There are 24 owner-reported speed control & cruise complaints for the 2003 Saturn Ionin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
ACCELERATOR CAR SPEEDS UP ON ITS ON WHEN I AM DRIVING ON IT'S OWN. RPS GETTING TO THE HIGHEST LEVEL CANT HARDLY STOP CAR
I WAS DRIVING MY SATURN TONIGHT AND NOTICED THAT EVEN WHEN I WOULD LET OFF THE BRAKE, THE CAR WOULD ACCELERATE AND RPMS WOULD STAY ELEVATED. I WAS DRIVING AT ABOUT 35-40MPH. I WAS COMING UP TO AN INTERSECTION AND IT SIMPLY DIDN'T FEEL RIGHT, LIKE IT WAS PULLING FORWARD. THE TRAFFIC LIGHT TURNS RED AND I START TO APPLY PRESSURE TO THE BRAKES. IT FELT LIKE THE BRAKES WERE RESISTING AND IT WAS TAKING A LOT MORE PRESSURE THAN USUAL TO SLOW DOWN. MY CAR WOULD NOT COME TO A COMPLETE STOP AND I WAS GOING ~5MPH RIGHT UP TO THE CROSSWALK. THE CAR STARTED VIOLENTLY LURCHING FORWARD AND STILL, WASN'T COMING TO A STOP. THE RPMS WERE REVVING AND I WAS ABLE TO REACT IN TIME TO PUT THE CAR IN NEUTRAL, KEEP BRAKING, AND TURN THE ENGINE OFF RIGHT BEFORE THINGS WOULD HAVE ENDED VERY BADLY. I KEPT MY CAR IN PARK AND TURNED IT ON, AND IT WOULD SHOOT UP IMMEDIATELY TO 4000 RPM. I DIDN'T TRUST THE CAR AT ALL AT THIS POINT AND SAT IN -18 DEGREE WEATHER PROCESSING WHAT HAD JUST HAPPENED AND WHAT TO DO NEXT. AFTER ABOUT 5 MINUTES I HEARD WHAT CAN BE DESCRIBED AS THE ACCELERATION PEDAL RELEASING OR POPPING BACK UP IN PLACE. THERE WAS NOTHING IT COULD HAVE BEEN CAUGHT ON TO CAUSE IT TO STICK. TERRIFYING. *TR
THE THROTTLE POSITION SWITCH FAILED ON THIS VEHICLE WHILE IT WAS BEING DRIVEN. THIS CAUSED THE ENGINE TO QUIT. IT WOULD NOT RESTART. REPLACING THE TPS CURED THE PROBLEM. *TR
TL* THE CONTACT OWNS A 2003 SATURN ION. THE CONTACT STATED THAT THE VEHICLE SUDDENLY ACCELERATED WHILE THE DRIVER ATTEMPTED TO CROSS AN INTERSECTION. THE DRIVER WAS ABLE TO SHIFT THE GEAR INTO NEUTRAL, MOVE ONTO THE ROAD SHOULDER AND RELEASE THE ACCELERATOR PEDAL THAT WAS STUCK TO THE FLOOR BOARD. THE VEHICLE RETURNED TO NORMAL FUNCTION AFTER RESTARTING BUT ONLY FOR A BRIEF MOMENT. THE FAILURE WAS EXPERIENCED SEVERAL TIMES. THE CONTACT'S MECHANIC CLEANED THE THROTTLE HOWEVER, THE FAILURE WAS NOT CORRECTED. THE VEHICLE WAS TAKEN TO DEALER TO HAVE A DIAGNOSTIC PERFORMED. THE VIN WAS NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE AND THE CURRENT MILEAGE WAS 80,000.
