Electrical System Malfunctions

Issues with the electrical system are noted, including potential cascading failures indicated by multiple warning lights appearing simultaneously. This can involve complex control module or wiring harness problems. Estimated repair cost: $200 - $1,500+.

While less frequent, sidewall damage to tires is a reported concern. This can be caused by road hazards or improper tire pressure. Estimated repair cost: $150 - $400.

Forward Collision Avoidance Warnings

False or frequent warnings from the forward collision avoidance system can be a nuisance and may indicate sensor or software issues. Estimated repair cost: $300 - $1,000+.

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2021 Cadillac CT4 Maintenance guide

Name: Maintenance dataset for 2021 Cadillac CT4
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed3 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Cadillac CT4, with an average reliability score of 5.5, presents a maintenance profile requiring attention to its powertrain and electrical systems. Recurring engine and transmission complaints, alongside electrical system issues, are the primary concerns.

View Critical Issue: Engine and Transmission Issues

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Reliability Score

Est. Annual Maintenance Cost

$300 - $600

TSBs & Recalls

103 TSBs | 10 Recalls

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Key Takeaways

Prioritize vigilance for the engine and transmission due to reported issues.
Regular electrical system checks are advised, especially for warning lights.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance