Speedometer loses programming after vehicle is shut off.
This is due to a noisy ignition switch causing the microchip to enter safe mode and reset to factory settings. This is neither an issue with the vehicle nor the instrument. NVU can custom load a program that delays the chip startup to aviod this condition ifneeded. NVU can provide this service at no charge generally in one day. Contact the NVU tech team at 248-850-5482 and have code GSC005 availalable