Volkswagen Jetta erratic turn signal operation due to dust accumulation in switch on Volkswagen Jetta

Some Volkswagen Jetta owners report experiencing erratic turn signal operation, which may be attributed to dust accumulation in the switch. This issue can also stem from a failing turn signal flasher relay, which might require replacement. Common causes of turn signal problems include burned-out bulbs, blown fuses, and faulty turn signal switches. To mitigate overactive turn signal clicking, some owners find success by applying WD40 or electric circuit cleaner in the turn signal stock and steering column. Additionally, ensuring that bulbs are properly seated can help restore functionality. Repair costs for replacing the hazard/turn signal flasher can start from $103, including parts and labor. If dust is suspected, cleaning the switch is advisable, but it's crucial to consider other potential causes when troubleshooting these issues.