NHTSA complaint #11620132

Owner complaint summary

Since delivery of my new Tesla Model 3, the haptic turn signal buttons intermittently fail to register inputs despite repeated presses. This issue began immediately and occurs without any warning lamps or error messages. I am requesting the NHTSA to investigate this matter promptly due to the significant safety risks posed by the malfunctioning turn signal system in the Tesla Model 3. The inability to reliably signal turns and lane changes endangers not only us but also other road users. **Safety Risk:** • At highway speeds, I was unable to signal lane changes, leading to dangerous situations where other drivers were unaware of my intentions. • In one critical incident, I needed to make an emergency lane change to avoid road obstacles but could not activate the turn signal, nearly resulting in a collision due to surrounding drivers not being alerted. • Driving in high-traffic areas like Austin increases the hazard, as the lack of signaling can lead to rear-end collisions or sideswipes from drivers unaware of merging or turning maneuvers. **Reproduction and Inspection:** First Service Attempt: Reported the issue to Tesla; they replaced the steering wheel after months of waiting. The malfunction persisted, with turn signals failing again on the drive home. Second Service Attempt: Tesla service center acknowledged the problem but stated there is no mechanical failure they can address. They informed me it's a design flaw with the haptic buttons not consistently recognizing presses and that no fix is available. The problem has been reproduced and observed by Tesla technicians but remains unresolved. **No Alternative Signaling Method:** Tesla's design eliminates traditional turn signal stalks, relying solely on these haptic buttons. When they fail, there's no alternative method to signal, exacerbating the safety risk. Numerous reports from other Tesla owners indicate the same problem, suggesting a widespread safety defect that warrants immediate attention.