Exterior Lighting Failures

Owners report frequent issues with **Daytime Running Lights (DRLs)** and **rear taillight assemblies**, often due to LED component longevity and sealing problems leading to water intrusion. Estimated repair cost: $100 - $500.

Electrical System Malfunctions

A significant number of complaints involve the **electrical system**, ranging from infotainment glitches and battery drain to intermittent power loss and warning lights. These can stem from module issues, wiring problems, or battery failures. Estimated repair cost: $200 - $1,500+.

While less frequent than lighting or electrical issues, engine complaints include critical problems such as starting failures and potential fire hazards. These can be linked to fuel system, ignition, or internal engine component failures. Estimated repair cost: $500 - $5,000+.

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2021 Dodge Durango Maintenance guide

Name: Maintenance dataset for 2021 Dodge Durango
Creator: Carfocal

v1.0Updated May 30, 2026Ryan Davis4 Sources Analyzed21 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Dodge Durango, with a 'Below Average' reliability verdict, demands diligent attention to its electrical and exterior lighting systems, which are the most frequent complaint areas. Proactive inspections of DRLs and taillights are crucial.

View Critical Issue: Engine Issues

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

100 TSBs | 38 Recalls

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Key Takeaways

Prioritize inspection and maintenance of exterior lighting and electrical systems due to frequent complaints.
Adhere strictly to the synthetic oil change schedule for the 6.2L V8 engine.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance