2018 TOYOTA TUNDRA Complaints

Fuel pump out after 3 weeks.4-24-25 Three weeks ago 4-07-25 I had an issue with my fuel pump and the Toyota dealer replaced it. I also reported it here at that time. I typed up what the truck did and sent it to y'all before i ever got word of what was wrong. The report from them is not accurate. They stated I had run out of gas and the fuel pump was burnt up. As I stated I lost propulsion but the truck was still running. I will say I also know I had a couple of gallons of gas in it as I added some the day before and I know how far I drove as I put a little extra over the distance I was going and of course it had gas in it since I drove it to the gas station. Anyways they replaced the pump and now 3 weeks later 4-24-25 the new pump is out. The truck acted the same as it did 3 weeks ago and again it wouldn't start after turning it off. I had to have it towed to the dealer again. They confirmed today it was the fuel pump that had gone out. I know I had about a half tank of gas this time.

FUEL PUMP. I was driving at highway speeds of about 70mph when I suddenly lost propulsion but the truck was still running. I had cars behind me and coming from the front. I shifted to neutral and back to drive to see if that would fix it and nothing changed. I pulled over onto the shoulder and put it in park. I went back to drive and nothing again. I turned it off hoping for a reset and it wouldn't start after that. The starter was turning over but would not fire up the engine. Had to have it towed to the dealer and they say its the Fuel Pump. No lights or warnings ever came on the dash. The Truck is at the Toyota Dealer being fixed right now.

My truck continues to start extremely rough and it staled out on me the other day driving down the road. The problem has persisted for several months now and I have been told that it is a problem with the fuel pump. I know that Toyota had a massive recall on fuel pumps but my truck was not under that recall and believe that it should have been.

Doesn’t want to start very good and throws misfire codes and turns off trailer breaks and precollsion sensors.

3 of 4 tires LT285/75/R20 have consistant cracks around the sidewall of the tires rubber showing small shining metal strips

This is the second occurrence of "rodent" damage eating engine wires. The first incident cost me $2,000. This has now occurred again. There is something "maybe soy based" or environmentally friendly materials that are attracting rats, and mice to cause engine damage by eating essential wiring and sensors, causing a fire risk, and highway safety risk.

This case results from the malfunctioning trailer brake ECU on 2018-2019 Tundras. There is a Toyota service bulletin T-SB-0036-19, which specifies an updated controller to replace the defective model. Part # : Original 89547-0C020 Update/replacement 89547-0C060 Toyota will not replace this defective part outside of the original warranty period despite the issuance of an updated replacement part. The service bulletin wasn’t even issued until 4/19 possibly giving no recourse to owners whose warranty had tolled. The newer part number, suggests this was a dangerous defect that was upgraded. A review of this matter online details this problem has frequently occurred. The reason it’s not more commonly reported is that a minority of Tundra owners tow trailers, and even fewer tow with electric brakes. Regardless, this is a significant safety issue where the Tundra owners are forced pay about $1,100 to repair this defective part. This matter should be elevated to a recall since losing the functionality of one’s trailer brakes is a very dangerous situation.

I was inspecting the vehicle for an extended warranty company the issue was the transmission. I was in the process of inspecting the vehicle when I was installing the Blue Diver to retrieve the stored codes in the system when I leaned in to turned the accessory key the vehicle started in gear and drove froward. Causing the left front door to close on me from the lift.

The vehicle has had no other fuel issues and has always been kept up on maintenance at the Toyota dealership. Recently we had issues after getting gas and it stalling. Today after closer inspection the dealership called to say it was the fuel pump. The fuel pump has melted to the gas tank. This is obviously a huge fire and safety risk. There are no after market parts that would cause this.

I am having problems with the integrated brake controller constantly disconnecting when pulling any type of trailer. When ever I pull a trailer I never know when the controller will disconnect and I'll lose brakes on my trailer. This happens at any speed while towing. This seems to be a thing for 2018 tundras, as I've read about many other complants.