Problems · by component
2004 Saturn Ion power train problems
60 owner complaints to NHTSA about the 2004 Saturn Ion cite power train, 7% of all 898 complaints for this model year.
Complaints
60
7% of all complaints
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
What owners say about the power train
Verbatim from NHTSA complaints, newest first
“1. THE IGNITION SWITCH WILL NOT DISENGAGE...SOMETIMES AFTER MOTOR IS TURNED OFF AND CAR IS IN PARK THE CAR MUST BE TURNED BACK ON FOUR OR FIVE TIMES BEFORE THE IGNITION WILL ENGAGE CORRECTLY. THE VEHICLE IS STATIONARY...IN THE PARK POSITION....KEY WILL LOCK INSELF AND NOT DISENGAGE. THE CAR WAS ON A CITY STREET WHEN THIS OCCURRED. IT BEGAN TO OCCUR FIVE MONTHS AGO...NOW IT HAPPENS AT LEAST TEN TIMES A WEEK. 2. ALL ELECTRICAL SYMBOLS ON DASHBOARD SAY: COOLANT...BUT WHEN CHECKED THE COOLANT IS FINE.”
“MY CAR HAS A STANDARD TRANSMISSION AND THE CLUTCH PEDAL ASSEMBLY FAILED CAUSING DANGEROUS AND DIFFICULT SHIFTING BETWEEN GEARS. THE END OF THE CLUTCH PEDAL ASSEMBLY IS PLASTIC AND IT BROKE AT THE JUNCTURE WHERE IT MEETS THE TRANSMISSION. UNBELIEVABLY, GENERAL MOTORS (GM) KNEW OF THE PROBLEM BUT TOOK NO REMEDIAL ACTION. COMPLAINT LETTERS ON THE INTERNET CLEARLY SHOW GM HAS KNOWN ABOUT THE PROBLEM FOR AWHILE BUT TAKEN NO ACTION. IT COST ME $609.74 TO HAVE THE SAFETY PROBLEM FIXED. I REPORTED IT TO GM AND ASKED TO BE REIMBURSED. THIS IS DANGEROUS: I HAD GREAT DIFFICULTY SHIFTING BETWEEN GEARS & ALMOST GOT RUN OVER BY OTHER MOTORISTS WHEN THERE WAS A DELAY IN LOCATING THE NEXT GEAR. GM SHOULD TAKE ACTION ON THIS BEFORE SOMEONE GETS KILLED.”
“TRANSMISSION IS BURNT. WHILE DRIVING THE TRANSMISSION SLIPS OUT OF GEAR. THE RPMS THEN REV AND THE CAR FAILS TO CONTINUE TO GO AT SPEED AND WILL NEED TO BE PULLED OVER. THIS ISSUE OCCURS WHEN THE VEHICLE IS IN MOTION ON CITY STREETS AND ON HIGHWAYS. THE VEHICLE ONLY HAS 58499 MILES ON IT. THE VEHICLE WAS CHECKED AT AAMCO AND THEY SAID THE TRANSMISSION WAS BAD AND NEEDED TO BE REPLACED.”
“TL* THE CONTACT OWNS A 2004 SATURN ION. WHILE DRIVING 60 MPH, THE SPEED INDEPENDENTLY REDUCED AND THE VEHICLE FAILED TO ACCELERATE WITHOUT WARNING. THE VEHICLE WAS RESTARTED, BUT FAILED TO MOVE. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE CVT FAILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 110,000.”
“AFTER THE CAR IS STOPPED AND PLACED IN PARK, THE ENGINE CAN BE SHUT OFF BUT THE KEY STAYS IN A ACCESORY MODE AND CAN NOT BE TURNED TO OFF OR REMOVED FROM THE IGNITION.”
“TL* THE CONTACT OWNS A 2004 SATURN ION. WHILE DRIVING AT 30 MPH, THE STEERING WHEEL WAS DIFFICULT TO TURN AND THE POWER TRAIN WARNING LIGHT ILLUMINATED. THE FAILURE RECURRED ONCE. THE VEHICLE WAS TAKEN TO A DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 142,000.”
Showing 6 of 60 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.