If the gearbox software detects any issue, it can revert to ‘failsafe mode’ causing the car to run on one gear to prevent further damage to the gearbox. You might see flashing “PRNDS” lights on your dashboard, or see other codes on your dashbox to indicate the reason behind shifting to failsafe mode. To be able to diagnose this, you’ll need to visit a highly advanced DSG diagnosis centre, which we assist with to determine the real cause of the problem and to replace the broken link in the chain.