"How reliable is the 1999 Mitsubishi Montero?"

"Based on 47 NHTSA complaints, the 1999 Mitsubishi Montero has a median complaint mileage of 84000 miles. The most common issue is Automatic Transmission."

"What are common problems with the 1999 Mitsubishi Montero?"

"The most frequently reported component in NHTSA complaints for the 1999 Mitsubishi Montero is Automatic Transmission, accounting for a significant portion of the 47 total complaints filed."

1999 Mitsubishi Montero: Reliability Data

Source: NHTSA — 47 complaints

Total Complaints

84,000mi

Median Mileage

Automatic Transmission

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

65,000 25th Percentile

84,000 Median Mileage

174,598 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Automatic Transmission

Front

Air Bags

Gasoline

Upper Arm

Suspension

Steering

Engine

Wheel Bearing

Unknown Or Other

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"TRANSMISSION IS LEAKING FLUID DUE TO A PIN HOLE IN THE BELL HOUSING, CAUSE UNKNWOWN. PLEASE GIVE ANY FURTHER DETAILS.*AK"

"FRONT END HAS ALOT OF NOISE COMING FROM IT, AND JERKS THE STEERING WHEEL FROM RIGHT TO LEFT WHEN HITTING BUMPS. DEALER HAS SEEN VEHICLE 3 TIMES, AND SAID IT WAS NORMAL. *AK"

"VEHICLE ALWAYS DRIFTS TO THE RIGHT AT ANY SPEED. MJS"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

Where Are Complaints Coming From?

Top states by complaint count.

PR: 8 MD: 7 FL: 4 CA: 4 AZ: 3 GA: 3 NC: 3 TX: 2 DC: 2 NY: 2

Who Files Complaints?

46.8%

Original Owners

53.2%

Second+ Owners

Mitsubishi Montero — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1990	25	-	Buckle Assembly	2
1991	22	-	Engine	0
1994	35	185,000	Engine	3
1995	106	143,000	Engine	8
1996	40	-	Unknown Or Other	0
1997	85	110,500	Antilock/Traction Control/Electronic Limited Slip	7
1998	91	89,500	Front	13
2000	68	109,000	Antilock/Traction Control/Electronic Limited Slip	8
2001	213	103,530	Vacuum	16
2002	132	84,000	Service Brakes	11
2003	53	67,000	Service Brakes, Hydraulic	6

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28