Starting October 1 2025, Government of Malaysia mandated the fitment of Speed Limiter Devices (SLD) on all commercial vehicles. Read further to know how this impacts you as a fleet operator.
The information provided here is based on latest circular and publicly available news released by Ministry of Transport, Malaysia.
Last update – August 4, 2025
Enforcement Timeline
Phase 1: October 1, 2025 onwards
Phase 2: January 1, 2026 onwards
Phase 3: July 1, 2026 onwards
Which commercial vehicles are affected by the SLD enforcement?
Answer: SLD Enforcement affects 3 primary group of vehicles. They are Express Buses, Tour Buses, and Heavy Goods Vehicles (weighing over 3,500kgs). Enforcement is to be done in three phases, depending on:
1. Readiness of the vehicle’s Electronic Control Unit (ECU) to enable SLD feature.
2. Year of vehicle registration (after or before Year 2015).
SLD Enforcement Phase 1 affects vehicles registered after 2015, and already has built-in SLD features in the ECU.
If the vehicles are already equipped with SLD feature in the ECU (Electronic Control Unit), you may contact the manufacturer to unlock/switch-on this feature.
If the vehicles do not have SLD feature in the ECU, it is subject to Enforcement Phase 3.
SLD Enforcement Phase 2 affects vehicles registered before 2015, and already has built-in SLD features in the ECU.
Similar to Phase 1, you may contact the manufacturer of the vehicle to unlock/switch-on this feature.
If the vehicles do not have SLD feature in the ECU, it is subject to Enforcement Phase 3.
Finally, SLD Enforcement Phase 3 affects heavy vehicles that do not have any built-in SLD features in the ECU.
These vehicles are required to retro-fit or install a JPJ certified SLD hardware.
Installation must be certified by authorised workshops, Technical Services or certified bodies.
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