The manufacturer’s record · Page 2 of 2

2019 Hyundai TUCSON
Manufacturer communications & TSBs.Page 2

Original record summaries, dates and identifiers for this model-year. Records 101–143 of 143, ordered newest first. Dated records on this page: Apr 15, 2019–Jun 3, 2020.

Back to 2019 Hyundai TUCSON problems & recalls
Read the applicability before drawing a conclusion.

This archive includes service bulletins, warranty notices, software instructions and other communications. Records may repeat or supersede earlier instructions. A model-year association is not proof that a document covers every engine, trim, VIN or reported symptom, or that a repair is free.

NHTSA download snapshot: Sep 28, 2026. These are communication associations for this vehicle, not unique defects. How records are joined and counted.

Jun 3, 2020Service Bulletin/Repair Instructions

20-01-004H-1

NHTSA communication ID: 10177126

NHTSA source summary · Original PDF not reviewed by Recallfolio

Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.

Source components: ELECTRICAL SYSTEM:SOFTWARE · ENGINE.

Source record 10177126 at NHTSA
Jun 3, 2020Service Bulletin/Repair Instructions

20-01-024H

NHTSA communication ID: 10177125

NHTSA source summary · Original PDF not reviewed by Recallfolio

Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results. Consult the Hyundai Warranty Policy & Procedures and the below chart to determine New or Reman engine usage.

Source components: ELECTRICAL SYSTEM:SOFTWARE · ENGINE.

Source record 10177125 at NHTSA
May 21, 2020Service Bulletin/Repair Instructions

20-AT-018H

NHTSA communication ID: 10176195

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 3.  Check Engine light on  DTC P0880/P088000 - TCM Power signal error open/short  Transmission stuck in 4th gear fail-safe  Harsh shift into Drive and Reverse

Source components: POWER TRAIN.

Source record 10176195 at NHTSA
May 21, 2020Service Bulletin/Repair Instructions

20-AT-017H

NHTSA communication ID: 10176194

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 4.  Check Engine light on  DTC P0880/P088000 - TCM Power signal error open/short  Transmission stuck in 4th gear fail-safe  Harsh shift into Reverse and Drive

Source components: POWER TRAIN.

Source record 10176194 at NHTSA
May 6, 2020Service Bulletin/Repair Instructions

20-SS-002H(1)

NHTSA communication ID: 10176182

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides information on tire maintenance best practices and procedures for dealers and customers to maximize tire life and performance.

Source components: TIRES · WHEELS.

Source record 10176182 at NHTSA
May 1, 2020Service Bulletin/Repair Instructions

20-BD-007H-1

NHTSA communication ID: 10176178

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior surfaces using recommended safe chemical products.

Source components: EQUIPMENT.

Source record 10176178 at NHTSA
Apr 23, 2020Service Bulletin/Repair Instructions

20-EE-003H

NHTSA communication ID: 10174808

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides information on identifying dealer stock vehicles with either: • A Battery SOC alert - low Battery State of Charge (SOC) at or below 50%. • A 30 Day alert - vehicle has not started and reported an SOC in 30 days.

Source components: ELECTRICAL SYSTEM · EQUIPMENT.

Source record 10174808 at NHTSA
Apr 17, 2020Service Bulletin/Repair Instructions

20-AT-016H

NHTSA communication ID: 10174807

NHTSA source summary · Original PDF not reviewed by Recallfolio

The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:

Source components: EQUIPMENT ADAPTIVE/MOBILITY · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL · POWER TRAIN.

Source record 10174807 at NHTSA
Mar 25, 2020Service Bulletin/Repair Instructions

20-AT-012H

NHTSA communication ID: 10173549

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with a (Check Engine Light on) and one or more of the DTC listed below, follow the repair procedure and replace the input/output speed sensor and oil pressure harness.

Source components: SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR.

Source record 10173549 at NHTSA
Mar 25, 2020Service Bulletin/Repair Instructions

20-AT-011H

NHTSA communication ID: 10173548

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.

Source components: SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR.

Source record 10173548 at NHTSA
Mar 23, 2020Service Bulletin/Repair Instructions

20-BD-007H

NHTSA communication ID: 10173546

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products.

