A large-scale search is underway for missing Christchurch woman Tracy, 66, whom police hold grave fears for.

She was reported missing about 1.20pm on Wednesday 17 September after failing to show up to a pre-planned lunch date.

Her Tesla was located on Taylors Mistake Road in Scarborough around 2pm, but there was no sign of her.

Constable Kieran Palmer said police, Search and Rescue volunteers, Fire and Emergency New Zealand, and Sumner Coastguard volunteers have all been involved in the search.

“We’re very concerned for Tracy’s welfare, and her family wants her to return home. Police have carried out enquiries through the night, and searchers are back out there this morning looking for Tracy, and we ask anyone with information to contact us immediately,” Palmer said.

Tracy is described as being of small build, with grey curly hair, and may still be in the Whitewash or Scarborough area.

Anyone who sees her should call 111 immediately, referencing 250917/1820.