2025 Toyota Sienna Problems: Mirror Vibrations & Sunroof Failures
Analyzing reported issues with the 2025 Toyota Sienna using Lemberg Law’s internal data, NHTSA reports, consumer feedback, and industry insights to help owners understand common problems and their legal options.
The 2025 Toyota Sienna is positioned as a reliable and fuel-efficient hybrid minivan designed to serve families and drivers seeking AWD capability and a spacious interior. This article investigates common complaints and safety concerns reported by 2025 Sienna owners. This article investigates the most common problems, safety concerns, and manufacturer responses using information from NHTSA reports, consumer feedback, and Lemberg Law’s internal data. Our aim is to provide vehicle owners with guidance on car issues and their rights under the lemon law.
Our analysis found that the following problems stand out as the most frequently reported by 2025 Sienna owners. We’ll break down the top three problems in the subsequent sections followed by lemon law right information..
Driver-side exterior mirror vibration
Sunroof glass failures and leaks
Sliding door noise and seat locking malfunctions
Transmission and steering alignment issues
2025 Toyota Sienna Complaint Summary
Complaint Category
Number of Complaints
Seats
7
7
Unknown Or Other
6
6
Visibility:rearview Mirrors/devices:exterior
6
6
Visibility/wiper
5
5
Back Over Prevention: Sensing System: Camera
1
1
Lane Departure: Blind Spot Detection
1
1
Latches/locks/linkages:doors:lock
1
1
Seat Belts
1
1
Service Brakes
1
1
Steering
1
1
Top Problem #1: Driver-Side Exterior Mirror Vibration
The most prevalent complaint among 2025 Sienna owners regards significant wobbling and vibration of the driver-side exterior mirror. This defect impairs visibility, especially at highway speeds or on uneven roads, and poses a safety hazard when changing lanes or monitoring surrounding traffic.
Owner-reported symptoms and challenges include:
Mirror visibly shakes or vibrates at speeds above 30 mph and during bumps
Distorted and blurry reflections, worsening at night due to headlights
Persistent vibration unaffected by mirror adjustment
Replacements provided by dealerships fail to resolve the underlying issue
One owner noted, “The [outer] rear-view mirror on the driver side exhibits a vibration/shaking of the image. It is obvious and continuous vibration is observed typically on highway speeds of approximately 60mph or higher and lower speeds it is evident driving over slight bumps, concrete/asphalt road surfaces or bridges. Looking at the shaking image causes dizziness and it is even worse in night time with headlights from vehicles coming behind. It is [an] annoyance to the point that [it] makes you feel not to use the rear-view which can potentially put the vehicle and others in danger. [The] passenger side doesn’t vibrate and makes it easy to notice the issue. [The] dealer inspected the mirror and said [it’s a] manufacturing issue and replaced it under warranty with no success in fixing [the] underlying vibration issue.”
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Top Problem #2: Sunroof Failures and Water Leaks
The 2025 Sienna sunroof has also generated multiple complaints concerning sudden glass breakage and persistent water leaks. In some cases, sunroof glass exploded without impact, startling drivers and creating safety concerns. Others report ongoing water intrusion even after repairs, leading to interior damage and electrical issues.
Key owner experiences include:
Sunroof glass shatters spontaneously while driving or parked
Water leaks around the sunroof and roof rails after rain or car washes
Dealerships attempt fixes but leaks often persist
Concerns about clogged sunroof drains contributing to water intrusion
Owners with warranty coverage facing long wait times for parts and repairs
An owner shared, “Driving roughly 60 mph on empty road with no cars in front. Sunroof was closed, and exploded with great force and 80% of the glass flew off. No objects impacted the sunroof prior to the sunroof exploding. “
Top Problem #3: Sliding Door Noise and Operational Issues
The sliding door rollers on the 2025 Sienna have attracted multiple complaints due to a persistent grinding or rattling noise. This stems from quality control problems during assembly, causing uneven coating and rough roller movement.
Symptoms owners report:
Excessive and loud noise when operating sliding doors
Repeat trips to dealership for repairs
Delayed repairs because replacement parts are backordered
Lingering noise despite multiple repair attempts
One owner described, “I bought this vehicle brand new. I quickly realized that both rollers on the sliding doors were causing excessive noise, which I found out that many other owners have complained [about] as well, when closing & opening. This is because of a poor assembly from Toyota as the rollers are not machined prefect painted & are either oversprayed or less sprayed causing gaps on the rollers. These gaps or uneven paints cause excessive noise when rollers are moved on their track. There are several new Sienna owners who are waiting to have this issue fixed as the parts are backordered. I had to make [a] total of 4 trips to my local dealership to have the issue fixed. I can still hear a little bit of over excessive noise from one of the sliding doors. Toyota should immediately recall all the affected vehicles and have this issue fixed.”
What Should You Do If Your 2025 Toyota Sienna Is a Lemon?
A vehicle qualifies as a lemon under state consumer protection laws when it has a substantial defect covered by warranty that significantly impairs use, value, or safety and remains unresolved after reasonable repair attempts.
If you experience ongoing problems with your 2025 Sienna, consider these steps:
Document every repair attempt: Keep detailed records of dates, repair orders, and dealer communications.
File complaints: Report issues with Toyota and the National Highway Traffic Safety Administration (NHTSA).
Know your legal rights: Lemon laws may entitle you to a refund, replacement, or cash settlement depending on your state’s regulations.
Owners facing persistent defects should seek legal advice to explore their options. Lemberg Law offers free, no-cost consultations and works on a contingency fee basis, meaning you do not pay unless you win your case.
Repeated issues with your 2025 Sienna? You may be entitled to compensation under lemon law. Call Lemberg Law now for a free case review.
About the Author:
Sergei Lemberg is an attorney focusing on consumer law, class actions related to automotive issues, and personal injury litigation. With nearly two decades of experience, his areas of practice include Lemon Law (vehicle defects), Debt Collection Harassment, TCPA (illegal robocalls and texts), Fair Credit Reporting Act, Overtime claims, Personal Injury cases, and Class Actions. He has consistently been recognized as the nation's "most active consumer attorney." In 2020, Mr. Lemberg represented Noah Duguid before the United States Supreme Court in the landmark case Duguid v. Facebook. He is also the author of "Defanging Debt Collectors," a guide that empowers consumers to fight back against debt collectors and prevail, as well as "Lemon Law 101: The Laws That Lemon Dealers Don't Want You to Know."
