The DUP's David Herron wants Banbridge Council to write to the health minister urging him to address the issue.
"I was alarmed," said Councillor Herron, "to read about Northern Ireland's ambulances, that some of them are as much as eight years-old, with 200,000 to 300,000 miles on them.
"I think it's deplorable in this day and age that any of the emergency services should have vehicles with that many miles on them.
"I know that engines these days will do a lot of miles, but I think that in this modern day we need to move on, so I would call on the minister to try and get money to inject into the ambulance fleet to get them renewed."
Mr. Herron said that in an emergency a great deal depended on the vehicles carrying emergency services in response and a possible breakdown didn't bear thinking about.
"I think new vehicles should be purchased as soon as possible," he said, "and hopefully Banbridge Council will get in touch with the minister to try and get something done about this."