Vehicle safety record

2015 Dynamax DX3 Problems, complaints & recalls

Owners have filed 1 complaint about the 2015 Dynamax DX3 with NHTSA, most often about the fuel system (1). There are no recalls for it.

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NHTSA data checked 23 hours ago

93/100Safety Index

AFar fewer problems than a typical DX3 year, for its age

#433 most complained-about 2015 vehicle

Complaints: 1
Recalls: 0
Crashes: 0
Fires: 0
Injuries: 0
Deaths: 0

Most common 2015 Dynamax DX3 problems

Fuel system1100%

Share of all 1 complaints. One complaint can name more than one area. Tap an area for its complaints and recalls.

No recalls for the 2015 Dynamax DX3

NHTSA lists no recalls for the 2015 Dynamax DX3. Recalls can be announced at any time - this page updates daily.

What owners say

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1 complaints about the 2015 Dynamax DX3

Newest first, as filed with NHTSA by owners.

Fuel 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 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...

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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.

Dynamax DX3: every year compared

12015 2020 2021 2022 2023 2024 2025 2026

Year	Complaints	Recalls	Crashes	Fires	Top problem	Grade
2015	1	0	0	0	Fuel system	A

All DX3 years

Questions about the 2015 Dynamax DX3

Does the 2015 Dynamax DX3 have any recalls?

NHTSA lists no recalls for the 2015 Dynamax DX3 right now. Recalls can be announced at any time, and this page checks NHTSA every day. You can also check your exact vehicle by VIN at nhtsa.gov/recalls.

What are the most common problems with the 2015 Dynamax DX3?

By the complaints owners filed with NHTSA, the most common problem areas are the fuel system (1).

How many complaints has the 2015 Dynamax DX3 had?

1 complaints have been filed with NHTSA, the first on July 23, 2026 and the latest on July 23, 2026. Of these, 0 describe a crash and 0 a fire, and together they report 0 injuries and 0 deaths.

Is the 2015 Dynamax DX3 a reliable vehicle?

Its Safety Index is 93 out of 100 (grade A: far fewer problems than a typical Dynamax DX3 year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.

Which Dynamax DX3 years have the most complaints?

2015 (1), 2023 (1), 2025 (1). See every Dynamax DX3 year compared.

What should I do if my 2015 Dynamax DX3 has a problem?

If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked 23 hours ago. Complaints are owners' own reports and are not verified. How we use the data