Propane Leak Can Cause a Fire – 2021-2023 Tiffin Allegro, Red 340, 2021-2022 Phaeton, Breeze, Allegro Red 360, & 2022 Bay Motorhomes

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Page 1 of 5 Recall Inspection and Repair Instructions NHTSA Recall #: 22V-511 Tiffin Motorhomes Recall #: TIF-124 Transport Canada Recall #: 2022-380 Models Involved: 2021, 2022 and 2023 Allegro Open Road, 2021, 2022 and 2023 Allegro RED 340, 2021 and 2022 Allegro RED 360, 2021 and 2022 Allegro Breeze, 2022 Allegro Bay, and 2021 and 2022 Phaeton Motorhomes, all equipped with the option for LP gas. Tools Needed: Parts Needed: Leak Test Solution Contact Manchester Tank, contact info page 4 FLAT RATE CODE & TIME ALLOWED: When filing the warranty claim for payment, please use the following flat rate codes and times. 0.25 hours if the date code is not involved – AL9862RC01, BY9862RC01, BR9862RC01, RD9862RC01, RT9862RC01, PH9862RC01 0.50 hours if the date code is involved and the leak check is ok – AL9863RC01, BY9863RC01, BR9863RC01, RD9863RC01, RT9863RC01, PH9863RC01 Defective LP valve contact Manchester Tank for work instructions and parts, 315-370-3833 Inspection Procedure: 1. Locate the LP service tank on the motorhome. The compartment door for the LP service tank is marked with a red “PROPANE” sticker. Page 2 of 5 2. If the ‘PROPANE’ sticker is unable to be located, below is a list of the floorplans involved and the location of the LPG tank on each floorplan. LPG Tank Locations Floorplan Cargo Door # PS DS TANK # Bay 38AB #4 X 4318 38BB #3 X 4318 Breeze 31 BR #2 X 5011504 33 BR #2 X 5011504 Allegro 32 FA #4 X 4318 32 SA #5 X 4318 34 PA #5 X 4318 36 LA #6 X 4318 36 UA #6 X 4318 RED 340 33 AL #1 X 4318 38 LL #1 X 4318 RED 360 33 AA #2 X 5009056 37 BA #2 X 5009056 37 PA #2 X 5009056 38 KA #2 X 5009056 Phaeton 36 SH #1 X 5009056 37 BH #1 X 5009056 40 AH #1 X 5009056 40 QBH #1 X 5009056 40 QKH #1 X 5009056 40 IH #1 X 5009056 Page 3 of 5 3. Locate the service valve on the LPG tank and verify the date code stamped on the service valve. The affected valves have manufacturing date codes between 02X21 and 02X22. The ‘X’ represents any letter between A through E, which denotes the week of the month the valve was assembled. The date code is marked on a wrench flat. Below is a key to reading the date codes marked on the wrench flat of the valve and their locations. Figures 1, 2 and 3 have the service valves marked with a red arrow. Figure 1 LPG tank style 4318 Page 4 of 5 Figure 2 LPG tank style 5009056 Figure 3 LPG tank style 5011504 Page 5 of 5 4. If the date code of the service valve does not fall between 02X21 (February 2021) and 02X22 (February 2022) the service valve is not involved in the recall and the recall can be cleared. Please file a warranty claim to Tiffin Motorhomes using the correct flat rate code and time above. 5. If the date code of the service valve falls between 02X21 (February 2021) and 02X22 (February 2022) please complete the following leak test. LPG Leak Test procedure 1. If the service valve is open and the entire propane system is pressurized, use a leak detection solution at the vale outlet connection. a. If no leaks are observed, no further action is required. Please file a warranty claim to Tiffin Motorhomes using the correct flat rate code and time above. b. If a leak is observed at this valve outlet connection and tightening the connection does not stop the leak, close the service valve, and contact Manchester Tank for time allowed, parts, and instructions. 2. If the service valve is closed, use the go/no-go gauge POL nut to determine if the service valve threads are the proper depth. See Figure 4 below. a. If the threads are the proper depth, no further action is required. Please file a warranty claim to Tiffin Motorhomes using the correct flat rate code and time above. b. If the threads are not the proper depth, securely close the service valve and contact Manchester Tank for times allowed, parts, and instructions. Figure 4 LPG go/no-go gauge POL nut Manchester Tank, (email contact is preferred): Frank Lane, frank.lane@mantank.com Bob Mangas, bob.mangas@mantank.com Jared Shurtwell, jared.shutwell@mantank.com Jennifer Mann, jennifer.mann@mantank.com Manchester Tank main office phone, 615-370-3833

