JEEP
18-005-26 REV.A
Manufacturer communications
- Publication date
- 2026-02-17
- Received by NHTSA
- 2026-03-05
- NHTSA record numbers
- 11029673
Manufacturer summary
Original wording in English
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P08A6 - Gear Lever Position Sensor System – Multiple Sensor Correlation. (Manual Transmission and NA Only)
• P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. (NA Only)
• P0300 - Multiple Cylinder Misfire. 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 and NA 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.(NA Only)
• 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. (NA Only) This bulletin involves reprogramming the PCM with the latest available software.
• P08A6 - Gear Lever Position Sensor System – Multiple Sensor Correlation. (Manual Transmission and NA Only)
• P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. (NA Only)
• P0300 - Multiple Cylinder Misfire. 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 and NA 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.(NA Only)
• 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. (NA Only) This bulletin involves reprogramming the PCM with the latest available software.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Jeep
P0300Multiple Cylinder MisfireJeep
P08A6Gear Lever Position Sensor System – Multiple Sensor CorrelationJeep
P152FEngine Hood Switch 2 / Engine Hood Switch 1 CorrelationCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Jeep | WRANGLER | 2021 |