Problems owners report
Complaints filed with NHTSA about the 1990 Mitsubishi Sigma, by the system named in each complaint. One complaint can name several.
- Seat belts2
- Engine and engine cooling1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
In New Zealand
1 1990 cars are on the New Zealand register; 100% arrived as used imports, 0% were sold new in New Zealand.
NZ Transport Agency Waka Kotahi, Motor Vehicle Register (March 2026) · CC BY 4.0
Recalls
THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Mitsubishi told its dealers about the 1990 Mitsubishi Sigma: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 600571 | INFORMATION ABOUT IMPROVED AUTOMATIC TRANSAXLE END CLUTCH. *TT |
| 52633 | VALVE LASH ADJUSTER PROCEDURES - SERVICE MANUAL REVISION. *TW |
| 10170852 | This Technical Service Bulletin updates the door adjustment procedure in the Body Section of the applicable service manuals. |
| 10169006 | This is a service newsletter (Tech Talk) that was sent out to dealers. |
| 10163703 | This is a Technical Service Bulletin sent to dealers. This bulletin supersedes TSB-18-00-003, issued April, 2018, to add updated information for Carrying Capacity Reduced Label. |
| 10130469 | This is a service newsletter (Tech Talk) that was sent out to dealers. |
NHTSA manufacturer communications (public domain)
NHTSA investigations
TAKATA SEAT BELT BUCKLE FAILURE
NHTSA Office of Defects Investigation