Can’t shut wipers off!

[Chow567]

Hi everyone. I drive a 2023 Chevy suburban. I changed the wiper control and the wiper motor assembly but my wipers still won’t shut off on occasion even as the engine is turned off! My mechanic removed some relays in the engine compartment fuse box and that cause the wipers to go off! He told me that next time if my wipers won’t go off, tap the fuse relay box to see if it will turn off. If it does then it’s a fuse box issue. My question is I don’t see a wiper relay for my car and is this an issue with a bad wiper fuse that I can replace quickly? Please help. Thank you

 

[2024 White Tahoe]

Hi everyone. I drive a 2023 Chevy suburban. I changed the wiper control and the wiper motor assembly but my wipers still won’t shut off on occasion even as the engine is turned off! My mechanic removed some relays in the engine compartment fuse box and that cause the wipers to go off! He told me that next time if my wipers won’t go off, tap the fuse relay box to see if it will turn off. If it does then it’s a fuse box issue. My question is I don’t see a wiper relay for my car and is this an issue with a bad wiper fuse that I can replace quickly? Please help. Thank you

I don’t have an answer.

Is your vehicle out-of-warranty? Any electrical modifications?

It sounds like your mechanic doesn’t know what he is doing.

I’d take the vehicle to a dealer - there may be a TSB or service information for the issue.

 

[Chow567]

I don’t have an answer.

Is your vehicle out-of-warranty? Any electrical modifications?

It sounds like your mechanic doesn’t know what he is doing.

I’d take the vehicle to a dealer - there may be a TSB or service information for the issue.

Thank you !

 

[2024 White Tahoe]

Thank you !

Best wishes - let us know what you determine.

 

[Gearz]

If your 2023 Suburban windshield wipers won't turn off, the issue is likely a faulty relay or a problem with the wiper control switch. A mechanic can diagnose and repair the problem by inspecting the motor, switches, and relays.

Here's a more detailed explanation:

• Common Causes:
  • Faulty Relay: The wiper relay is a component that controls the flow of power to the wiper motor, and if it's stuck in the "on" position, the wipers will continue to operate even when the vehicle is off.
  • Faulty Control Switch: The wiper control switch, located on the steering wheel stalk, can malfunction and cause the wipers to stay on.
  • Wiring Issues: Problems with the wiring harness can also lead to wipers that won't turn off.
  • Park Switch Issues: The park switch, which is used to stop the wipers in a specific position, can also cause problems.
• Troubleshooting:
  • Check the Fuse: If nothing aftermarket is wired into your vehicle and the wipers will remain on even with the fuse for the wipers removed, this indicates that one of the internal wiper relays that are built into the underhood fuse panel is stuck on.
  • Inspect the Relay: If you can access the wiper relay (usually located under the hood), try swapping it with another relay of the same type to see if the problem is resolved.
  • Check the Control Switch: If the relay is not the issue, the problem could be with the wiper control switch.
  • Professional Diagnosis: If you are not comfortable with these troubleshooting steps, it's best to take your vehicle to a mechanic for professional diagnosis and repair.

This video demonstrates how to diagnose and fix windshield wipers that won't turn off:

 

[hagar]

Good info above, i have also seen faulty body control module cause things like wipers and horn to stay on random.

 

[kjm_333]

The wipers on my 2023 Yukon periodically won't turn on! I am on my 3rd wiper module and have had the truck to GMC service multiple times. Lemon Law pushed them to do a "final repair" and they couldn't figure out the problem yet have denied buying back the truck. Anyone else have similar issues?

 

[Chow567]

If your 2023 Suburban windshield wipers won't turn off, the issue is likely a faulty relay or a problem with the wiper control switch. A mechanic can diagnose and repair the problem by inspecting the motor, switches, and relays.

Here's a more detailed explanation:

• Common Causes:
  • Faulty Relay: The wiper relay is a component that controls the flow of power to the wiper motor, and if it's stuck in the "on" position, the wipers will continue to operate even when the vehicle is off.
  • Faulty Control Switch: The wiper control switch, located on the steering wheel stalk, can malfunction and cause the wipers to stay on.
  • Wiring Issues: Problems with the wiring harness can also lead to wipers that won't turn off.
  • Park Switch Issues: The park switch, which is used to stop the wipers in a specific position, can also cause problems.
• Troubleshooting:
  • Check the Fuse: If nothing aftermarket is wired into your vehicle and the wipers will remain on even with the fuse for the wipers removed, this indicates that one of the internal wiper relays that are built into the underhood fuse panel is stuck on.
  • Inspect the Relay: If you can access the wiper relay (usually located under the hood), try swapping it with another relay of the same type to see if the problem is resolved.
  • Check the Control Switch: If the relay is not the issue, the problem could be with the wiper control switch.
  • Professional Diagnosis: If you are not comfortable with these troubleshooting steps, it's best to take your vehicle to a mechanic for professional diagnosis and repair.

This video demonstrates how to diagnose and fix windshield wipers that won't turn off:

Thank you. I appreciated it

 

[Chow567]

The wipers on my 2023 Yukon periodically won't turn on! I am on my 3rd wiper module and have had the truck to GMC service multiple times. Lemon Law pushed them to do a "final repair" and they couldn't figure out the problem yet have denied buying back the truck. Anyone else have similar issues?

I think it’s the body control module. Are there any other random electrical or non consistent electrical things happening?

 

[Chow567]

Good info above, i have also seen faulty body control module cause things like wipers and horn to stay on random.

Hey! Thanks for the reply! I think it’s also the BCM! Few weeks ago I had my engine light on and I had BCM code in the OBD reader. The codes went away since then but for the past two years when I bought this car I’ve had random mirror foldings and sometimes my door handle locks wouldn’t work and my interior illumination lights will go on and off when the car is off and locked. My rear AC also randomly turns on and off for no reason! I’m pretty sure it’s the BCM as I changed the wiper motor and the switch. The only time the wiper will shut off normally is if I re plug all the relays in the frontal fuse box! Even unplugging the battery wouldn’t work !!