Shift to Park Malfunction

The vehicle fails to recognize it is in Park, preventing shutdown and locking. This is a prevalent issue often linked to electrical system faults or transmission control module problems. Estimated repair cost: $500 - $1,500.

Electrical System Faults

Beyond the 'Shift to Park' issue, owners report various electrical problems including battery drain, non-functioning accessories, and lighting issues. These can stem from faulty modules, wiring harness problems, or battery issues. Estimated repair cost: $200 - $1,000.

Complaints include issues with the transmission, such as rough shifting or failure to engage gears, and engine problems like radiator leaks. The 'Shift to Park' issue is a subset of this category. Estimated repair cost: $500 - $3,000+.

Some owners report headlights that are dimmer than expected, impacting nighttime visibility. This can be due to bulb degradation, wiring issues, or faulty headlight control modules. Estimated repair cost: $100 - $300.

CARFOCALvehicle research

2019 GMC Acadia Maintenance guide

Name: Maintenance dataset for 2019 GMC Acadia
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2019 GMC Acadia, with an 'Average' public reliability verdict, requires diligent maintenance. Focus on the prevalent 'Shift to Park' electrical/powertrain malfunction, which can cause significant operational and safety issues.

View Critical Issue: Powertrain Issues

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Reliability Score

Est. Annual Maintenance Cost

$300 - $600

TSBs & Recalls

192 TSBs | 3 Recalls

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Key Takeaways

The 2019 GMC Acadia has an 'Average' public reliability rating but a 'Below Average' LLM reliability verdict due to significant complaint volume.
The 'Shift to Park' malfunction is a critical and frequent issue impacting electrical and powertrain systems.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance