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1989 Mitsubishi Sigma Base 4AT

The 1989 Mitsubishi Sigma Base 4AT is a 3.0-liter V6 with a 4-speed automatic and front-wheel drive. It starts at $17,294 MSRP and is rated at 18 mpg combined.

EPA fuel-economy estimates are 16 mpg city and 20 mpg highway (18 mpg combined).

The Sigma measures 185.0 inches long on a 102.3-inch wheelbase and has a curb weight of 3,076 lb.

Spec Value
Vehicle
Body TypeSedan
PowertrainGas
Price
MSRP$17,294 ($45,327 *)
Engine
Engine Type3.0 L V6
Displacement3 L
Drivetrain
Drive TypeFWD
Transmission
Transmission4-speed automatic
Fuel Economy
City16 MPG
Highway20 MPG
Combined18 MPG
Recommended FuelRegular unleaded gasoline
Dimensions & Weight
Length185 in
Width66 in
Height51 in
Wheelbase102.3 in
Cargo Volume12 ft³
Curb Weight3,076 lbs
Interior
Headroom Front37 in
Headroom Rear36 in
Legroom Front40 in
Legroom Rear36 in
Shoulder Room Front53 in
Shoulder Room Rear53 in
Hip Room Front53 in
Hip Room Rear53 in
* Amount adjusted for inflation to 2026 dollars

Safety & Recalls

NCAP safety ratings

Not crash-tested by NHTSA for this model year.

Recalls

1 recall on file with NHTSA for the 1989 Mitsubishi SIGMA. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.

May 24, 1995 · SEAT BELTS:FRONT:BUCKLE ASSEMBLY

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.

Consequence: THE SAFETY BELTS WOULD NOT PROVIDE ADEQUATE PROTECTION TO AN OCCUPANT IN A VEHICLE CRASH.

Remedy: OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD ENSURE THAT BOTH BUCKLES ARE OPERATING PROPERLY BY INSERTING EACH LATCH PLATE INTO ITS BUCKLE, TUGGING ON THE BELT TO MAKE SURE THE LATCH IS SECURELY LOCKED, AND THEN PRESSING THE RELEASE BUTTON. THE LATCH PLATE SHOULD POP OUT OF THE BUCKLE WHEN THE BUTTON IS PRESSED. IF EITHER RELEASE BUTTON SHOWS A SIGN OF BREAKING OR CRACKING OR IF EITHER BUCKLE FAILS TO OPERATE PROPERLY, OWNERS SHOULD PROMPTLY CONTACT THEIR AUTHORIZED DEALER TO SCHEDULE AN APPOINTMENT TO HAVE THE BUCKLE REPLACED OR REPAIRED, FREE OF CHARGE. THE MANUFACTURER IS DEVELOPING A REMEDY DESIGNED TO PREVENT FAILURE OF THE BUTTONS THAT ARE NOT CURRENTLY BROKEN.

NHTSA campaign 95V103004

1 owner complaint to NHTSA for the 1989 Mitsubishi SIGMA

Owner Complaints

1 owner complaint filed with NHTSA for the 1989 Mitsubishi SIGMA. See all on nhtsa.gov

Most-cited areas
Power Train1
A complaint can cite more than one area.
Most recent complaints
Jul 3, 1997 · Power Train
“WHILE DRIVING VEHICLE AT VARIOUS SPEEDS, TRANSMISSION WOULD LOCK UP; LOST CONTROL OF VEHICLE 1ST TIME; HAD MECHANIC FIX PROBLEM; PROBLEM REAPPEARED GOING OFF EXIT RAMP 25MPH. AT TRANSMISSION SHOP…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 1989 MITSUBISHI SIGMA. US-market vehicles only; data cached for up to 7 days.

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