No. Driving with interior lights on is not explicitly prohibited under Singapore’s Road Traffic Act, but it violates Rule 12 of the Road Traffic (Lighting of Vehicles) Rules (2023 rev.), which mandates that interior illumination must not impair visibility or distract other road users. The Land Transport Authority (LTA) and Singapore Police Force (SPF) may issue demerit points or fines under Section 122 of the Act for unsafe driving practices, including glare hazards.
Key Regulations for Driving With Interior Lights On in Singapore
- Visibility Impairment Clause: Rule 12(1)(b) of the Lighting of Vehicles Rules prohibits any interior lighting that reduces the driver’s or other road users’ ability to perceive hazards, including pedestrians or cyclists.
- Distraction Risk: The LTA’s Code of Practice on Vehicle Lighting (2024 draft) classifies excessive interior lighting as a potential distraction, aligning with global best practices under UNECE R48 standards.
- Enforcement Discretion: While no standalone fine exists, SPF officers may cite drivers under Section 122 for “careless driving” (up to S$1,000 fine and 4 demerit points) if interior lights contribute to unsafe conditions.
Note: The LTA’s upcoming 2026 Vehicle Lighting Standards Review may introduce stricter guidelines, including mandatory dimming thresholds for interior lights during night driving. Drivers are advised to comply with existing rules to avoid penalties.