New to the forum. My son purchased a 2015 Mazda 3. He was driving 70 on the freeway when the car suddenly shuttered and slowed him down to first gear. The car is an automatic and will not shift into second gear. It bucks then shifts right back into first. Even in manual mode it won’t shift into second. Through ABS codes and steering wheel angle sensor code. Replaced steering wheel sensor and all codes cleared but still did not fix shifting issue. Any thoughts? Ideas?