I HAVE OWNED THIS VEHICLE FOR 4 YRS AND HAVE HAS MULTIPLE INSTANCES OF THE VEHICLE REVVING AND SPEEDING UP WITHOUT EVER HITTING THE GAS. WHEN THIS OCCURS I HAVE REACHED SPEEDS OVER 25MPH WITHOUT EVER HITTING THE GAS PEDAL WHEN TAKING OFF FROM A STOPPED POSITION. USUALLY THIS HAPPENS WHEN I START THE VEHICLE INITIALLY BUT HAS OCCURRED WHILE DRIVING ALSO. THE RPM'S WILL GO HIGH AND IF I PUT IN GEAR THE CAR WILL JUST TAKE OFF. IT SOMETIMES WILL REV DOWN AFTER IDLING FOR A FEW MINUTES OR IF I SHUT OFF AND RESTART AFTER A COUPLE MINUTES. WHEN IT HAPPENS WHILE DRIVING I HAVE HAD TO PUT IN NEUTRAL AND COAST TO A STOP AND SHUT CAR DOWN. THIS IS JUST A VERY UNSAFE SITUATION ALTOGETHER, AND FROM WHAT I HAVE SEEN THERE ARE MANY MORE WHO HAVE EXPERIENCED THIS SAME ISSUE. *TR
THE GAS PEDAL GETS STUCK WHEN PRESSED MORE THAN ROUGHLY 50% OF THROTTLE (~I.E. ACCELERATING TO MERGE OR PASS ANOTHER VEHICLE). WHILE DRIVING ON THE HIGHWAY, WHEN I RELEASED THE GAS PEDAL, I NOTICED THE CAR DID NOT SLOW DOWN. I USED THE BRAKE AND STILL COULD NOT SLOW THE CAR DOWN. THEN I PROCEEDED TO REACH WITH MY HAND TO PULL UP THE GAS PEDAL, BUT I COULD NOT. AT THIS POINT, FACING AN IMMINENT CRASH INCIDENT, I QUICKLY TURNED ON MY HAZARD LIGHTS, SHIFTED THE CAR INTO NEUTRAL, AND LET THE CAR ROLL TO A STOP. I THEN PROCEEDED TO ATTEMPT TO PULL THE GAS PEDAL UP BY HAND AND IT DID NOT WORK. RPMS WERE STILL RUNNING HIGH UNTIL FINALLY AFTER WAITING ABOUT 30 SECONDS, I HEARD A 'POP' AND THE GAS PEDAL CAME OUT. I WAS THEN ABLE TO DRIVE NORMALLY, AS LONG AS I DON'T PRESS THE PEDAL DOWN TOO FAR. *TR
THIS HAS HAPPENED NUMEROUS TIMES AND IS REALLY SCARY! THE GAS PEDAL STICKING IT GETS REALLY STIFF AND DOESNT WANT TO STOP . THE ONE TIME I WAS GOING 25 MPH AND IT WOULDN'T STOP SO I HAD TO SLAM IT IN PARK AND THE RPMS GOT UP TO 4 . IT SEEMS TO HAPPEN MORE WHEN IT GETS COLD OUT . IT IS NOT LETTING UP AND I AM SCARED FOR MY SAFETY. *TR
WHEN ACCELERATING TO 35 MPH, MY ACCELERATOR GOT STUCK AND CONTINUED TO ACCELERATE FASTER. I WAS ABLE TO APPLY JUST ENOUGH BRAKE PRESSURE TO BARELY MAKE IT SAFELY INTO AN EMPTY PARKING LOT WHERE I WAS ABLE TO PUT MY CAR INTO PARK AND THEN SHUT OFF MY CAR IMMEDIATELY. I THEN TRIED RESTARTING MY CAR AND IMMEDIATELY IT STARTED REVVING AND SPEEDING FORWARD. I THEN SHUT OFF MY CAR FOR GOOD AND CALLED AAA. WHILE I WAS ON THE PHONE, APPROXIMATELY TEN MINUTES AFTER SHUTTING OFF MY CAR, I COULD HEAR THE ACCELERATOR RELEASE. THERE WAS NO MAT IN THE WAY BUT IT WAS SOMETHING INTERNAL IN THE CAR MAKING THE ACCELERATE STICK. THANK GOODNESS I WAS ABLE TO MAKE THAT TURN INTO THAT PARKING LOT WHEN I DID AND THERE WERE NO OTHER CARS COMING THE OTHER WAY BEFORE I MADE THAT TURN.
TL* THE CONTACT OWNS A 2003 SATURN ION. THE CONTACT STATED THE VEHICLE ABNORMALLY ACCELERATED WITHOUT WARNING. THE ENGINE RPMS RACED EVEN AFTER THE BRAKE PEDAL WAS DEPRESSED, BUT THE VEHICLE WAS HESITANT TO STOP. THE CONTACT HAD TO SLAM THE VEHICLE INTO PARK IN ORDER TO CORRECT THE FAILURE. THE VEHICLE WAS NOT INSPECTED OR REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 180,000.
