Engine Stalling and Power Loss

A significant number of complaints point to the engine stalling unexpectedly or losing power during operation. This can be related to fuel delivery, ignition system faults, or internal engine issues. Estimated repair cost: $500 - $2,000+.

Owners report rough shifting, delayed engagement, and in some cases, complete transmission failure. These issues can manifest at various mileages, suggesting potential durability concerns. Estimated repair cost: $1,500 - $3,500+.

Exterior Lighting Malfunctions

Issues with exterior lighting, including headlamps and turn signals, are frequently reported. Some of these have been addressed by recalls, but persistent bulb failures or electrical connection problems can occur. Estimated repair cost: $100 - $500.

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2011 Buick Regal Maintenance guide

Name: Maintenance dataset for 2011 Buick Regal
Creator: Carfocal

v1.0Updated May 30, 2026Ryan Davis4 Sources Analyzed

MAINTENANCE SUMMARY

The 2011 Buick Regal presents a below-average reliability verdict, with significant concerns in its engine, electrical, and powertrain systems. Owners should prioritize inspections for engine stalling, power loss, and electrical system failures, which are the most frequent complaints.

View Critical Issue: Transmission Issues

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Reliability Score

Est. Annual Maintenance Cost

$400 - $800

TSBs & Recalls

1,020 TSBs | 6 Recalls

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Key Takeaways

Prioritize maintenance on the engine and electrical systems due to frequent complaints.
Be aware of potential engine stalling and power loss issues.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance