JEEP
08-279-26
Manufacturer communications
- Publication date
- 2026-07-15
- Received by NHTSA
- 2026-07-23
- NHTSA record numbers
- 11035165
Manufacturer summary
Original wording in English
Flash: Heating, Ventilation And Cooling (HVAC) Module Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC):
• B1148-2A - Left Rear Heated Seat Switch - Stuck. Customers may also comment on one or more of the following:
• Rear heated/vented seats stop working.
• The rear heated/vented seat button is not illuminating. This bulletin involves reprogramming the HVAC module with the latest software.
• B1148-2A - Left Rear Heated Seat Switch - Stuck. Customers may also comment on one or more of the following:
• Rear heated/vented seats stop working.
• The rear heated/vented seat button is not illuminating. This bulletin involves reprogramming the HVAC module with the latest 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
B1148-2ALeft Rear Heated Seat Switch - StuckCheck 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 | 2026 |
| Jeep | GRAND CHEROKEE 4XE | 2026 |
| Jeep | GRAND CHEROKEE L | 2026 |