2025 Toyota Crown Signia

Early owners of the 2025 Crown Signia report occasional harshness during transitions between electric and gasoline power modes. The hybrid system can produce a noticeable lurch or shudder when the gasoline engine kicks in, particularly during moderate acceleration from low speeds. The issue is most apparent in the first few thousand miles.

Toyota is expected to release hybrid control ECU software updates to smooth the EV-to-ICE transition as more data is collected from early production vehicles. Visit the dealer for the latest powertrain calibration software. The adaptive learning algorithm may also improve the transitions over time as the system learns driving patterns.

The 12.3-inch Toyota Audio Multimedia system in the Crown Signia experiences intermittent wireless Apple CarPlay and Android Auto disconnections. Bluetooth audio streaming may also cut out or develop latency. The wireless phone charging pad can interfere with the phone's Bluetooth and Wi-Fi signals when in use simultaneously.

Toyota has released over-the-air software updates to improve wireless connectivity stability. Moving the phone off the wireless charging pad when using wireless CarPlay/Android Auto can resolve interference-related disconnections. Switching to a wired USB-C connection provides the most reliable CarPlay/Android Auto experience.

Some owners report noticeable wind noise intrusion from the driver and passenger A-pillar areas at highway speeds. The noise is described as a whistling or rushing sound that increases with speed. Early reports suggest the door seal compression at the upper A-pillar area may be insufficient on some production units.

Have the dealer inspect the front door weather stripping alignment and A-pillar trim fitment. Adjusting the door striker position to increase seal compression can resolve the noise. If the weather stripping is defective, it will be replaced under warranty. Toyota is monitoring this issue for potential TSB release.

Crown Signia owners report that the adaptive variable suspension delivers a firmer ride than expected for a luxury-oriented crossover wagon, even in Comfort mode. Sharp bumps and expansion joints produce a jarring impact that is transmitted through the cabin. The suspension tuning seems optimized more for handling than comfort.

Ensure the drive mode is set to Comfort or Eco for the softest suspension setting. Toyota may release a suspension ECU calibration update to soften the damper response in Comfort mode. Tire pressure should be verified at the recommended 35 PSI, as overinflation will exacerbate ride harshness.

The rear parking sensors and surround-view camera system occasionally generate false proximity warnings when no obstacle is present, particularly in cold weather or when the sensors are wet. The system may also display a distorted or misaligned surround-view camera image after vehicle startup, requiring the camera system to recalibrate.

Keep the parking sensors and camera lenses clean, as dirt, ice, and water droplets are common triggers for false alerts. Toyota may release a software update for the parking assist ECU to improve false alert filtering. If a specific sensor consistently provides false readings, it may need replacement under warranty.