Frequent complaints of a sudden lunge forward or brake release sensation, particularly during turns or over bumps. This suggests potential issues with the hybrid system's regenerative braking or ABS/ESC control logic. Estimated repair cost: $800 - $1,200.

This category includes rear entertainment system obstructing visibility, key fob issues, spontaneous sunroof shattering, and hybrid system malfunctions. Estimated repair cost: $500 - $1,200.

Complaints related to windshield cracking and wiper malfunctions. Estimated repair cost: $150 - $500.

Various electrical issues, including potential 12V battery drain. Estimated repair cost: $100 - $500.

CARFOCALvehicle research

2023 Toyota Sienna Maintenance guide

Name: Maintenance dataset for 2023 Toyota Sienna
Creator: Carfocal

v1.0Updated May 30, 2026Daniel Wilson4 Sources Analyzed

MAINTENANCE SUMMARY

The 2023 Toyota Sienna requires diligent maintenance, with a strong focus on its braking system due to frequent complaints of unexpected behavior. Owners should also be aware of visibility obstructions from the rear entertainment system and potential sunroof shattering.

View Critical Issue: Service Brakes

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

5 TSBs | 2 Recalls

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Key Takeaways

Prioritize inspection of the braking system due to frequent complaints of unexpected behavior.
Be aware of visibility obstructions caused by the rear entertainment system.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance

2023 Toyota Sienna Maintenance guide

v1.0Updated May 30, 2026Daniel Wilson4 Sources Analyzed

MAINTENANCE SUMMARY

View Critical Issue: Service Brakes

Subscribe to Recall Alerts Subscribe to Recall Alerts

Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

5 TSBs | 2 Recalls

CarFocal account required

Unlock the Full 2023 Toyota Sienna Maintenance Guide

Create a free account to reveal the full service schedule, repair costs, and deeper diagnostic data.

Key Takeaways

Prioritize inspection of the braking system due to frequent complaints of unexpected behavior.
Be aware of visibility obstructions caused by the rear entertainment system.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance