The Lemon IndexA transmission fluid pressure reading doesn't match the gear the computer expects. Full P0841 page
10 owner complaints · the #7 code Nissan Altima owners name · 4% of Nissan Altima complaints that name a code (every car: 0.2%)
Middle of 61,000 miles · most between 60,000 and 97,000 (7 owners gave it)
Nissan Altima owners named P0841 in 10 complaints to the U.S. government (NHTSA), most often on the 2016, 2013 and 2017 model years, at a middle of 61,000 miles. The part they name most is the transmission (replaced or rebuilt) (6 complaints). Complaints are owner reports, not proof of a defect.
Nissan Altima model years that report P0841
Owner complaints naming P0841, 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
61,000 miles is the middle of what 7 owners entered. Half were between 60,000 and 97,000 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 transmission (replaced or rebuilt), in 6 of the 10 complaints (60%). 6 of those mention it being replaced or repaired.
- Transmission replaced or rebuilt6 complaints6 mention a repair or replacement · what Nissan Altima owners paid
4 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 P0841
60% of these complaints say the check engine light came on.
- Transmission slips or shifts hard50%5 of 10 complaints
Share of the complaints naming P0841 whose text also describes each problem. A complaint can describe more than one.
Repair costs
- Transmission replacement$4,0003 bills · middle bill
Repair bills owners named in these 10 complaints (3 in all). Owner reports, not a quote: costs vary by shop and region.
Keep going
- P0841: meaning, causes and every car that reports it
- Nissan Altima reliability by year
- 2016 Nissan Altima problems and recalls
Other codes Nissan Altima owners report
P0776 P0335 B0020 P0420 P0725 P0101 P17F0
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 P0841 means
A transmission fluid pressure reading doesn't match the gear the computer expects.
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
- Failing pressure switch
- Low fluid
- Valve body fault
Check the complaints yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11754916, 11404932, 11282969, 11266546, 11244212, 11219151, 11207416, 11202680, 11119525, 11110643.
Quick answers
What does P0841 mean on a Nissan Altima?
Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance. A transmission fluid pressure reading doesn't match the gear the computer expects.
Which Nissan Altima years have the most P0841 complaints?
In complaints to NHTSA, owners of the 2016 (6), 2013 (2), 2017 (1) Nissan Altima named P0841 most (10 complaints in all, 2013–2017). Raw counts, not a failure rate.
What fixes P0841 on a Nissan Altima?
Owners most often name the transmission (replaced or rebuilt) (6 of 10 complaints). 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 P0841 show up on a Nissan Altima?
Owners who gave their mileage reported a middle of 61,000 miles; half were between 60,000 and 97,000 (7 owners).
Can I drive my Nissan Altima with P0841?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
Sources: NHTSA owner complaints that name P0841 on the Nissan Altima, 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.