5.5

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
16,400 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2003 Mercury Mountaineer:

Unsubscribe any time. We don't sell/share your email.

problem #1

Apr 252003

Mountaineer 4WD 8-cyl

  • Automatic transmission
  • 16,400 miles
Intermittently the brake lights staying lit after vehicle is turned off and key is removed. Likely that this failure also caused the brake lights to remain lit while driving, rendering the signal ineffective. Lights actually stayed on two occasions causing a dead battery once. Lights were noticed the second time, and wiggling the brake pedal extinguished all three indicators. Dealer replaced the brake light switch under warranty.

- Carol Stream, IL, USA