1. Product Overview
The WeatherTech FloorLiner is a custom-fit floor protection system designed to precisely line the interior carpet of your vehicle. This product is engineered to provide comprehensive coverage, channeling fluids and debris to a lower reservoir to protect your vehicle's carpet from spills, dirt, and wear.
This manual provides instructions for the WeatherTech Custom Fit FloorLiners, Model 456321, for the 1st Row of select 2014-2019 Toyota Highlander models.

Image 1.1: A pair of tan WeatherTech FloorLiners, showing the driver and passenger side mats.

Image 1.2: A tan WeatherTech FloorLiner correctly installed in the driver's footwell of a vehicle, demonstrating its custom fit.
2. Safety Information
Please read the following safety information carefully before installing your WeatherTech product.

Image 2.1: Safety information label provided with WeatherTech products.
- To ensure a proper fit:
- Remove all previously installed floor mats.
- Clean any debris from the vehicle floor.
- Use great care to install your WeatherTech product in the correct location per the enclosed instructions or video.
- Always use any existing or provided retention system so the WeatherTech product is properly secured.
- Inspect vehicle control pedals for full freedom of movement after installation and before each use.
- DO NOT OPERATE VEHICLE IF ANY INTERFERENCE EXISTS AT ANY TIME.
- Check the fit of the WeatherTech product frequently and especially after the vehicle is washed, serviced, or the product is reinstalled.
- Retain this warning/instruction label in the vehicle so all drivers have access to this information.
- Ensure that you have the proper part (SKU) for your vehicle.
For detailed instructional videos, please visit: WeatherTech.com/Install
3. Installation Instructions
Follow these steps for proper installation of your WeatherTech FloorLiners:
- Prepare the Vehicle Floor: Remove all existing floor mats from the 1st row of your Toyota Highlander. Ensure the vehicle's carpet is clean and free of any debris, dirt, or obstructions.
- Position the FloorLiner: Carefully place the driver's side FloorLiner into the driver's footwell and the passenger's side FloorLiner into the passenger's footwell. Align the FloorLiners with the contours of the vehicle's floor.
- Secure the FloorLiner: Engage any existing or provided retention systems (e.g., floor hooks or posts) with the corresponding holes or grommets on the FloorLiner. Ensure the mat is securely fastened and does not shift.
- Verify Pedal Clearance: After installation, sit in the driver's seat and operate the accelerator, brake, and clutch (if applicable) pedals through their full range of motion. Confirm that the FloorLiner does not interfere with pedal operation at any point.
- Final Check: Visually inspect both FloorLiners to ensure they are lying flat, are properly seated, and do not obstruct any vehicle controls or vents.

Image 3.1: Demonstrating the installation of a WeatherTech FloorLiner into the vehicle's footwell.
4. Product Features and Design
WeatherTech FloorLiners are designed with advanced features for optimal vehicle interior protection:
- Custom Fit: Each FloorLiner is digitally measured and custom-fit to the specific contours of your vehicle's floor, ensuring maximum coverage.
- High-Density Tri-Extruded (HDTE) Material: Constructed from a patented HDTE material, providing a rigid core for strength, surface friction to prevent movement, and a tactile feel.
- Advanced Surface Design: Features channels and ridges that direct fluids and debris away from your feet and clothing, guiding them to a lower reservoir.
- Lower Reservoir: Designed to contain spills, mud, and snow, preventing them from reaching your vehicle's carpet.
- Retention Systems: Engineered to work with factory or provided retention hooks to keep the FloorLiner securely in place.

Image 4.1: Diagram highlighting the comprehensive interior protection, high-density material, advanced surface design, lower collection basin, and specially developed retention systems of the FloorLiner.

Image 4.2: An illustration demonstrating the extensive coverage provided by WeatherTech FloorLiners in a vehicle's footwell.

Image 4.3: A close-up of a work boot covered in snow and ice resting on a FloorLiner, illustrating its ability to contain winter elements.
5. Maintenance and Cleaning
Maintaining your WeatherTech FloorLiners is simple and helps preserve your vehicle's interior. Regular cleaning is recommended to keep them looking new and functioning effectively.
- Removal: Carefully remove the FloorLiners from your vehicle, ensuring not to spill any collected debris or liquids.
- Cleaning: For light cleaning, simply wipe with a damp cloth. For heavier dirt, mud, or spills, use soap and water or a dedicated FloorLiner and FloorMat Cleaner.
- Rinsing: Rinse thoroughly with water. A garden hose can be used for quick and effective rinsing.
- Drying: Allow the FloorLiners to air dry completely before reinstalling them in your vehicle. Do not use harsh chemicals or abrasive brushes, as these may damage the material.

Image 5.1: A hand removing a dirty FloorLiner from the vehicle, demonstrating ease of removal for cleaning.

Image 5.2: A person cleaning a FloorLiner with a garden hose, illustrating the ease of rinsing off dirt and debris.

Image 5.3: WeatherTech's recommended cleaning and protection products for FloorLiners and floor mats.
6. Specifications
| Brand | WeatherTech |
| Model | FloorLiner |
| Item Model Number | 456321 |
| Coverage Area | 1st Row (Driver & Passenger) |
| Color | Tan |
| Material | Patented High-Density Tri-Extruded (HDTE) |
| Product Dimensions | 19.29 x 3.54 x 42.91 inches |
| Item Weight | 2.2 pounds |
| Manufacturing Location | USA |
7. Support and Warranty Information
For product support, installation assistance, or warranty inquiries, please contact WeatherTech customer service directly. Detailed warranty information is typically provided with your product packaging or can be found on the official WeatherTech website.
WeatherTech Contact Information:
- Website: www.weathertech.com
- Phone: Refer to the official website for current contact numbers.