# Service bulletin 18\-006\-26

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11028233
- Published by NHTSA: 2026\-02\-04
- Manufacturer's number: 18\-006\-26
- Manufacturer's date: 2026\-01\-29
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● \*\*P08A6 – Gear Lever Position Sensor System – Multiple Sensor Correlation \(Manual Transmission Only\). ● P152F – Engine Hood Switch 2 / Engine Hood Switch 1 Correlation.\*\* ● P0300 \- Multiple Cylinder Misfire. ● P152E \- Engine Hood Switch 2 Circuit High. ● P0032 \- O2 Sensor 1/1 Heater Circuit High. ● P0038 \- O2 Sensor 1/2 Heater Circuit High ● P0052 \- O2 Sensor 2/1 Heater Circuit High ● P0058 \- O2 Sensor 2/2 Heater Circuit High. ● P0132 \- O2 Sensor 1/1 Circuit High. ● P0138 \- O2 Sensor 1/2 Circuit High. ● P0152 \- O2 Sensor 2/1 Circuit High. ● P0158 \- O2 Sensor 2/2 Circuit High ● P2100 \- Electronic Throttle Control Motor Circuit Customers may also comment on one or more of the following: ● \*\*"Service Transmission” message on in the Instrument Panel Cluster \(IPC\) due to clutch slip detection \(Manual Transmission Only\). NOTE: Customers might experience wheel spin or slippage and the PCM could interpreted the wheel spin or slippage as slipping the clutch too much and to avoid clutch damage, the customer may see the message in the IPC. ● Vehicle is in limp home mode.\*\* ● Spark knock/detonation sound from the engine at idle. \*\*Other software enhancements included: ● Engine oil pump in high pressure mode with cold engine oil to improve valvetrain component reliability.\*\* This bulletin involves reprogramming the PCM with the latest available software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028233-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028233-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Trouble codes named

P0032, P0038, P0052, P0058, P0132, P0138, P0152, P0158, P0300, P08A6, P152E, P152F, P2100

## Vehicles listed

- 2021 JEEP GLADIATOR

## Recalls for the same vehicles and component

- [24V652000](/recalls/nhtsa/24V652000.md), 2024-09-05: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [9100900](/bulletins/11037346.md), 2026-09-17, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [16C Combo Rev3](/bulletins/11036183.md), 2026-08-13, Warranty extension: ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp \(CEL/MIL\). \(JT\) vehicles: CEL/MIL and cargo lamp indicator function are swapped. \(JL\) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non\-compliant to the OBD II regulation.
- [112862](/bulletins/11034372.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. MOTOR \- BLOWER WITH WHEEL
- [112863](/bulletins/11034371.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. MOTOR \- BLOWER WITH WHEEL
- [9100835](/bulletins/11033957.md), 2026-06-18, Service bulletin: ELECTRICAL SYSTEM. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [S2623000040](/bulletins/11033896.md), 2026-06-16, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock.
- [111760](/bulletins/11033882.md), 2026-06-16, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. MOTOR AND LINKAGE \- WINDSHIELD WIPER
- [08\-208\-26 REV. A](/bulletins/11032842.md), 2026-05-20, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.
- [08\-208\-26](/bulletins/11032824.md), 2026-05-20, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle
- [08\-208\-26](/bulletins/11032647.md), 2026-05-13, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle

JSON: [/v1/bulletins/11028233](/v1/bulletins/11028233)

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