2024 Toyota Sienna Safety Report

2024 Toyota Sienna shows early signs of critical braking and power loss issues amidst lack of official safety ratings.

47Complaints
1Recalls
55/100Reliability Score
2Crash Reports
6Injuries
Most reported components: Unknown Or Other (9)Service Brakes (9)Seats (4)Tires (3)Structure (3)Engine (2)Visibility/Wiper (2)Vehicle Speed Control,Forward Collision Avoidance (2)Vehicle Speed Control,Unknown Or Other,Engine (1)Power Train,Engine (1)

AI Safety Analysis for the 2024 Toyota Sienna

The 2024 Toyota Sienna, despite being a new model, has accumulated 47 NHTSA complaints, including 2 crashes and 6 injuries, which is notable for a vehicle in its first model year. A significant pattern emerging from the complaints revolves around the braking system and unexpected acceleration, with multiple reports of the vehicle lurching forward or accelerating while the brakes are being applied. This is a critical safety concern, as evidenced by complaints like 'Intermittent unexpected acceleration during braking' and 'When decelerating...the car accelerates and then I have to slam on the breaks.' Beyond braking issues, there are recurring problems with loss of motive power, where the vehicle suddenly stalls or powers down while driving, as described in complaints such as 'car powered down. I had to coast to side of highway' and 'vehicle suddenly lost motive power and stalled.' Other notable issues include power sliding door malfunctions, trunk door failures, and suspension concerns, particularly bottoming out. The single recall for the 2024 Sienna pertains to 'EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR' by Vantage Mobility, LLC, affecting wheelchair restraints, which could lead to an unsecured wheelchair and increased injury risk. NHTSA crash test ratings for the 2024 Toyota Sienna are currently 'N/A' across all categories (Overall, Frontal, Side, Rollover), meaning there is no official government crash test data available yet to assess its structural safety performance. This lack of data, combined with the emerging patterns of critical mechanical and system failures from consumer complaints, suggests a cautious approach is warranted. The high number of complaints for a new model, especially those related to fundamental driving functions like braking and acceleration, indicates potential areas of concern that prospective buyers should be aware of.

Reliability Score

The 2024 Toyota Sienna receives a reliability score of 55 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates average reliability — some notable concerns exist that prospective buyers should be aware of.

Known Issues for the 2024 Toyota Sienna

The following issues have been identified from NHTSA complaint data and owner reports for the 2024 Toyota Sienna:

IssueSeverityFrequencyTypical Mileage
Unexpected Acceleration During Braking
Vehicle lurches forward or accelerates while the brake pedal is being applied, requiring additional pressure to stop.		 High Common new-25000 miles
Loss Of Motive Power/Stalling
Vehicle suddenly loses power, stalls, or powers down while driving, sometimes at highway speeds.		 High Occasional new-25000 miles
Power Sliding Door Malfunction
Sliding doors fail to detect obstructions, squish objects, or fail to open/close properly.		 Medium Occasional new-25000 miles
Trunk/Liftgate Malfunction
Trunk door fails to close, opens randomly, requires assistance, or has strut failures/explosions.		 Medium Occasional new-25000 miles
Suspension Bottoming Out/Low Clearance
Vehicle's suspension bottoms out easily, with measured clearance significantly lower than specifications.		 Medium Occasional new-25000 miles
Third-Row Seat Not Locking In Stowed Position
Third-row seat bounces up and down over bumps, lacking a positive lock when stowed, posing a potential projectile risk.		 Medium Rare new-25000 miles

Common Problems Reported by Owners

Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2024 Toyota Sienna:

Service Brakes 19% of complaints

Frequent complaints of unexpected acceleration while braking, poor braking performance, and brake release issues.

Unknown Or Other 19% of complaints

A variety of miscellaneous issues including system malfunction errors, power loss, and general vehicle behavior anomalies.

Seats 8% of complaints

Issues with second-row seat movement during braking and third-row seat not locking in stowed position.

Tires 6% of complaints

Reports of tire bulges and low tire pressure warnings.

Structure 6% of complaints

Problems with trunk/liftgate operation and strut failures.

Engine 4% of complaints

Complaints related to engine powering down or loss of motive power.

Vehicle Speed Control,Forward Collision Avoidance 4% of complaints

Issues related to unexpected acceleration and pre-collision system errors.

Frequently Asked Questions About the 2024 Toyota Sienna

Is the 2024 Toyota Sienna safe?

Based on NHTSA data, the 2024 Toyota Sienna has 47 complaints, including 2 crashes and 6 injuries, which is high for a new model. There are significant concerns regarding unexpected acceleration during braking and sudden loss of motive power. Official NHTSA crash test ratings are not yet available, so a comprehensive safety assessment is pending.

What are common problems with the 2024 Toyota Sienna?

The most reported issues for the 2024 Toyota Sienna are related to 'SERVICE BRAKES' (19% of complaints) and 'UNKNOWN OR OTHER' (19%), often involving unexpected acceleration while braking or sudden loss of power. Other common problems include 'SEATS' (8%) with movement and locking issues, and 'TIRES' (6%) with bulges or pressure warnings.

Has the 2024 Toyota Sienna been recalled?

Yes, the 2024 Toyota Sienna has had 1 recall. This recall, issued by Vantage Mobility, LLC, addresses certain vehicles equipped with QRT-Deluxe and QRT-Max wheelchair restraints where the retractors may not properly secure a wheelchair, increasing the risk of injury during transit.

Are there issues with the Sienna's braking system?

Yes, the braking system is a significant area of concern, accounting for 19% of complaints. Multiple reports describe unexpected acceleration while braking, the vehicle lurching forward, or a general feeling of poor braking performance, requiring excessive pedal pressure to stop.

What should I know about the 2024 Sienna's engine and power train?

While 'ENGINE' complaints are 4% of the total, there are critical reports of the vehicle suddenly losing motive power or stalling while driving, which is a serious safety hazard. This suggests potential underlying issues with the hybrid system or power delivery.

Buyer Advice

Our recommendation: Given the high number of early complaints, particularly concerning critical safety functions like braking and power delivery, and the absence of official crash test ratings, prospective buyers should exercise caution and thoroughly investigate these reported issues before purchasing a 2024 Toyota Sienna.

NHTSA Data Summary for 2024 Toyota Sienna

This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2024 Toyota Sienna. The data includes 47 consumer complaints filed by vehicle owners, 1 manufacturer-initiated safety recalls, 2 reported crashes, 6 reported injuries, and safety rating assessments associated with this vehicle.

All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.

Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.