Errrmmm......... Tow truck?? This was strange. I was approaching Innsbruck (default scenery). Using the SFP I used auto-brake 3 (carbon brakes), spoilers, reverse. During the roll-out I pressed my brakes in order to disengage the auto-brake - nothing happened. The aircraft came to a stop. I set the auto-brake switch to OFF (it had illuminated that auto-brakes were disengaged at this point as a result of the aircraft stopping), and the light extinguished. I applied power to taxi off the runway. Nothing. It was acting like the brakes were on. I was stuck! The brake temps rose to 1.2 - what is this figure? I looked outside - no sign of fire. I ended up terminating the flight on the runway. Best regards,Robin.

It has been said and re-said over and over again, not to mention PMDG wrote about it in the Introduction pdf. DOUBLE tap the brakes to disengage autobrakes.