What does code P1563 mean?

Q: What does code P1563 mean?

Cruise Vehicle Speed Set Speed Difference Too High. P1563 on a GM vehicle means the cruise control module has detected that the actual vehicle speed differs from the set speed by more than the calibrated threshold for a sustained period. The computer is not reporting a sensor failure; it is flagging a mismatch between what you asked the cruise system to hold and what the vehicle is actually doing.

DTC codes / GM codes / P1563

P1563 · GMCruise Vehicle Speed Set Speed Difference Too High

P1563 on a GM vehicle means the cruise control module has detected that the actual vehicle speed differs from the set speed by more than the calibrated threshold for a sustained period. The computer is not reporting a sensor failure; it is flagging a mismatch between what you asked the cruise system to hold and what the vehicle is actually doing.

SystemPowertrain

Code typeGM specific

SeverityLow

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.