* The ignition switch is not fully turned off. Make sure that the key is turned all the way to the "off" position. If it is not, the dashboard lights will stay on.
* The door switch is not working properly. The door switch is responsible for turning off the dashboard lights when the door is opened. If the door switch is not working properly, the dashboard lights will stay on even when the door is open.
* There is a problem with the wiring. If there is a problem with the wiring, the dashboard lights may stay on even if the ignition switch is turned off and the door switch is working properly.
If you are unable to figure out why the dashboard lights are staying on, you should take your Jetta to a qualified mechanic for diagnosis and repair.
