How to Restore the Malfunctioning Sunroof Button on a Compass?

[McJake]

The method to restore the malfunctioning sunroof button on a Compass is: If there is an issue with the sunroof control button's mini-program, simply initialize the sunroof control button. The maintenance methods for a car sunroof are: 1. Regularly check the condition of the sunroof rails to ensure they are normal; 2. Reduce the frequency of sunroof usage; 3. Do not open the sunroof when the car is cold in winter; 4. Before the rainy season arrives, check the drainage status of the sunroof to ensure it is normal. Taking the 2021 Compass as an example, its body dimensions are: length 4424mm, width 1819mm, height 1635mm, wheelbase 2636mm, and curb weight 1430kg.

[MacWilliam]

Oh my, my old Compass had the sunroof button act up last Sunday too! Don’t rush to spend money at the repair shop—here are a few DIY fixes. First, find a needle or toothpick and poke the small reset hole under the button. Hold it for 10 seconds to let the system reboot. If that doesn’t work, just disconnect the negative terminal of the battery for five minutes to reset the whole car’s electronics—this trick works wonders for glitchy devices. While you’re at it, clean out the dust buildup around the button; grime can cause malfunctions too. If it still doesn’t work, check if rainwater leakage caused a short circuit or if the connector behind the button is loose. Open the sunglasses compartment and see if you can reach the wiring harness connector—unplug and firmly reconnect it, listening for a click. The final resort is manual operation: open the sunglasses compartment, use a hex wrench to slowly turn the motor shaft (remember to peel back the dust cover first).

[Ronan]

Last year, my car's sunroof button suddenly stopped responding, and I found it was due to dirty tracks triggering the anti-pinch function. First, slightly lift the sunroof to create a gap, then use a wet cloth wrapped around chopsticks to clean the sand and leaves on both sides of the tracks, especially around the drainage holes. After cleaning, spray window lubricant (avoid using engine oil) and then hold down the switch to attempt a reset. If the reset fails, you’ll need to reset the program: After ignition, hold the switch until the sunroof fully opens and then closes completely. Upon hearing a click, continue holding for 15 seconds. Pay attention to the motor sound during operation—if there’s a humming noise but the sunroof doesn’t move, it may indicate gear slippage. If there’s no sound at all, check the fuse. The manual indicates F36 is a 15A sunroof fuse located in the fuse box on the right side of the trunk.

[OReed]

Don't panic when buttons malfunction—it's likely a contact issue. Removing the button panel is surprisingly simple: pry open the reading light cover from the passenger side, remove two T20 screws, and you'll see the button assembly. Unplug the wiring harness and spray WD-40 on the gold fingers, then plug and unplug several times to remove oxidation. Pay special attention to testing the continuity of the No. 19 purple switch signal wire. If you have the tools, use a multimeter to measure the switch resistance—it should be close to 0 when the button is pressed. I've encountered cases where the sunroof module froze, requiring a five-minute power disconnect. The module is hidden in the headliner, and you'll need to remove the sun visor to access it. Be careful not to pull and break the ambient light wiring harness when handling it yourself. If all else fails, a trip to the dealership for a software reset costs just around a hundred bucks.