Engine fire — Sonata 2019, 36 mo. in service
2019 Sonata 2.5L 6-cyl · running above peer fleet for 4 consecutive months
0.25
PP100
vs upper limit 0.10
+0.15
vs peer 2018
Bundled evidence
12service-bay
8NHTSA VOQ
4warranty
1FSE report
2customer assist
27 records · 9 marked IN
AssignedSteve R.
CMT caseN-02-0010
Sealed bySODAS · ML
Vehicle · MMY
Hyundai
Sonata 2019
Engine 2.5L 6-cyl
Trim SEL · SE · V
In service 36 mo.
Trend · MIS PP100
0.400.300.200.100
0.30
0.10 limit
Start36 mo
Hazard
CRITICAL
Fire / Smoke
HAZ-CAT 2Exposure to fire / smoke / liquids / vapors
HAZ-CAT 3Open flame
Evidence collected
27
9 IN ·
1 OUT ·
17 deferred
across 5 sources
across 5 sources
Alert · Artifact
SODAS-20260428-0917-MIS-0042
Under investigation
Opened 09:17 UTC · Steve R.
SLA 4d 22h remaining
SLA 4d 22h remaining
Systems · fire-hazard potential
ENG · OIL PUMP 12
ELEC · UNDERHOOD 3
BRK · CALIPER 2
FUEL · LINES / PUMP 1
EXH · CATALYTIC 0
HVAC · BLOWER 0
BAT · 12V 0
TURBO · OIL STARVE 0
WIRE · HARNESS 0
Overview
Sources27
Multivariate
Notes4
Evidence chain
Send to CMT
NHTSA VOQ
8 records
Mark all IN
Open all
NHTSA-1237279
Front brakes failed at 9/15 forcing emergency brake. Engine fire followed; vehicle towed. 3rd brake set; defective caliper grinding.
Sonata 2019
2019-11-12
2019-11-12
NHTSA-1237401
Smoke from engine bay at idle, open flame visible from oil pump area. P0340 logged.
Sonata 2019
2019-12-04
2019-12-04
NHTSA-1239812
Fire reported by customer, dealer replaced engine under warranty. Oil pump failure noted on RO.
Sonata 2019
2020-02-11
2020-02-11
NHTSA-1241055
Smoke complaint — root-caused to aftermarket alarm install, not vehicle defect.
Sonata 2019
2020-04-22
2020-04-22
NHTSA-1244998
Underhood smoke, intermittent. No fire. Oil consumption reported same visit.
Sonata 2019
2020-08-03
2020-08-03
Service Bay (Incidents)
12 records
Mark all IN
Open all
RO-44102
Tech replaced oil pump assy + 2 tensioners. P0340 stored. Customer reported "rough run" prior. Mileage 54,250.
Sonata 2019
2020-01-09
2020-01-09
RO-44519
Engine short-block replaced under warranty after timing chain jumped 4 teeth. Oil pump + chain replaced.
Sonata 2019
2020-03-18
2020-03-18
RO-45003
Oil pan filled with metal shavings. Engine replaced. RO notes "oil pump failure caused metal in pan."
Sonata 2019
2020-05-02
2020-05-02
RO-45221
Coolant leak from water pump. Replaced. No fire/smoke complaint.
Sonata 2019
2020-06-14
2020-06-14
Warranty Claims
4 records
Mark all IN
CLM-69899A
Causal part: bearing pair (CR/SHF CTR). Cause Z23 / Nature 13A — warning lamp on, sluggish. Engine short-block replaced.
Tucson 2018
2019-08-17
2019-08-17
CLM-71203B
Engine assy replaced, oil pump failure cause code. 18,400 mi.
Sonata 2019
2020-01-22
2020-01-22
FSE Field Engineer Report
1 record
FSE-2020-0118
FSE bench-tested 6 returned oil pumps from 2.5L 6-cyl Sonatas. 4/6 showed inner rotor scoring; root cause: tolerance stack-up in supplier batch lot 2018-Q4.
