"Initially we received reports about the Mr T voiced Sat-Navs." said Austin Billingsworth of the RAC. "Several people have said that when they try to program them for journeys to an airport the devices refuse to plan a route and instead only respond with ‘I ain't gittin' on no plane, fool!’"
Initially thought to be a mohawk-wearing celebrity problem, the RAC has also received hundreds of reports from all over the country from people who use a variety of celebrity voices to spice up long journeys.
"Several users have reported that updating their systems to use the voice of George Michael has left any journey through London causing the system to become horribly confused around the area of Hampstead Heath," said Mr Billingsworth.
The RAC says that other drivers in London have reported that David Pleat voiced Sat-Navs repeatedly urge the motorist to slow down if they attempt to travel over 5mph in red-light districts.

Motoring organisations have stated that drivers should be wary of any unexpected commands from James Dean Sat-Navs and young women should be extremely wary of receiving a lift from anyone whose device is voiced by Edward Kennedy.