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2008-2026 · 18 model years

Entegra Cornerstone Problems by year

Owners have filed 14 complaints about the Entegra Cornerstone across 18 model years, and it has 37 recalls. The 2021 has the most complaints once its age is allowed for (1). The most reported problem area is the engine & cooling, followed by the fuel system.

Most complaints for its age20211 complaint · 6 recallsSee the 2021
Complaints
14
Recalls
37
Crashes
0
Fires
0
Injuries
0
Deaths
0

Cornerstone complaints by model year

Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.

YearComplaintsRecallsCrashesFiresTop problemGrade
20260300-F
20250600-F
20240400-D
20230500-D
20221400Wheels & tiresC
20211600Engine & coolingD
20201500Engine & coolingC
20191500Body, doors & structureC
20184400Engine & coolingC
20176600Engine & coolingC
20160400-B
20150400-B
20140600-C
20130700-C
20120600-C
20110300-A
20100500-B
20080100-A

Most common Cornerstone problems

Entegra Cornerstone recalls 37

Latest Cornerstone complaints

2017 Entegra CornerstoneEngine & cooling

Traveling at highway speeds, engine running at approximately 1,700 RPM without warning, a catastrophic engine failure occurred. Piston connection rod appears to have failed, causing both sides of engine block and oil pan to be destroyed, dumping oil and coolant onto roadway. Cummins ISX15 diesel engine. This dropped large pieces of engine block and debris all over the road causing a danger to other drivers. Because of the travel speed and complete loss of engine power (Red Stop Engine Light) with no warning,...

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vehicle was difficult to control steering and safely getting to side of road. This vehicle was 7 years old, however only had 23,000+/- mile on it. The Stop Engine Light and warning buzzer came on and in less than 60 seconds, while trying to pull over safely on the shoulder of the interstate (again traveling at highway speeds), the catastrophic failure occurred. Vehicle was towed to local Cummins repair center for investigation and repairs.

Filed Incident EngineNHTSA 11613713
2022 Entegra CornerstoneWheels & tires

The contact owns a 2022 Entegra Cornerstone hauled by a 2022 Spartan Motorhome. The contact stated that while traveling at 59 MPH, the tire pressure monitoring screen indicated that one of the outer passenger's side rear tires needed service. The contact took the vehicle to National Indoor RV Centers (11280 N Solar Canyon Way, Surprise, AZ 85379) for service. In spite of the service repair, the failure remained. The manufacturer was then notified of the failure and referred him to Velocity Truck Centers - Tolleson...

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(9899 W Roosevelt St, Tolleson, AZ 853530 for assistance. In spite of the referral, the tire pressure monitoring system for the passenger's side rear outer tire remained defective. The vehicle had yet to be repaired. The failure mileage was approximately 1,800.

Filed Incident TiresNHTSA 11452779
2018 Entegra CornerstoneEngine & coolingFuel system

While driving across Florida, the "Check Engine" light and first of three DEF Head "Service Codes" on our 2018 Entegra Cornerstone 45' RV came on, indicating that our Diesel Exhaust Fluid (DEF) system had an issue. From previous social media posts from other Entegra Owners, we immediately contacted the chassis manufacturer, Spartan. They requested that we contact Cummins-Orlando, FL for a DEF Head replacement. Cummins-Orlando said they couldn't get us in for three weeks, which wasn't an option, as we were...

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traveling and couldn't wait three weeks. We contacted Cummins-Tampa, FL and Cummins-Jacksonville, FL, with both stating 2-3 weeks to get us in. By this time, the second of three DEF codes came on, so the situation was getting more dire. We finally got through to Cummins-Ocala, FL and they were able to squeeze us in the next day. The third of three DEF Codes came on during the relatively short drive to Ocala, FL, but we were able to get there before the RV went into "limp mode" which restricts your speed to 5mph!! We were extremely worried about being stranded on the busy interstate Highway in a vehicle the size of a Greyhound Bus, limping along at 5mph with 18-wheelers whizzing by at 70-75mph! This DEF Head issue has been going on for several years and doesn't seem to be getting any better, even though the manufacturer is on their 7th Generation of DEF Head technology. Luckily, Spartan had the DEF Head in-stock and was able to overnight it to Cummins-Ocala, but many others have been held up for days/weeks due to a back order on the replacement DEF Heads. I feel that a recall should be issued on all DEF Heads prior to the 7th Generation, in order to avoid the safety issues associated with being stranded on the highway with a failed DEF Head.

Filed Incident Engine · Fuel / propulsion systemNHTSA 11427332
2017 Entegra CornerstoneEngine & cooling

The contact owns a 2017 Spartan Entegra Cornerstone RV. The contact stated while starting the RV to leave a campsite, he became aware that the check engine warning light was illuminated. The contact took the vehicle to the local dealer who inspected the vehicle and diagnosed the failure as a diesel exhaust fluid (DEF) system sensor head that needed to be replaced. The dealer replaced the sensor system however, the failure recurred. The vehicle was taken back to the same dealer and the sensor was replaced again. The contact was concerned that the failure would recur. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 35,000.

Filed Incident EngineNHTSA 11426969
2020 Entegra CornerstoneEngine & cooling

Def head sensor failure causing an unsafe derate condition. The rv will only go 5mph causing me to not be able to get to a safe location. As i understand the engine and def system are functioning as they should but the malfunctioning sensor has caused the engine to shut down or derate to 5mph.

Filed Incident EngineNHTSA 11425171
2018 Entegra CornerstoneEngine & coolingFuel system

Vehicle has approximately 30,800 miles. A check engine light with error codes SPN: 3364, 1761, 3331 indicating a failure of the DEF ( diesel exhaust fluid) sensor. This results in a degrade in performance to a point of engine shutdown. Replacement parts are very hard to obtain because this error is so common.

Filed Incident Engine · Fuel / propulsion systemNHTSA 11421805

Questions about the Entegra Cornerstone

Which Entegra Cornerstone years have the most problems?

By the number of complaints owners filed with NHTSA: 2017 (6), 2018 (4), 2019 (1). Allowing for how long each has been on the road, the 2021 stands out most. Complaint counts also rise with sales, so compare years of the same model rather than different models.

Which Entegra Cornerstone years have the fewest complaints?

Among model years that have been on the road for at least three years, 2008, 2011, 2015 have the best Safety Index - the fewest complaints, crashes and recalls for their age compared with other Cornerstone years. Always check the exact vehicle's recalls by VIN before you buy.

What are the most common Entegra Cornerstone problems?

Across every model year, owners report problems with the engine & cooling (10), fuel system (5), body, doors & structure (1) most often.

How many recalls does the Entegra Cornerstone have?

NHTSA lists 37 recalls across all Entegra Cornerstone model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.

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

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