When the screen will not clear
You are driving in light rain and the windscreen smears instead of clearing. Worn wiper blades reduce visibility and make night driving more tiring. Replacing them is one of the simplest maintenance jobs you can learn.
Spot the signs of wear
Look for streaking, squeaking, skipping, split rubber or areas the blade misses. Lift the wiper arm gently and inspect the rubber edge. If the rubber is cracked, loose or hardened, replacement is usually better than cleaning.
Choose the right blade
Check the vehicle handbook, the blade packaging guide or a trusted parts database for the correct length and connector type. Front blades may be different sizes, and the rear blade may use a separate fitting. Avoid forcing a blade that does not match the connector.
Fit and test safely
Lift the wiper arm carefully, release the old blade, and attach the new blade until it clicks securely. Lower the arm gently onto the glass rather than letting it snap back. Test with washer fluid before driving, so you know the blade is secure and clearing properly.
Ready to test what you've learned
When you mark this module as finished, the assessment unlocks after a short delay (60 min) so the material can settle into longer-term memory.
Scroll to the end of the module to enable the finish button.

