The 2021 Forest River Sierra has 1 NHTSA recall campaign affecting an estimated 18 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 4 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
Recall campaigns
EQUIPMENT21V3780002021-05-2418 affected
Defect
Forest River, Inc. (Forest River) is recalling certain 2021 Sierra and Sandpiper Fifth Wheel and Travel Trailers. The bolts that hold the floor to the chassis were improperly tightened.
Consequence
Improperly tightened bolts could cause the trailer body to detach from the chassis, increasing the risk of a crash.
Remedy
Dealers will tighten the bolts to the chassis outriggers, free of charge. Owner notification letters were mailed June 9, 2021. Owners may contact Forest River customer service at 1-574-534-4574. Forest River's number for this recall is 03-1347.
Complaints by component
ELECTRICAL SYSTEM
1
FIRERELATED
1
1fires
SERVICE BRAKES
1
UNKNOWN OR OTHER
1
Total complaints4
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Recently I had the glass over my dining table shatter. My concern is not that it shattered, but the size of the shards.although the glass shattered only after I shut the door on the trailer. It is my understanding that per ansi z26.1 that each shard should weigh no more than 4.25g. And anything…”
“The contact owns a 2021 forest river sierra model 379flok travel trailer. The contact stated that while the travel trailer oven was in use, the heat vent on the back of the oven melted the backsplash. The travel trailer was not diagnosed nor repaired. The dealer and manufacturer were not made…”
“The contact owns a 2021 forest river sierra fifth wheel trailer. The contact stated while driving approximately 55 mph, the trailer brakes failed to engage while the brake pedal was depressed. The contact stated that the "trailer wiring fault" message was displayed. The vehicle was diagnosed and…”
“The contact owns a 2021 forest river sierra fifth wheel trailer. The contact stated while driving approximately 55 mph, the trailer brakes failed to engage while the brake pedal was depressed. The contact stated that the "trailer wiring fault" message was displayed. The vehicle was diagnosed and…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Forest River Sierra as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.