The Lemon Index
202020221st generation
About average · most complaints: lane assist
68 owner complaints, first 3 years 24 mpg combined, EPA
Similar cars, same year
2021 Chevrolet Express 172021 Ford E-Series 512021 Ford Transit 12
Lemon Index: 100 = the average car, lower is better.
What breaks most on the 2021 Ram ProMaster
- Backup camera17 complaints
Specific parts named in the 119 owner complaints filed with NHTSA for the 2021 Ram ProMaster (all dates). Miles = the odometer owners typed in (middle half); cost = the repair bills owners wrote in those same complaints, in U.S. dollars. Owners' reports, not confirmed defects.
When problems show up
Only 13 complaints listed a mileage: too few to say when problems show up.
Questions to ask the seller
- Were recalls 25V876000 (equipment adaptive/mobility), 25V720000 (engine) and 25V552000 (back over prevention) done? It has 8 recalls in all. Ask for the dealer printout, or check the VIN.
- Do the lane-keeping warnings work without false alerts?
- Do all the lights, screens and power features work? Has the battery, alternator or any wiring been replaced?
- Do the brakes feel even, with no ABS or brake warning light? When were the pads and brake fluid last done?
- Ram sent dealers 195 repair notes for this car. Was this one done: “Battery Drain Concern, Dual USB Port Normal Operational Draw, Extended Illumination Or…”?
From this year's own recalls, top problems, top repair bills and Ram's repair notes. Recall repairs are free at any dealer.
How serious. Out of all 68 owner complaints filed so far (every year since it was sold, not just the first 3), owners reported:
“Average car” = what the same number of complaints would include at the rate across every model year we track. Owners report these themselves; NHTSA doesn't confirm the cause.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
Check engine light on? Look up any code →
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 3K to 34K miles (5K to 55K km) on the car (13 of all 68 complaints filed so far listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
In owners' words
Since brand new, blind spot monitoring system would turn itself off repeatedly after being turned on. I cannot replicate how or why it occurs and it has happened at various highway and lower speeds.
2021 Ram ProMaster owner · NHTSA complaint 11443981
More owner reports
Blind Spot System constantly disables while driving under varied circumstances.
NHTSA complaint 11468203
When we started the engine, the awning deployed and almost injured one of us. We have already supposedly had this problem repaired due to a recall. Obviously it is still a danger to ourselves and others.
NHTSA complaint 11598417
Fixes owners look up most.
From 200 YouTube videos · 7.4M views · 2014–2025 Ram ProMaster
Most-watched topics
- Windows, doors & mirrors231K views
2014-2016 Ram Promaster outside mirror bulb replacementMotorCity Mechanic · 120K views · 5 videos - Heat, A/C & blend door154K views
Replace the AC and Radiator Fans on a 2014-2018 Dodge RAM 2500 PromasterHow to Automotive · 63K views · 6 videos - Infotainment, battery & electrical132K views
Ram promaster 2016-2022 radio stop working rear camera not working Easy fixMechanic 3-D · 34K views · 8 videos - No-start: theft light, key & ignition115K views
2014 RAM promaster 2500 won’t start and stuck keyRPMgarage · 99K views · 3 videos
Show 4 more
- Gauges, lights & wiring89K views
2015 Ram ProMaster | Water in Fuel Warning LightMopar · 79K views · 2 videos - Brakes & ABS42K views
2014-2023 Ram ProMaster Brake Light Bulb ReplacementHomeowner Repair · 35K views · 2 videos - Timing chain & engine27K views
Step by Step Guide: Replace Your Van Mirror: Ram ProMaster 2018 - PresentKorey Kelly - OffGrid Travel · 18K views · 2 videos - Transmission & shifter24K views
2019 Promaster P0731 code and Transmission Stuck in limp modeDallas Auto Diag · 24K views
Before you buy, watch
2014 Ram Promaster Commercial / Conversion Van Start Up, Test Drive, and In Depth ReviewSaabkyle04 · 485K views
WHAT A WEIRD CAR! 2024 RAM PROMASTER ReviewTheStraightPipes · 274K views
2014 RAM ProMaster Commercial Cargo Van Review and Road TestAuto Buyers Guide | Alex on Autos · 226K viewsViews show how many people looked up each fix, not how often it breaks. Videos belong to their creators; we link to them. The 2021 is the same generation.
