"How reliable is the 2020 Grand Design Momentum?"

"Based on 44 NHTSA complaints, the 2020 Grand Design Momentum has a median complaint mileage of 10000 miles. The most common issue is UNKNOWN OR OTHER."

"What are common problems with the 2020 Grand Design Momentum?"

"The most frequently reported component in NHTSA complaints for the 2020 Grand Design Momentum is UNKNOWN OR OTHER, accounting for a significant portion of the 44 total complaints filed."

2020 Grand Design Momentum: Reliability Data

Source: NHTSA — 44 complaints

Total Complaints

10,000mi

Median Mileage

UNKNOWN OR OTHER

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

10,000 25th Percentile

10,000 Median Mileage

11,500 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

UNKNOWN OR OTHER

STRUCTURE:BODY

SUSPENSION

STRUCTURE

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

SERVICE BRAKES

EQUIPMENT:MECHANICAL:SPARE TIRE MOUNT/RACK

SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:HANGER,BRACKET

ELECTRICAL SYSTEM

EQUIPMENT:RECREATIONAL VEHICLE/TRAILER

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"The contact owns a 2020 Grand Design Recreational Momentum. The contact stated that the floor was started buckling and there were bubbles on the flooring of the trailer. The contact stated that one of the bubble was near the front bedroom towards the bathroom, and the other bubble was towards the ha..."

"We used the gas water heater on our Rig. Come to find out, it blew the cover off the water heater, burned the wires and melted the case. We are very lucky our rig did not catch fire."

"The front area where the pin box connects to the truck has multiple welds are breaking on the structural frame causing these trailers over flex while driving down road. There has been multiple cases of the front deflection being out of spec on multiple trailer. With these welds broken it can cause t..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

Where Are Complaints Coming From?

Top states by complaint count.

AZ: 11 SD: 5 WA: 5 CA: 4 FL: 2 MN: 2 CO: 2 MO: 2 WI: 2 NY: 2

Grand Design Momentum — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
2019	27	100	UNKNOWN OR OTHER	0
2021	91	8,000	UNKNOWN OR OTHER	1
2022	59	700	UNKNOWN OR OTHER	0
2023	37	-	STRUCTURE:BODY	0

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28