What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
3Original wording in English
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms B127E
This Preliminary Information communication advises the technician that Diagnostic Trouble Code B127E in the Human Machine Interface with Regular Production Option Code U42 or UWG will be current when playing a DVD or…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms B127E
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT DIAGNOSTIC TROUBLE CODE B127E IN THE HUMAN MACHINE INTERFACE WITH REGULAR PRODUCTION OPTION CODE U42 OR UWG WILL BE CURRENT WHEN PLAYING A DVD OR…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms B127E
This Preliminary Information communication advises the technician that Diagnostic Trouble Code B127E in the Human Machine Interface with Regular Production Option Code U42 or UWG will be current when playing a DVD or…
Check vehicle applicability
4A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.