Loss of braking power, soft brake pedal, or unexpected activation of ABS/brake assist. This is the most frequently reported issue. Estimated repair cost: $400 - $800.

Issues include hard shifting, hesitation during acceleration, and transmission noises like whining. This category accounts for a significant number of complaints. Estimated repair cost: $2,500 - $4,000.

Complaints involve stalling, rough idling, and hesitation. This area has a notable number of reported issues. Estimated repair cost: $500 - $1,500.

Varied issues including infotainment glitches, sensor malfunctions, and warning lights. This category has a significant number of complaints. Estimated repair cost: $300 - $1,000.

Fuel System (Fuel Pump)

Multiple recalls address fuel pump failures, which can lead to stalling. This is a critical safety concern. Estimated repair cost: $600 - $1,200.

CARFOCALvehicle research

2018 Toyota Highlander Maintenance guide

Name: Maintenance dataset for 2018 Toyota Highlander
Creator: Carfocal

v1.0Updated May 30, 2026Daniel Wilson4 Sources Analyzed6 Critical Recalls

MAINTENANCE SUMMARY

The 2018 Toyota Highlander requires diligent maintenance due to a significant number of complaints and recalls, particularly concerning the service brakes and powertrain. Owners should prioritize regular inspections of the brake system and monitor the powertrain for issues like hard shifting.

View Critical Issue: Power Train

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Reliability Score

Est. Annual Maintenance Cost

$600 - $1,000

TSBs & Recalls

96 TSBs | 9 Recalls

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Key Takeaways

Prioritize brake system inspections due to a high volume of related complaints.
Monitor the powertrain for signs of hard shifting, hesitation, or unusual noises.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance