Service bulletin - The oil control rings may become clogged with carbon deposits. These deposits restrict the ability to scrape and return oil from the cylinder walls to the crankcase, which can result in misfires, engine cylinder damage, engine cylinder head damage, and/or engine oil consumption that may exceed customer expectations.
full bulletin at NHTSA ↗2012 Honda Insight engine problems
moderate Owners of the 2012 Honda Insight have filed 34 NHTSA complaints about the engine, typically surfacing around 72,429 miles at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Failure mileage
Complaints
34
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2010 Insight | 3 |
| 2012 Insight (this page) | 34 |
| 2013 Insight | 23 |
When does it fail?
Of the 34 engine complaints filed for the 2012 Honda Insight, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 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.
How fast does it fail?
Cumulative share of the 12 mileage-bearing engine complaints filed against the 2012 Honda Insight by each odometer reading. Median failure: 95,000 mi.
10% have failed by58,000 mi
Half the fleet by95,000 mi
90% have failed by130,200 mi
Curve based on owner-reported odometer mileage at the time of complaint. Reflects when owners filed, not when symptoms first appeared. Maintenance habits and driving conditions shift the curve.
What stands out
Of the 4 model years of Honda Insight we track for engine problems, this one carries the most owner complaints on file — 34.
Owners have filed 34 engine complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
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.
CUSTOMER LETTER - ON SOME 201213 INSIGHT VEHICLES, THE OIL CONTROL RINGS MAY BECOME CLOGGED WITH CARBON DEPOSITS. THESE DEPOSITS RESTRICT THE CONTROL RINGS ABILITY TO SCRAPE AND RETURN OIL FROM THE CYLINDER WALLS TO THE CRANKCASE AND THIS ENGINE OIL CONSUMPTION MAY EXCEED CUSTOMER EXPECTATIONS.
full bulletin at NHTSA ↗"SERVICE BULLETIN - THE OIL CONTROL RINGS MAY BECOME CLOGGED WITH CARBON DEPOSITS. THESE DEPOSITS RESTRICT THE ABILITY TO SCRAPE AND RETURN OIL FROM THE CYLINDER WALLS TO THE CRANKCASE, WHICH CAN RESULT IN MISFIRES, ENGINE CYLINDER DAMAGE, ENGINE CYLINDER HEAD DAMAGE, AND/OR ENGINE OIL CONSUMPTION THAT MAY EXCEED CUSTOMER EXPECTATIONS. TO INCREASE CUSTOMER CONFIDENCE, AMERICAN HONDA IS EXTENDING THE WARRANTY ON THE ENGINE RELATED TO ENGINE OIL CONSUMPTION TO 8 YEARS FROM THE ORIGINAL DATE OF PURCHASE WITH NO MILEAGE LIMIT."
full bulletin at NHTSA ↗"SERVICE BULLETIN - THE OIL CONTROL RINGS MAY BECOME CLOGGED WITH CARBON DEPOSITS. THESE DEPOSITS RESTRICT THE ABILITY TO SCRAPE AND RETURN OIL FROM THE CYLINDER WALLS TO THE CRANKCASE, WHICH CAN RESULT IN MISFIRES, ENGINE CYLINDER DAMAGE, ENGINE CYLINDER HEAD DAMAGE, AND/OR ENGINE OIL CONSUMPTION THAT MAY EXCEED CUSTOMER EXPECTATIONS."
full bulletin at NHTSA ↗"SERVICE BULLETIN - THIS BULLETIN IS REPLACED BY S/B 16-101, WARRANTY EXTENSION: 201213 INSIGHT OIL CONSUMPTION EXCEEDS CUSTOMER EXPECTATIONS"
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2012 Honda Insights report that their engines burn oil at rates of 0.5 to 1.5 quarts per 1,000 miles starting between 55,000 and 70,000 miles—far above normal. Check emission lights come on repeatedly, oil levels drop despite no visible leaks, and the manufacturer's oil consumption test (done every 1,000 miles) repeatedly shows the problem, yet Honda simply declares 1.0–1.5 quarts per 1,000 miles as "normal" and closes cases.
The oil saturation then fouls spark plugs, causing them to fail every 3,000–4,000 miles with replacement costs of $50–$150 per visit. More dangerously, owners lose engine power without warning while driving—sometimes on highways. The vehicle enters limp mode (capped at 5–16 mph) or shuts down completely, with all dashboard lights illuminating at once. Some had stalls occur while merging onto interstates or pulling into traffic, creating rear-end collision hazards.
