Component

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

2,048 NHTSA complaints about engine and engine cooling:exhaust system:emission control issues across 46 makes and 394 models.

Data updated August 2026. Counts render from the NHTSA Office of Defects Investigation standardized component field; severity flags cross-reference NHTSA ODI complaint flags for owner-reported crash, fire, and injury markers. This page is for informational purposes and does not replace NHTSA recall notices or a vehicle-specific inspection. Methodology · Corrections.

NHTSA ODI component intake brief

ODI category ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

2,048 filings · 394 models · 46 makes · vintage August 2026

  • FILINGS MODERATE 2,048 ODI rows
  • MODELS 394 nameplates citing this part
  • MAKES 46 manufacturers in corpus
  • CRASH 0.9% 19 crash-flagged
  • RANK #105 of 696 categories
  • SEV INJURY 2 deaths · 40 injuries
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL (this)ENGINE AND ENGINE COOLING:EX…2,048FUEL SYSTEM, GASOLINE:DELIVERYFUEL SYSTEM, GASOLINE:DELIVE…2,045EXTERIOR LIGHTING:BRAKE LIGHTSEXTERIOR LIGHTING:BRAKE LIGH…2,042STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTSSTRUCTURE:BODY:DOOR:HINGE AN…2,057
ODI filing volume neighbourhood: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL vs nearest complaint-total peers

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL sits MODERATE on ODI intake volume (#105 of 696 standardized categories) with a INJURY severity stamp (2 reported fatalities across 394 models). Open Ford Windstar (category leader) →

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL filing-volume reading

The standout signal for engine and engine cooling:exhaust system:emission control is ODI intake volume: 2,048 filings (MODERATE band · #105 of 696 standardized categories) across 394 nameplates. Crash-flag share is 0.9%.

Moderate-volume categories still show a fingerprint in the model table below, cross-check each nameplate's recall and investigation history before inferring a defect pattern.

Next step: compare Ford Windstar against FUEL SYSTEM, GASOLINE:DELIVERY on filing totals before treating engine and engine cooling:exhaust system:emission control volume as a purchase signal.

2,048
Complaints
394
Models Affected
19
Crashes
28
Fires
2
Deaths

Most Affected Vehicles

# Vehicle Complaints
1 Ford Windstar
69
2 Volkswagen Jetta
67
3 Ford Taurus
65
4 Toyota Camry
52
5 Ford Explorer
50
6 Toyota Corolla
47
7 Nissan Maxima
44
8 Dodge Caravan
43
9 Mercury Villager
38
10 Jeep Grand Cherokee
35
11 Volkswagen Passat
30
12 Ford Contour
25
13 Honda Civic
24
14 Mercury Sable
23
15 Honda Accord
23
16 Chevrolet Blazer
23
17 Ford F-150
20
18 Dodge Neon
20
19 Nissan Quest
19
20 Nissan Pathfinder
19
21 Ford Focus
19
22 Chevrolet S10
19
23 Dodge Intrepid
18
24 Pontiac Grand AM
17
25 KIA Sportage
17
26 Ford Mustang
17
27 Volkswagen Beetle
16
28 Dodge RAM
16
29 Dodge Grand Caravan
16
30 Toyota Tundra
15

Recent Complaints

2016 Nissan Titan

The contact owns a 2016 Nissan Titan. The contact received notification of Manufacturer Recall Number: PD128; however, the part to do the recall repair was not yet available. The local dealer was cont

2021 Chevrolet Trailblazer

vThe contact owns a 2021 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle. No warning lights were illuminated. The v

2017 BMW X1

The contact owns a 2017 BMW X1. The contact received a notification letter of BMW Campaign Number: SIB 01 02 24(Evap System Purge(Vent) Valve Extended Limited Warranty). The contact stated that while

2023 Chevrolet Trailblazer

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that upon starting the vehicle, the check engine warning light illuminated. The vehicle was taken to a local Auto Zone where a diagnos

2011 KIA Sportage

The contact owns a 2011 Kia Sportage. The contact stated that upon taking the vehicle for the State Inspection, the vehicle failed the Emissions test. The State Inspector diagnosed a failure with the

2020 Ford Escape

The contact owns a 2020 Ford Escape. The contact stated that the vehicle was taken for the State Inspection and the vehicle failed the emissions test. No warning light was illuminated. The vehicle was

2014 Ford Explorer

The contact owns a 2014 Ford Explorer. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed

2018 Honda CR-V

The contact owns a 2018 Honda CR-V. The contact had received notification of NHTSA Campaign Number: 23V858000 (FUEL SYSTEM, GASOLINE). The vehicle was taken to a local dealer for the recall repair; ho

2020 Freightliner Cascadia

Subject: Complaint Regarding Illegal Practices by Lemberg Group My name is [XXX] , and I am currently employed as a driver for Lemberg Group. I operate a white Freightliner Cascadia truck, unit numb

2010 Volkswagen Beetle

The contact owns a 2010 Volkswagen Beetle. The contact stated that while having a routine inspection with an independent mechanic, the contact was informed that the vehicle had failed the inspection d

2024 Honda CR-V Hybrid

See attached document for complaint

2020 Ford F-150

The contact owns a 2020 Ford F-150. The contact stated that the seal underneath the vehicle was fractured nearby the exhaust. There were no warning lights illuminated. The vehicle was taken to the loc

2018 Chevrolet Cruze

The contact owns a 2018 Chevrolet Cruz. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a

2015 Ford F-250

The contact owns a 2015 Ford F-250. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated on the instrument panel. The vehicle was taken to the deal

2018 Hyundai Tucson

The contact owns a 2018 Hyundai Tucson. The contact stated that while operating the vehicle, the check engine warning light remained illuminated. The vehicle was taken to the local dealer who diagnose

2020 GMC Sierra 1500

See attached document for complaint

2018 RAM 3500

67A recall was not performed on my vehicle nor was I notified of it. I have had SCR catalyst issues and def issues and my vehicles constantly fails emissions. Ram and Cummins have stated that my vehic

2013 Toyota Tundra

The contact owns a 2013 Toyota Tundra. The contact stated that upon taking the vehicle in for inspection, the vehicle failed the inspection. The contact was informed that a failure with the air inject

2016 Honda Pilot

The contact owns a 2016 Honda Pilot. The contact stated that on several occasions while driving at various speeds, the emissions warning light illuminated. The light was illuminated for approximately

2020 Acura TLX

I purchased a new Acura TLX in 2020. The following year it took it into get state inspected in Massachusetts. My care failed for emission 3 times. I brought it back to the dealer (Herb Connolly) in

Verify with NHTSA · consumer-reported counts are not verified defect findings.