U05BD code meaning
Invalid Data Received From Localization and Mapping Module
What U05BD means
Hands-free and highly automated driving needs to know the car's position to lane level and the road ahead from a detailed map. GM handles this in a separate map module (K179) for Super Cruise: it holds a LiDAR-surveyed map that decides where the system may be engaged and receives map and GPS correction data over the air while driving. Bulletin PIT6000 (2021-2023 Escalade, Tahoe, Silverado and others) traces a Service Driver Assist message with B2BA1 to a map that stayed outdated after mostly short trips; on the 2022 Bolt EUV map files were updated by USB (N222360520). Bosch combines satellite positioning with correction data, inertial and wheel-speed signals. No manufacturer documents U05BD; it would flag invalid position or map data, U02BC a missing module.
U05BD at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U05BD
- Hands-free driving not offered on mapped roads
- Service driver assist message
- Lane-level guidance or map-based speed adaptation missing
Common causes of U05BD
- Most likelyMap database outdated because over-the-air updates could not complete
- PossiblePoor satellite reception or faulty GNSS antenna and cable
- PossibleModule software not matching the assistance controller
- Less likelyLocalization and mapping module internally defective
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Localization mapping module
What each part of U05BD means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| BD | The exact fault in that area. |
What to do next
- Note U05BD 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 U05BD
What does U05BD mean?
U05BD means "Invalid Data Received From Localization and Mapping Module". Hands-free and highly automated driving needs to know the car's position to lane level and the road ahead from a detailed map. It is a generic code, so it means the same on every make.
Is it safe to drive with U05BD?
U05BD does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U05BD fail an emissions test?
U05BD 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 U05BD to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. This is a job for a workshop.
Will U05BD clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.