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, CHEVROLET
Reported code forms C027B
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEEDED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE BUZZ OR HUM NOISE IS HEARD IN THE RIGHT FRONT AT TIMES. ALSO MAY HAVE A…
BUICK, CHEVROLET
Reported code forms C027B
This Preliminary Information communication provides information to the technician on the steps needed to diagnose and repair vehicles that may have buzz or hum noise is heard in the right front at times. Also may have a…
CHEVROLET, GMC
Reported code forms C027B
GMC?CHEVROLET: LOWER THAN NORMAL BRAKE PEDAL FEEL BEFORE OR AFTER A MASTER CYLINDER REPLACEMENT. DURING DIAGNOSIS A DTC C027B MAY BE FOUND STORED IN EBCM. *PE
Check vehicle applicability
14A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | LACROSSE | 2014 |
| Buick | LACROSSE | 2013 |
| Buick | LACROSSE | 2012 |
| Buick | REGAL | 2014 |
| Buick | REGAL | 2013 |
| Buick | REGAL | 2012 |
| Chevrolet | EQUINOX | 2011 |
| Chevrolet | EQUINOX | 2010 |
| Chevrolet | IMPALA | 2014 |
| Chevrolet | MALIBU | 2014 |
| Chevrolet | MALIBU | 2013 |
| Chevrolet | MALIBU ECO | 2013 |
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.