Programming the mileage on a GM cluster (instrument cluster) is generally not something that can be done by the vehicle owner or a non-professional. Odometer tampering or unauthorized mileage adjustment is illegal in many places, as it can lead to fraud and misrepresentation of a vehicle’s history. Odometer readings are important for determining a vehicle’s value and condition.
If you have a legitimate reason to change the mileage reading on your GM vehicle’s instrument cluster, such as replacing a faulty cluster with a new one, it should be done by a qualified professional or a GM dealership. They have the necessary tools and expertise to perform this task while ensuring it’s done accurately and within legal boundaries.
Attempting to program or alter the mileage on your own can lead to legal issues and potential problems when selling or trading in your vehicle. Always follow the appropriate legal and ethical guidelines when dealing with a vehicle’s odometer reading.