Tl* the contact owns a 2009 mercury grand marquis. He applied pressure to the brake pedal when attempting to park the vehicle, but it lurched forward. The vehicle crashed through the garage walls into the adjacent room. There was no personal injury. There were damages to the walls and furniture which occupied the adjacent room. The front end of the vehicle sustained moderate damages. The…
2009 Mercury Grand Marquis cruise control problems
severe 3 complaints filed with NHTSA · avg repair $600 · see cruise control across all vehicles →
Complaints
3
Recalls
0
Avg fix
$600
1crash
When does it fail?
Of the 3 cruise control complaints filed for the 2009 Mercury Grand Marquis, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 5 model years of Mercury Grand Marquis we track for cruise control problems, this one has the fewest owner complaints on file (3).
No new NHTSA cruise control complaint has been filed on this vehicle in over 16 years — the issue may be aging out of the active population.
What owners are reporting 3 most recent
Tl* the contact owns a 2009 mercury grand marquis. The contact stated that while the brakes was engaged there was an sudden increase on engine rpms. The contact mentioned that the rear wheels started to spin and in order to stop it he had to shift into neutral. The vehicle was taken to the dealer who was unable to duplicate the failure. The failure mileage and current mileage was 33,000.
Tl* the contact owns a 2009 mercury grand marquis. While driving 30 MPH, the vehicle failed to respond when the brake pedal was depressed and the vehicle independently accelerated. The contact was able to stop the vehicle by switching to the park position. The vehicle was taken to a dealer where it was diagnosed, but the contact was unaware of the diagnosis. The vehicle was repaired, but the…
Had cruise control trouble with your 2009 Mercury Grand Marquis?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the cruise control problem on the 2009 Mercury Grand Marquis?
It's a meaningful issue. 3 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $600.
At what mileage does the cruise control typically fail?
Based on the 3 complaints filed, cruise control issues most often appear around 26,667 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $600 for cruise control repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to cruise control?
No active recalls currently cover cruise control issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2009/Mercury/Grand Marquis.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.