The 2020 Tiffin Bus has 3 NHTSA recall campaigns affecting an estimated 3,849 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 1 complaint with NHTSA, most often about the engine. Last updated July 5, 2026.
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2017-2021 Bus and Phaeton vehicles. The sealing washer may not seat correctly in the pilot bore, allowing the high pressure fuel rail assembly to leak.
Consequence
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
Tiffin will work with Cummins to inspect the rail threads , and replace the rail and fuel lines if damage is found, free of charge. Owner notification letters were mailed August 11, 2021. Owners may contact Tiffin customer service at 1-256-356-8661.
STEERING20V5340002020-09-028 affected
Defect
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2020 Bus and Phaeton motorhomes. The steering pinch bolts may not have been properly tightened.
Consequence
A loose steering pinch bolt can result in a loss of steering control, increasing the risk of a crash.
Remedy
Tiffin will notify owners, and dealers will tighten the steering bolts to specification, free of charge. The recall began August 27, 2020. Owners may contact Tiffin customer service at 1-256-356-8661.
VISIBILITY/WIPER20V4330002020-07-28643 affected
Defect
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2019-2020 Tiffin Bus and 2018-2020 Zephyr motorhomes. The windshield wipers may not work due to the control module being improperly wired.
Consequence
The wipers may stop working during inclement weather, causing limited visibility, increasing the risk of a crash.
Remedy
Tiffin will notify owners, and dealers will inspect the control module, correcting the wiring as needed, free of charge. The recall began August 13, 2020. Owners may contact Tiffin customer service at 1-256-356-8661.
Complaints by component
ENGINE
1
Total complaints1
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Def "head" sensor failure resulting in power reduction to 5%. Due to faulty def head sensors the vehicle will experience power loss dropping to 5% load. These sensors do nothing but measure def fluid level and temperature in it's tank. Def continues to be supplied to the exhaust meeting all epa…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2020 Tiffin Bus as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.