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P1326 on KIA SORENTO

Q: "What does P1326 mean on a Kia Sorento?"

"It points to knock sensor detection system / engine protection mode. FixIt found 32 NHTSA reports for this exact code/vehicle pair, so confirm with an enhanced scan and the OEM service procedure."

Q: "What are common symptoms of P1326 on Kia Sorento?"

"Flashing Check Engine Light; Limp mode with reduced RPM or poor acceleration; Engine knock, stall, or no-restart after power loss."

Q: "What should I do first for P1326?"

"Check VIN-specific Hyundai/Kia campaigns, recalls, and warranty extensions first. Then inspect wiring/connectors, verify voltage/ground, and check VIN-specific recalls or campaigns where applicable."

Knock Sensor Detection System / engine protection mode

NHTSA Reports

Severity

High

Most Affected

2017, 2016, 2013

Crashes / Fires

0 / 0

Source: NHTSA Complaints Database · SAE J2012

Last reviewed: Jun 3, 2026 Last updated: Jun 3, 2026

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What P1326 Means on Your KIA SORENTO

P1326 on Kia Sorento points to knock sensor detection system / engine protection mode. FixIt matched 32 NHTSA owner reports for this exact code/vehicle pair, so use this page to prioritize the most likely symptoms, components, and next checks before replacing parts.

32 Kia Sorento owners have reported this code/reference in NHTSA complaints across 2011-2020. Hyundai and Kia reports most often tie P1326 to flashing check-engine lights, limp mode, knock-sensor detection, and engine-failure risk.

Real KIA SORENTO Owner Reports

Source: NHTSA Complaints Database

"There was a recall to add a engine knocking warning device. When I got the recall in June of 2021, my engine was already knocking. I took the car into Rapid City Kia Dealership for repair on June 24th. I still do not know if it has been approved for repair. The recall stated there was a warranty extension to provide li"

— 2011 KIA SORENTO owner · ENGINE · Filed 06/24/2021

"TOOK 2012 SORENTO IN FOR ENGINE/BEARINGS RECALL AT 92K MILES (WHICH INCLUDED AN OIL CHANGE BY DEALERSHIP). NEXT OIL CHANGE AT 98K THERE WAS APPRX 1 QUART OF OIL LEFT. NEVER BURNED OIL PRIOR TO THIS RECALL CHECK. THOUGHT DEALERSHIP MADE MISTAKE. I USUALLY CHANGE THE OIL EVERY 5K MILES. OIL WAS CHANGED AND CHECKED AGAIN"

— 2012 KIA SORENTO owner · ENGINE · Filed 01/04/2019

"MY CAR STALLED GOING AROUND 65-70 MPH ON THE HIGHWAY, AND POWER STEERING AND ACCELERATION COMPLETELY CEASED. AFTER PULLING OVER I WAITED A MINUTE AND TRIED TO START IT AGAIN AND MY ENGINE HAS A VERY LOUD KNOCKING SOUND COMING FROM IT, AND IT DRIVES EXTREMELY ROUGH. I NEVER HAD ANY WARNING SIGNS PRIOR TO THIS, AND NOW M"

— 2013 KIA SORENTO owner · UNKNOWN OR OTHER,ENGINE · Filed 02/27/2020

"I ALREADY FILED A CLAIM THE OTHER DAY, BUT NOW MY 2013 SORENTO HAS GOTTEN EVEN WORSE! MY CAR STALLED ON THE HIGHWAY GOING AROUND 65-70 MPH, AND POWER STEERING AND ACCELERATION COMPLETELY CEASED. AFTER GETTING HOME AND CALLING TO REPORT THIS, I TOOK IT FOR A TEST DRIVE, AND MY ENGINE HAS A VERY LOUD KNOCKING SOUND COMIN"

— 2013 KIA SORENTO owner · UNKNOWN OR OTHER,ENGINE · Filed 11/20/2019

"The contact owns a 2014 Kia Sorento. The contact stated that while driving at an undisclosed speed and attempting to accelerate, the contact heard an abnormal knocking sound coming from the engine compartment, and the vehicle inadvertently lost motive power and was only able to accelerate to 30 MPH. The check engine wa"

— 2014 KIA SORENTO owner · ENGINE AND ENGINE COOLING · Filed 06/05/2023

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

'11

'12

'13

'14

'15

'16

'17

'18

'19

'20

Common Causes on KIA SORENTO

Based on NHTSA complaint component analysis for this vehicle.

ENGINE 50%

POWER TRAIN,ENGINE 6.2%

ELECTRICAL SYSTEM,ENGINE 6.2%

UNKNOWN or OTHER,ENGINE 6.2%

ENGINE and ENGINE COOLING 6.2%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P1326 mean on a Kia Sorento? ▾

It points to knock sensor detection system / engine protection mode. FixIt found 32 NHTSA reports for this exact code/vehicle pair, so confirm with an enhanced scan and the OEM service procedure.

What are common symptoms of P1326 on Kia Sorento? ▾

Flashing Check Engine Light; Limp mode with reduced RPM or poor acceleration; Engine knock, stall, or no-restart after power loss.

What should I do first for P1326? ▾

Check VIN-specific Hyundai/Kia campaigns, recalls, and warranty extensions first. Then inspect wiring/connectors, verify voltage/ground, and check VIN-specific recalls or campaigns where applicable.