Yes, extreme summer heat in the UAE is the primary reason for tyre pressure warning lights activating. The key is understanding that while the heat causes over-inflation, the warning often triggers later when pressures appear "low" during cooler night or early morning hours. For example, the recommended cold tyre pressure for a GCC-spec 2023 Toyota Land Cruiser might be 2.3 bar (33 PSI). On a 45°C summer day on Sheikh Zayed Road, that pressure can easily exceed 2.7 bar (39 PSI). Most direct TPMS systems have a threshold; if the pressure later drops to, say, 2.1 bar (30 PSI) in a cooler 28°C garage, the warning light will illuminate. Abu Dhabi Mobility advises checking and adjusting pressures early in the morning when tyres are cold. GSO standards for GCC vehicles mandate robust TPMS sensors to handle the region's thermal cycles. The correct practice is to always inflate to the manufacturer's cold pressure spec listed on the B-pillar—this optimizes fuel economy (often improving by 0.5-1 km/l), extends tyre life by up to 20,000 km, and prevents uneven wear. For a family sedan like a Toyota Camry driven 25,000 km annually in Dubai, maintaining correct pressure can save around 400-600 AED per year in fuel costs alone, not counting extended tyre life.
