2023 RAM Promaster electrical system problems
23 owner complaints filed with NHTSA name the electrical system on the 2023 RAM Promaster — 27% of all complaints for this model year.
What owners report
“Sometimes while driving I experienced my powered steering cut out while taking a ramp on/off of the highway, and sometimes when i was trying to park and back up into a parking space while steering at the same time. When the power steering cut out I got lights for "Service Power Steering", "Service…”
filed Aug 13, 2026
“Factory-installed Onan generator repeatedly throws fault codes causing complete air conditioning system shutdown. Defect present since early ownership. Three failed repair attempts at authorized Thor Motor Coach dealer La Mesa RV. Generator has never reliably held a load. Creates dangerous…”
filed Aug 7, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Radio/ETM is Adding Approximately 27mA Draw to Vehicle When in Logistics Mode
S268A000014 · Service Bulletin/Repair Instructions · issued Jun 17, 2026New Key Will Not Program, 0x22 Scan Tool Error
S2408000018 REV.B · Service Bulletin/Repair Instructions · issued May 29, 2026SENSOR – KNOCK
111834 · Service Bulletin/Repair Instructions · issued May 13, 2026SENSOR – KNOCK
111833 · Service Bulletin/Repair Instructions · issued May 13, 2026Instrument Panel Cluster (IPC) Flicker Turn By Turn The customer may experience flickering on their Instrument Panel Cluster (IPC) when the turn-by-turn feature is enabled. This issue occurs when using Google Maps for…
08-207-26 · Service Bulletin/Repair Instructions · issued May 6, 2026
Electrical System problems in other Promaster years
| Year | Reports | Share |
|---|---|---|
| 2022 Promaster | 14 | 22% |
| 2021 Promaster | 19 | 17% |
| 2020 Promaster | 8 | 19% |
| 2019 Promaster | 5 | 8% |
| 2018 Promaster | 11 | 30% |
| 2017 Promaster | 20 | 35% |
| 2016 Promaster | 7 | 22% |
| 2015 Promaster | 16 | 27% |
| 2014 Promaster | 19 | 27% |
Other reported problem areas on the 2023 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.