2020 Toyota Tacoma: check engine light

Filed Mar 17, 2026 · Acceleration, Fuel system · TX

On Sunday, March 15,2026, I was driving from Houston, TX to Pharr, TX at the speed of 75mph on the left lane to pass an 18 wheeler, with another 18 wheeler behind me, and my truck started idling erratically. I lost speed and my service engine light came on. My truck slowed down and I almost got in a car accident with the 18 wheelers because the truck did this. The truck behind me slowed down on time and it went immediately to the right lane to avoid hitting my truck. I feared for my life. All the vehicles behind me and the 18 wheelers also went to the right lane to avoid me. By this time, the TRAC light had already come on also. I managed a space of no vehicles and steered towards the right safety lane. I pulled over at the local truck stop and stoped my truck to rest. After about 5 minutes I tried starting my truck and it wasn’t starting. I am a little mechanically inclined, so I started troubleshooting the truck. My code reader gave these codes: P1605-00, P0300-27, P0300-85, and P0302-00. Unscathed to start the truck after a while and got back on the road. The drive was brutal, as the truck kept burping erratically, but I made it home safely. I took my truck to the mechanic and he did some repairs and told me the issue is the fuel pump. I have checked the recalls for my truck but it shows zero recalls for my truck. Luckily I am alive to report this life threatening safety issue that Toyota has on this model. How do I get Toyota responsible to make the repairs on my truck? The part alone is over $1200 at O’Reily auto parts.

Filed Jan 22, 2026 · Driver assistance, Engine · NY

Toyota has a manufacturing defect going on with their v6 in Gen 3Tacoma's. I have a 2020 Limited with 48,200 miles that needs a new cylinder head. It threw a check engine light on me, and luckily enough I took it to the dealership within about 30 miles, otherwise my engine could have exploded. I have videos from the dealership inspection that I cannot attach here. I have since found via the error code a history of these issues on newer trucks. [XXX] [XXX] [XXX] [XXX] [XXX] [XXX] I believe that this issue could pose serious safety issues for someone who is not as immediate on stopping driving, as it was just a check engine light. If you were to drive on this light down the highway, and have catastrophic failure, the Tacoma becomes a completely unpowered hazard. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 6, 2025 · Fuel system · NE

The check Engine light came on two different times for us on the 2020 Toyota Tacoma. We called Toyota to see if we could continue to drive it and they asked if the light stayed on or was blinking, and if it stayed on we could still drive the vehicle . We did not feel comfortable doing that so made an appointment on February 5th,2025 and after we parked the truck at the dealership, they started it again the check engine light did not come on. They were going to send us home. The service man then asked if we wanted do a Diagnostic test to check the system and that is when they found it was the low pressure fuel pump, He said that was a good call to have not drove it home because if you're driving at a high rate of speed the truck could just stop and could cause and accident [ which is a serious safety issue for us] We checked for a recall with our VIN # and found they extended the recall and some vehicles might get a recall letters by Late March of 2025. But to keep checking if your VIN is covered. We have to pay over $1200 to get this fixed and feel that for a New 2020 vehicle purchased this is enough of a safety issue that this should be covered by Toyota. We read that these fuel pumps should last at least over 100,000- 200,000 miles. Please respond ASAP how you are going to handle this. We could have had an accident due to this and been killed. The Toyota Dealership in Lincoln, NE. has the part on order and should be trying to get it installed by the end of the week if you need to contact them. We do not have the repair bill amount as of yet, because the repair is not complete yet!

Filed Dec 20, 2024 · Electrical, Fuel system · CA

Started my truck up to go to the store started driving and all of a sudden it acted like it was running out of fuel check engine light came on and a ! Symbol came to barely make it back home it sat for three weeks and had to have it towed to dealer they diagnostic on it and said it was a fuel pump problem the thing is there's a recall on this same vehicle but not mine $1400 is what they want to fix there problem my truck should on the recall

Filed Dec 17, 2024 · Electrical · 50,000 miles · TX

The contact owns a 2020 Toyota Tacoma. The contact stated that the vehicle failed to start. The contact was able to jumpstart the vehicle. The contact became aware that the battery terminal was corroded. The vehicle was taken to the dealer, where the battery was replaced, and the repair was partially covered; however, the failure persisted. Additionally, the contact stated while driving at various speeds, the infotainment system turned off and on independently. The contact stated that while driving at various speeds, the vehicle shuddered, and the engine made an abnormal sound. The check engine warning light and several other unknown warning lights were illuminated. The vehicle was taken to the dealer, where it was determined that the battery needed to be replaced, and the contact was informed that the repair would be partially covered. The contact stated that the battery failure had caused further electrical damage to the vehicle and was concerned that the battery replacement would not correct the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 50,000.

Filed Dec 1, 2024 · Fuel system · CA

Was driving to the store, and it started cutting out jumping and jerking with tremendous loss of power barely made it home had to push it in my DRV way and still no start it says my truck is not in the recall for faulty fuel pump warning check engine lights came on and says malfunction in the throttle body censer and automatic transmission sender

Filed Mar 24, 2021 · Electrical · 6,200 miles · AZ

In late november or early december of 2020, I had a check engine light appear. I cycled through several hundred miles (500+) thinking it may have been a loose gas cap issue that needed time to sort itself out. The light did not resolve itself and I visited the closest dealership, autonation toyota, in tempe. I was surprised to learn that there was damage to the engine wiring harness caused by rodents. Many manufacturers, including toyota, have switched to soy-based wiring insulation which is attractive to rodents. The service representative pointed at 1-2 other vehicles (all new) that were in the dealership for the same problem and said they've had an increasing amount of vehicles in for this issue. My vehicle was 7 months old at this point with 6840 miles on it. The wiring harness part was a special order part and that cost alone was $1431.79. Add in the estimated 20 hours of labor and the "fix" would be $4592.61 at that dealership. I asked if it would be ok if I continued to drive the vehicle while we explored our options with an insurance claim. I was told the vehicle could experience a sudden loss of acceleration and cause a crash. We were able to initiate a no fault claim with our insurance company, but had to pay a $500 deductible as toyota would not warranty this issue caused by their soy-based wiring insulation. Work was completed at the leasing toyota dealership, not autonation. Something needs to be done about this soy-based wiring insulation issue. Not only is this type of wiring manufacturing attractive to rodents, thus causing damage that can result in dangerous driving conditions, but the wiring also deteriorates at a much higher rate in higher temperatures. (we had a bmw 550 with soy based wiring that was disintegrating in the headlight housing.) manufacturers need to stop producing soy based wiring insulation or improve it to repel rodents.