Source components: EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10173546 at NHTSA
Mar 18, 2020Service Bulletin/Repair Instructions

20-EE-002H(1)

NHTSA communication ID: 10173545

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin describes the mandatory procedure to submit battery test data electronically for battery warranty claims by running the GDS Battery Claim App. The App must be run right after an incident battery is removed from the vehicle or after a battery charge is completed which qualifies for a warranty. It must be run at any time between RO open and close dates.

Source components: ELECTRICAL SYSTEM.

Source record 10173545 at NHTSA
Feb 27, 2020Service Bulletin/Repair Instructions

Campaign T3G DBP

NHTSA communication ID: 10172228

NHTSA source summary · Original PDF not reviewed by Recallfolio

Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedures on TSB #20-01-004H (supersedes TSB #19-01-006H-4) rotate the crankshaft, perform the bearing inspection (if crankshaft does rotate) and/or replace the engine based on the crankshaft/bearing inspection results.

Source components: ENGINE AND ENGINE COOLING · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10172228 at NHTSA
Feb 20, 2020Service Bulletin/Repair Instructions

20-AT-008H

NHTSA communication ID: 10172227

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.

Source components: ELECTRICAL SYSTEM · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY · POWER TRAIN.

Source record 10172227 at NHTSA
Feb 20, 2020Service Bulletin/Repair Instructions

20-AT-007H

NHTSA communication ID: 10172225

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.

Source components: ELECTRICAL SYSTEM · EQUIPMENT · POWER TRAIN.

Source record 10172225 at NHTSA
Feb 18, 2020Service Bulletin/Repair Instructions

20-01-004H - The

NHTSA communication ID: 10172224

NHTSA source summary · Original PDF not reviewed by Recallfolio

Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.

Source components: ELECTRICAL SYSTEM:SOFTWARE · ENGINE AND ENGINE COOLING · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10172224 at NHTSA
Feb 18, 2020Service Bulletin/Repair Instructions

20-01-006H

NHTSA communication ID: 10172223

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound on certain vehicles, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM.

Source components: ELECTRICAL SYSTEM:SOFTWARE · ENGINE AND ENGINE COOLING · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10172223 at NHTSA
Feb 18, 2020Service Bulletin/Repair Instructions

Campaign 953 Dea

NHTSA communication ID: 10172220

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure. Watch this video to learn more. The KSDS software continuously monitors engine vibrations for unusual patterns that develop as an engine connecting rod bearing wears abnormally that could later cause engine seizure. If vibrations caused by bearing wear start to occur, the malfunction indicator lamp will blink continuously, an audible chime will sound and the vehicle will be placed in a temporary engine protection mode with reduced power and acceleration. At that time, Diagnostic Trouble Code (DTC) P1326 will be recorded in the ECM. In addition, Hyundai will extend the warranty to 10 years and 120,000 miles (up from 100,000 miles) for original and subsequent owners of the covered vehicles for engine repairs needed because of excessive connecting rod bearing damage.

Source components: ELECTRICAL SYSTEM:SOFTWARE · ENGINE AND ENGINE COOLING · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10172220 at NHTSA
Feb 5, 2020Service Bulletin/Repair Instructions

20-SS-001H

NHTSA communication ID: 10172142

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin describes the requirements for all wheel alignment and/or vehicle tracking claims and best practices when diagnosing and conducting alignment-related repairs for all models and model years.

Source components: SUSPENSION.

Source record 10172142 at NHTSA
Jan 16, 2020Service Bulletin/Repair Instructions

20-BE-001H

NHTSA communication ID: 10170883

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides guidelines to inspect the USB, head unit, and multi-box for common connection conditions. 2. This bulletin presents guidelines to inspect for common Android Auto and Apple CarPlay connection conditions. 3. This bulletin provides physical differences between the USB 2.0 port and USB 3.0 port.

Source components: ELECTRICAL SYSTEM.

Source record 10170883 at NHTSA
Jan 3, 2020Service Bulletin/Repair Instructions

20-ST-001H

NHTSA communication ID: 10170896

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.

Source components: STEERING.

