Located every 25 to 50 km along the expressway, lay-bys are well designed areas for travellers to seek respite before continuing their journey. There are parking bays. toilets, wakaf (shelter) and public telephones.
Even though lay bys are not fully equipped like the RSAs, the facilities provided are sufficient for a short break.
| Location | Bound |
|---|---|
| Alor Pongsu | North Bound |
| Alor Pongsu | South Bound |
| Behrang | North Bound |
| Behrang | South Bound |
| Bukit Gantang | North Bound |
| Bukit Gantang | South Bound |
| Gunung Tempurung | South Bound |
| Gurun-Ko'bah | North Bound |
| Gurun-Ko'bah | South Bound |
| Juru | North Bound |
| Juru | South Bound |
| Kampung Bemban | North Bound |
| Kampung Bemban | South Bound |
| Kepala Batas | North Bound |
| Kepala Batas | South Bound |
| Kulai | North Bound |
| Kulai | South Bound |
| Ladang Bikam | North Bound |
| Ladang Bikam | South Bound |
| Nilai | North Bound |
| Nilai | South Bound |
| Pedas Linggi | North Bound |
| Pedas Linggi | South Bound |
| Rawang | South Bound |
| Senawang | North Bound |
| Senawang | South Bound |
| Serdang | North Bound |
| Serdang | South Bound |
| Simpang Pulai | North Bound |
| Simpang Pulai | South Bound |
| Simpang Renggam | North Bound |
| Simpang Renggam | South Bound |
| Sungai Bakap | North Bound |
| Sungai Bakap | South Bound |
| Sungai Buloh | South Bound |
| Sungai Muda | North Bound |
| Taiping | North Bound |
| Taiping | South Bound |
| Tangkak | North Bound |
| Tangkak | South Bound |
| Tanjung Malim | North Bound |
| Tanjung Malim | South Bound |
| Tikam Batu | North Bound |
| Tikam Batu | South Bound |
| Yong Peng | North Bound |
| Yong Peng | South Bound |
