AutoDefect IQ

2003 Mitsubishi Montero problems, complaints & recalls

Most-reported problem areas: Service Brakes, Hydraulic (4) · Service Brakes (4) · Power Train (3)

🧭 Reliability snapshot

100 /100
✓ Typical or better for this model

Compared against other Mitsubishi Montero model years — complaint volume vs the model's median year, recalls and severity. How we score →

🛣️ Complaints by mileage

<25k miles: 8 complaints 8 <25k 25–50k miles: 3 complaints 25–50k 50–75k miles: 4 complaints 50–75k 75–100k miles: 4 complaints 75–100k 100–125k miles: 3 complaints 100–125k 125–150k miles: 3 complaints 125–150k 150k+ miles: 7 complaints 150k+

32 NHTSA complaints that reported an odometer reading.

39
Complaints
0
Recalls
49
Service bulletins
4
Crashes reported
1
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (49)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Equipment:other:owners/Service/Other Manual 2023-07-21 · DEALER LETTER · Service Bulletin/Repair Instructions

this is a dealer letter sent to dealers informing that mitsubishi technical training has launched the 3rd quarterly technician quiz for 2023.

Structure 2023-04-24 · TSB-23-00-004 · Service Bulletin/Repair Instructions

this technical service bulletin provides instructions and material safety data sheets for removal of rap-film adhesive residue.

Equipment:other:owners/Service/Other Manual 2023-04-24 · TSB-23-00-001 · Service Bulletin/Repair Instructions

this technical service bulletin reviews the regulations that require a label showing the reduction in load carrying capacity be affixed to vehicles when the total net weight of accessories is more than 1.5 percent of the vehicle's gross vehicle weight rating (gvwr) or 100 lbs.

Equipment:other:owners/Service/Other Manual 2023-04-21 · DEALER LETTER · Service Bulletin/Repair Instructions

this is a dealer letter sent to dealers informing that mitsubishi technical training has launched the 2nd quarterly technician quiz for 2023.

Unknown Or Other 2022-04-07 · TSB-22-54-003 · Service Bulletin/Repair Instructions

this technical service bulletin was sent to dealers to explain the difference between normal dew condensation, which is a natural phenomenon, and water penetration caused by improper sealing or a defective/broken part.

Equipment 2019-11-26 · TT253 · Service Bulletin/Repair Instructions

this is a service newsletter (tech talk) that was sent out to dealers.

Showing the 6 most recent of 49 bulletins. Search all of them free at nhtsa.gov.

What owners report

2016-06-29 · Engine And Engine Cooling:exhaust System:emission Control:catalytic Convertor · 130,000 mi

“tl* the contact owns a 2003 mitsubishi montero. the contact stated that the check engine warning light remained illuminated when the vehicle was purchased from the dealer. the contact stated that the vehicle had a strong hesitation as the failure progressed. the vehicle was taken to an independent mechanic who diagnosed that the catalytic converter…”

2015-06-12 · Structure:body · 162,000 mi

“tl* the contact owns a 2003 mitsubishi montero. the contact stated that while driving approximately 60 mph, the vehicle started to veer to the left independently. the contact stopped on the shoulder to check the tire pressure. the vehicle was driven to an independent mechanic. the technician put the vehicle on the lift and diagnosed that the entire…”

2015-05-08 · Service Brakes · 187,000 mi

“a siren sound came on. my husband proceeded to get of the road. in his attempt, the brakes became very hard to press. the vehicle continued to roll as the brakes were being applied. he the pull the emergency brakes to bring the vehicle to a complete stop. aaa was called to tow the vehicle to a auto shop. after a thorough check, the owner (mas…”

2014-12-04 · Steering · 177,000 mi

“the horn goes off by itself the pads where stuck and it cost $1000 to repair since it needs to remove the steering airbag,this should be on a recall.this has a lot of problems who has same model on mitsubishi forums found here http://mitsubishiforum.com/forum/mitsubishi-montero-montero-sport-14/horn-activate-itself-01-montero-ltd-28034/. *tr…”

2014-10-22 · Service Brakes, Hydraulic:antilock/Traction Control/Electronic Limited Slip:abs Warning Light · 93,000 mi

“tl* the contact owns a 2003 mitsubishi montero. the contact stated that while driving 5 mph down a slight incline, the brake pedal failed to respond and the vehicle was shifted to neutral in order to stop. the contact also stated that the abs warning light illuminated. the vehicle was not diagnosed or repaired. the manufacturer was not notified of …”

2014-08-11 · Power Train · 230,000 mi

“tl* the contact owns a 2003 mitsubishi montero. the contact heard a loud piercing sound when the ignition was started. all of the warning indicators illuminated on the instrument panel. the vehicle was not diagnosed or repaired. the manufacturer was not notified. the failure mileage was 230,000.…”

2014-04-29 · Service Brakes · 187,800 mi

“i was driving on the freeway, when all of a sudden my abs light came on and a buzzer. i then went to apply the brakes and stop but the brake pedal would not budge. it was like there was a brick under it. there was no way of stopping safely. luckily no one was in front of me. i had to you the transmission to shift down. pressed as hard as i could on…”

2013-12-19 · Service Brakes · 145,000 mi

“i was driving, started hearing oozing sound then i applied brakes, very hard and won't go down. then i pulled over the side curb and the curb stopped the card. *tr…”

2013-07-16 · Service Brakes, Hydraulic

“my hydraulic brake stop working i have to use the emergency brake the repair is 2500 my car is a 2003 with 90000 mile. *tr…”

2013-02-05 · Service Brakes · 135,000 mi

“tl* the contact owns a 2003 mitsubishi montero. the contact stated that while driving 65 mph, the brakes failed. the contact mentioned that the abs, emergency brake, and traction control warning lamps illuminated. the vehicle was taken to an independent mechanic. the technician diagnosed that the electric motor in the hydraulic brake booster unit f…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Mitsubishi Montero years