Internal engine damage follows: pistons, cylinder heads, and valves degrade from oil intrusion, killing compression and power. Engine rebuilds or full replacements run $8,000–$17,000. Honda's 60,000-mile powertrain warranty expires before the failures typically surface, and the company has refused recalls or out-of-warranty repairs. Owners cite Technical Service Bulletin #11-033 and a class-action lawsuit (Soto et al., Case No. 3:12-CV-1377-SI) that identified a systematic design defect where the Variable Cylinder Management system causes the engine to work too hard at cruise speeds, damaging piston rings and allowing oil into combustion chambers.
Same Honda Insight engine reports on nearby years: 2013
Failure modes owners describe
Excessive Oil Consumption
Engine burns oil at abnormally high rates, ranging from 0.5 quarts per 2,000 miles to 1.5 quarts per 1,000 miles. No external oil leaks present. Manifests as low oil warnings and check emission lights despite adequate maintenance intervals.
When: Typically emerges between 55,000–70,000 miles; progressively worsens with additional mileage
Symptoms owners cite: Check emission system warning light illuminates; Oil level drops rapidly between services; Low oil warning light does not trigger until oil is critically depleted; Oil consumption rate accelerates as mileage increases; No visible external leaks underneath vehicle
Codes mentioned: P0420 (catalyst system below minimum threshold), Check emission system fault code
Repairs/costs cited: Honda authorized oil consumption test (1,000-mile protocol); owners report piston ring replacement under warranty; engine block replacement quoted at $8,000–$17,000 out of warranty; labor includes spark plug replacement and oil changes at each test interval
Recalls/TSBs owners mention: Honda acknowledges 1.0–1.5 quarts per 1,000 miles as 'normal' per engineering determination; closed cases without remedy; extended warranty offered on selective basis to original owners within warranty period; Technical Service Bulletin #11-033 (July 2011) references VCM switching issue under light throttle; class-action lawsuit Soto et al. v. American Honda Motor Co., Inc., Case No. 3:12-CV-1377-SI acknowledged systematic design defect allowing oil into combustion chamber
Spark Plug Fouling and Premature Failure
Spark plugs foul and fail prematurely due to oil saturation, occurring every 3,000–4,000 miles in severe cases. All cylinders become oil-fouled, especially cylinder four. Plug electrodes burn away or melt completely, disabling ignition and triggering limp mode.
When: Develops in tandem with oil consumption, typically after 55,000–85,000 miles
Symptoms owners cite: Spark plugs fouled with oil residue; Multiple plug electrode burnout or complete electrode absence; Engine fluttering and power loss upon acceleration; Reduced power and inability to maintain highway speeds (vehicle limited to 5–16 mph); Limp mode activation without warning
Codes mentioned: Misfire codes (cylinders 1–4), Check engine light, Emissions fault
Repairs/costs cited: Spark plug replacement every 3,000–4,000 miles at approximately $50–$150 per service; owners report replacing all 8 plugs two or more times within 12 months; some cite labor cost of $1,700 for plug replacement and inspection
Recalls/TSBs owners mention: No specific manufacturer response documented; owners indicate Honda refuses recall or repair authorization after warranty expiration
Loss of Engine Power and Stalling
Vehicle suddenly loses acceleration power or shuts down entirely while driving, often on highway at cruise speed. Engine enters limp mode (5–16 mph max) or complete shutdown with multiple warning lights illuminated. Occurs without driver warning.
When: Emerges between 56,000–135,000 miles; becomes more frequent as oil consumption worsens
Symptoms owners cite: Complete loss of accelerator response at highway speed; Vehicle limited to extremely low speeds (5–16 mph) in limp mode; All dashboard warning lights illuminate simultaneously; Engine stalls during acceleration or routine driving; Engine makes loud puttering or stuttering noise; Restart difficult or impossible without delay
Codes mentioned: Multiple fault codes for check engine, emissions, ABS, hill-start, VSA, Catalyst below minimum threshold (P0420)
Repairs/costs cited: Full engine overhaul or long-block replacement required; quoted costs $8,000–$17,000; some owners cite one week minimum downtime with dealer waiting list
Recalls/TSBs owners mention: Honda denies warranty coverage and responsibility if failure occurs outside 60,000-mile powertrain warranty period; refuses loaner vehicles; case closures without resolution
Internal Engine Damage (Piston, Cylinder Head, Valves)
Oil saturation in cylinders leads to severe internal engine wear and mechanical failure. Cylinder head, pistons, piston rings, and valves degrade; compression is lost. Cylinder 3 and 4 most frequently reported as damaged.
