U0485Invalid Data Received From Radio
- Generic OBD-II code · Network
- Turns on the check-engine light
- How the car detects it
- U0485 means the radio or centre stack still transmits but a receiving module rejects its frames. GM's 2025 tables (25OBDG03B, 25OBDG04B) describe the body control module checking alive rolling counters, protection values, checksums and CRCs of centre-stack signals, among them HVAC control requests: 8 failures in 10 samples, for some signals 14 in 18 or 15 in 16, set it at least 5 s after power-up, with the partial network active for 3 s, power mode Run and over 11 V; Type B. GM PIE0807A covers a MIL with U0485 and U1962 on the 2024 Traverse and Acadia 2.5 L. Stellantis lists it in 08-046-23, 08-014-24 and 08-101-25 (Grand Cherokee, Wagoneer, Pacifica), stored by the amplifier or with a MIL; radio software cures it. U0184 is lost contact.
- What you may notice
- Radio resets, black screen or audio sources inoperative
- Climate controls on the screen do not respond
- MIL on some vehicles
- Likely causes
- LikelyRadio or infotainment software level with known message errors, fixed by an update
- PossibleRadio resetting or waking late so that counters and checksums no longer match
- RareLow supply voltage or a disturbed bus connection to the centre stack
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.