TL* THE CONTACT OWNS A 2003 SATURN ION. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT ENGAGED THE CRUISE CONTROL BUT THE VEHICLE SUDDENLY ACCELERATED ABRUPTLY WITHOUT WARNING. THE CONTACT THEN APPLIED PRESSURE TO THE BRAKES, MANUALLY DEPRESSED THE CRUISE CONTROL BUTTON AND PRESSED THE CLUTCH TO DISENGAGE THE SYSTEM HOWEVER, THE VEHICLE CONTINUED TO ACCELERATE. THE CONTACT WAS ABLE TO REMOVE THE VEHICLE FROM THE HIGHWAY AND SHUT THE ENGINE OFF. THE VEHICLE WAS TOWED TO A DEALER WHO PERFORMED A DIAGNOSTIC TEST AND CONFIRMED THAT THE CRUISE CONTROL MODULE HAD FROZE IN ACCELERATION MODE AND DISCONNECTED THE SYSTEM. THE MANUFACTURER TOOK A COMPLAINT ON THE CONTACTS BEHALF AND THE CONTACT WAS AWAITING A RESPONSE. THE CURRENT AND FAILURE MILEAGE WAS 80,051.
I WAS DRIVING ON HWY AT 60 MPH FOR APPROX 2 HOURS. WHEN FOOT WAS OFF GAS, CAR WOULD MAINTAIN SPEEDS OF 55-60 MPH. EXITED ONTO EXIT RAMP ON RIGHT. EXIT RAMP WAS APPROX 0.4 MILES LONG, SNOW COVERED, AND UPHILL. APPLIED THE BRAKE ON & OFF WHILE APPROACHING THE STOP SIGN AT THE END OF THE EXIT RAMP, CAR SLOWED TO APPROX 20 MPH WITH BRAKE FULLY PRESSED. RPM'S WERE APPROX 4,000 WITH BRAKE FULLY PRESSED. CAR CONTINUED ACCELERATING WITH BRAKE FULLY PRESSED. COULDN'T STOP, BUT WAS ABLE TO TURN LEFT AND CROSS BRIDGE OVER HIGHWAY. TRIED PUTTING FOOT UNDER GAS PEDAL TO SEE IF IT WAS STUCK DOWN, BUT IT WAS NOT DOWN. CONTINUOUSLY TRIED TO BRAKE, BUT COULD NOT SLOW THE CAR TO BELOW 20 MPH EVEN WITH BRAKE FULLY PRESSED. ROADS WERE SNOW COVERED. WENT APPROXIMATELY 0.5 MILES ON PRAIRIEVIEW RD. NO CARS WERE STOPPED AT RED LIGHT ON PRAIRIEVIEW AS I APPROACHED. FULLY PRESSED AND HELD DOWN BRAKE RIGHT BEFORE COMING TO RED STOPLIGHT ON PRAIRIEVIEW RD & OAK ST/US-150. CAR WOULD STILL NOT GO BELOW 15-20MPH. TURNED RIGHT TO AVOID CROSSING INTO ONCOMING TRAFFIC. LOST CONTROL OF THE CAR AND BEGAN SPINNING ON THE SNOW. BRAKE WAS STILL FULLY PRESSED DOWN BUT ACCELERATING AT 3,000 RPM. CAR DID TWO 360'S ON OAK ST/US-150 CROSSING INTO ONCOMING TRAFFIC AND WENT INTO DITCH ON LEFT SIDE OF THE ROAD. CAR WAS STILL ACCELERATING, CAME OUT OF THE DITCH AND BACK INTO ANOTHER 360 ON OAK ST/US-150. THEN CAR WENT INTO THE DITCH ON THE RIGHT SIDE OF THE ROAD. FRONT RIGHT PASSENGER DOOR HIT WOODEN SIGN IN GROUND IN DITCH, KNOCKED IT DOWN, AND RAN IT OVER. CAR DROVE ANOTHER 20-30 FEET IN DITCH AND GOT STUCK IN BOTTOM OF DITCH. BREAK WAS FULLY PRESSED THE ENTIRE TIME CAR WAS OUT OF CONTROL, BUT CAR WAS STILL ACCELERATING. WHEN CAR BECAME STUCK IN DITCH, RPMS WERE STILL AT 3,000. WITH CAR IN PARK IT CONTINUED ACCELERATING AT 3,000 RPMS. TURNED CAR OFF. 5 HOURS LATER BEFORE CAR WAS TOWED, TURNED CAR BACK ON AND RPMS WERE STILL HOLDING ABOVE 2,000 - HAVE VIDEO EVIDENCE OF THIS. *TR
THE CAR WILL BE RUNNING JUST FINE. THEN ALL OF A SUDDEN IT ACCELERATES AND WANTS TO GO FAST. I PUT ON THE BRAKES AND IT DOES NOT WANT TO STOP. THEN THE ACCELERATION STOPS BY ITSELF AND THE CAR JERKS LIKE IT IS MISSING A GEAR. IT DOES THIS PROBABLY ABOUT 2 TIMES PER WEEK. *TR