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Page 1 of 2 105 2nd Street NW Red Bay, Alabama 35582 IMPORTANT SAFETY RECALL This notice applies to your vehicle, VIN: NHTSA Recall # 22V-511 Tiffin Recall # TIF-124 August 8, 2022 Possible Defective LP Service Valve Dear Tiffin Motorhome Owner or Dealer, This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Tiffin Motorhomes has decided that a defect, which relates to motor vehicle safety, exists on the following models of motorhomes: 2021, 2022 and 2023 Allegro Open Road, 2021, 2022 and 2023 Allegro RED 340, 2021 and 2022 Allegro RED 340, 2021 and 2022 Allegro Breeze, 2022 Allegro Bay, and 2021 and 2022 Phaeton Motorhomes, all equipped with the option for LP gas. Tiffin Motorhomes has become aware of the possibility that on these motorhomes, the LP gas tank may be equipped with a defective LP service valve. A leak in the connection of the LP tank installed on a motorhome could result in a fire or explosion and serious personal injury, property damage or both. Tiffin Motorhomes will have the LP service valves inspected and if they are found to be defective, they will be replaced. Please arrange to take your motorhome to a reputable service center OR dealer of your choice to have the correction completed. A list of Tiffin Motorhomes authorized dealers is available online at https://tiffinmotorhomes.com/service-center-locations . The recall inspection will take approximately 30 minutes and will be completed at no charge to you, the owner. Please be aware that additional time, up to 1 hours and 30 minutes, may be needed if the LP service valve on your unit is found to be defective and needs to be replaced. If you are using a service center that is not a Tiffin Motorhomes authorized repair facility, please make sure that they contact Tiffin Motorhomes for the required parts, instructions and time allowed for the repair. Tiffin Motorhomes will not pay over the allowed time unless the repair facility receives a prior authorization. For authorization, contact Tiffin Motorhomes at 256-356-0261 or service@tiffinmotorhomes.com . Page 2 of 2 You may be liable for any progressive damage that results from your failure to complete the recall within a reasonable time after receiving notification. If owners have paid to have this repair completed, please send a copy of the invoice, that was paid by the owner to Tiffin Motorhomes at the following address: Tiffin Motorhomes, attn: Recalls, 105 2nd Street NW, Red Bay AL 35582 or by email to service@tiffinmotorhomes.com. Please make sure the invoice notes who paid for the repair, the VIN of the motorhome and the date the repair was completed. If you do not own the vehicle that corresponds to the vehicle identification number which appears on this Recall Notification, please return the notification to the Tiffin Warranty Department with any information you can furnish that will assist us in locating the present owner. You may also send an email to recalls@tiffinmotorhomes.com. If you are unable to have the defect remedied without charge and within a reasonable time after you tender the vehicle for repair, please contact the Tiffin Warranty Department, at 1-256-356-8661, 8:00 a.m. to 3:30 p.m., Central Time. You may also wish to notify the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington DC 20590, or phone 1-888-327-4236 (TTY: 1-800-424-9153): or go to http://www.safercar.gov. Federal regulations require that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle safety. Tiffin Recall Department

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Page 1 of 2 105 2nd Street NW Red Bay, Alabama 35582 IMPORTANT SAFETY RECALL NHTSA Recall # 22V-511 TC Recall # 2022-380 Tiffin Recall # TIF-124 August 8, 2022 Possible Defective LP Service Valve Dear Tiffin Motorhome Dealer, This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Tiffin Motorhomes has decided that a defect, which relates to motor vehicle safety, exists on the following models of motorhomes: 2021, 2022 and 2023 Allegro Open Road, 2021, 2022 and 2023 Allegro RED 340, 2021 and 2022 Allegro RED 340, 2021 and 2022 Allegro Breeze, 2022 Allegro Bay, and 2021 and 2022 Phaeton Motorhomes, all equipped with the option for LP gas. Tiffin Motorhomes has become aware of the possibility that on these motorhomes, the LP gas tank may be equipped with a defective LP service valve. A leak in the connection of the LP tank installed on a motorhome could result in a fire or explosion and serious personal injury, property damage or both. Tiffin Motorhomes will have the LP service valves inspected and if they are found to be defective, they will be replaced. Owners will be notified by mail about the recall and will be instructed to take their motorhome to a reputable service center OR dealer of their choice to have this inspection and replacement, if needed, completed. The inspection of these tanks may take up to 30 minutes. If a defective valve is found, dealers or service centers will need to contact Manchester Tank for work instructions, parts and the time allowed for the repair. The average time for replacement ranges from 30 minutes to 1 hour 30 minutes depending on the situation of the specific motorhome. The contact information for Manchester Tank is listed on the work instructions. To verify a motorhome’s involvement in this recall, please visit our website, TiffinMotorhomes.com. Choose the “Dealer Login” page and click on “Vehicle Recall Lookup” and enter the complete 17-digit VIN number. No login or password is needed. To view work instructions, please click on “Flat Rate Manual” and choose “RECALLS” for Model and “RECALLS” for the Section, scroll down to the NHTSA recall number for the recall you are looking for and choose “Show Files” and then download the work instructions. Page 2 of 2 Please be reminded that it is a violation of Federal law for you to sell or lease any new Tiffin Motorhome covered by this notification until this recall has been performed on the motorhome. Substantial civil penalties apply to violations of this law. We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle safety. Tiffin Compliance Department

