What action is advised if windshield wipers are worn?

Replacing worn windshield wipers immediately is important for maintaining optimal visibility while driving, especially in adverse weather conditions. Worn wipers can lead to streaks or reduced clearing capability, impairing your ability to see clearly during rain or when driving through mud or debris. This creates a significant safety hazard, as poor visibility can increase the chances of accidents. Regular checks and maintenance of windshield wipers, particularly before the rainy season, ensure that they function effectively and help ensure safe driving conditions.

The other choices do not address the critical need for effective wiper performance. Cleaning them frequently may help momentarily but does not fix the underlying problem of wear. Waiting until a heavy rain to address the issue can lead to dangerous driving conditions if the visibility is already compromised. Adjusting their angle could potentially lead to improper alignment, further causing ineffective performance during use.