2006 Mercury Grand Marquis Vehicle Speed Control Problems
NHTSA component category: VEHICLE SPEED CONTROL · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How vehicle speed control ranks on this vehicle
Share of the 142 complaints citing each category; one complaint can cite several. Full breakdown on the 2006 Mercury Grand Marquis overview page.
What owners report
“CRUISE CONTROL WILL NOT WORK NOR POWER ON. CIGARETTE LIGHTER OUTLET HAS NO POWER.”NHTSA complaint 10897075 — filed 08/19/2016
“THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE ACCELERATED INDEPENDENTLY WITHOUT WARNING. THE VEHICLE…”NHTSA complaint 10823388 — filed 02/01/2016
“THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT WHILE DRIVING AT 10 MPH ATTEMPTING TO ENGAGE THE BRAKES, THE VEHICLE SUDDENLY…”NHTSA complaint 10758873 — filed 08/24/2015
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Vehicle Speed Control complaints by year filed
Frequently asked questions
Does the 2006 Mercury Grand Marquis have vehicle speed control problems?
Vehicle Speed Control is the #2 most-reported problem area on the 2006 Mercury Grand Marquis: 36 of 142 complaints on file (25.4%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2006 Mercury Grand Marquis have in total?
142 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 16 involved a crash, 2 involved a fire, 9 reported injuries, and none reported deaths.
What does NHTSA's vehicle speed control category include?
NHTSA assigns each complaint to standard component categories; this page reports the VEHICLE SPEED CONTROL category exactly as NHTSA defines and records it.
