Local MSP John Lamont is urging Scottish Borders Council to rethink its plans to cut funding for the No.120 bus from Hawick to Kelso.
Petitions have been started calling for SBC to retain the service which faces the funding axe on August 15.
Mr Lamont, who has been inundated with messages from concerned residents, told the Hawick News: “While the service may not be the most heavily used, it is vital for many residents in the Borders, particularly the elderly and those travelling to work. For those residents who don’t have a car, this service really is a lifeline.
“A lot of people have spoken to me at my surgeries about the importance of this service. It is great to see the community councils working together to show the extent to which local residents want this service maintained.”
He added: “While plenty of funding can be found for other projects in the central Borders, it is vital that public transport links are maintained for other Borders communities. The SNP-led council needs to think twice about cutting the funding for this vital service.”