2012 Toyota Tacoma Fuel System Problems
NHTSA lists 53 Fuel System complaints for the 2012 Toyota Tacoma, 18% of its 295 total complaints for the year, with a median failure mileage of 57,785 miles. The dominant pattern is secondary air injection system failure causing loss of power or limp mode; no related recall is listed, though a service campaign is referenced by owners.
- Fuel System complaints
- 53
- 18% of 295
- Crashes reported
- 1
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 57,785 mi
- Related recalls
- 0
Typical fuel system symptoms owners report
- Secondary air injection switching valve sticks, triggering codes like P2440, P2441, and P2442 and pushing the truck into limp mode.
- Sudden loss of power while accelerating uphill or merging onto highways, with speed capped around 20-30 mph.
- Check engine and traction control lights illuminate together, often at highway speed with no warning.
- Owners describe the secondary air injection pump and valve as a known, recurring defect across many 2012 Tacomas.
- One owner reported a fuel pump making an audible grinding or operating noise after the truck sat parked for hours.
- A later complaint references a Toyota Special Service Campaign (20TC01) performed near 103,417 miles to replace the air switching valve and pump kit.
When 2012 Toyota Tacoma fuel system complaints were filed
First complaint Aug 1, 2012, latest Aug 31, 2026.
Fuel System recalls for the 2012 Toyota Tacoma
No safety recalls on record for this model year.
Fuel System complaints by Tacoma model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- What fuel system problem is common on the 2012 Toyota Tacoma?
- The most reported issue is failure of the secondary air injection pump or switching valve, which triggers codes such as P2440-P2442 and puts the truck into limp mode with reduced power.
- How many fuel system complaints does NHTSA have for the 2012 Tacoma?
- NHTSA lists 53 Fuel System complaints for the 2012 Tacoma, accounting for 18% of the 295 total complaints filed for that model year.
- At what mileage do these fuel system failures typically happen?
- The median mileage at failure reported to NHTSA is 57,785 miles.
- Is there a recall for the 2012 Tacoma fuel/air injection system?
- No related recall is listed in NHTSA data for this issue, though at least one owner mentions a Toyota Special Service Campaign (20TC01) addressing the secondary air injection system.
- Did the fuel system problem cause any crashes or fires?
- NHTSA data shows 1 crash and 0 fires linked to Fuel System complaints for the 2012 Tacoma, with 0 injuries reported.