When: Develops progressively from 55,000 miles onward; catastrophic failure often occurs between 80,000–135,000 miles
Symptoms owners cite: Loss of compression in one or more cylinders; Severe power loss (accelerometer pegged out, cannot climb hills); Fuel economy drops from 43 mpg to 30 mpg; Rough idle and stuttering under load; Engine stalling with multiple warning lights
Codes mentioned: Misfire fault codes (cylinders 1–4), Check engine light, Emissions codes
Repairs/costs cited: Piston ring replacement attempted in some cases under warranty but does not resolve issue; full engine block or long-block replacement becomes necessary; estimated cost $8,000–$17,000; one owner cited dealer requiring engine block replacement after piston ring service failed
Recalls/TSBs owners mention: Honda acknowledges in Soto litigation that design defect enables oil entry into combustion chamber; Technical Service Bulletin #11-033 cites VCM (Variable Cylinder Management) repeatedly switching on/off, causing excessive engine load; manufacturer refused recall; warranty denials after 60,000 miles standard
Fuel Economy Degradation
Fuel consumption increases dramatically as oil burning worsens, especially after 120,000 miles. EPA-estimated efficiency drops from manufacturer spec (43 mpg) to 30 mpg or worse.
When: Occurs progressively as oil consumption and internal damage advance
Symptoms owners cite: Sharp drop in miles per gallon (43 mpg to 30 mpg); Reduced power requiring higher throttle input; Inefficient combustion due to oil fouling
Repairs/costs cited: No repair addresses this symptom without full engine overhaul
Synthesized from 34 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 13 most recent
Tl* the contact owns a 2012 Honda insight. While driving at any speed, the oil indicator illuminated and "check oil" displayed on the instrument panel. The check emission warning indicator remained illuminated. The vehicle was driven to a mechanic who diagnosed that the piston and rings had to be replaced. The manufacturer was notified. The vehicle was not repaired. The approximate failure…
The car has only 83000 miles. We bought the vehicle 2 months ago from the estate of an individual that passed away. We were driving the vehicle and the gas pedal stopped working. Prior to this happening, we noticed no oil leak from the car. Per the manual we were checking oil level everytime we filled car up and would top it as it would be lower. We were driving the car on the highway and when…
Oil consumption and shaking
Within the warranty period I noticed that car is consuming unusual quantity of oil (around 58,000 miles). A warning light came on 'check emission system'. I pulled the dipstick and there was barely any oil on the tip. I put 2 quarts of oil into the engine and it still did not reach the top fill line. The car only holds 3.5 quarts. The 'low oil light' never came on, how much oil has to…
I am consuming to much oil. I did not know that there was a problem til after I bought car and the check emission light came on. I thought it was because I didn't not screw my gas cap on tight enough. Then I went to a local store to have them check my oil and they said I had none, and checked my mileage, they said I should have had oil in there at the mileage number it was at. So I have taken the…
Car quite running on busy interstate I managed to get off nearest exit almost got hit by several vehicles.had to have towed to auto shop that had replaced 8 spark plugs 8 monthes earlier. Automotive shop replaced plugs 8 plugs said they where under warranty but found no compression in cylinders.
My Honda insight 2012 is burning oil. After an oil change I drive around 3500 mile and the red engine oil warning light comes on. First time it happened I took the car ,like 3-4 years ago, to the dealer. They replaced the piston rings under warranty but it did not solve the problem. I am dealing with this problem for the last around 3-4 years. It always happens after around 3500 mile, I get the…
About two months ago, my car began fluttering after I started the engine and began accelerating. The power felt reduced as well. Like most people's first instinct, I began checking the oil and noticed the oil appeared low especially considering that I had received an oil change not long before this occurred. Since then I've head to check the oil incessantly and am constantly adding oil to…
Car has 95,000 miles. High oil consumption. All 8 spark plugs have to be changed every 3-4000 miles. Very expensive. The problem is the spark plugs get fouled, and burnt up, so there is no electrode left. When that happens the car immediately slows down to 5 MPH. I almost got killed and run over by a tractor trailer last sat. 10/29/16 on interstate 81 south by new milford, pa. He was right on my…
This car is the absolute worst car I have ever owned. The oil consumption is outrageous and the car only has 89k miles on it. It also burns through spark plugs like crazy, I've probably put close to 500 dollars into it at least just in oil and spark plugs this year alone. In the two years I have owned it, it has left me stranded in strange neighborhoods, parking lots, at my job, and at my home…
Had engine trouble with your 2012 Honda Insight?
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 Honda Insight?
It's a documented issue but not catastrophic. 34 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?
Across the 31 complaints that reported odometer mileage, most engine failures cluster between 59,000 and 95,000 miles, with the median around 72,429. A quarter of owners report trouble before 59,000; a quarter make it past 95,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
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/Honda/Insight.
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.