Said It Here

Windshield wipers don't work on interval mode

When windshield wiper interval settings fail while continuous speeds and washer fluid still work, the issue typically points to a faulty wiper switch, a blown fuse, or a failing interval relay module. This prevents drivers from using intermittent wiping in light rain, forcing them to manually toggle the continuous switch on and off.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Using constant wiping mode instead of interval mode
  2. 2
    replacing the fuse
  3. 3
    checking the wiper relay
  4. 4
    replacing the wiper stalk or switch

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/MechanicAdvice2 people · September 2026

“the wipers do nothing when I try to turn them on with the interval switch, but the wiper washer switch is working just fine, the wipers come on and the washer fluid shoots out.”source ↗

Cozy_Cottage_NF-12 · r/MechanicAdvice · 2 upvotes

“The wipers work in constant wiping mode - for now?”source ↗

SjalabaisWoWS · r/MechanicAdvice · 1 upvotes

Where this came up

People with this problem also raised