TSB: TIFFIN ALLEGRO BREEZE, ALLEGRO BUS, PHAETON, ZEPHYR (2016-2023)

Bulletin CSA-036 - April 19, 2024

Bulletin Details

Bulletin IDCSA-036
ManufacturerTIFFIN
ModelsALLEGRO BREEZE, ALLEGRO BUS, PHAETON, ZEPHYR
Model Years2016-2023
Date IssuedApril 19, 2024
Date Added to NHTSAApril 30, 2024
ComponentENGINE AND ENGINE COOLING
Vehicles Affected20 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls, they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Faulty DEF sensors that due to shortage were not replaced. Instead engine software was temporarily modified to account for continued operation with a faulty sensor until replacement sensors were available. This campaign will install an en

Affected Vehicles

MakeModelYearComponent
TIFFIN PHAETON 2023 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BREEZE 2022 060000 ENGINE AND ENGINE COOLING
TIFFIN PHAETON 2022 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BREEZE 2021 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BUS 2021 060000 ENGINE AND ENGINE COOLING
TIFFIN PHAETON 2021 060000 ENGINE AND ENGINE COOLING
TIFFIN ZEPHYR 2021 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BREEZE 2020 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BUS 2020 060000 ENGINE AND ENGINE COOLING
TIFFIN PHAETON 2020 060000 ENGINE AND ENGINE COOLING
TIFFIN ZEPHYR 2020 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BUS 2019 060000 ENGINE AND ENGINE COOLING
TIFFIN PHAETON 2019 060000 ENGINE AND ENGINE COOLING
TIFFIN ZEPHYR 2019 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BUS 2018 060000 ENGINE AND ENGINE COOLING
TIFFIN PHAETON 2018 060000 ENGINE AND ENGINE COOLING
TIFFIN ZEPHYR 2018 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BUS 2017 060000 ENGINE AND ENGINE COOLING
TIFFIN PHAETON 2017 060000 ENGINE AND ENGINE COOLING
TIFFIN ALLEGRO BUS 2016 060000 ENGINE AND ENGINE COOLING

Related TIFFIN Recalls

CampaignModelYearComponentSummary
OPEN TRAIL 2027 EQUIPMENT:OTHER:LABELS Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2026-2027 Open Trail, W...
OPEN TRAIL 2026 EQUIPMENT:OTHER:LABELS Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2026-2027 Open Trail, W...
WAYFARER 2027 EQUIPMENT:OTHER:LABELS Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2026-2027 Open Trail, W...
WAYFARER 2026 EQUIPMENT:OTHER:LABELS Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2026-2027 Open Trail, W...
MIDAS 2026 EQUIPMENT:OTHER:LABELS Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2026-2027 Open Trail, W...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized TIFFIN dealer. Bring this bulletin ID (CSA-036) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage, manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix, the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.