I found this:
1- Insert your key into the ignition and turn it to position II. The instrument lights will come on. The car is now in synchronisation mode for approx 10 seconds.
2- During this period, leave the key in the ignition and press the open button, then the lock
button on your fob in turn and repeat until the locks open and close as they should.
3- Once the locks operate, the fob is synchronised. Some cars will also acknowledge by flashing the interior lights a couple of times or similar. All will lock and unlock the car once completed.

 

Thanks Pat 100, tried that did not work. Here is another weird happening, yesterday it was frosty remote control worked even the buttons in car worked, drove for about half an hour got home and guess what, not working again, did not work for the rest of the day, this morning same thing happened again.?????

 

Did you ever sort this got same thing on my van

 

thank you pat. worked perfectly for me. did take about 10 goes locking and unlocking with the dash lock and the fob lock. much appreciated.