Hi Guys need a bit of help if possible.

Yesterday I was driving to oxford and the gps vs sat nav maps got a little lost in fields etc - no issues as the part of A43 could be newer than maps.

On return journey slightly different route back I noticed the sat nav got lost again but this time when I was back on the M1 the nav was trying to reroute me out of what I think was Leamington Spa.

Such that getting to my destination (as programmed in) the nav was still trying to reroute me and showed 60 miles to go still.

Today parked up at home the GPS location on the map thinks I’m somewhere else...not quite sure where but zooming out looks to be near Coventry.

Any ideas to fault? Car is booked in but not for couple of weeks...