2017 TOYOTA RAV4 Forward Collision Avoidance Warnings Problems

I have a 2017 RAV4 Hybrid XLE that I bought brand New. I have done all schedule maintenance on it. I was driving to an appointment on 15 November 2023 and the vehicle all the sudden jerked violently side to side throwing me off the road. I brought the car to the shop thinking an alignment or something. My whole rear subframe was cracked, and by the driver side rear wheel bolt it was broke straight through where the tow bar connects to the subframe. The mechanic said it was from rust from living in the Northeast, and the salt from the road during winter months. The Mechanic said Even though I took care of the vehicle this was going to happen anyways due to the subframe suspension parts that Toyota puts in the RAV4. Being flung into a ditch coming off a highway is a dangerous situation, and could...

I have attached a letter that I wrote Toyota but did not mail. Vechicle is a 2017 Rav Hybrid. We bought it in CA April 2021 and it had 28230 miles. Car went to Renton WA in August, 2021. Vechicle was serviced a couple of times, but in October 2022, dealer gave us a bill for $9700 due to a faulty wire halter. The Toyota people said the car is out of warranty. Please read the letter with lots more details. Thanks.

WITH RAIN AND SNOW THE SENSOR START BEEPING AND WARNING OF OBJECTS IN FRONT OF THE VEHICLE WHEN THERE ARE NOTHING. DRIVING IN SNOW GETS THE SENSORS BLOCKED AND YOU CANT USE THE CRUISE CONTROL.