JEEP
08-138-25
Manufacturer communications
- Publication date
- 2025-04-30
- Received by NHTSA
- 2025-05-06
- NHTSA record numbers
- 11017972
Manufacturer summary
Original wording in English
"Flash: Air Suspension Control Module (ASCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Codes (DTC):
• U0300 - Internal Control Module Software Incompatibility.** Customers may experience one or more of the following:
• Ride height disabled.
• Suspension will lower, but will not raise.
• Instrument Panel Message (IPC) message ""selected ride height not permitted due to payload"" appears. This bulletin involves reprogramming the ASCM with the latest available software. "
• U0300 - Internal Control Module Software Incompatibility.** Customers may experience one or more of the following:
• Ride height disabled.
• Suspension will lower, but will not raise.
• Instrument Panel Message (IPC) message ""selected ride height not permitted due to payload"" appears. This bulletin involves reprogramming the ASCM 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
U0300Internal Control Module Software Incompatibility.** Customers may experience one or more of the followingCheck 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 | GRAND CHEROKEE | 2024 |
| Jeep | GRAND CHEROKEE 4XE | 2024 |
| Jeep | GRAND CHEROKEE L | 2024 |