2018 Nissan Altima power train problems
23 owner complaints filed with NHTSA name the power train on the 2018 Nissan Altima — 10% of all complaints for this model year.
What owners report
“I am currently experiencing CVT failure as of I have filed a case with the nissan consumer affairs unit, case number 56846043. I was advised that even though there was a class action suit in 2022 for CVT issues, my CVT Warranty Extension expired on 12/09/2024 for this class action suit. I purchased…”
filed Jul 7, 2026
“Transmission stopped working on me in the highway cvt code that comes up is P17f0 was in the highway going 45 mph then dropped 5 mph very dangerous. Almost crashed”
filed May 28, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
CVT/TCM CALIBRATION DATA “WRITE” PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB12-103I · Service Bulletin/Repair Instructions · issued Jun 7, 2024
Power Train problems in other Altima years
| Year | Reports | Share |
|---|---|---|
| 2024 Altima | 4 | 10% |
| 2023 Altima | 1 | 3% |
| 2022 Altima | 4 | 13% |
| 2021 Altima | 3 | 4% |
| 2020 Altima | 17 | 10% |
| 2019 Altima | 9 | 4% |
| 2017 Altima | 133 | 34% |
| 2016 Altima | 234 | 43% |
| 2015 Altima | 161 | 17% |
| 2014 Altima | 209 | 19% |
| 2013 Altima | 505 | 22% |
| 2012 Altima | 149 | 35% |
Other reported problem areas on the 2018 Nissan Altima
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.