Reports indicate engine power loss or limp mode events, particularly during acceleration or in adverse weather. This can stem from issues with the fuel system, ignition, or engine control module. Estimated repair cost: $500 - $1,500.

Complaints include brake squealing, reduced effectiveness, and potential issues with the parking brake. Regular inspection and fluid changes are critical for maintaining brake system integrity. Estimated repair cost: $300 - $800.

While primarily related to recalls, some complaints mention airbag system issues. Ensuring recall remedies are completed is paramount for safety. Estimated repair cost: $200 - $1,000+.

Reports of panoramic sunroofs experiencing issues such as popping noises, cracking, or even shattering. This can be related to glass stress or installation defects. Estimated repair cost: $500 - $2,000+.

CARFOCALvehicle research

2021 Acura RDX Maintenance guide

Name: Maintenance dataset for 2021 Acura RDX
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed2 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Acura RDX, with 5 recalls and 135 complaints, presents an 'Average' public reliability score. Key concerns include engine power loss, brake system issues, and airbag system faults, necessitating vigilant maintenance and inspection.

View Critical Issue: Engine Power Loss

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

5 TSBs | 5 Recalls

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Unlock the Full 2021 Acura RDX Maintenance Guide

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

Key Takeaways

Vigilance regarding engine power loss and brake system performance is advised.
Regular maintenance, including fluid changes and filter replacements, is key to longevity.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance

2021 Acura RDX Maintenance guide

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed2 Critical Recalls

MAINTENANCE SUMMARY

View Critical Issue: Engine Power Loss

Subscribe to Recall Alerts Subscribe to Recall Alerts

Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

5 TSBs | 5 Recalls

CarFocal account required

Unlock the Full 2021 Acura RDX Maintenance Guide

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

Key Takeaways

Vigilance regarding engine power loss and brake system performance is advised.
Regular maintenance, including fluid changes and filter replacements, is key to longevity.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance