The Lemon IndexC1252 is a manufacturer-specific code, so its exact meaning depends on the make. Full C1252 page
17 owner complaints · the #3 code Toyota Prius owners name · 6% of Toyota Prius complaints that name a code (every car: 0.3%)
2008–2015 Toyota Prius · most: 2012 (6), 2013 (5), 2014 (2)
Toyota Prius owners named C1252 in 17 complaints to the U.S. government (NHTSA), most often on the 2012, 2013 and 2014 model years. The part they name most is the ABS module, pump or accumulator (10 complaints). Complaints are owner reports, not proof of a defect.
Toyota Prius model years that report C1252
Owner complaints naming C1252, by model year. Raw counts: years that sold more get more complaints, so this is each model year's record, not a failure rate.
What owners say caused it or fixed it
The most-named part is the ABS module, pump or accumulator, in 10 of the 17 complaints (59%). 3 of those mention it being replaced or repaired.
- ABS module, pump or brake accumulator10 complaints3 mention a repair or replacement · what Toyota Prius owners paid
6 complaints mention a recall and 7 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 C1252
- Brakes or ABS act up100%17 of 17 complaints
- Warning lights and electrical faults35%6 of 17 complaints
Share of the complaints naming C1252 whose text also describes each problem. A complaint can describe more than one.
Codes owners report with it
C1253 15 C1256 14 C1391 8 U0293 2
Other codes named in the same Toyota Prius complaints, and in how many.
Repair costs
Toyota Prius ABS module replacement cost
Recalls on these Toyota Prius years
- Brakes · 2010 · issued 2013
Nitrogen gas from a component of the brake booster pump assembly could leak into the brake fluid. NHTSA 13V235000 - Service brakes, air · 2010 · issued 2010
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2010 TOYOTA PRIUS AND LEXUS HS250H PASSENGER VEHICLES. NHTSA 10V039000
2 recalls for the same systems (brakes) on the Toyota Prius model years above. A recall for the same system isn't proof it's behind C1252. Recall work is free at any dealer: check a VIN at nhtsa.gov/recalls or with our VIN check.
Keep going
- C1252: meaning, causes and every car that reports it
- Toyota Prius reliability by year
- 2012 Toyota Prius problems and recalls
Other codes Toyota Prius 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 C1252 means
C1252 is a manufacturer-specific code: each carmaker decides what it means, so the same code can point to different problems on different brands. We haven't verified its meaning for Toyota 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): 11777065, 11770551, 11769470, 11754349, 11736173, 11707029, 11696848, 11595842, 11569416, 11547895, 11491960, 11476873 and 5 more.
Quick answers
Which Toyota Prius years have the most C1252 complaints?
In complaints to NHTSA, owners of the 2012 (6), 2013 (5), 2014 (2) Toyota Prius named C1252 most (17 complaints in all, 2008–2015). Raw counts, not a failure rate.
What fixes C1252 on a Toyota Prius?
Owners most often name the ABS module, pump or accumulator (10 of 17 complaints). That's what owners wrote, not a diagnosis: have a shop confirm the cause with a scan and tests before replacing parts.
Sources: NHTSA owner complaints that name C1252 on the Toyota Prius, 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.