Widespread issues with the automatic transmission, including whining, slipping, and complete failure, often occurring outside the warranty period. Estimated repair cost: $3,000 - $6,000.

Air Bag System Malfunctions

Concerns related to the air bag system, including warning lights and potential non-deployment issues, with several recalls affecting this component. Estimated repair cost: $500 - $1,500.

Complaints regarding service brake performance, including spongy pedal feel and unexpected braking behavior. Estimated repair cost: $200 - $800.

Fuel Tank Filling Issue

A known design flaw where the fuel tank cannot be filled completely, leading to premature nozzle shut-off. Estimated repair cost: $100 - $500.

CARFOCALvehicle research

2020 Toyota Highlander Maintenance guide

Name: Maintenance dataset for 2020 Toyota Highlander
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed14 Critical Recalls

MAINTENANCE SUMMARY

The 2020 Toyota Highlander presents a significant maintenance burden, primarily due to widespread powertrain issues, specifically with its automatic transmission. Owners report transmission whining, slipping, and outright failure, often occurring just outside the warranty period, leading to substantial repair costs.

View Critical Issue: Transmission Failure

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

27 TSBs | 28 Recalls

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Key Takeaways

Transmission failures are the most significant concern, often occurring outside of warranty and leading to high repair bills.
Air bag system issues, including recalls and complaints, require careful monitoring and verification of recall completion.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance