🔧 FixIt
🟡

P0300 on HYUNDAI TUCSON

Severity
Medium
NHTSA Reports
6
Most Affected
2017, 2015, 2016

What P0300 Means on Your HYUNDAI TUCSON

Real HYUNDAI TUCSON Owner Reports (Source: NHTSA Complaints Database)

"The contact owns a 2015 Hyundai Tucson. The contact stated that the engine was seized. The contact was unaware if any warning lights were illuminated. The vehicle was towed to the local dealer and the mechanic retrieved fault codes: P0014, P0300, P0301, and P0441."

— 2015 HYUNDAI TUCSON owner • ENGINE • Filed 04/15/2022

"My 2016 Hyundai Tucson has had power and acceleration issues since I purchased it brand new in 2016 from the dealership. When trying to accelerate onto the freeway, or trying to turn onto busy traffic the engine would rev but not pick up speed causing a dangerous situation when traffic is present."

— 2016 HYUNDAI TUCSON owner • ENGINE • Filed 03/26/2024

"My 2017 Hyundai Tucson 1.6 liter is experiencing severe engine issues that closely mirror those subject to recent class action lawsuits. The engine exhibits excessive oil consumption. I have experienced a sudden loss of power on roadways in traffic as well as on the highway."

— 2017 HYUNDAI TUCSON owner • ENGINE • Filed 07/14/2025

"The check engine light started flashing and the vehicle would not go over 25 miles per hour. Thankfully I was pulling into a parking lot when the reduction in speed occurred. If this had happened on the interstate (which I commute on regularly) it could have been extremely dangerous."

— 2017 HYUNDAI TUCSON owner • VEHICLE SPEED CONTROL,ENGINE • Filed 07/10/2023

"After having a level 1 drivability test/inspection test done, code P0300, P1111, P301, P302 & P303 came up. Cylinder compression was tested and found cylinder 3 was at 30 PSI. The technician told me that this is a common issue with this make/model and I should take it to the dealer."

— 2017 HYUNDAI TUCSON owner • ENGINE • Filed 01/21/2023

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P0300 on HYUNDAI TUCSON

83.3%
16.7%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2015
1
2016
1
2017
4

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P0300 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026