U0211Lost Communication With Seat Control Module D
- Generic OBD-II code · Network
- How the car detects it
- U0211 reports that seat control module D is absent from the bus. GM bulletin 21-NA-131, which replaces PIT5796A (2020–2021 Escalade, Tahoe, Suburban, Yukon and 2021 Corvette, CT4, CT5), names it the memory seat module: the driver assistance controller EOCM records U0211 and invalid data U0512 when software in the memory seat module misbehaves. Auto entry and exit or memory recall then fail, the backrest stops short of full recline, and Super Cruise may drop out with a service message. Reprogramming the driver seat memory module is the cure. Honda bulletin 25-051 (2024 Prologue) removes the same code with new software for the radio control module A11. No MIL.
- What you may notice
- Seat memory and easy entry/exit inoperative
- Backrest will not recline fully
- Driver assistance message or Super Cruise unavailable
- Likely causes
- LikelyMemory seat module software (GM 21-NA-131, reprogram)
- PossibleRadio control module software (Honda Prologue 25-051)
- RareSeat harness or connector under the driver seat
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.