This is a Technical Information Notice informing dealers and parts managers about possible causes after a customer complains that the engine will not start while using the remote start system.
full bulletin at NHTSA ↗2012 Mitsubishi Lancer engine problems
moderate 5 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
5
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 5 engine complaints filed for the 2012 Mitsubishi Lancer, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 5 model years of Mitsubishi Lancer we track for engine problems, this one has the fewest owner complaints on file (5).
No new NHTSA engine complaint has been filed on this vehicle in over 12 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This Technical Service Bulletin contains technical information and troubleshooting for the accessory Remote Engine Start system for affected vehicles.
full bulletin at NHTSA ↗This TSB provides revisions to the Removal and Installation procedures for the rocker cover due to changes in the quantity of mounting bolts for vehicles equipped with 4B1 series engine. (Service Manual Revision)
full bulletin at NHTSA ↗This Technical Information Notice provides additional instructions to dealers when replacing the Valve Cover Gasket due to a customer concern of oil leaking.
full bulletin at NHTSA ↗This TSB updates the Engine section of the affected Service Manuals, to revise the accessory drive belt and tensioner repair and maintenance procedures.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 5 most recent
Tl* the contact owns a 2012 Mitsubishi lancer. The contact stated that when the accelerator was depressed, the vehicle failed to accelerate and stalled with no warnings. The vehicle was taken to a dealer and the mechanic stated that the central computer needed to be replaced. The vehicle was not repaired. The manufacturer was not notified. The approximate failure mileage was 100. The approximate…
Tl* the contact owns a 2012 Mitsubishi lancer. While driving approximately 30-40 MPH, the accelerator pedal was depressed; however, there was a hesitation before the vehicle responded. The vehicle did not stall. Additionally, there was a rattling sound underneath the vehicle in close proximity to the engine. The vehicle was taken to expressway Mitsubishi (located at 5511 e indiana st, evansville,…
I own a 2012 Mitsubishi Lancer and I have been experiencing issues with the engine. The check engine light comes on constantly then disappears for about 2 weeks and then comes back soon after. This has been a ongoing thing since i got the car a few months ago. Also, my battery light will come on (with noise and notice) then quickly turn off and not come back on. This happens on and off also. I…
Approximately May, 2020, prior to getting the vehicle inspected, code P0420 indicated a faulty catalytic converters. At this time, the vehicle had an estimated 170,000 miles on it so I replaced the catalytic converter, not thinking much of it. The we’re not further issues for about a year until June, 2021, when, once again, the computer started reading a P0420 code. Having only 30,000 - 40,000…
NHTSA safety report 06/2021 — while driving approximately 45-50 mph, the ABS warning light and traction control light suddenly came on the display so I reduced speed and had planned to proceed to the next service station which was approximately 1.5 miles away. However, when I was approximately 1/2 mile from the station the engine stalled, the vehicle slightly jerked, and the the engine died. At…
Had engine trouble with your 2012 Mitsubishi Lancer?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2012 Mitsubishi Lancer?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 5 complaints filed, engine issues most often appear around 80,839 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2012/Mitsubishi/Lancer.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.