2010 Infiniti G37 Powertrain & Transmission Problems

I BOUGHT MY CAR USED WITH LESS THAN 53,000MI STILL UNDER MANUFACTURED WARRANTY AND I EVEN BOUGHT AN EXTENDED WARRANTY FROM CARMAX WHEN I BOUGHT THE CAR. I WAS DRIVING CAR AND WITHIN A WEEK I TOOK TO CARMAX CLUTCH WASN'T FEELING THE SAME WHEN SHIFTING (RETURN PRESSURE LOOSENED UP) THEY SAID CAR WAS FINE. JUST A LITTLE OVER A MONTH LATER I TOOK CAR TO INFINITI FOR SAME PROBLEM, THEY ALSO SAID THE CAR WAS FINE AND SHIFTING WAS NORMAL. YESTERDAY I WAS DRIVING HOME (A MONTH LATER EXACTLY AFTER INFINITY CHECKED IT OUT) MY CLUTCH PEDAL WENT ALL WAY TO FLOOR AND I COULDN'T SHIFT BARELY MADE IT HOME. I WOULD HAVE TO SAY THAT MY CLUTCH IS NOT FINE OR SHINING RIGHT AT ALL I HAVE HAD TO PAY 2XS ALREADY FOR DIAGNOSES AND I HAVEN'T HAD MY CAR MORE THAN 3MONTHS!

WHILE DRIVING, MY CLUTCH BECAME SOFT AND "SPONGY" TO THE POINT THAT THE ENGAGEMENT POINT WAS ON THE FLOOR AND THE PEDAL WOULD NOT RETURN TO THE ENGAGED POSITION. THIS WAS A RESULT OF A FAILING CLUTCH SLAVE CYLINDER WHICH HAS AFFECTED MANY G37 AS WELL AS NISSAN 370Z'S. *TR

AS WITH INNUMERABLE OWNERS OF THIS 6 SPEED MANUAL TRANSMISSION (6MT), I AM CONSISTENTLY EXPERIENCING A GRINDING AND CRUNCHING SOUND/FEELING WHEN SHIFTING INTO 5TH GEAR AT NORMAL SPEEDS. UNLESS I VERY SLOWLY (GRANNY SHIFT) OR DOUBLE CLUTCH, THIS GRINDING/CRUNCHING SOUND WILL BE HEARD AND FELT. ACCORDING TO WEB SEARCHES, THIS TRANSMISSION DAMAGING ISSUE HAS BEEN REPORTED BY MANY OTHER CUSTOMERS AND ACKNOWLEDGED/REPAIRED BY INFINITI UNDER WARRANTY WHEN CUSTOMER IS PERSISTENT. *TR

I HAD AN HOUR DRIVE TO RETURN HOME. I HAD DRIVEN ABOUT 30 MIN WHEN I HAD TO SLOW DOWN FOR A TRAFFIC ACCIDENT. WHEN I TRIED TO GET BACK UP TO SPEED ON THE FREEWAY,, THE TRANSMISSION DISENGAGED. I HAD TO PUT IT INTO NEUTRAL AND THEN BACK INTO DRIVE TO RESUME DRIVING. THE TRANSMISSION CONTINUED TO DISENGAGE ABOUT EVERY 3 MINUTES ALL THE WAY HOME. I WAS NOT IN A GOOD AREA TO STOP, SO I CONTINUED PUTTING IT INTO NEUTRAL AND THEN BACK INTO DRIVE. WHEN I FINALLY ARRIVED AT A SAFE GAS STATION, I TURNED OFF THE IGNITION, WAITED ABOUT 5 MINUTES AND TURNED IT BACK ON. I HAD ABOUT 5 MORE MINUTES TO GET HOME AND IT DID NOT REPEAT THE INCIDENT. THE NEXT DAY A VALET PARKER BROUGHT ME MY CAR AND WHEN I WENT TO PUT IT INTO DRIVE FROM PARK, THE ENGINE RACED. IF I HAD NOT HAD MY FOOT ON THE BRAKE, IT WOULD NOT HAVE BEEN GOOD. I THEN CALLED THE DEALERSHIP AND THEY CAME AND GOT THE CAR. *TR

TRANSMISSION: TRANSMISSION DOES NOT OPERATE PROPERLY. HARSH DOWNSHIFTING (USUALLY AROUND 30-40 MPH) BEGAN WITHIN FIRST TWO MONTHS OF OWNERSHIP AND CONTINUES TO THIS DAY. SIGNIFICANT LAG (2-3 SECONDS) OCCURS WHEN ACCELERATING WHILE MOVING OR WHILE NEARLY STOPPED CREATING UNSAFE DRIVING CONDITIONS WHEN ENTERING AN INTERSECTION, MERGING INTO TRAFFIC, OR ACCELERATING TO AVOID A COLLISION. SERVICE BULLETINS HAVE BEEN ISSUED BY MANUFACTURER AND APPLIED TO VEHICLE IN ATTEMPT TO ADDRESS PROBLEMS (ECM/TCM REPROGRAMMINGS), HOWEVER, PROBLEMS PERSIST AND ARE CONSTANT. INITIALLY, MANUFACTURER COMMUNICATED WITH ME IN ATTEMPT TO RESOLVE PROBLEMS, INCLUDING A COMMITMENT TO REPLACE TRANSMISSION, BUT HAS NOW CEASED COMMUNICATION. AUTOMOBILE FORUMS AND MANUFACTURER SERVICE BULLETINS INDICATE THIS IS A WIDELY KNOWN, WIDELY EXPERIENCED PROBLEM WITH THIS MODEL OF TRANSMISSION. IT APPEARS MANUFACTURER IS NO LONGER COMMITTED TO RESOLVING THESE PROBLEMS. AIR BAGS: PASSENGER SIDE AIR BAG SIGNAL WILL ILLUMINATE INDICATING PASSENGER SIDE AIR BAG IS DEACTIVATED ALTHOUGH THERE IS AN ADULT PASSENGER IN THE SEAT. IF THE PASSENGER LIFTS OFF THE SEAT FOR 10 SECONDS, THE ILLUMINATION WILL CEASE AND PRESUMABLY THE PASSENGER AIR BAG IS ONCE AGAIN ACTIVATED, HOWEVER, SOMETIMES THE SIGNAL WILL AGAIN ILLUMINATE AND THE PASSENGER MUST AGAIN LIFT OFF THE SEAT TO CEASE ILLUMINATION TO ENSURE PROPER OPERATION OF PASSENGER SIDE AIR BAG. PROPER OPERATION OF THE PASSENGER SIDE AIR BAG IS UNCERTAIN. THE MANUFACTURER TOLD ME THEY WOULD CONTACT DEALERSHIP IN ORDER TO DIAGNOSE THIS PROBLEM BUT THEY HAVE NOT DONE SO. *JS