| Issue ID | 1602081 |
| Internal NHTSA # | 11256330 |
| Manufacurer | Toyota Motor Corporation |
| Brand | TOYOTA |
| Model | TUNDRA |
| Model Year | 2013 |
| File date | 01/06/18 |
| Component | FUEL/PROPULSION SYSTEM |
| Product type code | VEHICLE |
| Description of the problem | Ecu problem. Since june 2018, i have started to see decreased mpg (avg 9 mpg, 50/50) and vehicle exhibiting high alc. Density % when fueled with e0/e10 gas. No dtc codes, but extended crank exhibited, poor performance and shifting observed. This is a flex vehicle. Fuel trims were way into negative and i have called toyota and filed a case when this happened, but was out of warranty by 2 months.(called aug 2018) vehicle had 55k miles. They said its up to the dealership to remedy the issue. Took it to the dealer and they re calibrated the ecu per toyota tsb 0058-13 (so they know of the problem , but not doing anything about it) to me it looks like they are hiding something, (dieselgate) for a year, vehicle was fine and did not show any issues with alc. Density % , mpg was normal and performance/driveability improved, until sep 2019. Same thing. Alc. Density % too high causing poor mpg. I have to pay the dealer too just reset the values, even though this issue falls under federal emission standards and it has warranty of 84 months or 80k. So even after the fix ecu changes the values after a year. Clearly ecu issue that toyota does not want to take responsibility for. This goes against gas emissions (ghg) and fuel economy standards for light-duty vehicles. There are known issues about this out there on flex fuel tundras, but toyota is trying to hide this. |
| Vehicle Mileage at Failure | 55000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | WVC, UT |
| VIN pattern | 5TFDW5F16DXXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | N |
| Was part original equipment? | |
| No. of injured persons | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | |
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| Vehicle speed | |
| DoT tire identifier | |
| Tire size | |
| Location of tire code | |
| Type of tire failure code | |
| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
| Dealer's telephone number | |
| Dealer's city | |
| Dealer's state code | |
| Dealer's ZIP code |