2015 Grand Design Momentum Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2015 Grand Design Momentum, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Body & structure571.4%
- Suspension228.6%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
Potential frame failure. First noticed [XXX]. Grand Design contacted, but no appointment due to "Customer Care Center" being moved. Referred to Royal RV in Middlebury, IN. Appt. set for Mid May. No concern by GD that we would be traveling 1500 miles. Visual inspection @ Royal RV suggested potential frame failure. Appt. set for June 18th for full inspection. Both Grand Design {case# XXX} and Lippert Components {case# XXX) where notified of the situation and offered opportunity to visit Royal RV while the RV was there. During the time before returning to Royal RV a YouTube video was discovered showing the same RV as ours with the exact same issues had been shared with GD on March 28th, 2018. RV returned to Royal RV XXX, 2022. Their inspection identified broken welds same area as shown on the above mentioned video. After much effort, Lippert arrived XXX 2022 to make repairs. Lippert Tech noted that delamination under bedroom slide was most likely caused by broken welds but he could not correct. Contacted Grand Design but could not schedule an appointment due to "rally appointments". Appointment set for our return in May, 2023. No concern by Grand Design on our 3000 mile round trip. RV returned to Grand Design on XXX, 2023. Very little detail on what corrective action taken other than to repeat "your frame flex" problem corrected. Much more detail on the bedroom slide issue. A section of the outside wall removed as well as the complete slide to repair broken welds. We picked up RV approx. on XXX. Reviewed Work Order #XXXXX. Again no details on the frame failure only the Flex Issue. Spoke with the Customer Care mgr. to relay our disappointment with Grand Design and Lippert to feel no responsibility for endangering lives on the highway. Out of pocket expense for us $3821.00. Our ins. company, National General, denied our claim (claim# XXX) due to their determination the failure was a mfg. defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I have developed a severe case of Frame Flex in my RV. When the RV is put on the hitch and the weight of the RV is transferred to the truck, there is a lot of flex in the upper deck of the RV. This flex is outside of the suggested tolerance of the manufacturer. This could be a result of frame failure inside the upper deck.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
the front frame of my rv is broken in the pin box area
front frame failure, yes, trailer is sagging in the front, inspected by insurance co., no warning
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .