How to change from Startup to Secondary in MongoDB

I need help on how to change the STARTUP to SECONDARY in MongoDB. I added 3 nodes and 2 nodes must be on SECONDARY state but unfortunately it became STARTUP after adding it. See details below. Been looking for an answer but nothing seems the same with my currently problem.

Hi everyone. I need help on how to change the STARTUP to SECONDARY in MongoDB. I added 3 nodes and 2 nodes must be on SECONDARY state but unfortunately it became STARTUP after adding it. See details below. Been looking for an answer but nothing seems the same with my currently problem.

members: [
    {
      _id: 0,
      name: 'svplred1:27017',
      health: 1,
      state: 1,
      stateStr: 'PRIMARY',
      uptime: 3786,
      optime: { ts: Timestamp({ t: 1707380305, i: 1 }), t: Long('4') },
      optimeDate: ISODate('2024-02-08T08:18:25.000Z'),
      lastAppliedWallTime: ISODate('2024-02-08T08:18:25.168Z'),
      lastDurableWallTime: ISODate('2024-02-08T08:18:25.168Z'),
      syncSourceHost: '',
      syncSourceId: -1,
      infoMessage: '',
      electionTime: Timestamp({ t: 1707376535, i: 1 }),
      electionDate: ISODate('2024-02-08T07:15:35.000Z'),
      configVersion: 3,
      configTerm: 4,
      self: true,
      lastHeartbeatMessage: ''
    },
    {
      _id: 1,
      name: '10.0.14.17:27017',
      health: 1,
      state: 0,
      stateStr: 'STARTUP',
      uptime: 3785,
      optime: { ts: Timestamp({ t: 0, i: 0 }), t: Long('-1') },
      optimeDurable: { ts: Timestamp({ t: 0, i: 0 }), t: Long('-1') },
      optimeDate: ISODate('1970-01-01T00:00:00.000Z'),
      optimeDurableDate: ISODate('1970-01-01T00:00:00.000Z'),
      lastAppliedWallTime: ISODate('1970-01-01T00:00:00.000Z'),
      lastDurableWallTime: ISODate('1970-01-01T00:00:00.000Z'),
      lastHeartbeat: ISODate('2024-02-08T08:18:28.791Z'),
      lastHeartbeatRecv: ISODate('1970-01-01T00:00:00.000Z'),
      pingMs: Long('0'),
      lastHeartbeatMessage: '',
      syncSourceHost: '',
      syncSourceId: -1,
      infoMessage: '',
      configVersion: -2,
      configTerm: -1
    },
    {
      _id: 2,
      name: '10.0.14.18:27017',
      health: 1,
      state: 0,
      stateStr: 'STARTUP',
      uptime: 2895,
      optime: { ts: Timestamp({ t: 0, i: 0 }), t: Long('-1') },
      optimeDurable: { ts: Timestamp({ t: 0, i: 0 }), t: Long('-1') },
      optimeDate: ISODate('1970-01-01T00:00:00.000Z'),
      optimeDurableDate: ISODate('1970-01-01T00:00:00.000Z'),
      lastAppliedWallTime: ISODate('1970-01-01T00:00:00.000Z'),
      lastDurableWallTime: ISODate('1970-01-01T00:00:00.000Z'),
      lastHeartbeat: ISODate('2024-02-08T08:18:28.918Z'),
      lastHeartbeatRecv: ISODate('1970-01-01T00:00:00.000Z'),
      pingMs: Long('0'),
      lastHeartbeatMessage: '',
      syncSourceHost: '',
      syncSourceId: -1,
      infoMessage: '',
      configVersion: -2,
      configTerm: -1
    }   ]