2018 RAM Promaster electrical system problems
11 owner complaints filed with NHTSA name the electrical system on the 2018 RAM Promaster — 30% of all complaints for this model year.
What owners report
“My vehicle is subject to open safety Recall 67C involving the cooling fan module and related fuse protection in the engine compartment. The recall has been open since October 2025. The manufacturer and dealer have confirmed that the remedy/parts are still not available and that there is no ETA for…”
filed Apr 26, 2026
“The contact owns a 2018 Ram Promaster 2500. The contact stated that while the vehicle was parked, it failed to start. The contact attempted to remove the key from the ignition; however, the key was stuck for several minutes before the contact was able to remove the key. No warning light was…”
filed Oct 29, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Powertrain control module may be equipped with a voltage regulator chip in the circuit…Campaign 18V524000 · Aug 9, 2018
Related service bulletins
STARTER - ENGINE
109614 · Service Bulletin/Repair Instructions · issued Jan 13, 2026CAMERA – REAR VIEW
108796 · Service Bulletin/Repair Instructions · issued Dec 4, 2025
Electrical System problems in other Promaster years
| Year | Reports | Share |
|---|---|---|
| 2023 Promaster | 23 | 27% |
| 2022 Promaster | 14 | 22% |
| 2021 Promaster | 19 | 17% |
| 2020 Promaster | 8 | 19% |
| 2019 Promaster | 5 | 8% |
| 2017 Promaster | 20 | 35% |
| 2016 Promaster | 7 | 22% |
| 2015 Promaster | 16 | 27% |
| 2014 Promaster | 19 | 27% |
Other reported problem areas on the 2018 RAM Promaster
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.