Problems · by component

2003 Infiniti G-Class service brakes, hydraulic problems

43 owner complaints to NHTSA about the 2003 Infiniti G-Class cite service brakes, hydraulic, 8% of all 535 complaints for this model year.

Complaints
43
8% of all complaints
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the service brakes, hydraulic

Verbatim from NHTSA complaints, newest first
“TL* THE CONTACT OWNS A 2003 INFINITI G35. THE CONTACT STATED WHILE THE VEHICLE WAS PARKED, THE EMERGENCY BRAKE RELEASED AND THE VEHICLE ROLLED AWAY UNTIL CRASHING INTO ANOTHER VEHICLE. THERE WERE NO INJURIES. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS NOT CONTACTED BUT THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 124,000 AND THE CURRENT MILEAGE WAS 125,000.”
Owner complaint to NHTSAFiled Jan 6, 2012Service brakes, hydraulicCrash reportedODI 10442695
“CONSUMER HAS EXPERIENCED CAR A FEW EVENTS SINCE EARLY '10 OF VEHICLE BEING RELUCTANT TO STOP, EVEN WHEN BRAKES WERE APPLIED DOWN TO THE FLOOR. THE LAST EVENT OCCURRED TODAY (9/18/11). TODAY'S EVENT WAS MORE SCARY THAN THE PREVIOUS EVENTS, IN THAT THE CAR ACCELERATED FAR AHEAD OF OUR DESTINATION AND COULD HAVE POSSIBLY HIT ANOTHER DRIVER, IF A DRIVER HAD BEEN PRESENT. THE BRAKES ARE FUNCTIONING PROPERLY AND ARE NOT WORN. AT THIS POINT, I AM GRAVELY CONCERNED ABOUT THIS MALFUNCTION, AND IT FEELS LIKE I AM AT GREAT RISK OF HAVING AN UNAVOIDABLE ACCIDENT. *TT”
Owner complaint to NHTSAFiled Sep 18, 2011Service brakes, hydraulic, Vehicle speed controlODI 10425956
“I BOUGHT THIS CAR USED, SHOULD HAVE CHECKED THIS SITE FIRST. I NOW HAVE TO REPLACE MY BRAKES ONCE A YEAR BECAUSE THEY WEAR PREMATURELY. THAT IS A $1000 JOB. ONLY HAVE HAS THE CAR FOR 3 YEARS. LAST YEAR IN 09, THE CD PLAYER STOPPED WORKING WITH 6 CD'S STUCK IN THE CHANGER, I HAD NATIONWIDE INFINITY LOOK INTO THIS, WHEN THEY SAID IT WOULD BE $1400 TO FIX, BUT MY YEAR CAR HAS THESE PROBLEMS. SO I SAID FORGET IT, I DO NOT HAVE THIS KIND OF MONEY SITTING AROUND. THEN COUPLE MONTHS AFTER THAT, THE RADIO WOULD SHUT OFF BY IT SELF A COUPLE TIMES A WEEK AND COME RIGHT BACK ON. THEN JUST THE OTHER DAY, BEING JUNE 5TH 2010 MY RADIO WOULD NOT COME ON AT ALL AND I NOW HAVE NO CONTROL OVER MY AIR CONDITION. IT IS STUCK ON 70 FULL BLAST. NOW WASTING A TON OF GAS ALSO. I CALLED NATIONWIDE TO MAKE AN APPT, WHEN I DISCUSSED THE ISSUE, THE SERVICE ADVISOR THEN SAID " LET ME GUESS, 2003 G35" I SAID OH, SO YOU KNOW THIS ISSUE, HE SAID YES WE SEE IT ALL THE TIME, YOUR LOOKING AT !600 TO FIX! I THEN CALL INFINITY HEADQUARTER TO FILE A COMPLAINT TO HAVE THEM TAKE CARE OF THE ISSUE DUE TO IT BEING A KNOWN ISSUE WITH NO RECALL. IM A SINGLE MOM, SO NOT HAVE THIS MONEY LAYING AROUND. I…”
Owner complaint to NHTSAFiled Jun 6, 2010Service brakes, hydraulic, Electrical systemODI 10334790
“2003 G35 AND Q45 INFINITI WITH BRAKE PROBLEMS. *TGW THE CONSUMER STATED THE PROBLEM WITH THE Q45 WAS EXTREME VIBRATIONS WHEN APPLYING THE BRAKE; PARTICULARLY AT SPEEDS OVER 50 MPH. ON DOWN-HILL BRAKING, THE SHUDDER VIBRATION WAS PASSED ON TO THE STEERING WHEEL. *JB”
Owner complaint to NHTSAFiled Mar 23, 2010Service brakes, hydraulicODI 10320910
“MY 2003 G35 COUPE HAVE BRAKE PROBLEM WHERE THE BRAKE PADS AND ROTOR WILL WEAR OUT SO QUICK. I HAVE GONE THROUGH 2 SETS OF PADS AND ROTOR WITHIN 40KM. RICHMOND NISSAN REFUSE TO FIX IT FOR ME UNDER WARRANTY. I FINALLY HAD TO REPLACE THEM MYSELF AT MY OWN COST. *TR”
Owner complaint to NHTSAFiled Sep 15, 2009Service brakes, hydraulicODI 10283974
“TL*THE CONTACT OWNS A 2003 INFINITI G35 SEDAN. THE CONTACT STATED THAT THE TRANSMISSION FAILED AT 45,000 MILES. IN ADDITION, THE BRAKES FAILED ON THE VEHICLE AND WERE REPLACED SEVERAL TIMES. WHEN THE VEHICLE WAS STARTED, IT WOULD JOLT AND JERK ON ITS OWN. THE DEALER STATED THAT THE TRANSMISSION WAS SLIPPING AND NEEDED TO BE REPLACED. HE ASSUMED THAT THE REPAIRS COULD BE MADE UNDER THE EXTENDED POWERTRAIN WARRANTY; HOWEVER, THE MANUFACTURER STATED THAT THE WARRANTY DID NOT INCLUDE THE FLY WHEEL OR THE CLUTCH COMPONENT OF THE TRANSMISSION. THE FAILURE MILEAGE WAS LESS THAN 45,000 AND CURRENT MILEAGE WAS 69,800.”
Owner complaint to NHTSAFiled Feb 25, 2009Service brakes, hydraulic, Power trainODI 10259889

Showing 6 of 43 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.