Sudden Electrical System Failure / Power Loss

Complete loss of power while driving, instrument cluster malfunctions, and inability to shift out of park are frequently reported. This is often linked to the Body Control Module (BCM) or associated wiring. Estimated repair cost: $500 - $1500.

Engine Stalling or Loss of Power

Recurring problems include unexpected engine shutdown, reduced acceleration, and rough idling, sometimes leading to catastrophic failure at low mileage. Issues often stem from the fuel system. Estimated repair cost: $300 - $1200.

Complaints include rough shifting, slipping, and hesitation during acceleration. These can be linked to the transmission control module or torque converter. Estimated repair cost: $800 - $3000+.

Brake Noise or Reduced Performance

Common complaints involve squealing, grinding, or moaning sounds from the brakes, along with longer stopping distances. Estimated repair cost: $200 - $600.

Premature or widespread cracking of the windshield has been reported by owners. Estimated repair cost: $300 - $700.

2021 Ford Bronco Sport Maintenance guide

Name: Maintenance dataset for 2021 Ford Bronco Sport
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed11 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Ford Bronco Sport demands diligent maintenance due to prevalent electrical system failures and powertrain issues. Owners should prioritize inspections for symptoms of sudden power loss, instrument cluster malfunctions, and engine stalling.

View Critical Issue: Transmission Issues

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

28 TSBs | 52 Recalls

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Key Takeaways

Electrical System Failures: The most frequent complaint category, often manifesting as sudden power loss, vehicle shutdown, and instrument cluster malfunctions. Proactive inspection of the Body Control Module (BCM) and related wiring is advised.
Powertrain and Engine Issues: Recurring problems include stalling, loss of acceleration, and rough running, sometimes leading to catastrophic failure at low mileage. Regular checks of fuel injectors, fuel pumps, and transmission control modules are recommended.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance