2022 Toyota Redundant Sienna

While applying brakes vehicle lurches forward. While coming to a stop at a red light with a car in front of me I was slowing down applying brakes and all of a sudden it was just like they released for a second and had to stand on them. Does not happen all the time but I see many complaints about it. This has happened so far 8 or 9 times maybe more. May have to do what you eat generative breaking going to normal breaking power. Have reported it Toyota and they said it's normal it's not normal it's a safety issue

Today in the morning while driving on normal road, suddenly Rear Cross Traffic alert and Blind spot Monitor became unavailable according to a message on the dash. This message persisted after restarting. In the afternoon another message gave these two company. The vehicle informed me, that the parking support brake is now unavailable as well. Funny is, that these messages are not documented in the alert history of the vehicle, although they still persist. Mileage of first occurrence was 9800. Another user in a sienna forum reported a similar problem and said this might be related to the poor design of the rear bumper that allows ingress and accumulation of dust, dirt and mud around the rear radar sensor. The vehicle was driven the week before the incident and about 700 mi before the incident on a dirt road (County road) in Michigan. This was pretty dusty and a bit muddy, but nothing a normal non-off-road vehicle couldn't stand.

Premium Audio System. I have a bunch of FM and XM favorites saved as presets on my radio. After the 3 month trial of Sirius XM expired, I am having trouble with my presets. Whenever I zap through the presets and coming from a FM to an XM station, I can't control the direction of zapping anymore. Hitting the left button triggers going right, hitting right triggers right as well. This forces to zap through all presets. The moment I hit the expired XM preset the whole system suffers from lag of more than a second for every click. The only reasonable way back to control is switching to the Audio menu and start over with selection of FM source. Best thing: I can't delete the XM stations on this premium audio system.. That's a bummer. Dealership found this behavior strange, and tried to reset the system, didn't work at all. So they suggested to store 25 FM stations to override the existing XM presets.

Occasionally there is a message popping up about a malfunction of the tire pressure sensor while driving. This appears in conjunction with the yellow flat tire warning. It is very inconvenient, since I have to stop the van just to find out that the tire pressure is fine. Actually it's more than inconvenient since this may lead to a kind of negligence of this system what poses a safety thread. On top of that, the Toyota connect is app keeps telling me, that my tire pressure is low. Went to the dealership, they say they can reproduce the error message and the problem is known to Toyota. However they can not fix it. It seems to be a software issue.

I my Sienna had its 12 volt battery depleted over night with no reason. After it was jump started, literally every single piece of equipment was malfunctioning and producing an alert (hybrid system, brake pressure, RCTA, BSM, AWD,tire pressure and so on). After several restarts of the engine (about 15 min after running engine), all systems went to normal except hybrid drive system, that still asked for maintenance and the tire pressure sensor was still on alert. However I drove the vehicle to a dealership in Maine after the parking brake finally decided to get loose again. These guys told me, they had just the same problem with another 2022 sienna a week before. However, they reseted the errors, and everything worked fine. They had no explanation why two sienna in one week come to their lot with a depleted battery and as a consequence with a malfunctioning hybrid systen. That's very unsatisfying.

This van was converted to be wheelchair accesible by Vantage Mobility International. My parents have repeatedly had an error arise that indicates an issue with the hybrid battery cooling system. This system was modified by VMI, in partnership with Toyota, to allow for the accessibility features to be added to van. Neither the vehicle dealer, Superior Van and Mobility in Knoxville, TN, nor the local Totota dealer, Toyota of Knoxville, have been able to rectify the issue, despite mutliple attempts.We are concerned that this is a safety issue, and have asked for written confirmation of that and for the issue to be resolved. None of the three parties, Superior, Toyota, nor VMI, have been willing to do that nor rectify the issue. (I have filled this out for my parents because this has already become so stressful and in the wake of my dad's rapidly progressing disability, I don't want either of them to have to deal with more of the headache with this.)

When I’m braking, some times, the car seems to lunge forward for just a moment. It’s very unnerving. It’s almost like it’s slowing, but then surges forward for just a moment. We’re at 2k miles and have had it happen ~5 times now. Once it happened and shot me forward into traffic, thankfully there wasn’t a car right there or I would have been hit! Very scary, I feel like I’m not in control of the car at all. It definitely needs to be looked into more.

The van, sporadically, for the entire time we've owned it, lunges forward while depressing the brake pedal while turning into a corner or parking lot, etc. I reported this to the Toyota dealer service department when I brought my van in for the recall. The lunging continues so I brought to the dealer service department again, today. The service representative asked me if I ever drove a Hybrid before, informed me that this lunging is designed into Hybrid vehicles because this is when the battery is getting charged. The service representative told me that he drives a hybrid and that this happens to him. I asked for clarity stating, "So it's "designed for a vehicle to lunge forward? This seems like a safety issue. I've gone on forums to see if others have been experiencing this and saw that this is happening in the 2022 and 2021 Siennas". They service representative advised me to not go on forums because they are filled with unhappy people. He said he moderates a forum and knows this. I responded, "I know what I'm feeling when I depress the brake, the van is lunging forward."

The contact owns a 2022 Toyota Sienna. The contact stated while driving approximately 40 MPH and slowing to stop at a traffic sign, the brake pedal was depressed and there was no resistance from the brake pedal. The contact depressed the brake pedal with force to bring the vehicle to a stop. The contact stated no warning light was illuminated. The contact had driven the vehicle to a local dealer, where it was diagnosed and found that the brakes were operating correctly. The vehicle was not repaired. The contact stated that the failure recurred intermittently. The manufacturer had not been informed of the failure. The failure mileage was approximately 10,000.