Product Specifications
| Specification | Details |
|---|---|
| Brand | WeatherTech |
| Combined part number | 44954-1-2 |
| Front part number | 449541 |
| Rear part number | 449542 |
| Product line | FloorLiner |
| Color | Black |
| Coverage | First and second rows |
| Rear configuration | Two pieces |
| Material | High-Density Tri-Extruded material |
| Fit type | Vehicle-specific |
| Drivetrain compatibility | RWD and AWD |
| Flooring | Factory carpet |
| Manufacturing | Designed and manufactured in the USA |
| Warranty | Limited lifetime warranty |
Why the Rear Liners Use Two Pieces
The CT6’s rear passenger compartment and pronounced center tunnel limit the practicality of a single door-to-door liner. WeatherTech therefore uses separate left- and right-side pieces.
This configuration provides molded coverage underneath each rear passenger’s feet while preserving the factory center-floor geometry. It does not provide continuous protection across the entire center hump.
Owners expecting one enormous rear tray should inspect the product images before ordering. Product descriptions occasionally treat “second row” as though it explains everything. It does not.
Laser-Measured Interior Fit
WeatherTech digitally measures the CT6’s footwells to create liners that follow the factory contours. Raised perimeter walls extend around the front, back and sides of the floor instead of covering only the flat carpet underneath passengers’ shoes.
The molded design protects against:
- Rainwater
- Snow and slush
- Road salt
- Mud and sand
- Food debris
- Spilled drinks
- Everyday shoe wear
This protection is particularly useful in a luxury sedan, where heavily stained carpet looks less like patina and more like deferred maintenance.
HDTE Material Construction
Traditional WeatherTech FloorLiners use a proprietary high-density material engineered to combine a rigid core with a textured upper surface. The structure helps each piece hold its shape, while the lower surface provides friction against the carpet.
Factory-compatible retention provisions secure the front liners and keep the driver-side piece away from the accelerator and brake pedal.
These are standard FloorLiners, not the softer FloorLiner HP product. Buyers who prefer a flexible, rubber-like feel should compare both WeatherTech constructions.
Fluid Channels and Lower Reservoirs
Channels direct water and loose debris into lower containment areas, reducing movement while the CT6 accelerates, brakes or corners.
The raised outer edges help keep normal spills away from the carpet until the liners can be removed. Keep each liner level during removal unless you want to return its contents directly to the interior with remarkable efficiency.
Installation Instructions
No drilling or permanent modification should be necessary:
- Remove all original and aftermarket floor mats.
- Vacuum the exposed carpet.
- Position the driver-side liner over the factory retention points.
- Lock the anchors securely.
- Install the front-passenger liner.
- Place each rear liner in its corresponding footwell.
- Check clearance around the front-seat tracks and rear vents.
- Verify unrestricted accelerator and brake-pedal travel.
Never stack WeatherTech FloorLiners over the original Cadillac mats. Stacking can prevent proper anchoring and create pedal interference.
For additional help verifying model-specific components, see our OEM replacement parts guide.
Cleaning and Maintenance
Remove the liners before washing:
- Shake or vacuum away loose debris.
- Rinse the molded surfaces with water.
- Apply mild detergent or an approved liner cleaner.
- Scrub stubborn residue using a soft brush.
- Rinse thoroughly.
- Let the liners dry before reinstalling them.
Avoid silicone-based protectants and greasy interior dressings. WeatherTech specifically discourages products that can leave the surface slippery.
Owners restoring other cabin surfaces can also review our complete dashboard repair guide.
Frequently Asked Questions
What vehicles does WeatherTech 44954-1-2 fit?
It fits compatible 2016–2020 Cadillac CT6 and 2019–2020 Cadillac CT6-V models.
Does it fit both RWD and AWD CT6 models?
Yes. Published front-liner fitment includes both rear- and all-wheel-drive CT6 configurations. Confirm the exact trim before purchasing.
Does it fit the CT6-V?
Yes. WeatherTech lists the set for the 2019 and 2020 Cadillac CT6-V.
Does it fit the CT6 Plug-In Hybrid?
Fitment is not sufficiently clear to assume compatibility. Plug-in-hybrid owners should verify the VIN and rear-floor configuration directly with WeatherTech.
Is the rear liner one piece?
No. Part 449542 uses two separate rear pieces.
Does the package include a trunk liner?
No. It covers only the first- and second-row passenger areas.
Are these soft rubber mats?
No. Traditional WeatherTech FloorLiners have a relatively firm molded construction. FloorLiner HP is the softer alternative.
Can the factory Cadillac mats remain underneath?
No. Remove all existing floor mats before installation.
Will these fit a Cadillac CT5?
No. The CT5 uses a different platform, wheelbase and interior floor design.
Final Verdict
WeatherTech 44954-1-2 provides extensive front and rear footwell protection for the 2016–2020 Cadillac CT6 and 2019–2020 CT6-V. It fits both conventional RWD and AWD CT6 configurations, with two separate rear liners instead of one full-width section.
Confirm plug-in-hybrid applications separately and remember that this set does not cover the rear center hump or trunk.






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