There are 5 owner-reported speed control & cruise complaints for the 2005 Mercury Marinerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THE GAS PEDAL STUCK WHILE DRIVING, THE CAR WOULD ONLY IDLE AND NOT MOVE. THE CAR WAS IN TRAFFIC AND ALMOST HIT BY ANOTHER VEHICLE. ON A PRIOR DATE THE GAS PEDAL STUCK AND WOULD NOT MOVE, CAR JUST IDLED IN A PARKING LOT FOR ABOUT FIVE MINUTES. THIS WASN'T FIRST TIME IT STUCK, BUT PRIOR TIMES IT ALWAYS RELEASED RIGHT AWAY. *TR
THE PROBLEM IS WITH THE GAS PEDAL, ITS HARD TO PRESS/ACCELERATE AND SOMETIMES WHEN I PRESS/ACCELERATE FROM A STOP AND AT SPEEDS OF 30 MPH, IT GETS STUCK AND I HAVE TO PUT IT IN NEUTRAL. VERY DANGEROUS SITUATION. *TR
DRIVING THE CAR IN COLD WEATHER THE THROTTLE WOULD STICK FOR THE FIRST COUPLE OF MILES UNTIL THE CAR WAS WARMED UP. THIS IS A 4CYL.AUTO TRANS./ SAME TYPE OF VEHICLE AS FORD ESCAPE. *TR
I OWN A 2005 MERCURY MARINER, PURCHASED NEW. WHEN IT GETS COLD THE GAS PEDAL STICKS, I PUSH DOWN AND THERE IS NO RESPONSE FOR A FEW TIMES. THIS ALMOST CAUSED ME TO BE REAR ENDED THIS MORNING HAD I NOT PUT ON THE HAZARD LIGHTS. ONCE IT WARMS UP IT IS FINE. THIS HAS BEEN GOING ON SINCE I BOUGHT THE CAR BRAND NEW IN 2005. THIS HAS HAPPENED OVER 50 TIMES AND IS STARTING TO SCARE THE HECK OUT OF ME. *TR
WHEN IT GETS COLD THE GAS PEDAL STICKS, I PUSH DOWN AND THERE IS NO RESPONSE FOR A FEW TIMES. THIS ALMOST CAUSED ME TO BE REAR ENDED THIS MORNING HAD I NOT PUT ON THE HAZARD LIGHTS. ONCE IT WARMS UP IT IS FINE. THIS HAS BEEN GOING ON SINCE I BOUGHT THE CAR BRAND NEW IN 2005. *TR
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