A P0420 diagnostic code on your 2024 Ford Bronco indicates that Bank 1's catalytic converter efficiency has dropped below acceptable thresholds. On a brand-new vehicle, this requires investigation.
2024 Bronco Engine Options
- 2.3L EcoBoost 4-cyl: 300 hp (single bank)
- 2.7L EcoBoost V6: 330 hp (dual bank)
- 3.0L EcoBoost V6 Raptor: 418 hp (dual bank)
P0420 on New Vehicle
True converter failure is rare on new vehicles unless damaged. Consider:
- O2 Sensor Issues: More likely than converter failure
- Physical Damage: From off-road use
- Software Calibration: May need updates
Warranty Coverage
A 2024 Bronco is fully covered (absent misuse damage).