Source record 10170896 at NHTSA
Jan 2, 2020Service Bulletin/Repair Instructions

20-AT-001H

NHTSA communication ID: 10170899

NHTSA source summary · Original PDF not reviewed by Recallfolio

This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).

Source components: POWER TRAIN.

Source record 10170899 at NHTSA
Dec 17, 2019Service Bulletin/Repair Instructions

19-01-042H

NHTSA communication ID: 10170512

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides information and procedures for collecting OBD ?In Use Monitor Performance Ratio? (IUMPR) data on certain 2019-2020MY vehicles at California dealers. This reporting is mandated by CARB (California Air Resources Board). Data is no longer submitted to Hyundai by datasheet and dealer email. Data is sent electronically by GDS when the procedure of this bulletin is followed.

Source components: EQUIPMENT.

Source record 10170512 at NHTSA
Dec 17, 2019Service Bulletin/Repair Instructions

19-AT-021H-1

NHTSA communication ID: 10170511

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing a vehicle with a transmission slipping concern, follow the Service Procedure shown below and perform a stall test. This TSB provides a procedure to test each clutch in the transmission. If the vehicle fails the stall test, replace the transmission. ? PASS: Stall speed is between 1700~2900 rpm (See shop manual for stall speed). ? FAIL: Engine revs to redline limit (6,000~6,500 rpm). If so, replace the transmission.

Source components: EQUIPMENT · POWER TRAIN.

Source record 10170511 at NHTSA
Nov 15, 2019Service Bulletin/Repair Instructions

19-AT-024H

NHTSA communication ID: 10169380

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing a vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. ? Diagnostic trouble codes: ?P0705 - Range switch sensor circuit ?P0706 - Range switch range/performance ?P0707 - Range switch - open circuit ?P0708 - Range switch - short circuit or multiple inputs ? Symptoms: ?Malfunction Indicator Light (MIL) illuminated ?4th gear fail-safe ?No gear indication in cluster ?Intermittent no engine crank/no start in ?P? or ?N? with or without MIL or DTC.

Source components: ELECTRICAL SYSTEM.

Source record 10169380 at NHTSA
Nov 4, 2019Service Bulletin/Repair Instructions

19-BE-011H-1

NHTSA communication ID: 10169370

NHTSA source summary · Original PDF not reviewed by Recallfolio

The Blind Spot Detection (BSD) or Blind-Spot Collision Warning (BCW) is a system that measures the speed of and distance from the following vehicles by using two magnetic wave radar sensors attached in the rear bumper. The BSD/BCW detects vehicles within the blind spot zone and gives off an alarm (visual and audible). The two magnetic radar sensors provide these functions for BSD/BCW: ? Senses other vehicles in the BSD/BCW zone and turns on the BSD/BCW warning lamp for the driver. The warning lamp starts blinking, along with an audible sound, when the driver turns on the turn signal lamp to enter the lane where another vehicle is driving.

Source components: BACK OVER PREVENTION · LANE DEPARTURE.

Source record 10169370 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

19-01-005H-1

NHTSA communication ID: 10167769

NHTSA source summary · Original PDF not reviewed by Recallfolio

The warranty coverage for the engine long block has been extended to 10 years or 120,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.

Source components: ENGINE · EQUIPMENT.

Source record 10167769 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

19-01-006H-4

NHTSA communication ID: 10167768

NHTSA source summary · Original PDF not reviewed by Recallfolio

Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and install a wire harness extension and/or replacement engine based on the inspection results.

Source components: ELECTRICAL SYSTEM:WIRING · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.

Source record 10167768 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

19-01-002H-4

NHTSA communication ID: 10167767

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound on certain vehicles, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM.

Source components: ELECTRICAL SYSTEM:SOFTWARE · ENGINE.

Source record 10167767 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

Campaign 953 Dea

NHTSA communication ID: 10167765

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure.

Source components: ELECTRICAL SYSTEM:SOFTWARE · ENGINE · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10167765 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

Campaign T3G Dea

NHTSA communication ID: 10167764

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai has launched a Service Campaign for applicable vehicles with 2.0L Turbo and 2.4L GDI engines that may experience the Check Engine warning lamp illuminated with DTC P132600.

