My windshield suffered a stress-fracture recently and I got it replaced through insurance. However, Autoglass did not fit an OEM but one from a different manufacturer, apparently my insurance does not cover OEM replacement.
Anyway, both auto-lights and auto-wipers generally work fine, or so I thought. During recent heavy rains, I noticed that wipers set on auto-mode no longer go on double-speed when it comes down in buckets, they simply stay on normal speed. Happened twice on two different days, both times I had to manually override and turn on double-speed such was the intensity of the rain.
I am 100% sure that double-speed used to work on auto-wipers prior to the windshield change.
Has anyone come across something like this before?
It is going to be quite difficult to prove this to my insurance/Autoglass. Any advice would be welcome.

 

I would imagine the auto glass has some markings on it. Get the model info and look it up online. There is probably a cross reference to what cars with what options.

 

You may need to get the Auto Wipers re-initialized. Was the sensor replaced on the windshield or transferred from old to new?

 

just a thought, rain-x or aquapel? does the auto mode run the wipers even if it's not raining?

 

The sensor was not replaced. It was unplugged from the old windscreen and plugged into the new one.

 

Auto-mode does not run wipers if it is not raining.
What is rain-x/aquapel?

 

Thanks for the advice, will look it up.
They did bring the wrong windscreen first. The replacement that they finally brought was meant to be identical to the original in the car. It would be interesting if the new screen is made to support one wipe mode (normal speed) and not the other (fast wipe).

 

Highly doubtful. The fact your rain sensor was swapped over, I am willing to bet you need to get the rain sensor re-initialized. Just my $.02

 

good, if it was, that could point to a serious install issue.

Rain-X: Outsmart the Elements | Wiper Blades, Windshield Treatments
Rain Repellent Glass Treatment - Aquapel Glass Treatment

Coatings that cause the water to bead up and streak off. awesome stuff.