Customer Dissatisfaction Regarding The Toyota Corolla Parking Sensor

I purchased my 2026 Toyota Corolla Dream X-Pack on 9 April 2026 and had front and rear parking sensors installed at the Toyota Sandıkçı Plaza Sakarya authorized dealer on 15 June 2026. During the ordering process two days before installation, I explicitly confirmed that the product to be installed would be a genuine Toyota parking sensor and paid the full amount in advance. Despite this, the product was misrepresented and the front parking sensor has been malfunctioning since the very first day. When there is an obstacle in front of the vehicle and the gear is in “Park”, the front sensor starts beeping continuously from the moment I start the engine. While parking, it detects the obstacle and starts beeping, but continues to beep even after I have finished parking and shifted back into “Park”. In addition, while driving at normal speeds, the audible warning sometimes activates by itself without any obstacle. This uncontrolled and persistent beeping is extremely distracting, undermines my confidence while parking and makes the system practically unusable. I have repeatedly contacted the authorized service about this problem. However, they simply insist that “this is how the system operates” and refuse to acknowledge that there is a malfunction. My written emails are not answered in writing, and I only receive verbal responses, so there is no proper record of their stance. Despite my clear explanation of the situation and the videos I can provide, the issue is being ignored and my complaint is not being taken seriously. Since my front bumper has been punctured for the installation of this sensor, I primarily request that a genuine, reliable Toyota front parking sensor be installed that operates correctly and safely. If this is not possible, I request that my vehicle be restored to its original factory condition by replacing the front bumper with an authentic, undamaged one and removing the faulty system. I kindly ask Toyota Turkey and the relevant dealer to urgently resolve this issue and to ensure that I am not left with a damaged and unreliable solution despite having chosen an authorized service and having paid in full.