One problem related to warning light on has been reported for the 2002 Mercury Mountaineer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mercury Mountaineer based on all problems reported for the 2002 Mountaineer.
Passenger air bag warning light activated / will not go out. / this a safety issue which chronic on this make and model year / should not be subject to normal warranty terms / should be repaired by Mercury and not the owner / costly repair / normal driving and wear / this issue has not been corrected on my vehicle needs repair.