It took Vancouver simply 19 seconds to reply, with J.T. Miller feeding Pettersson off the rush for his 18th goal of the year.
That sufficed, as Markstrom stopped 20-of-21 shots in the 3rd.
The Canucks are now 3-0-0 versus the Kings so far this season and finish their vacation homestand with a 4-1-0 record. Saturday's win provides Vancouver 44 points, tying them with the Edmonton Oilers for the 2nd wild-card spot in the Western Conference.
The Canucks play another crucial divisional video game on the road on Sunday versus the Calgary Flames (20-15-5).
The win is Vancouver's 4th in a row, its second-such streak of the year. The first started versus the Kings in the Canucks' first house video game of the season, on Oct. 9.
Elias Pettersson scored his fourth game-winning objective of the season and Jacob Markstrom made 49 saves as the Vancouver Canucks beat the Los Angeles Kings 3-2 on Saturday night at Rogers Arena.
In their first video game action after a four-day holiday break, the Canucks looked slow off the opening faceoff. Markstrom kept the game scoreless as the Kings recorded the very first nine shots of the video game, looking specifically sharp as he stopped Adrian Kempe on a give-and-go with Blake Lizotte, 4 minutes in.
Virtanen got Vancouver on the board with 9:38 delegated play in the first. He corralled a big rebound off his own shot near the right boards and fired the puck high over an outstretched Quick.
Motte doubled Vancouver's lead with 28 seconds delegated play in the opening frame, following up a Pettersson rush and rifling a snap shot to the far side over Quick's glove.
The Kings continued to push in the second period, with Markstrom's biggest save coming off a Toffoli breakaway. On the 25th Los Angeles shot of the video game, with 8:08 left in the middle frame, Kings captain Kopitar got his team on the scoreboard. He poked a loose puck in between the post and Markstrom's outstretched right foot for his team-leading 15th objective of the year.
Shots after two durations were 30-17 for Los Angeles.
The Kings connected the video game 2-2 at the 6:46 mark of the third period, when Toffoli discovered a loose puck simply outside the Vancouver crease.