Sonata 2019
2020-04-30
2020-04-30
SODAS ran multivariate analysis on the 9 records marked IN across NHTSA VOQ, service bay, warranty, and FSE sources. Common attributes ranked by frequency:
Engine — 2.5L 6-cylConf · 0.96
8 of 9 records · 89%
Subpart — Oil pump assyConf · 0.91
7 of 9 records · 78% · DTC P0340 in 5
Repair — Engine short-block replacedConf · 0.84
6 of 9 records · 67%
Months in service — 30 to 42Conf · 0.79
6 of 9 records · median 36 mo.
Supplier batch — 2018-Q4 lotConf · 0.72 · FSE
4 of 9 traceable to lot · 44%
SODAS · ML recommendation
Cluster signature points to oil pump tolerance defect in 2018-Q4 supplier batch, surfacing as engine fires after 30+ mo. Recommend opening CMT case targeting Sonata 2019 with 2.5L 6-cyl, supplier lot trace required.
SR
Started review. Marking the 4 oil-pump RO records IN, the aftermarket-alarm one OUT. Want to pull the FSE bench report before next steps.
JL
FSE report attached. The 2018-Q4 batch trace is the lead — let's request lot data from Mobis for the IN'd VINs.
SR
Multivariate clustered the 9 IN records — 78% share oil pump failure, P0340 in 5/9. Ready to escalate.
ML
Confidence threshold met (0.78 ≥ 0.70). Auto-suggested CMT case template populated. Awaiting analyst seal.
Every action on this artifact is sealed and tamper-evident. The chain is what a regulator audits.
Threshold breached — alert opened
SODAS pipeline detected MIS = 0.25 PP100 against upper limit 0.10 for Sonata 2019, 36 mo. service. Alert artifact created.
SEAL · sodas-09:17:14:0042
Records bundled — 27 sources joined
8 NHTSA VOQ + 12 service-bay incidents + 4 warranty claims + 1 FSE report + 2 customer assistance writeups attached as evidence.
SEAL · sodas-09:17:18:0043
Assigned — Steve R.
Hazard category Fire/Smoke + region NA → routed to data analyst pool. Steve R. claimed within SLA.
SEAL · sodas-09:18:02:0044
IN/OUT triage — 9 IN, 1 OUT, 17 deferred
Analyst marked 9 records IN as relevant evidence. 1 record OUT (root-caused to aftermarket install, not vehicle defect). 17 left in monitor queue.
SEAL · sodas-13:48:55:0067
Multivariate run — pattern clustered
5 attributes ranked. Top signal: oil pump failure across 2018-Q4 supplier batch, 89% engine match, 78% subpart match.
SEAL · sodas-13:51:12:0071
Awaiting analyst seal — CMT handoff drafted
CMT case template auto-populated with bundled IN records, multivariate analysis, supplier lot trace request. Analyst review required before send.
PENDING · awaiting Steve R.
CMT case opened
Will create case in CMT via API, attach this sealed artifact ID, and lock further IN/OUT changes on the bundled evidence.
What triggered this artifact
MIS metric for 2019 Sonata at 36 months in service crossed the upper-limit threshold (0.25 PP100 vs 0.10 ceiling) for the 4th consecutive month. The peer 2018 Sonata is at 0.10 — a +0.15 delta.
Why it matters
Hazard category Fire/Smoke with at least one open-flame VOQ. NHTSA timely-reporting clock starts at threshold breach. Missing the 5-day decision window triggers an investigation.
Affected hazard categories
HAZ-CAT 2 · Exposure to fire/smoke/liquids/toxic vapors/leaks
HAZ-CAT 3 · Open flame
Decision needed
Either seal & open CMT case (recommended — multivariate > 0.70 confidence) or continue monitoring with documented rationale.
CMT case template auto-populated from this artifact's bundled evidence and multivariate analysis. Review the fields and seal to send.
Make · Model · Year
Hyundai Sonata 2019
Region
North America
Primary hazard
Exposure to fire / smoke / liquids / toxic vapors / leaks
Severity
Critical (3 of 5)
Subject
2019 Sonata 2.5L 6-cyl — engine fire cluster, oil pump failure (2018-Q4 supplier batch suspected)
Source artifact
SODAS-20260428-0917-MIS-0042 · 9 records IN · 5 multivariate signals · sealed evidence chain (6 steps)Component category
Engine · Subpart: oil pump assy
Tracking IDs
NHTSA · 1237279, 1237401, 1239812