2003 Mercury Mountaineer transmission problems
The 2003 Mercury Mountaineer has 45 transmission complaints filed with NHTSA — 20% of the year's total, and down from the prior model year.
45
Transmission complaints
20%
Share of year
5
Crash-involved
0
Related recalls
Transmission complaints by year
What owners report
“TL*THE CONTACT OWNS A 2003 MERCURY MOUNTAINEER. WHILE THE VEHICLE WAS ON IN THE PARK POSITION WITH THE AUTOMATIC START, THE GEAR SHIFTED INTO REVERSE AND CRASH INTO A VEHICLE. THE CONTACT CALLED TO THE POLICE WHO CONFIRMED THAT THE VEHICLE WAS IN THE PARK POSITION. THE CONTACT IS CONCERNED ABOUT…”
Common questions
How many transmission complaints does the 2003 Mercury Mountaineer have?
NHTSA has 45 complaints about the 2003 Mercury Mountaineer transmission — 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.