2006 Mercury Grand Marquis speed control problems
The 2006 Mercury Grand Marquis has 38 speed control complaints filed with NHTSA — 20% of the year's total, and roughly flat versus the prior model year.
38
Speed Control complaints
20%
Share of year
9
Crash-involved
0
Related recalls
Speed Control complaints by year
What owners report
“I HAD AN INCIDENT OF UNINTENDED ACCELERATION ON MY MERCURY MARQUIS. I WAS BRAKING FOR A STOP WHEN THE ENGINE SUDDENLY STARTED RACING. I PUT MY FOOT ON THE BRAKE HARD BUT THE CAR STILL CONTINUED TO MOVE SLOWLY UNTIL I HIT THE CAR IN FRONT OF ME. THERE WAS NO DAMAGE TO EITHER VEHICLE (FORTUNATELY)…”
Common questions
How many speed control complaints does the 2006 Mercury Grand Marquis have?
NHTSA has 38 complaints about the 2006 Mercury Grand Marquis speed control — 20% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.