U0512 code meaning
Invalid Data Received From Seat Control Module D
What U0512 means
U0512 has a documented GM case that goes beyond comfort functions. On the 2020 Cadillac CT5 with option UGN, the image processing module, which handles camera data for driver assistance, could set U0512 and display Service Driver Assist. GM named software as the cause, told technicians to clear the code and recheck, and to follow normal diagnosis only if it returned at once (PIC6408, revised as PIC6408A in October 2020). The bulletin does not say which seat information the camera module uses. In other cars, module D is simply a fourth seat unit; Ford's matching of letters to generic slots is shown by U024B/U024C for its seat modules G and H. Lost contact with module D gives U0211.
U0512 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0512
- Service Driver Assist message (Cadillac CT5)
- Driver assistance features temporarily unavailable
- Seat functions served by module D not responding
Common causes of U0512
- Most likelySoftware in the receiving module (Cadillac CT5 image processing module)
- PossibleSeat module D configuration or software mismatch
- Less likelyDamaged harness or connector under the seat
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Seat control module d
What each part of U0512 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 12 | The exact fault in that area. |
What to do next
- Note U0512 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0512
What does U0512 mean?
U0512 means "Invalid Data Received From Seat Control Module D". U0512 has a documented GM case that goes beyond comfort functions. It is a generic code, so it means the same on every make.
Is it safe to drive with U0512?
U0512 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0512 fail an emissions test?
U0512 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0512 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2.5 hours of work. This is a job for a workshop.
Will U0512 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.