You can take KTM Komuter (Rawang-Seremban) and then RapidKL LRT (Kelana Jaya Line) to reach KLCC and Petronas Twin Towers.
Take KTM Komuter train from any of these KTM Komuter stations: Seremban, Tiroi, Labu, Nilai, Batang Benar, Bangi, UKM, Kajang, Serdang, Bandar Tasik Selatan, Salak Selatan, Seputeh, Mid Valley, Kuala Lumpur, Bank Negara, Putra, Segambut, Kepong, Kepong Sentral, Sungai Buloh, Kuang, Rawang, Serendah, Batang Kali, Rasa.
Get down at KL Sentral KTM Komuter station.
Take RapidKL LRT (Kelana Jaya Line) from KL Sentral.
Get down at KLCC RapidKL LRT station.
KLCC/Petronas Twin Towers, Kuala Lumpur Live Area Map and Directions
To get driving direction to KLCC/Petronas Twin Towers, Kuala Lumpur, click “Get Directions” in the map marker. Choose “from here” or “to here” box and type the other location you are coming from/going to. Click “Go” and you will get the route and direction instructions below the map.
Example: If you are coming from Bangsar to the place marked here, click “Get Directions”, make sure “to here” is selected. Type “Bangsar” and click “Go”.