Studies have shown a number of differences between male and female drivers, such as male drivers committing more offenses and female drivers making more errors. Related to this persistent sex difference, relatively little research has been conducted to examine the presence of gender stereotypes and determinants in the context of driving. This study examined the perceptions of female and male drivers among adolescents in Türkiye and how sex differences and relationships with parents contributed to the endorsement of sex stereotypes. The study was conducted with 128 high school adolescents aged 15-20 years (M = 16.25, SD = 1.32) who completed a questionnaire package consisting of the Sex Stereotypes Associated with Driving (SSAD) and a demographic information form. In terms of sex stereotype endorsement indices, female adolescents reported female drivers as more polite and risk-averse, whereas male adolescents reported male drivers as more skilled. While a positive relationship with fathers reduced the endorsement of courtesy and risk-avoidance stereotypes, a better relationship with mothers resulted in a lower endorsement of the driving skills stereotype. The results provide evidence for the existence of sex stereotypes among adolescents and for the importance of family relationships in relation to sex stereotype endorsement. The findings can be used to design training and education that focuses on stereotypes at an early age.