The star dodged questions about the breakfast show and concentrated on her role in ITV's new Christmas charity effort Text Santa.
Neither Christine nor her co-host Adrian Chiles have commented on speculation they face the axe from the early morning show, with BBC Breakfast's Sian Williams among the reported names in the frame to take over.
Christine will co-host the launch show of Text Santa with Phillip Schofield on Sunday December 11 with another show hosted by Ant and Dec and Holly Willoughby on Christmas Eve.
Viewers will be encouraged to donate by text with donations ranging from £1, £5 and £10 being shared between six different charities including Carers UK, Samaritans and Crisis.
There will be appearances by guests including Jonathan Ross, Downton Abbey's Jim Carter, Pixie Lott and Harry Hill.
X Factor judge Tulisa Contostavlos, who was a carer for her own mother, will feature in a film she made about a young carer who has to look after her mother and sister.
Phillip Schofield, who will be paired up again with Christine next year to front Dancing On Ice, said the pair were getting used to working together and he was looking forward to being introduced to her fiance, the Chelsea footballer Frank Lampard.
He said: "We've worked together doing interviews for Text Santa which we did the other day, we've had a photoshoot together, we've seen each other two or three times and we've just organised dinner, all four of us, partners as well."