B0455 code meaning
Display Module Internal Failure
What B0455 means
No J2012 list available to the public includes B0455, and factory literature is silent on it, so the code is unverified. It names an internal fault of a display module, such as the centre screen or a cluster panel, not its wiring or data link. Saab's 2011 9-5 sets B1020 when the radio gets an improper status reply from its display assembly, pointing to an electronics fault or a jammed button; on the 9-4X the same number covers the radio/HVAC control panel. Denso's US11348495B2 lets each display test its own circuit, report to the image ECU and, if it fails, hand speed and warnings to another screen. Hyundai Mobis (US11961434B2) spots a frozen picture through hidden test pixels. Bus loss to a display is U0162 or U0255; a dark screen with live content suggests B0490.
B0455 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0455
- Screen stays black, flickers or freezes on one picture
- Touch input or buttons on the display do not respond
- Information moves to another display or a warning appears
Common causes of B0455
- Most likelyDisplay controller or panel electronics failed
- PossibleSoftware fault, often curable by an update
- Less likelyButton on the display unit jammed and reported as a fault
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Display moduleInstrument cluster
What each part of B0455 means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 55 | The exact fault in that area. |
What to do next
- Note B0455 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 B0455
What does B0455 mean?
B0455 means "Display Module Internal Failure". No J2012 list available to the public includes B0455, and factory literature is silent on it, so the code is unverified. It is a generic code, so it means the same on every make.
Is it safe to drive with B0455?
B0455 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0455 fail an emissions test?
B0455 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 B0455 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will B0455 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.