The leader of the Conservative group on Bristol City Council is calling for a vote of no confidence in First Bus.
Councillor Peter Abraham says the company's refusal to listen to passengers over timetable changes is the last straw.
First Bus says minor adjustments have been made - and it will review the situation in the next few months.
Laura Makin-Isherwood reports.
More top news
A print of a girl holding a balloon by Bristol artist Banksy has sold for £56,250 - twice the expected price and more than a Picasso.
There will be plenty of sunny intervals this morning but expect light rain and a chilly breeze this afternoon.
A food sculptor and cheese fanatic from Gloucestershire has created a BRIE-lliant Nativity scene made entirely from local cheddar.