While most of us nowadays depend on sat navs to get from A to B without getting horribly lost or resorting to looking at a map, a new report suggests they are also very good at getting us into trouble.
In fact, they could even cause us to have to invest in new car parts to replace those damaged as a result of their dodgy directions.
According to figures from confused.com, through accidents caused by wrong or misleading directions, sat navs caused £203 million worth of damage to drivers' vehicles on UK roads over the past year alone.
Almost a third (31 per cent) of British motorists have forked out for repairs to sat nav related damage, spending between £100 to £ 500 pounds.
And the problems don't end at physical damage, sat navs also cause us a great deal of mental anguish, the poll revealed, with a whopping 83 per cent of drivers having at some point been misled by their GPS over the past year.
This resulted in over half of those surveyed admitting they had screamed at their devices, while 45 per cent have confessed to feeling angry and frustrated while behind the wheel because of this.
Misleading sat navs can also cause a hit to the wallet in other ways, with 68 per cent of the drivers clocking up unnecessary miles, and so wasting fuel, as a result.
Gareth Kloet, head of car insurance at Confused.com, said that the survey reveals that the sat nav "is not always the blessing it was once hailed to be".
"Motorists appear to be sighting the device as a source of frustration and danger," he said.
Confused.com has now launched a new sat nav 'blackspot' map, highlighting regions where motorists have encountered faults with their sat navs directions.