The Lemon IndexC0020 is a chassis code from the standard list, but carmakers often use these codes their own way, so its exact meaning depends on the make. Full C0020 page
269 owner complaints · the #1 code Ram pickup owners name · 43% of Ram pickup complaints that name a code (every car: 1.8%)
Middle of 32,000 miles · most between 19,000 and 60,000 (8 owners gave it)
Ram pickup owners named C0020 in 269 complaints to the U.S. government (NHTSA), most often on the 2018, 2017 and 2015 model years, at a middle of 32,000 miles. The part they name most is the ABS module, pump or accumulator (177 complaints). Complaints are owner reports, not proof of a defect.
Ram pickup model years that report C0020
Owner complaints naming C0020, by model year. Raw counts: years that sold more get more complaints, so this is each model year's record, not a failure rate.
Mileage when it happened
32,000 miles is the middle of what 8 owners entered. Half were between 19,000 and 60,000 miles.
The mileage on the complaint form, when the owner gave one.
What owners say caused it or fixed it
The most-named part is the ABS module, pump or accumulator, in 177 of the 269 complaints (66%). 74 of those mention it being replaced or repaired, and 15 say the problem came back afterwards. Next: engine computer (ECM / PCM) (7) and engine software (a reflash) (3).
- ABS module, pump or brake accumulator177 complaints74 mention a repair or replacement, 15 of them say the problem came back · what Ram pickup owners paid
- Engine computer (ECM / PCM)7 complaints5 mention a repair or replacement, 2 of them say the problem came back · what Ram pickup owners paid
- Software update (reflash)3 complaints2 mention a repair or replacement
60 complaints mention a recall and 38 mention a warranty.
Counted from the owners' own words: a part counts when a sentence names it with a cause or repair word. What owners wrote, not a diagnosis. A shop should confirm the cause before replacing parts.
Symptoms owners describe with C0020
3% of these complaints say the check engine light came on.
- Brakes or ABS act up99%265 of 269 complaints
- Warning lights and electrical faults48%128 of 269 complaints
- Stalls or shuts off1%4 of 269 complaints
- Transmission slips or shifts hard1%3 of 269 complaints
Share of the complaints naming C0020 whose text also describes each problem. A complaint can describe more than one.
Codes owners report with it
C2200 4
Other codes named in the same Ram pickup complaints, and in how many.
Repair costs
- ABS module replacement$1,0196 bills · middle bill
Repair bills owners named in these 269 complaints (6 in all). Owner reports, not a quote: costs vary by shop and region.
Ram pickup ECM (engine computer) replacement cost
Recalls on these Ram pickup years
- Brakes · 2018 · issued 2024
The hydraulic control unit (HCU) may fail, which can cause the anti-lock brake (ABS), electronic stability control (ESC), and traction control systems to fail. NHTSA 24V896000 - Parking brake · 2013 · issued 2013
The parking brake cable equalizer was set incorrectly and may not hold the vehicle on a 20% grade. NHTSA 13V128000
2 recalls for the same systems (brakes) on the Ram pickup model years above. A recall for the same system isn't proof it's behind C0020. Recall work is free at any dealer: check a VIN at nhtsa.gov/recalls or with our VIN check.
Keep going
- C0020: meaning, causes and every car that reports it
- Ram pickup reliability by year
- 2018 Ram pickup problems and recalls
Other codes Ram pickup owners report
The details
How we count
We read every owner complaint in the NHTSA file whose text names this trouble code, and count the ones filed about this model (matched by the make, model and model year on the complaint). Mileage is what the owner entered on the form.
Parts: a complaint counts for a part when one of the owner's own sentences names that part together with a cause word (failed, bad, diagnosed, caused by, leaking ...) or a repair word (replaced, repaired, new, reprogrammed ...). "Came back" means the same complaint also says the problem returned or the repair didn't fix it. These are counts of what owners wrote, not a diagnosis, and one complaint can name several parts.
Complaints are reports, not proof of a defect, and most owners never file one. Popular models get more complaints, so the counts are not a failure rate. The code meaning is the standard SAE J2012 definition in our own words, or the carmaker's meaning where we verified it for that make.
What C0020 means
C0020 is in the standard chassis code range, but carmakers often define chassis codes their own way, so the same code can point to different problems on different brands. We haven't verified its meaning for Ram yet. A dealer or a scanner with the maker's software can tell you exactly.
Check the complaints yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11761938, 11752606, 11744072, 11711482, 11711237, 11703901, 11702543, 11700912, 11671911, 11643994, 11627646, 11627365 and 257 more.
Quick answers
Which Ram pickup years have the most C0020 complaints?
In complaints to NHTSA, owners of the 2018 (213), 2017 (51), 2015 (2) Ram pickup named C0020 most (269 complaints in all, 2013–2018). Raw counts, not a failure rate.
What fixes C0020 on a Ram pickup?
Owners most often name the ABS module, pump or accumulator (177 of 269 complaints), then engine computer (ECM / PCM) and engine software (a reflash). That's what owners wrote, not a diagnosis: have a shop confirm the cause with a scan and tests before replacing parts.
At what mileage does C0020 show up on a Ram pickup?
Owners who gave their mileage reported a middle of 32,000 miles; half were between 19,000 and 60,000 (8 owners).
Sources: NHTSA owner complaints that name C0020 on the Ram pickup, counted by The Lemon Index; NHTSA recalls; repair bills owners named. Meanings: SAE J2012 in our own words. Owner reports, not a diagnosis or repair advice for your car.