2018 RAM Promaster problems & reliability
37 owner complaints filed with NHTSA for the 2018 RAM Promaster, alongside 10 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System → | 11 | 30% |
| Engine → | 11 | 30% |
| Power Train | 7 | 19% |
| Unknown OR Other | 7 | 19% |
| Visibility/wiper | 4 | 11% |
| Service Brakes | 3 | 8% |
| Steering | 2 | 5% |
| Structure | 2 | 5% |
| Tires | 2 | 5% |
| Air Bags | 1 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident 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 repair. At this…”
Engine · filed Apr 26, 2026
“My power steering locked up and almost caused an accident. The dealer said they are having trouble with this component (corrosion in plug). I have a fleet of trucks, and I just had the same issue with a 2023 model which I also almost lost control of the vehicle. This is a defect or poor design that needs to be…”
Steering · filed Mar 18, 2026
“The contact owns a 2018 Ram Promaster 2500. The contact received notification of NHTSA Campaign Number: 25V720000 (ENGINE AND ENGINE COOLING). The vehicle was started, and there was smoke coming from the exhaust pipe. The contact was unsure if any warning lights were illuminated. The contact took the vehicle to an AAA…”
Engine and Engine Cooling · filed Feb 20, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
327 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2018 RAM Promaster. The 10 most recent:
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set SYMPTOM: one or more of the following Diagnostic Trouble Codes (DTCs)…
18-073-26 · Service Bulletin/Repair Instructions · issued Jul 22, 2026
Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S1623000028 Rev. K · Service Bulletin/Repair Instructions · issued Jun 12, 2026
Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S1623000028 REV.J · Service Bulletin/Repair Instructions · issued Jun 5, 2026
Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S1623000028 REV.I · Service Bulletin/Repair Instructions · issued May 29, 2026
Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S1623000028 REV.H · Service Bulletin/Repair Instructions · issued Apr 1, 2026
Water Pump & Chain Case Cover
109727 · Service Bulletin/Repair Instructions · issued Jan 21, 2026
Water Pump & Chain Case Cover
109724 · Service Bulletin/Repair Instructions · issued Jan 21, 2026
STARTER - ENGINE
109614 · Service Bulletin/Repair Instructions · issued Jan 13, 2026
STARTER - ENGINE
109512 · Service Bulletin/Repair Instructions · issued Jan 8, 2026
CAMERA – REAR VIEW
108796 · Service Bulletin/Repair Instructions · issued Dec 4, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2018 RAM Promaster has 10 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2018 RAM Promaster?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.