One of the most frequent issues is when the turn signals fail to operate properly. This could manifest as signals not blinking, blinking too fast, or staying on without blinking.
Another common problem is the windshield wipers not working or operating intermittently. This could be due to issues with the switch itself, the wiper motor, or electrical connections.
Problems with the headlight controls may include headlights not turning on or off, difficulty switching between high and low beams, or flickering lights.
 The hazard light function may fail to engage or work inconsistently, which can pose a safety risk, especially in emergency situations.
Combination switches often control various other electrical functions in the vehicle, such as cruise control, windshield washer pumps, or horn operation. Problems with these functions may also stem from issues with the combination switch.

Over time, the electrical contacts within the combination switch can wear out or become corroded, leading to poor electrical connections and malfunctioning of various functions.
External factors such as physical damage, exposure to moisture, or excessive wear and tear can also lead to problems with the combination switch.
Electrical issues within the wiring harness or connections associated with the combination switch can cause intermittent problems or complete failure of its functions.
Installing aftermarket accessories or modifications that interact with the electrical system of the vehicle can sometimes cause conflicts with the combination switch, leading to operational issues.
In some cases, combination switches may have inherent design flaws or manufacturing defects that can lead to widespread issues, prompting recalls or technical service bulletins from the manufacturer.