GM Parts Club
Most glass and wipers problems announce themselves well before they strand anybody. On a 2020-2024 CT4, these are the ones worth acting on.
1. Wipers that park in the wrong position
This one is usually early, which is good news, because it is cheap to fix early. Start by looking at wiper motors.
2. A washer pump you can hear running with nothing coming out
It rarely gets better on its own, and it usually gets louder before it gets expensive. Start by looking at wiper blades.
3. Chattering or streaking that returns within a week of new blades
By the time this is obvious you are generally replacing more than one part. Start by looking at wiper motors.
4. A rain sensing system that triggers late or not at all
This is the symptom people put off longest and regret most. Start by looking at wiper blades.
What to Do Next
Blades every six to twelve months. In North Texas, summer heat kills blades faster than winter does.
Driver and passenger blades are frequently different lengths on the same vehicle.
Everything here is available as a genuine GM part through our Cadillac OEM parts catalog. If you would rather search directly, search for CT4 wiper blades.
Where to Buy
- Genuine Cadillac OEM parts
- Wiper Blades
- Wiper Transmissions
- Wiper Motors
- Washer Pumps
- Wholesale account setup
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