ON MULTIPLE OCCASIONS OVER THE LAST 2-3YRS, THE CAR WAS TURNED ON AND THE ENGINE REVVED UP TO 3,500RPM WITHOUT PRESSING ON THE GAS PEDAL. IF I PUT THE CAR IN DRIVE WHILE THIS WAS HAPPENING, THE CAR WOULD ACCELERATE ON ITS OWN (UP TO 25MPH). I'VE HAD MULTIPLE AUTO SHOPS INSPECT AND TRY TO DIAGNOSE THE PROBLEM BUT NONE CAN TELL ME WHAT THE PROBLEM IS. *TR
WHEN IT IS COLD I NOTICED THAT MY CAR WILL IDLE UP TO 4 AND WHEN I PUT IT IN DRIVE IT WILL GO REAL FAST EVEN WITH MY FOOT OFF THE GAS. WHEN I TRY TO BRAKE IT IS HARD TO STOP BECAUSE IT JUST WANTS TO GO. *TR
I HAVE HAD MY CAR IN FOR THE SAME REPAIR 4 TIMES SINCE I GOT IT IN MAY 2003. WHAT HAPPENS IS THE CAR WILL REV AND/OR ACCELERATE (SOMETIMES IN PARK, SOMETIMES IN DRIVE) ON ITS OWN. IT HAS ACCELERATED, ALMOST CAUSING ME TO GO THROUGH AN INTERSECTION WITH MY TODDLER IN THE CAR. IT OCCURS WITHOUT WARNING, & SATURN HAS TEMPORARILY FIXED THE PROBLEM UNDER WARRANTY EACH TIME. THE THROTTLE IS REPLACED EACH TIME, BUT THERE IS A RECURRENT PATTERN EVERY 4-6 MONTHS, AS SHOWN ON RECORD WITH SATURN. I WAS TOLD BY SATURN THAT THEY INVESTIGATED THE ISSUE, ONLY FINDING IT IN ONE OTHER CAR. BEING AS THAT PROBLEM WAS SOLVED WITH THE OTHER CAR, & BEING AS MY CAR WAS JUST FIXED AGAIN, THEY ARE UNWILLING TO DEAL WITH THIS ISSUE. *JB
VEHICLE IS EXPERIENCING A PROBLEM WITH SUDDEN ACCELERATION. OWNER WAS DRIVING AND HAD FOOT ON BRAKE AT A FOUR WAY STOP. THE VEHICLE BEGAN TO ACCELERATE UP TO 3,000 RPM AND SURGED THROUGH THE INTERSECTION. PROVIDE FURTHER DETAILS. *NM
WHILE APPLYING THE ACCELERATOR PEDAL VEHICLE HESITATED FOR A COUPLE OF SECONDS THEN SURGED FORWARD. *AK
WHILE DRIVING, THE CONSUMER NOTICED THE VEHICLE WOULD ACCELERATE FROM 5 TO 20 MILES ON ITS OWN. THE CONSUMER APPLIED THE BRAKES, BUT THE PEDAL WENT TO THE FLOOR AND THE VEHICLE CONTINUED TO SPEED. THE CONSUMER WAS ABLE TO MAINTAIN CONTROL OF THE VEHICLE. *JB THE DRIVER HAS ELECTRICAL WINDOWS AND LOCKS FAILED. THE WINDOW WOULD ROLL UP AND DOWN INTERMITTENTLY. THE DOOR LATCH WOULD DO THE SAME. THE MASTER CYLINDER WAS REPLACED AS WELL. THESE PROBLEM CONTINUE TO OCCURRED AND HAS NOT BEEN RESOLVED. THE DRIVER HAS INFORMED THE MECHANIC ABOUT THE PROBLEM. PLEASE FILL IN ADDITIONAL INFORMATION.
VEHICLE EXPERIENCED SUDDEN ACCELERATION WHILE IN TRAFFIC, CAUSING CONSUMER'S VEHICLE TO CRASH INTO ANOTHER VEHICLE. DRIVER SUSTAINED INJURIES. TAKEN FOR REPAIR TO THE DEALER FOR THE SECOND TIME, BUT THE CAUSE WAS UNDETERMINED EVEN AFTER THE COMPUTER HAD BEEN RESET.*AK CONSUMER STATED THE ONLY WAY TO STOP THE VEHICLE WAS WHEN IT HIT THE OTHER CAR IN FRONT. PUT FOOT ON BRAKE TO STOP THE CAR AND IT SURGE FORWARD. *BF *NM
VEHICLE IS EXPERIENCED DELAYED ACCELERATION. AS A RESULT WHEN ENTERING A HIGHWAY VEHICLE WILL NOT ACCELERATE UNTIL TWENTY SECONDS AFTER APPLYING THE PEDAL. *AK
Showing 1–20 of 24 complaints
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026