P1326 — Hyundai/Kia Knock Sensor Detection System (KSDS) — rod-bearing knock warning (manufacturer-specific).

Code P1326 is a standard OBD-II diagnostic trouble code: Hyundai/Kia Knock Sensor Detection System (KSDS) — rod-bearing knock warning (manufacturer-specific).

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P1326 across 118 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P1326 118 patterns · top 60

2021 Hyundai Tucson

engine — Engine Stalling / Sudden Power Loss (Limp Mode)

2020 Hyundai Santa Fe

engine — Excessive Oil Consumption (Burning)

2020 Hyundai Santa Fe

powertrain — Loss of engine power / limp mode

2020 Hyundai Santa Fe

electrical — Knock sensor / engine performance

2020 Hyundai Tucson

electrical — Engine misfiring / limp mode with check engine light

2020 Kia Sportage

engine — Sudden Loss of Power / Limp Mode

2020 Kia Optima

engine — Limp mode and power loss with P1326 code

2020 Kia Optima

powertrain — Knock Sensor Failure / P1326 Code

2020 Kia Sorento

powertrain — Engine knocking and P1326 code

2020 Kia Optima

electrical — Knock sensor fault / limp mode

2019 Hyundai Tucson

engine — Knock sensor repeated failure

2019 Hyundai Tucson

electrical — Engine stall and loss of acceleration

2019 Hyundai Tucson

powertrain — Engine bearing failure (connecting rod)

2019 Hyundai Tucson

cruise control — P1326 knock detection, reduced power / limp mode

2019 Kia Soul

engine — Engine Knock Sensor / Rod Bearing Defect

2019 Kia Sportage

engine — Engine Knock and Piston Failure

2018 Hyundai Sonata

electrical — Knock Sensor / Engine Control System Limp Mode

2018 Hyundai Santa Fe Sport

engine — Excessive Oil Consumption

2018 Hyundai Tucson

powertrain — Dual-clutch transmission hesitation and delayed engagement

2018 Hyundai Tucson

engine — Excessive Oil Consumption

2018 Hyundai Sonata

powertrain — Rod bearing failure / internal engine damage

2018 Kia Optima

engine — Excessive Oil Consumption / Internal Engine Wear

2018 Kia Soul

engine — Rod Bearing Failure / Connecting Rod Damage

2018 Kia Sportage

engine — Excessive oil consumption leading to low oil pressure and engine damage

2018 Kia Sorento

engine — Excessive oil consumption without warning lights

2018 Kia Soul

powertrain — Sudden loss of power / stalling while driving

2017 Hyundai Tucson

cruise control — Acceleration hesitation and delay from stop

2017 Hyundai Tucson

electrical — Engine Stalling / Loss of Power at Highway Speed

2017 Hyundai Santa Fe

engine — Excessive oil consumption

2017 Hyundai Sonata

engine — Engine Misfires / Loss of Power / Stalling

2017 Hyundai Santa Fe Sport

engine — Excessive Oil Consumption

2017 Hyundai Sonata

powertrain — Excessive oil consumption and internal engine damage

2017 Hyundai Santa Fe

powertrain — Catastrophic engine seizure and oil consumption

2017 Hyundai Santa Fe Sport

powertrain — Abnormal internal oil loss with connecting rod bearing deterioration

2017 Hyundai Sonata

electrical — Engine stalling and power loss

2017 Hyundai Veloster

engine — Rod bearing failure / connecting rod bearing wear

2017 Hyundai Sonata

cruise control — Power loss and limp mode (knock sensor code P1326)

2017 Hyundai Santa Fe Sport

cruise control — Knock sensor code and cylinder compression loss

2017 Kia Sorento

electrical — Engine stall during highway driving

2017 Kia Sorento

engine — Catastrophic Engine Seizure / Complete Engine Failure

2017 Kia Soul

engine — Rod Bearing Failure / Rod Knock

2017 Kia Optima

engine — Power Loss / Hesitation / Knock Sensor Failures

2017 Kia Sportage

engine — Engine Seizure / Sudden Loss of Power

2017 Kia Optima

electrical — Knock Sensor Detection System (KSDS) fault / electrical cascade failure

2017 Kia Optima

powertrain — Excessive Oil Consumption

2017 Kia Soul

powertrain — Oil burn / low oil pressure leading to catastrophic engine failure

2017 Kia Optima

cruise control — Knock Sensor Failure Causing Acceleration Loss

2016 Hyundai Tucson

electrical — Engine Power Loss and Stalling with Dashboard Light Activation

2016 Hyundai Sonata

engine — Excessive oil consumption (internal burning)

2016 Hyundai Sonata

powertrain — Engine knock sensor detection system (KSDS) activation and connecting-rod bearing wear

2016 Hyundai Veloster

engine — Connecting rod bearing wear and failure

2016 Hyundai Tucson

engine — Excessive Oil Consumption

2016 Hyundai Sonata

electrical — Engine Stalling and Power Loss While Driving

2016 Hyundai Santa Fe

engine — Excessive Oil Consumption / Oil Starvation

2016 Hyundai Sonata

brakes — ABS and sensor malfunction

2016 Hyundai Santa Fe Sport

engine — Connecting rod bearing wear and premature failure (Theta II engine defect)

2016 Hyundai Sonata

cruise control — Loss of power and inability to accelerate (limp mode)

2016 Kia Soul

engine — Catalytic converter overheating and failure

2016 Kia Soul

powertrain — Engine Knock, Rod Bearing Wear, and Catastrophic Failure

2016 Kia Sorento

engine — Head Gasket and Head Bolt Failure (3.3L V6 GDI)

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →