A prevalent electrical issue where the vehicle incorrectly displays a 'Shift to Park' message, often leading to a dead battery and inability to turn off the vehicle. This can stem from issues with the shift interlock system or related electrical components. Estimated repair cost: $300 - $700.

Recalls highlight potential problems with the hydraulic brake system, including caliper piston coating issues and software errors in the Electronic Brake Control Module (EBCM) that can lead to loss of power brake assist. These issues require prompt attention. Estimated repair cost: $500 - $1500.

Engine Performance Concerns

Complaints include reduced engine power and potential oil leaks, possibly related to issues with the PCV system or accelerator pedal position sensors. Regular maintenance and prompt diagnosis are key. Estimated repair cost: $300 - $1000.

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2019 Buick Regal Maintenance guide

Name: Maintenance dataset for 2019 Buick Regal
Creator: Carfocal

v1.0Updated May 30, 2026Daniel Wilson4 Sources Analyzed3 Critical Recalls

MAINTENANCE SUMMARY

The 2019 Buick Regal, with an average reliability verdict, presents a maintenance landscape marked by a high TSB count (169) and significant attention needed for its braking system and electrical components. Owners should prioritize addressing potential 'Shift to Park' faults and ensuring brake system recalls are completed to mitigate common powertrain and electrical system issues.

View Critical Issue: Brake System Issues

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

169 TSBs | 4 Recalls

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Key Takeaways

The 2019 Buick Regal has an average reliability rating, with a notable number of Technical Service Bulletins (TSBs) indicating common issues.
Powertrain and electrical system complaints are the most frequent, with the 'Shift to Park' fault being a significant concern.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance