The P0302 diagnostic code on your 2024 Hyundai Tucson indicates that cylinder 2 is experiencing misfires. The 2024 Tucson continues with the fourth-generation platform offering the 2.5L Smartstream, 1.6L turbo hybrid, and 1.6L plug-in hybrid powertrains. As a newer model, warranty coverage should apply to most repairs.
2024 Powertrain Lineup
The Tucson offers three powertrain configurations, all inline-4 with cylinder 2 second from front. The 2.5L Smartstream uses port injection for simplicity. The hybrid systems pair the 1.6L turbo GDI with electric motors for efficiency. Each system has unique characteristics affecting diagnosis.
Potential Misfire Causes
Manufacturing defects in ignition coils, spark plugs, or fuel injectors can cause misfires even on new vehicles. Software calibration issues affecting fuel delivery or timing are possible. Assembly irregularities, while uncommon, can occur on any production vehicle.
Symptom Identification
Four-cylinder misfires produce obvious symptoms: rough idle, vibration, and hesitation. Hybrid models may partially mask symptoms during electric operation. The check engine light illuminates when the misfire condition is detected.
Diagnostic Steps
Scan for all codes including hybrid-specific codes if equipped. Check for TSBs affecting the 2024 model year. Inspect ignition components for defects. Test fuel system operation appropriate to your powertrain type. Dealer diagnosis ensures proper warranty coverage.
Warranty Service
Your 2024 Tucson is fully covered under Hyundai's comprehensive warranty. The 10-year/100,000-mile powertrain warranty provides extensive engine coverage. Document symptoms and visit the dealer for diagnosis and repair. Most engine issues on new vehicles are manufacturer-covered.