2021 Tiffin Wayfarer Technical Service Bulletins

16 technical service bulletins (TSBs) are on record for the 2021 Tiffin Wayfarer. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11026012Nov 14, 2025Electrical system, Engine. Tiffin received the following from Mercedes-Benz. Tiffin, in turn sent Mercedes-Benz's notification along with a notification from us to the customers M/B told us were involved: Mercedes-Benz, the manufacturer of Mercedes-Benz vans, has determined that on certain Model Year 2019-2021 Sprinter vehicles, the software of the Select Catalyst Reduction control unit does not correspond to the current series production…
• 11019877Jun 11, 2025Engine, Engine cooling. From Mercedes-Benz: Mercedes=Benz is extending the coverage of the exhaust gas recirculation (EGR) valve on vehicle from the vehicle's basic warranty of 5 years/100,000 miles to 15 years/150,000 miles (whichever occurs first) and applies to the vehicle regardless of ownership.
• 11019966Jun 9, 2025Exterior lighting. Stopped using the lights we had been using due to expense. Replaced with these, but these new lights have to be wired in instead of just clicking in. These are the instructions to wire in.
• 10240357Jul 6, 2023Electrical system. On certain Sprinter vehicles, the fuse layout of the interior heating ventilation and air conditioning (HVAC) blower motor might not meet the requirements for prolonged operation at the highest blower setting. The interior blower motor circuit may be inadequate, which can allow the wiring harness to overload. Consequently, a risk of fire during operation and a risk of injury cannot be ruled out.
• 10235507Apr 13, 2023Visibility (wipers, defrost, mirrors), Electrical system. On certain Sprinter vehicles, the fuse layout of the interior heating ventilation and air conditioning (HVAC) blower motor might not meet the requirements for prolonged operation at the highest blower setting. The interior blower motor circuit may be inadequate, which can allow the wiring harness to overheat. Consequently, a risk of fire during operation and a risk of injury cannot be ruled out.
• 10232211Feb 16, 2023Transmission and drivetrain. Mercedes-Benz AG, the manufacturer of Mercedes-Benz Sprinter vans, has determined that a defect, which relates to motor vehicle safety, exists in certain Model Year 2019-2022 Mercedes-Benz Sprinter vehicles. a component of the vehicle's park lock system might fatigue, which can cause the parking pawl not to engage and result in a vehicle rollaway. This may increase the risk of a crash.
• 10230955Jan 5, 2023Brakes. Mercedes-Benz Safety Recall #22V-796 A component of the vehicle's park lock system might fatigue, which can cause the parking pawl not to engage and result in a vehicle rollaway. This may increase the risk of a crash.
• 10225836Oct 17, 2022Equipment. Customer Service Advisory was sent regarding Mercedes Benz Recall # 22V360, The communication module's SIM card could become disabled and prevent a connection with a mobile phone network. In this case, the digital owner's manual as well as the automatic eCall function would not be available, which could preclude or delay the arrival of emergency responders. This could increase the risk of an injury following an…
• 10227505Oct 4, 2022Equipment. Checking of wheel liners for proper securement and verification they are not loose, missing screws, or misaligned.
• 10216861Jul 18, 2022Equipment, Engine cooling, Transmission and drivetrain. Mercedes-Benz has initiated a Recall Campaign for Model Year 2020 Sprinter vehicles to update the Engine Control Unit (ECU) software and Transmission Control Unit (TCU) software in these vehicles. To ensure your vehicle is in compliance with emissions regulations and is covered by the full protection of the emission warranty provisions, it is recommended that you have your vehicle serviced as soon as possible…
• 10216855Jul 18, 2022Equipment, Engine cooling, Transmission and drivetrain. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Sprinter vehicles, the Engine Control Unit (ECU) software, Transmission Control Unit (TCU) software and Dosing Control Unit (DCU) software does not correspond to current series production specifications. An authorized Mercedes-Benz Sprinter dealer will update the Engine Control Unit (ECU) software, Transmission…
• 10216847Jul 13, 2022Equipment, Other or unknown. MBAG has determined that on certain Mercedes-Benz Sprinter vehicles, the communication module's SIM card might become disabled and prevent a connection with a mobile phone network. In this case, the manual as well as the automatic eCall function would not be available, which could preclude or delay the arrival of emergency responders. This might increase the risk of an injury following an emergency event.
• 10215324Jun 21, 2022Visibility (wipers, defrost, mirrors). Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz Sprinter vans, has determined that on certain Sprinter vehicles, the display function of the rearview camera might be impaired. In some instances the rearview image might not be displayed in the central display after engaging the reverse gear. Instead, the central display would continue to display the existing screen image (e.g.
• 10213099May 4, 2022Air bags, Back-over prevention (rear camera). Mercedes-Benz's NHTSA #21V-055 recall for "Updating "eCall" Software.
• 10208783Feb 21, 2022Electronic stability control, Brakes. MBAG was notified of customer complaints claiming a van had "rolled away" after the driver had selected the Park ("P") gear position and P was displayed to the driver in the instrument cluster. MBAG confirmed that if the vehicle is not properly secured in accordance with the parking instructions in the vehicle Operator's Manual, in particular by always engaging the parking brake after shifting to P, the vehicle…
• 10202139Sep 23, 2021Electrical system. Blocked Air Return - It has come to our attention that some 2020, 2021 and 2022 Wayfarer Motorhomes have an air return that is blocked by a wood panel. If the air return vent is blocked this could cause the furnace to not operate properly which would cause difficulty in heating the motorhome.

← All problems reported for the 2021 Tiffin Wayfarer