What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
5Original wording in English
JEEP, RAM
Reported code forms U0499-00
TBM2.0H Setting U0080-00. Do not replace TBM ECU or SGW. If replacement is determined, Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders, Warranty, Mopar, Customer Pay and Service…
DODGE
Reported code forms U0499-00
Flash: Global Telematics Box Module (TBM) Updates Customers may experience the following and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B22A9-96-ECU Internal…
JEEP, RAM
Reported code forms U0499-00
TBM2.0H Setting U0080-00. Do not replace TBM ECU or SGW. Under certain conditions, SGW Module may take longer to establish Ethernet communication after boot up. If it takes longer than 30 seconds, The TBM2.0H module…
JEEP
Reported code forms U0499-00
Please refer to SOL S268A000004 if you are attempting to replace or repair the telematics box due to DTC U0499-00. This DTC does not cause direct customer impact and cannot be cleared. Engineering is working on TBM…
JEEP
Reported code forms U0499- 00
BCM is Setting The Diagnostic Trouble Code DTC U0499- 00 Invalid Data Received From Telematic Control Module A
Check vehicle applicability
23A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Dodge | CHARGER | 2026 |
| Jeep | CHEROKEE | 2026 |
| Jeep | GRAND CHEROKEE | 2026 |
| Jeep | GRAND CHEROKEE | 2025 |
| Jeep | GRAND CHEROKEE | 2024 |
| Jeep | GRAND CHEROKEE 4XE | 2026 |
| Jeep | GRAND CHEROKEE 4XE | 2025 |
| Jeep | GRAND CHEROKEE 4XE | 2024 |
| Jeep | GRAND CHEROKEE L | 2026 |
| Jeep | GRAND CHEROKEE L | 2025 |
| Jeep | GRAND CHEROKEE L | 2024 |
| Jeep | GRAND WAGONEER | 2026 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.