2004 Mercury Mountaineer speed control problems
The 2004 Mercury Mountaineer has 21 speed control complaints filed with NHTSA — 8% of the year's total, and up sharply from the prior model year.
21
Speed Control complaints
8%
Share of year
3
Crash-involved
0
Related recalls
Speed Control complaints by year
What owners report
“VEHICLE SPEED CONTROL: WHILE PREPARING TO BACK UP, BEFORE SHIFTING, VEHICLE JUMPED, AND THEN SUDDENLY ACCELERATED FORWARD, BRAKES WERE APPLIED BUT VEHICLE WOULDN'T STOP AND ENGINE WAS ROARING AS IF THE ACCELERATOR WAS STUCK. VEHICLE WENT AIRBORNE OVER AN EMBANKMENT, THROUGH A LAWN, HIT A…”
Common questions
How many speed control complaints does the 2004 Mercury Mountaineer have?
NHTSA has 21 complaints about the 2004 Mercury Mountaineer speed control — 8% 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.