2021 Toyota Redundant Sienna

2 issues to report 1) when under medium consistent breaking(slowing down for a light) there are instances where the breaks feel like they let up or slipping. This issue has been reported and with the car since the first year of ownership but Toyota says it’s all within spec 2) second issue is an issue with the rear captions seatbelt and has also been reported since 2022 where upon normal driving the seatbelt locks up and the car has to be stopped and seatbelt unbuckled to release tension. Also brought up multiple times with Toyota and no action. Kids sometime unbuckling while car is driving since they cannot move

When my car is going down a steep hill and I have the brake applied, Suddenly the car will speed up and lurch forward instead of continuing to slow down. This is not how cars normally behave in the 30 years I have been driving. I could have slammed into the car in front of me. This has happened over 100 times. My vehicle has approximately 27,000 miles and I have mentioned it at the Toyota service center and it has been checked out and there are no issues that they see. No warning, lamps or messages appear at all

This incident had happened twice in the last 30 days. I have been stopped, then starting to accelerate after a stop sign, I push on the accelerator and the vehicle slows down, as if it’s losing power for about 5 seconds. I do not release the accelerator and after the 5 seconds of what feels like no power, the van begins to accelerate like normal. This poses a severe safety risk while crossing intersections when you believe your vehicle should respond when pushing on the accelerator. I did not have any notifications pop up on my van, I was in an open intersection on both instances, with no one in front of me. Speed limit was about 5mph, coming off a complete stop. This is extremely dangerous, especially when your vehicle feels like it stalls without any reason. The gas pedal is completely non-responsive for 5 seconds.

In the 2-1/2 years than I have owned and driven this vehicle, I've had no problems. On Saturday, [XXX], driving home from a 80 mile trip, as I deaccelerated to make a left turn onto my street (speed was 7mph) I tapped the break pedal and the vehicle went bonkers! The Sienna veered right at a high rate of speed that the front end cleared the curb; the back end smashed into the curb flattening both rear tires and damaging the metal hubcaps; the vehicle speed tore off the bumper and both rear panels. I was able to steer the vehicle: missing a large 2-foot high tree stump; two other large trees; a 10-foot high solid fence at the yard back. I then drove down the sidewalk to the next intersection and was finally able to slow down. This entire time, my foot was on the break, but the vehicle would not stop. The Sienna is now at Faulkners Collision Center in Mechanicsburg with virtually no front end damage but colossal rear damage. The vehicle had 5-full maintenance checks since purchase. I was not told of any suspected problems and never received a vehicle recall. I could have been killed or may have killed others as there is a playground on the corner of this block. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I BELIEVE THE COMPUTER CAUSED THE PROBLEM. THE CAR IS AVAILABLE FOR INSPECTION AS PERSONNEL AT GETTEL TOYOTA IN PUNTA GORDA CLAIMED THEY COULDN'T TOUCH THE COMPUTER AND HAVE DONE NOTHING. Purchased Sienna in August 2021. In October at about 5:30 a.m. we were in the far left lane on a PA interstate, traffic came to a stop for construction. A delivery truck in front of us rolled backward a bit. When traffic started up again, our car would not go forward, only reverse. We tried "drive"--nothing--only had reverse. Finally, with cars whizzing around us, shut the engine off. Upon restarting, all gears were restored and we continued on to Boston. We were shaken by this event. Since then, we have had numerous incidents of the car not moving when I put it (mainly) into reverse. I had to shut the engine off--restart--and it went into gear. Latest incidents--first week February 2024--I pulled into a parking space at Englewood Hospital. After visiting my husband, came out, started the car, put it into reverse--NOTHING. Shut the car off--restarted it, and it was ok. Ten minutes later, I pulled off onto the shoulder to take a call from one of his doctors and--no gears. Shut off the engine, restarted it and it was ok. I'M WORRIED I'LL STOP FOR A TRAFFIC LIGHT ON ONE OF OUR 4 OR 6 LANE STREETS AND GET HIT BECAUSE OUR CAR WON'T GO INTO GEAR.

This is a follow up to NHTSA ID Number: 11542558. We have determined that this issue does not merely involve the brakes releasing, but the vehicle actually accelerates during the incident. Our 2021 Toyota Siena LE AWD has an issue where, while steady pressure is being applied to the brake pedal, the brakes will randomly release and the car will actually accelerate briefly. While attempting to slow or stop the vehicle with steady pressure on the brake pedal, the braking action will momentarily give out, resulting in the vehicle lurching forward beyond the anticipated stopping/slowing distance before the braking action re-engages. In many, if not all occurrences, the vehicle actually accelerates. For example, if the incident occurs while driving up a hill, not only will the rate deacceleration decrease, but the vehicle will actually accelerate up the hill briefly before the braking re-engages. This issue occurs on a regular, but seemingly random basis, multiple times per week. This issue occurs under all driving conditions (hot or cold, dry or wet, smooth pavement or rough surfaces). It occurs at all driving speeds, including under 25mph and over 55mph. This is a dangerous condition that could cause serious injury or death. This could easily result in a collision with cars, bikes, or pedestrians as the vehicle suddenly stops slowing without warning and unexpectedly accelerates. It could also result in a serious collision from cross-traffic if the issue caused the Sienna's stopping distance to go past a stop sign or red light into an intersection. The problem is intermittent and difficult to reproduce, but has occurred repeatedly over the 35 months we've owned the Sienna. No warning lamps, error messages, or other related symptoms are associated with these occurrences, either before or after an occurrence of the problem. Please investigate and require Toyota to issue a recall.

About 25% of the time when I come to a stop and I am breaking, the car surges forward slightly. At first, I thought it was the way I was driving or the fact that it is an EV vehicle, which I had not driven before, but overtime it seems it is just the way the car operates. Others in the car have felt it happen as well as I have come to a stop sign or stoplight. I have not bumped into another car or anything but feel that that could happen if this is not corrected.