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
4Original wording in English
BUICK, CADILLAC, CHEVROLET
Reported code forms C056D
This technical bulletin provides repair information to correct a customer concern of "Steering Assist Is Reduced" Message and One of The Following DTCs Are Set: C056D, U0415.
BUICK, CADILLAC, CHEVROLET
Reported code forms C056D
This preliminary informational bulletin provides repair information on correcting a customer concern of intermittent service power steering message displayed on DIC, and DTC C056D, C0475 or U0131 may be set.
CADILLAC
Reported code forms C056D
This preliminary informational bulletin provides a procedure on reprogramming the suspension control module for conditions of Service Suspension System, Service Leveling System and/or Selected Speed Limit Exceeded…
CADILLAC
Reported code forms C056D
THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES A PROCEDURE ON REPROGRAMMING THE SUSPENSION CONTROL MODULE FOR CONDITIONS OF SERVICE SUSPENSION SYSTEM, SERVICE LEVELING SYSTEM AND/OR SELECTED SPEED LIMIT EXCEEDED…
Check vehicle applicability
7A 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.