BQ27542-G1: BQ27542 Bqstudio temperature display issue in low temperature.

Hi Tier:

I used the BQ27542-G1 in my single pack,

it's ok when i read the temperature above the -20℃ by bqstudio.

But

When the ambient temperature reaches -30℃,  the bqstudio is -26.5 ℃

When the ambient temperature reaches -40℃,  the bqstudio is -32.5 ℃,

I don't know what's wrong. Do you have any good suggestions?

Looking forward to your support. Thank you.