk usability without altering factory plastics.
| Upgrade Type | Purpose | Estimated Cost (USD) |
| Custom Cargo Liner | Surface protection | $80–$150 |
| Carbon Fiber Trim Overlay | Aesthetic enhancement | $60–$100 |
| Sound Deadening Sheets | Noise reduction | $50–$120 |
| LED Trunk Light Upgrade | Better visibility | $25–$60 |
| Trunk Organizer | Extra storage and neatness | $30–$70 |
Pro Tip: Choose accessories specifically labeled for the 2022 Corolla sedan to ensure proper sizing — hatchback or hybrid trims often use different trunk dimensions.
Cost Breakdown: Repairing or Replacing 2022 Corolla Trunk Plastic
The cost of repairing or replacing trunk plastic in a 2022 Toyota Corolla depends on several factors — damage severity, OEM vs. aftermarket choice, and whether you handle it yourself or hire a professional.
Typical Cost Estimates
| Service Type | DIY Cost (USD) | Professional Cost (USD) |
| Replace trunk sill protector | $60–$100 | $150–$220 |
| Replace side trim panels (each) | $120–$160 | $250–$350 |
| Replace trunk lid inner trim | $70–$110 | $180–$250 |
| Replace full trunk plastic set | $300–$450 | $600–$800 |
Repair Options
- Minor scratches or fading:
Use plastic restorers or trim coating sprays. - Cracked panels:
Can sometimes be repaired using plastic welding kits or two-part epoxy designed for automotive plastics. - Broken clips or retainers:
These are inexpensive to replace — usually under $20 for a pack of 10 OEM clips.
Cost-Saving Tips
- Buying used OEM panels from salvage yards can save 30–50% compared to new parts.
- If replacing multiple panels, purchase a complete trunk trim kit — it’s often cheaper than buying individually.
- DIY installation videos and Toyota forums provide excellent step-by-step visual guidance for first-timers.
“Replacing trunk plastic panels is one of the easiest DIY projects for Corolla owners — it can be done with basic tools in under an hour.” — Certified Toyota Mechanic, 2024
Conclusion: Keeping Your 2022 Toyota Corolla Trunk Plastic in Top Condition
The 2022 Toyota Corolla trunk plastic plays a subtle but essential role in protecting your cargo space and maintaining your vehicle’s clean, professional appearance. Beyond aesthetics, it also contributes to noise insulation and structural protection — making it a part worth maintaining and upgrading.
By keeping the panels clean, replacing worn clips, and applying UV protection, you’ll preserve both the look and functionality of your Corolla’s trunk for years to come. Whether you stick with OEM replacements or explore aftermarket upgrades, understanding this often-overlooked component can make your ownership experience smoother and more satisfying.
Taking care of the small details — like the trunk plastic — keeps your Corolla looking new longer and helps maintain its strong resale value.
For more information about Toyota’s official maintenance recommendations, visit Toyota’s Owner Resources page.
When he’s not working his magic under the hood, Ethan Wilson is usually sharing his love for Toyota cars through his writing. Ethan’s got a special talent for breaking down complex car topics into easy-to-understand articles, making him a go-to source for Toyota enthusiasts everywhere.