Component

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

4,393 NHTSA complaints about engine and engine cooling:exhaust system issues across 51 makes and 633 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

4,393 filings · 633 models · 51 makes · vintage August 2026

  • FILINGS HEAVY 4,393 ODI rows
  • MODELS 633 nameplates citing this part
  • MAKES 51 manufacturers in corpus
  • CRASH 1.6% 72 crash-flagged
  • RANK #55 of 696 categories
  • SEV INJURY 8 deaths · 206 injuries
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM (this)ENGINE AND ENGINE COOLING:EX…4,393ELECTRICAL SYSTEM:WIRING4,279VISIBILITY:WINDSHIELD WIPER/WASHER:MOTORVISIBILITY:WINDSHIELD WIPER/…4,269SEAT BELTS:FRONT:RETRACTOR4,238
ODI filing volume neighbourhood: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM vs nearest complaint-total peers

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM sits HEAVY on ODI intake volume (#55 of 696 standardized categories) with a INJURY severity stamp (8 reported fatalities across 633 models). Open Ford Explorer (category leader) →

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM filing-volume reading

The standout signal for engine and engine cooling:exhaust system is ODI intake volume: 4,393 filings (HEAVY band · #55 of 696 standardized categories) across 633 nameplates. Crash-flag share is 1.6%.

Heavy intake categories like this one often reflect a shared supplier or a stressed FMVSS test, open the affected-vehicles table to see whether filings cluster on a few platforms or spread evenly.

Next step: compare Ford Explorer against ELECTRICAL SYSTEM:WIRING on filing totals before treating engine and engine cooling:exhaust system volume as a purchase signal.

4,393
Complaints
633
Models Affected
72
Crashes
192
Fires
8
Deaths

Most Affected Vehicles

# Vehicle Complaints
1 Ford Explorer
189
2 Nissan Altima
180
3 Ford F-150
79
4 Nissan Pathfinder
73
5 Ford Taurus
73
6 Toyota Corolla
67
7 Jeep Wrangler
64
8 Toyota Camry
63
9 Nissan Titan
61
10 Honda Accord
56
11 Mercury Villager
51
12 KIA Sportage
51
13 Honda Civic
49
14 Volkswagen Jetta
47
15 Ford Windstar
45
16 Chevrolet Blazer
44
17 Nissan Maxima
43
18 Ford F-250 SD
42
19 Ford F-250
39
20 Jeep Grand Cherokee
37
21 Dodge RAM 2500
36
22 Ford Focus
35
23 Volkswagen Passat
34
24 KIA Sephia
34
25 Ford F-350
34
26 Nissan Quest
33
27 Dodge RAM 1500
33
28 Toyota Tundra
32
29 Ford Escape
31

Recent Complaints

2019 Subaru Ascent

The contact owns a 2019 Subaru Ascent. The contact stated that while the engine was idling, exhaust fumes entered the cabin of the vehicle. Additionally, immediately after starting the vehicle, there

2018 Chevrolet Traverse

The contact owns a 2018 Chevrolet Traverse. The contact stated that while driving at 25 MPH, there were exhaust fumes entering the cabin of the vehicle. The check engine warning light was illuminated.

2020 Ford Ecosport

The contact owns a 2020 Ford EcoSport. The contact stated that while driving at an undisclosed speed, there was an abnormal odor entering the cabin of the vehicle. The contact stated that the odor was

2025 Toyota Highlander

The contact owns a 2025 Toyota Highlander. The contact stated while driving at an undisclosed speed, there was an abnormally strong odor entering the cabin of the vehicle through the vents. The window

2020 Chevrolet Traverse

The contact owns a 2020 Chevrolet Traverse. The contact stated that while the vehicle was parked and occupied in the vehicle, there was a rattling sound coming from the front of the vehicle while stat

2024 Ford Bronco Sport

The contact owns a 2024 Ford Bronco Sport. The contact stated that while starting the vehicle, there was a ticking sound coming from the engine compartment. There was no warning light illuminated. Add

2021 Cadillac XT6

The contact owns a 2021 Cadillac XT6. The contact stated that while sitting inside the vehicle, the vehicle felt unbalanced. Upon inspection, the contact noticed that the H-pipe was leaning more to th

2020 RAM 1500

The contact owns a 2020 Ram 1500. The contact stated that while the vehicle was parked or while driving, the contact smelled an abnormal exhaust odor, and there was a rattling sound coming from the ex

2021 Buick Encore GX

The contact owns a 2021 Buick Encore GX. The contact stated while depressing the brake pedal to make a right turn, there was an abnormally loud popping and scrapping sound coming from underneath the v

2016 Subaru Crosstrek

Within 24 hours of purchase, the exhaust pipe became detached underneath the vehicle and exhaust fumes and odor were entering the cabin while driving. This created a potential carbon monoxide exposure

2021 Chevrolet Traverse

The contact owns a 2021 Chevrolet Traverse. The contact stated that while starting the vehicle, the front exhaust pipe made an abnormally loud sound, and there was an odor inside the vehicle. The vehi

2017 Chevrolet Equinox

The contact owns a 2017 Chevrolet Equinox. The contact stated that while driving at 10 MPH, there was an abnormal odor entering the cabin of the vehicle while the air conditioning system was activated

2022 Buick Encore GX

The contact owns a 2022 Buick Encore GX. The contact stated while driving approximately 20 MPH and depressing the accelerator pedal, the vehicle failed to exceed 35 MPH and made an abnormal loud sound

2025 Nissan Rogue

The contact owns a 2025 Nissan Rogue. The contact stated that while driving at an undisclosed speed, there was an abnormally strong sulfur odor inside the vehicle. The vehicle was taken to the dealer,

2013 Ford F-150

The contact owns a 2013 Ford F-150. The contact stated that while driving at various speeds, there was an abnormally high-pitched whistling sound coming from the engine bay. The contact was mechanical

2017 Nissan Titan

The contact owns a 2017 Nissan Titan. The contact stated that while driving at various speeds, there was an exhaust odor entering the cabin of the vehicle. The contact was forced to lower the windows

2015 Subaru Outback

The contact owns a 2015 Subaru Outback. The contact stated that while driving at an undisclosed speed, and while at a stop light, there was an abnormal exhaust fumes odor inside the vehicle. There wer

2020 GMC Sierra 1500

Tick sound coming from underneath. Also fumes smell. Dealership found it to be the exhaust system. Said the muffler valve is bad. Quoted me $2000 for repair. Never heard of a exhaust system failure

2020 Chevrolet Traverse

The contact owns a 2020 Chevrolet Traverse. The contact stated that while driving at undisclosed speeds, there were abnormal sounds coming from the exhaust system. The contact stated that the vehicle

2018 Chevrolet Traverse

The contact owns a 2018 Chevrolet Traverse. The contact stated while driving at various speeds, the vehicle was making an abnormally loud sound that became louder over time. The vehicle was taken to a

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