Pathetic car and after sales service

I have bought Maruti-Brezza automatic in Sep'18 from Bagga Link, Patparganj, New Delhi. And from day one I am disappointed with my decision. I am not able to park my car on a ramp using back gear. Maruti changed the clutch box of my new car but issue was not resolved. It shows a YELLOW engine signal on the panel when I try to park my car using back gear and escalator. Issue has been escalated to the highest level in Maruti but no response. PATHETIC service from Maruti.