Opposition NDIS spokeswoman Melissa McIntosh said there was a perception among some voters that the Liberals remained stuck in the past, and that it would be a good time for the party to revisit its values.
The Liberal MP from western Sydney acknowledged she had been blunt with her calls for change, but said she wanted to see her party's policies resonate with voters.
"We are pretty much the heartland of Australia," she told Nine's Today program on Tuesday.
"When the heartland of Australia tells you that you need to get more cut through to get more voters on your side, then you need to listen to the people."
The MP's comments were described as a "brain fart" by some of her parliamentary colleagues, while former prime minister Tony Abbott said ''it would hardly be the Liberal Party if it weren't the Liberal Party'', according to The Australian.
Current frontbencher Michaelia Cash said there was a while to go until the next federal election and an overhaul was not needed.
"Australians don't want us to rebrand, they want us to change the country that is actually going backwards under Larissa Waters, the Australian Greens, and Anthony Albanese," she told Nine's Today.
As Pauline Hanson's party has surged in popularity, at one point polling higher than Labor, the coalition hasn't ruled out a potential preferencing deal in upcoming elections.
But a more recent poll shows that following the One Nation leader's first ever National Press Club address earlier in June, her personal approval ratings have dipped.
Opposition Leader Angus Taylor has failed to reverse dire polling after ousting Sussan Ley in February, as the coalition's primary vote dropped to a record low of 17 per cent in the latest Newspoll.
Labor sits at 33 per cent, while One Nation follows at 29 per cent.
Nationals Leader Matt Canavan has downplayed the chances of a deal with Senator Hanson, saying the coalition was best placed putting its own foot forward.
"We're going to keep fighting, maintain the rage, and if you want that change, you've got to put the Labor Party last," he told Sky News.
