
If the wiper doesn't return to its original position, the following three checks should be performed as soon as possible: 1. Check if the motor is functioning properly: Turn off the wiper motor, then turn it back on to check if the motor operates normally. If it does, motor failure can be ruled out. The probability of motor damage is usually low. 2. Check if the wiper is faulty: After confirming the motor is fine, inspect other parts such as whether the wiper is disconnected or stuck. Dust, mud, or circuit issues should be promptly cleared or repaired. 3. Check for insufficient lubrication of hardware: Examine if excessive friction due to insufficient lubrication is preventing the spring from automatically returning to its original position. Applying lubricating oil to the surface of the card can help.

I've looked into the wiper not returning to its proper position a few times. Most likely, it's either the linkage mechanism getting stuck or an issue with the wiper motor. You can start by listening for any clicking noises when it gets stuck—if there are, there's an 80% chance the linkage joint is rusted solid. Here's a simple test: remove the wiper, unplug the motor connector and reconnect it, then turn the key to the ignition-on position without starting the engine. Manually toggle the wiper switch on and off to see if the motor can reset itself. If it's just a loose mounting screw, lift the plastic cover in the top-left corner of the engine bay, locate the U-shaped arm's retaining nut, and tighten it with a 13mm wrench. Remember not to force the wiper arm—you could damage the linkage. Last time I helped a friend fix his, we found the motor's limit switch was worn out, causing a 2cm misalignment every time it stopped. We ended up replacing the entire linkage assembly to solve it.

My daughter's car had the same issue last month. When the wipers stopped, they stayed tilted and blocked half the view. After inspection, it turned out the wiper blade slot was deformed, causing it to get stuck on the windshield seal when resetting. If you want to handle it yourself, I suggest spraying some WD-40 on the drive shaft connection first, then manually swinging the wiper arm back and forth several dozen times to remove rust. One important note: before removing the wiper arm, place a thick towel on the windshield—otherwise, accidentally hitting the glass could crack it. The mechanic told me many cars now use quick-release connectors; just press the square latch to remove the wiper blade directly. If the reset travel deviation exceeds five centimeters, you might need to replace the motor. For this, it’s better to visit a professional shop and use a diagnostic tool to check the fault codes.

Those with strong hands-on skills can try troubleshooting themselves. First, check if the wiper arm mounting base screws are loose—they can be tightened with a Phillips screwdriver. Then, move the wiper bracket to observe resistance; if it gets stuck at a certain angle, the joint bearing likely lacks lubrication. Use a syringe to inject some grease into the copper sleeve for smooth operation. Remember to wait 30 seconds after turning off the engine before working to avoid accidental activation and injury. Last time, my wipers stopped halfway during operation—turned out a leaf had fallen into the linkage gap, and removing it fixed the issue. For modified wipers, pay special attention to the motor's power output; insufficient power can cause them to get stuck mid-return.

When I went to the 4S shop for repairs, I saw the technician handling it this way: first, they connected a diagnostic computer to check the feedback data from the wiper motor, then used a multimeter to test if the circuit voltage was stable. Once, they encountered a situation where the motor's carbon brushes were worn out, causing a reset failure, and replacing the carbon brush assembly cost over three hundred. Nowadays, new cars feature intelligent position control, and initialization requires specific operational steps—for example, simultaneously pressing and holding the wiper and defogger buttons to let the motor relearn its travel range. They also reminded me that activating the wipers before the windshield coating has fully dried can cause position deviation, so it's best to wait four hours after coating before using them.

Pay attention to these small details in daily car use. For example, forcibly operating the wipers when they're frozen in winter can twist the linkage springs. It's recommended to turn on the warm air to blow on the windshield for a few minutes to thaw them after starting the car. Here's a lesser-known fact: incorrect wiper arm angles can accelerate uneven wear of the rubber blades. Tap the spring with your finger and listen to the rebound sound – a dull noise indicates it's time for a replacement. I make it a habit to apply some white lithium grease to the transmission mechanism every three months, and after four years of use, I've never experienced any reset failures. When parking in open-air shopping mall lots, try to lift the wipers up – this can effectively extend the motor's lifespan. Also, avoid spraying windshield washer fluid too vigorously during normal use, as excessive water volume can seep into the control module's connectors, causing short circuits and abnormal resets.


