JEEP
0804122
Manufacturer communications
- Publication date
- 2022-03-01
- Received by NHTSA
- 2022-05-31
- NHTSA record numbers
- 10212373 · 10220770 · 10223152 · 10229114
Multiple filings of the same bulletin are grouped here; original record numbers remain available.
Manufacturer summary
Original wording in English
Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. Customers may experience the following:Active Noise Cancellation (ANC) drone noise at 950 between 1,000 RPM, during a start up.The AMP may set B221F-00 (Amplifier Internal) erroneously, it does not affect Active Noise Cancelation (ANC) performance. If B221F-00 is a stored fault update the AMP with appropriate software. If fault is active, follow normal DTC diagnostics.
Reported code forms
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| Make | Model | Model year |
|---|---|---|
| Jeep | GRAND CHEROKEE | 2021 |