Source components: ELECTRICAL SYSTEM · ENGINE · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10167764 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

19-01-005H-1

NHTSA communication ID: 10167269

NHTSA source summary · Original PDF not reviewed by Recallfolio

The warranty coverage for the engine long block has been extended to 10 years or 120,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.

Source components: ENGINE AND ENGINE COOLING.

Source record 10167269 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

19-01-006H-4

NHTSA communication ID: 10167268

NHTSA source summary · Original PDF not reviewed by Recallfolio

Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and install a wire harness extension and/or replacement engine based on the inspection results.

Source components: ENGINE AND ENGINE COOLING.

Source record 10167268 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

19-01-002H-4

NHTSA communication ID: 10167267

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound on certain vehicles, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM.

Source components: ENGINE AND ENGINE COOLING.

Source record 10167267 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

Campaign 953 Dea

NHTSA communication ID: 10167260

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure.

Source components: ENGINE AND ENGINE COOLING.

Source record 10167260 at NHTSA
Oct 28, 2019Service Bulletin/Repair Instructions

Campaign T3G Dea

NHTSA communication ID: 10167258

NHTSA source summary · Original PDF not reviewed by Recallfolio

Hyundai has launched a Service Campaign for applicable vehicles with 2.0L Turbo and 2.4L GDI engines that may experience the Check Engine warning lamp illuminated with DTC P132600.

Source components: ENGINE AND ENGINE COOLING.

Source record 10167258 at NHTSA
Oct 14, 2019Service Bulletin/Repair Instructions

19-GI-006H

NHTSA communication ID: 10167253

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides instruction detailing the proper methodology for scanning and uploading captured GDS data files to the Techline Repository. Compliance with this bulletin ensures that the GDS data files are correctly transferred and matched with a Techline Case number.

Source components: EQUIPMENT ADAPTIVE/MOBILITY.

Source record 10167253 at NHTSA
Aug 12, 2019Service Bulletin/Repair Instructions

19-AT-016H

NHTSA communication ID: 10165456

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with a ?Check Engine? light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.

Source components: ELECTRICAL SYSTEM · EQUIPMENT ADAPTIVE/MOBILITY · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.

Source record 10165456 at NHTSA
Aug 12, 2019Service Bulletin/Repair Instructions

19-AT-015H

NHTSA communication ID: 10165455

NHTSA source summary · Original PDF not reviewed by Recallfolio

If you are servicing an applicable vehicle with a ?Check Engine? light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness

Source components: ENGINE · EQUIPMENT ADAPTIVE/MOBILITY · POWER TRAIN:AUTOMATIC TRANSMISSION.

Source record 10165455 at NHTSA
Jun 4, 2019Service Bulletin/Repair Instructions

19-AT-012H

NHTSA communication ID: 10163279

NHTSA source summary · Original PDF not reviewed by Recallfolio

This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).

Source components: POWER TRAIN.

Source record 10163279 at NHTSA
May 16, 2019Service Bulletin/Repair Instructions

19-BE-009H

NHTSA communication ID: 10161751

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides information for troubleshooting of the Blind-Spot Collision Warning (BCW/BSD) system whenever it exhibits Diagnostic Trouble Code (DTC) C120B/D or C160A.

Source components: FORWARD COLLISION AVOIDANCE · LANE DEPARTURE.

Source record 10161751 at NHTSA
Apr 22, 2019Service Bulletin/Repair Instructions

19-ST-001H

NHTSA communication ID: 10160106

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.

Source components: STEERING.

Source record 10160106 at NHTSA
Apr 15, 2019Service Bulletin/Repair Instructions

19-FL-003H

NHTSA communication ID: 10160098

NHTSA source summary · Original PDF not reviewed by Recallfolio

This bulletin provides the procedure to write the Vehicle Identification Number (VIN) during the replacement of the Engine Control Module (ECM) or Powertrain Control Module (PCM). Once the VIN has been programmed to the ECM/PCM, it cannot be removed or overwritten.

Source components: ELECTRICAL SYSTEM · POWER TRAIN.

Source record 10160098 at NHTSA