Automatic Emergency Braking problems of the 2021 Toyota Sienna

While driving vehicle, warning message come on saying, “parking brake malfunction. Visit your dealer. ” the message stayed on. I delivered the van to the dealer two days later and there it is @ dch Toyota in wappingers falls NY.

Pulling into paved parking spot on very slight uphill grade. Tried to apply brake pedal but car kept moving forward about 6ft over curb and crashed into cement wall creating slow speed impact damage to front end. Towed on flat bed to dealers lot. Tow truck driver noted brake seemed loose and had little resistance. Car still under warranty, 28. 8k mi, all warranty required maintenance has been performed to date by dealer. No prior accidents. Annunciation on screen after event saying "parking support brake malfunction visit your dealer" message has subsequently remained. Large number of same or similar annunciation messages over last 4 yrs reported on Toyota nation web site. Messages indicate that TSB-019-19 may apply and/or dtc c13b0. However, service manager at dealer has refused to investigate this and similar diagnostics to explain safety systems failure or otherwise repair under warranty agreement, unless we first sign a release for personal injury liability with Toyota legal department. Dealer has advised it is not safe to drive car in its present condition. Please note similar complaint sent a few days ago on this web site (no response so far) but there was an error in reported VIN so this is a resend.

Our Sienna has had incidents of unintendedly accelerated a minimum of 25 times. I have been unable to stop the vehicle several time to the point where I have had to go through a lighted stop intersection. There have been numerous "close calls” where I have nearly hit the vehicle in front of me. My wife, while driving to pick up my 4 children, actually bumped into a vehicle in front of her. It is a serious risk to expect that I drive the vehicle with my wife and 4 kids inside, yet Toyota expects I will drive the Sienna for over a month while they wait to get the report back about the vehicle. I am not willing to put my life at risk along with my wife and four children while we wait for Toyota to address the issue. We brought the Sienna in after the initial few close calls (March 14, 2022), and they were unable to find anything wrong. After receiving the vehicle back, the issue continued. Once my wife was in an accident with the Sienna, we have decided we will not be driving it until we are assured it has been resolved. It was brought back to Toyota on April 19, 2022). At this point and I not confident Toyota will be able to fix the issue. Toyota has deemed the car safe to use; even though they have not received back the report. It's reckless and immoral to knowingly place someone in a vehicle that has already caused 1 accident (although thankfully very minor) and something I am unwilling to do. Meanwhile Toyota has offered nothing to keep me safe or offered a vehicle in the meantime. The forward collision does not work. The entire vehicle is available for inspection. I am not certain what Toyota has inspected, but an inspection was performed on may 10th and the results will not be available until June 13th. Problem is not able to be reproduced as the car has not been driven. The warning sign prior to the accident was numerous other near misses.

Keep in mind: brand new Sienna!!! 1. What component or system failed or malfunctioned, and is it available for inspection upon request? -the main and most important component was the entire airbag system which displayed "malfunctioned" only after the collision. The tpcs (Toyota pre-collision system) also was defaulted to "off" and said that the sonar malfunctioned. 2. How was your safety or the safety of others put at risk? -very compromised! my whole family and my children would've been seriously injured or departed from this world had we not had the seat belt on and the way it all played out! all of the airbags, including the driver's knee airbag, passenger seat cushion airbag, front seat side airbags, rear outboard seat side airbags, and curtain side airbags for all three rows , malfunctioned and car was in a standstill on the fastest left lane #1 on I-95 with no cushioning or failsafe mechanism active 3. Has the problem been reproduced or confirmed by a dealer or independent service center? -no, and Toyota was very quick and desperate to get their hands on my vehicle and to get me to sign their authorization instead of wait. As a computer scientist, I know when information systems can be exploited/manipulated and all my driving data and accident/metadata is collected constantly by Toyota so in short: "no transparency" 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -yes, two very biased partisans involve: the liable party's insurance (allstate) and Toyota motor CO. So I need some nonpartisan assessment/evaluation ASAP 5. Any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -nope! no warning lamps, no vehicle health messages, no Toyota app notification prior to the accident. Everything mentioned in the last sentence went haywire exactly after the collision and displayed lamps/played warning alarms non stop. Refer to uploaded files.

Van has just over 5k miles. Multiple warnings occurred while at speed on a highway. Primary warning was 'low brake power' and braking became extremely touchy as it seemed to utilize the emergency brake as a backup. This extreme braking is hazardous and could result in an accident caused by braking too quickly - with a possible rear-end collision by traffic to the rear. Additional warnings/malfunctions were listed as well, due to the low brake power: lta malfunction (lane keep assist), automatic emergency brake malfunction, parking brake malfunction, check engine. There were no symptoms of poor braking prior to the incident. Dealer filed a tas report with Toyota to address the problem, and was subsequently inspected by the Toyota field representative. Initially could not duplicate/identify the issue and the van was returned. Within one week the incident reoccurred, again on the highway. Van is currently with the dealer and the brake booster and brake master cylinder will be replaced. Expect the dealer will retain the parts.