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 larger is a sign that the glass was not tempered properly. I reached out to Forest River who reached out to the Lippert the manufacturer. The are claiming the glass is not covered. But they did not address the tempering of the glass. I still have the glass and have photos of the glass and photos of of some shards and their weight.. Please look into this.
The worst 2021 Forest River Sierra problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Brakes1
- Electrical1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes1
- Electrical1
Recalls 1
Equipment: recreational vehicle/trailer
- What is wrong
- 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.
- Risk
- 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.
Recall number 21V378000 · Recall details
Technical service bulletins for the 2021 Forest River Sierra 5
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Technical Document of how to diag
- Progressive Dynamics model PD1610 Power Inverter with error code(s) "E-8" and/or "E-9". This is due to an...
- As per Lippert Components Technical Service Bulletin 11-004-21. The slide room actuator was assembled...
- It was discovered that the manufacturing plant did not cut a stress relief line in the upper deck Driver...
- The Federal Placard indicates an incorrect tire size of ST235/85R16/F whereas the correct tire size and...
What 2021 Forest River Sierra owners say
Most recent owner complaints, unedited.
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 aware of the failure.
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 repaired. The manufacturer was informed of failure and was awaiting a response.
Compare the 2021 Forest River Sierra
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Questions about the 2021 Forest River Sierra
Is the 2021 Forest River Sierra reliable?
Owners have filed 3 complaints about the 2021 Forest River Sierra, 1.5 times a typical Sierra model year.
What is the most common problem with the 2021 Forest River Sierra?
Brakes, with 1 complaint. Next is electrical (1).
How many recalls does the 2021 Forest River Sierra have?
1 recall, covering equipment.
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