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2015 Dynamax DX3

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

About this comparison →
1Owner complaints

Model-year median: 0

0Recall campaigns

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0Investigations

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How this year compares

Owner complaints by model year

Other model years Selected year
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20150
2017
Compare all DX3 years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Fuel/propulsion System
1

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 0 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Fuel/propulsion System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

Fuel/propulsion System complaints

1 reports
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Mileage unknown · Jul 23, 2026
Fuel/propulsion System

Got an engine warning light while traveling. Our RV only has 67,000 miles on it. Cummins local dealer reports it is a Selective Catalyst Reduction (SCR) unit problem and unit needs a $10,000 replacement. This SCR is supposed to last 500,000 miles. Cummins refuses to cover the cost for this SCR repair even though Cummins issu…

Read full complaint

Got an engine warning light while traveling. Our RV only has 67,000 miles on it. Cummins local dealer reports it is a Selective Catalyst Reduction (SCR) unit problem and unit needs a $10,000 replacement. This SCR is supposed to last 500,000 miles. Cummins refuses to cover the cost for this SCR repair even though Cummins issued a 2022-2024 voluntary recall acknowledging the problem_Cummins CR 2113. We never received a recall notice. Failure to replace will progressively lead to ghost error codes and eventually having the unit go into limp mode before stopping unexpectedly. Many people with this problem report a similar refusal by Cummins and some have been left on the side of the road when the unit fails because it is a difficult problem to diagnose.

NHTSA ODI #11752392

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.