Yes. 12 CFR 226.24 states...
Advertisement of terms that require additional disclosures. (1) If any of the following terms is set forth in an advertisement, the advertisement shall meet the requirements of paragraph (c)(2) of this section:
(i) The amount or percentage of any downpayment.
(ii) The number of payments or period of repayment.
(iii) The amount of any payment.
(iv) The amount of any finance charge.
(2) An advertisement stating any of the terms in paragraph (c)(1) of this section shall state the following terms, as applicable...
The official commentary provides ...
Payment amount. The dollar amount of any payment includes statements such as:
. "Payable in installments of $ 103."
. "$ 25 weekly."
. "$ 1,200 balance payable in 10 equal installments."
In the last example, the amount of each payment is readily determinable, even though not explicitly stated. But statements such as "monthly payments to suit your needs" or "regular monthly payments" are not covered.