If your 2022 Hyundai Tucson is displaying a P0305 code indicating a cylinder 5 misfire, this code requires diagnostic investigation. The redesigned 2022 Tucson offers only four-cylinder powertrains: the 2.5L naturally aspirated, 1.6L turbo hybrid, and 1.6L turbo plug-in hybrid. With only four cylinders, P0305 is technically anomalous.
2022 Tucson - New Generation
The 2022 Tucson is a fourth-generation complete redesign. Engine options include the 2.5L Smartstream I-4 (187 hp), 1.6L Turbo Hybrid (227 hp), and 1.6L Turbo PHEV (261 hp). All configurations use four-cylinder engines. The V6 option from previous generations was discontinued.
Understanding the Anomalous Code
Since the 2022 Tucson has exactly four cylinders regardless of powertrain, a P0305 code cannot represent an actual cylinder 5 misfire. This is an erroneous diagnostic code.
Possible Causes
As a first-year redesign, ECM software calibration issues could cause incorrect codes. Scan tool communication errors may misread data. Low 12-volt battery voltage affects computer reliability. Check for TSBs addressing known issues.
Diagnostic Steps
Use a Hyundai-compatible scan tool to verify codes. Check for TSBs for the 2022 Tucson. Test battery condition. If actual misfire symptoms exist, focus on cylinders 1-4. Clear the erroneous code.