2021 Toyota Redundant Sienna: problems, recalls and reliability
2 recalls and 165 owner complaints on record; the weakest area is service brakes (46% of complaints).
Data updated weekly · latest recall Dec 2025
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
Common problems
Computed from 165 owner complaints filed with NHTSA for this exact model year.
“I turned on my minivan to drive my kids to school when I heard a sudden loud metal shredding/knocking and shut my van off. All maintenance was performed regularly on the van and no lights were on. I have a hole in my engine block now caused by a thrown rod, and no mechanic can explain why this happened. Oil was in good condition, and nothing indicated this should have happened.”Owner report · Engine · Jan 2026
“Subject: Vehicle Safety Complaint - Recall 23TA15 | VIN [XXX] Hello, I am submitting a formal vehicle safety complaint regarding Safety Recall 23TA15 for my 2021 Toyota Sienna (VIN [XXX] ). Please find my detailed complaint and supporting documentation attached. This matter involves lack of disclosure and/or delayed notification of a safety recall, resulting in family safety exposure and loss of use. Thank you for your review and assistance. Sincerely, [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”Owner report · Air Bags · Dec 2025
“It has been 22 months since the recall (NHTSA Number 23V865) and over a year since the expected remedy date. What is the status update? What is causing the delay?”Owner report · Air Bags · Sep 2025
Show 7 more owner reports
“When braking to a stop at low speed (stopping at stop sign or at light), then car accelerates forward even though my foot is on the brake attempting to slow the car down. This unintended acceleration is dangerous and can cause an accident.”Owner report · Service Brakes · Sep 2025
“2021 Sienna Hybrid Platinum AWD ~65K miles. Safety Issue: Fogging of windows increased, as AC was not working properly. Believe rear AC lines had galvanic corrosion from differing metals, steel bracket with aluminum line-sets causes corrosion hole in refrigerant line set, and leak causing loss of all Freon. No warning lights or messages, AC just stop blowing cold. Vehicle is driven in Michigan on winter roads with road salt, but stored in garage and only 4 years old. $1742 fix to replace line-sets, which can corrode again without proper design fix. Problem confirmed by dealer, and seen in other similar year Sienna's.”Owner report · Visibility · Aug 2025
“sound coming from engine / transmission other issues with the 2 ruber seals on the minivan keep worping out i looked on all the forms everyone is making the same complaint i toook it to toyota they just put tape and its off again they didnt help for a perminent fix back door is miss alined pasanger side sliding door sometimes does not close takes 3-4 atempts pressing the button”Owner report · Engine · Jul 2025
“Brake Transition Issues: I have noted frequent jolts of power when braking, which creates at least the sensation of, if not actual acceleration while breaking. Web research suggests this may be linked to the vehicle switching between regenerative and mechanical braking systems, and that the problem is acute with 2021 and 2022 Toyota Siennas, which, if accurate, means Toyota has applied a fix to subsequent model years, but has not systematically addressed the first two years of the current Sienna generation.”Owner report · Service Brakes · Jul 2025
“Occasionally the brakes seem to stop working briefly, and the van even accelerates while the brakes are engaged. It happened again today but has happened since we got the van new in 2021. The dealer cannot replicate the problem. The problem is discussed on this thread: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”Owner report · Service Brakes · Jun 2025
“2nd row passenger seat recline does not work. My seat is very reclined now causing the 2nd row passenger to not be in the optimal position for SRS airbag performance that may result in possible death due to head impact during a side collision. Toyota likely has enough data to issue a TSB to resolve this issue preventing serious injury or death to one of my children.”Owner report · Seats · Jun 2025
“When slowing down the brakes work at first, but the slip and the vehicle rolls freely, then once you press them harder it engages and brakes. But for about 2 seconds there is no breaking! This has happened several times prior to today.”Owner report · Service Brakes · May 2025
When filing, owners marked a crash in 14 of these complaints and injuries in 11 - self-reported to NHTSA, not verified accident statistics.
Recalls - 2 campaigns
Vantage Mobility, LLC (VM) is recalling certain 2021-2026 Honda Odyssey, 2021-2025 Chrysler Pacifica, and Toyota Sienna vehicles equipped with QRT-Deluxe and QRT-Max wheelchair restraints. The retractors may not lock, preventing the wheelchair from being properly secured.
Remedy: Dealers will inspect and replace the retractors, free of charge. Owner notification letters was mailed January 27, 2026. Owners may contact Vantage Mobility customer service at 1-800-488-9082.
Toyota Engineering & Manufacturing (Toyota) is recalling certain 2022 Lexus LX 600, Lexus NX 350h, Lexus NX 450h+, Toytoa RAV4 Hybrid, 2021-2022 Lexus LS 500h, Toyota Mirai, RAV4 PRIME, Sienna, Venza, and 2020-2022 Toyota Highlander Hybrid vehicles. The Skid Control ECU software may not turn on the Vehicle Stability Control (VSC) system when the vehicle is restarted after the driver has disabled the VSC system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 126, "Electronic Stability Control Systems."
Remedy: Dealers will update the Skid Control ECU software, free of charge. Owner notification letters were mailed May 27, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 22TA03. Lexus' number for this recall is 22LA01.
How other years compare
Check your exact Redundant Sienna by VIN
Recalls and equipment differ between individual vehicles. Decode your VIN to see what applies to yours.
Open VIN decoderFrequently asked questions
Is the 2021 Toyota Redundant Sienna reliable?
NHTSA has 165 owner complaints and 2 recall campaigns on record for the 2021 Toyota Redundant Sienna. The most complained-about area is service brakes (46% of complaints).
At what mileage do 2021 Toyota Redundant Sienna problems usually appear?
Half of the complaints that mention mileage were filed at 28,000 miles or less.
Does the 2021 Toyota Redundant Sienna have open recalls?
2 recall campaigns have been issued, the latest concerning equipment adaptive/mobility:wheelchair restraints/securement:latch/anchor:. Check your specific vehicle by VIN - recall repairs are free at franchised dealers.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.