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-511 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Tiffin Motorhomes, Inc. Submission Date : JUL 20, 2022 NHTSA Recall No. : 22V-511 Manufacturer Recall No. : TIF-124 Manufacturer Information : Manufacturer Name : Tiffin Motorhomes, Inc. Address : 105 2nd Street NW PO Box 596 Red Bay AL 35582 Company phone : 999 Population : Number of potentially involved : 1,323 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2023 Tiffin Allegro Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : GAS Descriptive Information : Manchester Tank contacted Tiffin on 7-14-2022 with a list of sales orders that could possibly contain defective valves. Defective valves have a date code range of Feb. 2021 through Feb. 2022 stamped on the valve. Production Dates : FEB 01, 2021 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2021-2022 Tiffin Phaeton Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manchester Tank contacted Tiffin on 7-14-2022 with a list of sales orders that could possibly contain defective valves. Defective valves have a date code range of Feb. 2021 through Feb. 2022 stamped on the valve. Production Dates : FEB 01, 2021 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-511 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2021-2022 Tiffin Breeze Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Manchester Tank contacted Tiffin on 7-14-2022 with a list of sales orders that could possibly contain defective valves. Defective valves have a date code range of Feb. 2021 through Feb. 2022 stamped on the valve. Production Dates : FEB 01, 2021 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2021-2023 Tiffin Red 340 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Manchester Tank contacted Tiffin on 7-14-2022 with a list of sales orders that could possibly contain defective valves. Defective valves have a date code range of Feb. 2021 through Feb. 2022 stamped on the valve. Production Dates : FEB 01, 2021 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2022-2022 Tiffin Bay Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Manchester Tank contacted Tiffin on 7-14-2022 with a list of sales orders that could possibly contain defective valves. Defective valves have a date code range of Feb. 2021 through Feb. 2022 stamped on the valve. Production Dates : JAN 25, 2022 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 6 : 2021-2022 Tiffin Red 360 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Manchester Tank contacted Tiffin on 7-14-2022 with a list of sales orders that could possibly contain defective valves. Defective valves have a date code range of Feb. 2021 through Feb. 2022 stamped on the valve. Production Dates : FEB 01, 2021 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-511 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : A small number of RegO service valves on recreational vehicle tanks have some short threads in the POL (Prest–O Lite) outlets. The short threads do not allow the POL connector to fully seat. This may result in a leak at the connection. Potentially affected valves would have been installed in a limited number of Manchester Tank branded RV tanks dated 2021 and 2022. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : THE DEFECT COULD RESULT IN A FIRE OR EXPLOSION AND SERIOUS PERSONAL INJURY, PROPERTY DAMAGE, OR BOTH. Description of the Cause : The thread depth of the POL outlet is less than specification, which could result in a leak of propane. Identification of Any Warning that can Occur : None. Involved Components : Component Name 1 : Service Valve Component Description : valve Model 901C3 and 901C5 Component Part Number : V20373 (Manchester #) Supplier Identification : Component Manufacturer Name : RegO Address : 100 RegO Drive Elon North Carolina 27244 Country : United States Chronology : Manchester Tank contacted Tiffin on 7/14/22 with a list of sales orders that could possibly contain defective service valves made by RegO. Manchester Tank was notified by RegO that a small number of RegO service valves that Manchester Tank installs on recreational vehicle LP tanks have some short threads in the POL outlets. The short threads do not allow the POL connector to fully seat. This may result in a leak at the Part 573 Safety Recall Report 22V-511 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 connection. The included safety bulletin from RegO outlined the issue and details how to check for the issue and how to remedy the issue. Description of Remedy : Description of Remedy Program : Tiffin will notify the affected population and have the valves inspected to determine if the defect exists. Any defective valves will be replaced at no charge to the owner. If owner has paid for any repairs related to this defect, they can submit their invoice to Tiffin Motorhomes for reimbursement. How Remedy Component Differs from Recalled Component : Remedied valve will have stamped date code on valve later than 02/2022 and POL (Prest-O-Lite) nut will have no visible threads when connected. Identify How/When Recall Condition was Corrected in Production : All valves in inventory and manufacturing WIP coaches were checked as per RegO field safety advisory. All finished coaches waiting to shipped were also checked. In production, there was an extra LP leak test added to ensure proper connection and no leakage. Recall Schedule : Description of Recall Schedule : Owners and dealers will be notified of the recall repair and advised that the repair will be performed at no charge to the customer. Planned Dealer Notification Date : SEP 16, 2022 – SEP 23, 2022 Planned Owner Notification Date : SEP 16, 2022 – SEP 23, 2022 * NR – Not Reported

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