Juventus have already sealed the Serie A title for the eighth season in a row, but Torino still have all to play for as they target a first-ever qualification for elite European competition.
"This draw burns, we could have scored a second goal and brought the win home," said Torino coach Walter Mazzarri.
"The only time we let down our guard the phenomenon that is Ronaldo punished us."
Torino have not won at Juventus since 1995 while their only win since then against their city rivals was at home in April 2015.
Ronaldo -- who had scored the only goal with a penalty in the reverse fixture in December -- was partnered up front by teenage striker Moise Kean.
Kean threatened early along with Torino captain Andrea Belotti.
But Serbian midfielder Lukic broke through following a Miralem Pjanic error to slot in his first goal for Torino.
Ronaldo came close to an equaliser soon after with his powerful strike just wide with Salvatore Sirigu denying Blaise Matuidi.
But Juventus increased the pressure after the break with Ronaldo rising hightest to latch onto a Leonardo Spinazzola cross to beat Sirigu and deny Torino a third consecutive victory.
Ronaldo hits 601st goal
It was Ronaldo's 21st league goal this season and moves him two behind Sampdoria's Fabio Quagliarella, who leads the Serie A scoring charts.
The Portuguese superstar brings his tally of career club goals to 601, edging ahead of his Argentina rival Lionel Messi, who has 600.
"We're lucky to play with Cristiano and live in this age of two star players," said Juventus captain Giorgio Chiellini.
"They're somewhat comparable to (Roger) Federer and (Rafael) Nadal. The are both out of this world, one seems stronger one day and then the other replies."
For Juventus it was a second consecutive stalemate after last weekend's 1-1 draw against Inter Milan.
"Clearly once you've won the league the foot comes off the gas a little bit and it becomes difficult to find the motivation," said coach Massimiliano Allegri.
"But compared to the San Siro we started better and if we hadn't conceded that goal in the first half it might have been a different game."
Juventus are nevertheless 19 points ahead of second-placed Napoli, who host Cagliari on Sunday.
Inter Milan, eight points behind Napoli, will look to consolidate third position and their Champions League berth on Saturday at Udinese.
Torino stay sixth, one point behind Roma, and two adrift of fourth-placed Atalanta.
Although Juventus have nothing left to play for they will have a role in who qualifies for next seasons Champions League as they play Roma and Atalanta in their next two games.