815 ILCS 636/35
After a lessee has been in default for 10 days solely by reason of the lessee's failure to make a timely lease payment and any applicable late charges, the holder may declare the lessee to be in default and may send the lessee a notice of default. A lessee who has been in default solely by reason of the lessee's failure to make a timely lease payment and any applicable late charges and who has not previously been afforded the right to cure the default shall be entitled to cure the default. If the lessee is entitled to cure the default the notice shall contain a conspicuous statement that the lessee is entitled to cure the default, setting forth the dollar amount necessary to cure the default, the date by which payment must be made and the name, address, and telephone number of the holder from which information may be obtained regarding the cure. This Section shall not apply to any default other than the lessee's failure to make a timely lease payment and any applicable late charges.
815 ILCS 636/35