Costs are the middle (median) of the dollar amounts people say out loud in these videos, so one wild number can't swing it. They aren't verified bills or sales; real prices depend on year, miles, condition and where you live. Tap Hear it to jump to the moment.
Problems Ram told dealers about
Ram sent dealers 195 repair notes for this car. The ones about its biggest problems:
- Battery Drain Concern, Dual USB Port Normal Operational Draw, Extended Illumination Or…
- No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
- MODULE, Body Controller (BCM) Do not replace the BCM for a lighting issue on Amazon vehicles
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Recalls 8
- Equipment adaptive/mobility · recall issued 2025 New: most likely still open
Please refer to Rollx's recall report for specific model year information.
- Engine · recall issued 2025
The electrical circuit for the radiator fan may overheat.
- Back over prevention · recall issued 2025
Cracks in the microprocessor may cause the vehicle's rearview camera image not to display properly.
Show all 8 recalls
- Body structure · recall issued 2024
The vehicles are missing a side door beam, and the tire placard contains incorrect seating capacity information.
- Stability control · recall issued 2024
An insecure ground connection may cause the electronic stability control (ESC) to be inoperative.
- Electrical · recall issued 2024
The wiring harness may have a poor connection, which can cause the left taillight and left turn signal to become inoperative.
- Transmission & drivetrain · recall issued 2023
The park pawl may not fully engage the park gear due to debris inside the transmission.
- Seat belts · recall issued 2021
The seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Canada? See recalls at Transport Canada
Safety
Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| Ram ProMaster VAN FWD | not rated | not rated | not rated | not rated |
| Ram ProMaster City VAN FWD | not rated | not rated | not rated | not rated |
Fuel cost and engines
About $2,500 (USD) a year in fuel (EPA estimate at U.S. prices, 15,000 miles or 24,000 km a year). Engines: 2.4L 4-cyl.
Every Ram ProMaster year. 2021 is highlighted. Lower is better.
Newest year first. Red = worse than average, gray = about average, too new (2023+: a partial score, marked “partial”) or too few complaints to score. #1, #2… = that year's YouTube rank among the 9 Ram ProMaster years with enough videos (#1 = the year owners and reviewers talk about most positively). It is not a reliability rank.
Embed this chart
Put this chart on your site, blog or forum. Free, with the credit line built in; the 2021 bar is highlighted.
<iframe src="https://lemonindex.com/embed/cars/ram-promaster/?y=2021" title="Ram ProMaster reliability by model year (The Lemon Index)" width="100%" height="422" style="border:0;max-width:720px" loading="lazy"></iframe><p style="font-size:13px;margin:4px 0 0">Data: <a href="https://lemonindex.com/cars/ram-promaster/2021/">Lemon Index</a> (2021 Ram ProMaster reliability)</p>Quick answers
Is the 2021 Ram ProMaster reliable?
About average by government complaints. It drew a bit more than the average car's complaints filed with NHTSA in its first 3 years, per car sold (Lemon Index 111; 100 is average, lower is better). The Ram ProMaster year with the fewest complaints per car sold is 2020.
What are the most common 2021 Ram ProMaster problems?
In owner complaints to the government, the parts named most are lane assist (21%), electrical (13%) and brakes (12%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2021 Ram ProMaster have?
8 safety recalls (latest: equipment adaptive/mobility). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2021 Ram ProMaster get?
24 mpg combined, depending on the engine (EPA estimate).
Does the 2021 Ram ProMaster have transmission problems?
Transmission and drivetrain issues make up 10% of its owner complaints.
How much does the 2021 Ram ProMaster cost in fuel a year?
About $2,500 a year, by the EPA's current estimate.
What engines does the 2021 Ram ProMaster have?
2.4L 4-cyl.
What Ram ProMaster year is better than the 2021?
Nearby, the 2020 drew fewer owner complaints per car sold (about a third as many complaints as the average car).
The Lemon Index counts owner complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model years (100 = average, lower is better). It measures complaints, not crash safety. A complaint is an owner's report, not a confirmed defect. How it works