For the first time half a mile into our journey an alarm sign came on similar to the seat belt warning noise and stayed on for the remaining 6 miles to home , no warning lights and everything checked ok , following day another short journey of 5 miles and same noise yet stopped a mile into the return journey, then set off to local garage to get it checked over journey of 8 miles no alarm so garage could not assess return journey of 8 miles complete silence , any advise or ideas would be appreciated, love the car and first problem to have had