Electrical System Issues (Interior Lights Stay On)

Some owners experience issues with interior lighting remaining on, even when the vehicle is off. This can be caused by faulty body control modules or related electrical components. Estimated repair cost: $200 - $500.

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2021 Buick Envision Maintenance guide

Name: Maintenance dataset for 2021 Buick Envision
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Buick Envision, with a 'Below Average' reliability verdict and 28 logged complaints, requires diligent attention to its fuel system and powertrain. Owners should prioritize inspections for potential fuel pump control module failures and transmission slipping, which have been reported at low mileages.

View Critical Issue: Transmission Slipping

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Reliability Score

Est. Annual Maintenance Cost

$500 - $800

TSBs & Recalls

77 TSBs | 7 Recalls

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Key Takeaways

Prioritize fuel system and powertrain inspections due to documented failures.
Address electrical system concerns promptly to prevent battery drain.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance