My tom Tom Sat nav works well the majority of the time, but there are two annoying things about it which I hope someone can tell me how to address.
1) Often, when I type in a postcode I want to travel to, Tom Tom plots the route telling me it is the "fastest route." This is not always true. I suspected it may be wrong sometimes, and so I tested it on routes I know. Several times Tom Tom has given me a route taking me on a far more circuitous route than I usually would take.
2) On a couple of occasions, Tom Tom has told me to turn right at a junction where there is a "No Right Turn" sign.
Is there anything I can do about this? Is there any kind of "update" I can download? Also, the journey times it gives are often wildly inaccurate. How does it calculate how often a journey will take?
You haven't said what version of Tom Tom you have but on mine you can go into the settings and change the average speeds for different types of road. It is these average speeds that Tom Tom uses to calculate the fastest route. If the average speed for a motorway is set at 70mph and a B road at 30mph then Tom Tom will send you down the motorway even if this doubles the distance
to get to your destination the way you wish to go
spit the journey into to two parts from a to b first
stop. then program it in to your destination
a -----------b stop b-----------------------destination.