What does code P1564 mean?

Q: What does code P1564 mean?

Cruise Control System Vehicle Accel Too High. P1564 on a GM vehicle means the cruise control module has detected that the vehicle's acceleration rate exceeded the maximum allowed while cruise control was active. The module monitors vehicle speed changes and flags this code when the acceleration is too high for the commanded cruise control set speed, indicating a fault in the cruise control system or related inputs.

DTC codes / GM codes / P1564

P1564 · GMCruise Control System Vehicle Accel Too High

P1564 on a GM vehicle means the cruise control module has detected that the vehicle's acceleration rate exceeded the maximum allowed while cruise control was active. The module monitors vehicle speed changes and flags this code when the acceleration is too high for the commanded cruise control set speed, indicating a fault in the cruise control system or related inputs.

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.