AutoStatsIQ
Data through Oct 2026
Model year

2018 Thor Motor Coach Gemini

Other, diesel, 4x2, built in Germany. Owner complaints on file from Aug 26, 2020 to Sep 1, 2021.

Recalls (2)Complaints (2)Investigations (0)Bulletins (6)
Recall campaigns covering this model year2111k vehicles or units across those campaigns
Owner complaints2Close to the median 2018 other
Severity index0.02018 others average 4.1
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2018 Thor Motor Coach Gemini peaked in 2020, with 1 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.250.50.75120201202120222023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

50% of complaints about the 2018 Thor Motor Coach Gemini name stability and traction control

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Stability and traction control
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

2 recall campaigns cover the 2018 Thor Motor Coach Gemini

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2018 Thor Motor Coach Gemini
CampaignFiledSubjectComponentVehiclesRemedy
18V-415Jun 19, 2018Water can enter the tow modules and corrode the wiring causing issues such as rapidly flashing turn signals, loss of instrument panel display, an…Electrical system158Repair or modification
17V-758Nov 22, 2017See a list of the affected trailer models at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V758-5764.pdfEquipment110,400Part replacement
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2018 Thor Motor Coach Gemini

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

2 complaints on file, page 1 of 1.

  1. Filed Sep 1, 2021Failure Apr 14, 2021Stormville, NYUnknown or other

    There is a recall for my vehicle it is notice # 2021070007 despite your website stating there is none. My problem with your recall is that it only applies to the rear wheel sensors on the Mercedes sprinter chassis. I've had both front and rear wheel sensor failures on my sprinter both failures coming with less 5000 miles on my sprinter which the Mercedes dealership refused to repair. I don't why NHTSA would limit the recall to just the rear sensors when the front sensors are exactly the same as the rear sensors and are failing also. These are dangerous failures which disable the safety systems on the vehicles.

    NHTSA complaint 11431306
  2. Filed Aug 26, 2020Failure Aug 17, 20208,000 milesStormville, NYElectronic stability control (esc)

    THE REAR SPEED SENSOR ON MY 2018 THOR GEMINI RV WITH THE MERCEDES BENZ 3500 SPRINTER CHASSIS WENT BAD KNOCKING OUT MY ABS, STABILITY CONTROL AND CRUISE CONTROL ON A LONG TRIP. I WAS ON THE HIGHWAY DOING A STEADY 60-65 MPH. MY SPRINTER ONLY HAS 8,000 MILES ON IT. I'VE READ THIS IS A RECURRING PROBLEM ON THESE VEHICLES SO I THOUGHT I WOULD REPORT IT.

    NHTSA complaint 11351299
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
All investigations
Service bulletins

6 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

  • RC000218SAOwner Mar 25, 2021 · Service Bulletin/Repair Instructions
    On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement of t…
  • RC000218SADealer Mar 25, 2021 · Service Bulletin/Repair Instructions
    us. On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement…
  • RC000210SAOwner Jan 18, 2021 · Service Bulletin/Repair Instructions
    Model/Model Year to Add: 2017 Chateau 2017-2018 Chateau Citation 2017 Four Winds 2017-2019 Gemini 2017-2019 Quantum 2017-2019 Four Winds Siesta 2017-2019 Synergy 2018 Compass 2018 Freedom Elite 2021 Sanctuary 2021Tranquility PLEASE NOTE- Due to being unawar…
  • RC000210SADealer Jan 18, 2021 · Service Bulletin/Repair Instructions
    It has been determined that on certain Mercedes-Benz Sprinter vehicles, the hydraulic power steering return line hoses might detach at their connection points under certain operating conditions, which could cause hydraulic fluid to leak, resulting in the …
  • LTR 120519 Dec 5, 2019 · Service Bulletin/Repair Instructions
    This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.
  • LTR 110317 Nov 3, 2017 · Service Bulletin/Repair Instructions
    This letter stated that there was one (1) Service Notification issued for the month of October, 2017.
Source: NHTSA manufacturer communications files.
About service bulletins