Before the rainy season begins, inspect critical car components such as tyres, brakes, wipers, lights, battery, fluids, air filters, and rubber seals. Ensure tyres have good tread and proper air pressure for better grip on wet roads. Check brakes for wear and tear, and replace worn-out wiper blades to maintain clear visibility. Test all lights and clean lenses to ensure proper functioning. Examine the battery for corrosion and loose connections, and inspect essential fluids like engine oil and coolant to keep your car running smoothly.