Wiring problems of the 2009 Smart Fortwo Cabrio

(1) power train issue; no rhyme or reason the vehicle will not shift into gear. After some time, I discovered that you must shut the vehicle off and re-start to shift the transmission into gear. This seems to be happening more often over the past two months! I have had this happen after pulling out of a parking spot and trying to place the vehicle into r or d, I have tried placing the car into n and back to either r or d with no luck, again had to re-start while blocking traffic! this should not be happening on a newer vehicle. (2) electrical issue; no rhyme or reason the heater/ac blower will not power on and is intermitting issue. After some time now, I have determined that I have to rap on the dash by the glove box to start the blower. I have also had the blower stop working while driving down the road after hiting a pot hole or a big bump. It appears that there is a short in the wiring, but I,m unable to locate it. Really worried about a vehicle fire over time? (3) electrical issue; I have had to replace both headlamps several times since ownership of vehicle. This appears to be an issue of the fixture not sealing correctly. Luckly, I have only lost one headlamp at a time, why has then not been addressed?.