2003 Mitsubishi Diamante recalls and problems

The 2003 Mitsubishi Diamante has 2 safety recalls and 56 owner complaints filed with NHTSA. Recall repairs are free at any Mitsubishi dealer.

Recalls

Complaints

Crashes / fires

1 / 0

Injuries / deaths

1 / 0

Recalls may cover only some 2003 Mitsubishi Diamante vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.

2003 Mitsubishi Diamante recalls

Recall 04V-428: Equipment

Reported Sep 1, 2004 · 100,432 vehicles affected · MITSUBISHI CARIBBEAN

Problem: Certain passenger vehicles fail to conform to the requirements of federal motor vehicle safety standard no. 208, 'occupant crash protection.' the bilingual english/spanish removable air bag warning labels affixed to the dash and to the sunvisor do not meet the size requirements of the standard.

Risk: This does not meet the requirements of the standard.

Fix: Mitsubishi caribbean will mail a customer notification letter containing a written description and a graphic of the bi-lingual dashboard air bag warning label. In addition, all current 2000-2004 nativa owners will also receive replacement air bag alert labels for the sun visors. This recall is expected to begin during march or april 2005. The notification to the nativa owners is expected to begin during april or may 2005. Owners should contact mitsubishi caribbean at 1-787-251-8715.

Recall 04V-067: Equipment

Reported Feb 11, 2004 · 134,000 vehicles affected · MITSUBISHI MOTORS NORTH AMERICA, INC.

Problem: Certain sport utility and passenger vehicles fail to comply with federal motor vehicle safety standard no. 225, "child restraint anchorage systems." the owner's manual does not contain a step-by-step description for headrest adjustment when installing a child restraint system (Crs) tether strap.

Risk: If the tether strap is improperly installed to the tether anchor, the child safety seat may not be sufficient restrained. In the event of a crash, the child could be injured.

Fix: A letter outlining the problem will be sent to owners along with a sticker containing the correct instructions as well as instructions on where to affix the sticker in the owner's manual. The recall began on march 29, 2004. Owners should contact mitsubishi at 1-888-648-7820.

2003 Mitsubishi Diamante problems reported by owners

Problem area	Reports
Visibility	28
Engine and Engine Cooling	18
Service Brakes, Hydraulic	6
Power Train	4
Tires	3
Suspension	3
Equipment	3
Electrical System	2
Fuel System, Gasoline	2
Parking Brake	1
Seats	1
Latches/Locks/Linkages	1

Most reported parts

Visibility › Defroster/Defogger/Hvac System › Heater Core — 24
Engine and Engine Cooling › Cooling System — 11
Service Brakes, Hydraulic › Foundation Components › Disc › Rotor — 3
Power Train › Automatic Transmission — 3
Suspension › Front — 2
Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip — 2
Parking Brake › Conventional — 1
Seats › Front Assembly › Seat Heater/Cooler — 1

Typical mileage at the time of the problem: 60,000 miles (median of owner reports).

Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.

Recent 2003 Mitsubishi Diamante complaints

Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.

Tires · at 216,242 miles · reported Jul 22, 2019

The contact owns a 2003 mitsubishi diamante equipped with cooper cs3 tires (Na). While driving 25 MPH, air from the vehicle's front driver side tire began to be released. The contact pulled the vehicle into a fuel station/repair shop where the tire was replaced. The contact took the vehicle to the independent mechanic that sold him the tires. The tires were measured and the contact was informed that each of them needed to be replaced. The dealer was not contacted. The manufacturer was notified of the failure. The tire size was unknown. The approximate tire failure mileage was 198,000 and the…

Power Train · at 164,000 miles · reported Mar 13, 2013

The contact owns a 2003 mitsubishi diamante. The contact stated that the heater core fluid leaked onto the central computer and caused the transmission to fail. In addition, the gear shifter could not be released from third gear. The vehicle was not taken to the dealer. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure and current mileage was 164,000. The VIN was not available.

Engine and Engine Cooling · at 71,677 miles · reported Jun 2, 2011

I have a 2003 mitsubishi diamante ls with 71677 miles on it all of the sudden my husband (The primary driver) tells me that every time he gets out of the car he feels light headed and nauseous. Days later the front windshield started fogging up while driving and after turning the car off (Whether it is warm or cold outside) I googled why would this happen and have spoken with a few mechanics and they are telling me that it is the heater core going out, and that the reason why my husband is getting light headed and nauseous is because there is anti-freeze coming into the interior of the car…

Fuel System, Gasoline · at 60,000 miles · reported Apr 20, 2011

The contact owns a 2003 mitsubishi diamante. The contact stated the vehicle was consuming excessive amounts of fuel and she was concerned the vehicle would prematurely run out of fuel while driving. The vehicle was taken to an independent repair shop where the contact was told that the intake air temperature sensor would need to be replaced. The vehicle was not repaired. The failure mileage was 60,000 and the current mileage was 70,000.

Engine and Engine Cooling · at 60,000 miles · reported May 20, 2010

Tl- the contact owns a 2003 mitsubishi diamante. The contact stated that the neutral light on the vehicle started flashing on and off and he noticed a smell of coolant. He noticed that the coolant was leaking onto the floorboard of the vehicle. The failure progresses until the vehicle will not start. The vehicle was taken to a dealer and the owner was advised the failure was the a.t. Control relay. Code p-1751. The failure has not been repaired. The current and failure mileage is approximately 60,000. Rd

Other Mitsubishi Diamante years

200420032002 2001 2000

Compare all Mitsubishi Diamante years · All Mitsubishi models

Frequently asked questions

Does the 2003 Mitsubishi Diamante have any recalls?

Yes — NHTSA lists 2 recalls for the 2003 Mitsubishi Diamante: 04V-428 (equipment), 04V-067 (equipment). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.

What is the most common problem with the 2003 Mitsubishi Diamante?

Owners report visibility problems most often (28 reports), followed by engine and engine cooling (18). The typical mileage when problems were reported is about 60,000 miles.

Are Mitsubishi recall repairs free?

Yes. Safety recall repairs are free at authorized Mitsubishi dealers, whether you are the first owner or bought the car used.