2021 Toyota Tacoma Problems

What to check before you buy

• Ask the seller not to warm the car up, and start it cold. Listen for ticking, knocking or a rough idle in the first minute.
• Pull the oil dipstick and the oil cap. Low oil, a gasoline smell or a milky film on the cap are reasons to walk away or get an inspection.
• Plug in an OBD2 scanner. Stored or pending codes matter, and so do readiness monitors that show "not ready", which usually means the codes were cleared right before the sale.
• Ask for oil change records. A gap in the records on a model known for engine complaints is a negotiating point at minimum.

Tools that help

What owners said

Engine developed a loud knock while under normal driving conditions at 61,000 miles. Oil was changed every 5k miles since new. Dealer says my oil rings on piston skirt have failed and heavy scoring on cylinder #5 Replaced short block under my aftermarket warranty. Toyota refused to cover it because I was 1k miles over factory warrantyOwner complaint, filed 2026

The plastic coolant crossover valve or pipe failed at 66,000 miles and 5 years of usage. This led to the radiator cracking. After researching online, I read about thousands of Tacoma 3rd generation users with the same issue. Also, the same issue was recalled for several other models of Toyotas but not the Tacoma.Owner complaint, filed 2026

What to check before you buy

• Drive it from cold if you can. Shifts should be smooth in every gear, including reverse.
• Feel for slipping (revs rise without the car speeding up), shudder at low speed and a delay when you put it in gear.
• Listen for whining, which is a common CVT complaint, and clunks when you go from drive to reverse.
• If it has 4WD or AWD, engage it on the test drive and ask when the transmission and differential fluids were last changed.

Tools that help

What owners said

Driving in town 30 to 40mph, (while in drive) the vehicle rev’d up like it was in neutral then went back to normal. That is concerning because it will cause transmission problems & pulling onto a road the truck could shift to (neutral) causing it to not go.Owner complaint, filed 2026

The contact owns a 2021 Toyota Tacoma. The contact stated that while driving 10 MPH, after depressing the accelerator pedal and then attempting to depress the brake pedal to make a left turn, the vehicle failed to respond as intended. An independent mechanic was contacted. The contact pulled over into a church parking lot. No warning…Owner complaint, filed 2025, at 47,000 miles

Half of the owners who gave a mileage had the problem by about 1,000 miles.

What to check before you buy

• Where it is safe, try the adaptive cruise and lane keeping on the test drive and watch for sudden braking or warnings with nothing there.
• Check the windshield in front of the camera and the bumper sensors for cracks, chips or poor repairs.
• Ask whether the windshield has been replaced. The camera has to be recalibrated afterward, and many shops skip it.

Tools that help

What owners said

About a month ago the Blind spot monitoring system failed, dealer said $2500.00 to repair, about 10 days ago, backup sonar parking system failed, dealer cost to repair $2200.00Owner complaint, filed 2026

Auto Emergency Braking has gotten extremely dangerous and locking breaks when nothing is in front of me. Always while in cruise control mode. On long extended highways, the truck will randomly slam on the brakes and skid the back tires. It has happened 6 times now. This most recent one made us slide into the next lane and I had to turn…Owner complaint, filed 2023

What to check before you buy

• The pedal should feel firm and the car should stop straight without pulling, grinding or a pulsing pedal.
• The ABS and stability control lights should go out after startup and stay out.
• Look through the wheels at the rotors. A deep lip on the edge means brakes are due soon, which is a fair thing to negotiate on.

Tools that help

What owners said

Brake master cylinder is leaking in the interior of truck on driver side floor mat. Oil is come from brake master cylinder seal.Owner complaint, filed 2026

when I push the brake pedal, it goes to the floor. I have had the brakes and master cylinder replaced. after about one month the brakes started failing again. I am going to take it back to the mechanic to have them re-evaluate the brakes. No kind of official has inspected my truck. I have been having braking issues for about a year.Owner complaint, filed 2026

What to check before you buy

• Smell around the engine bay and under the rear of the car for raw fuel.
• On the test drive, accelerate firmly from a stop and up a grade. Stumbling, surging or a flashing check engine light are red flags.
• Fuel pump recalls are common. Check this exact VIN for open recalls before you buy.

Tools that help

What owners said

After I purchased my 2021 Toyota Tacoma TRD Sport with 4 miles on it and at 1,332 miles on 11/26/21, the Check Engine light with Traction Control Off light came on while I was driving. I immediately pulled over and on the truck media screen it read this: "A malfunction in the electronic control of the engine, throttle or automatic…Owner complaint, filed 2026

The contact owns a 2021 Toyota Tacoma. The contact stated that while her husband was driving at highway speeds, the vehicle stalled with the engine oil warning light flashing on the instrument panel. The contact stated that her husband detected a fuel odor coming from the vehicle after the failure. The driver was able to restart the…Owner complaint, filed 2025, at 75,000 miles

What to check before you buy

• Test every switch: windows, locks, mirrors, seat heaters, the screen, the backup camera, Bluetooth and every USB port.
• Watch the dash at startup. Every warning light should come on briefly and then go out.
• Have the battery and charging system tested. A weak alternator or battery drain shows up here.

Tools that help

What owners said

The Multi-Information Display (MID) on the instrument cluster (combination meter) has failed completely. The display shows full-width horizontal RGB scan lines across the entire screen with no readable information. The analog gauges (speedometer and tachometer) remain functional but all digital display information is unavailable…Owner complaint, filed 2026

Digital instrument panel speedometer screen has gone blank. No longer displays speed. This occurred while driving the vehicle.Owner complaint, filed 2026

What to check before you buy

• The air bag (SRS) light should come on at startup and go out within a few seconds. If it stays on, the system may not work in a crash.
• Air bag recalls are some of the most serious. Check this exact VIN for open recalls and get proof any recall work was done.

Tools that help

What owners said

I was in a severe T-none car accident and the airbags did not deploy. The power restrain activated, the seat locked in place but no airbag deployment. The car that hit me was going at aprox. 50-60MPH. I could have died and so could have my 11 & 6 year old passengers. My sister got cought in between the cabin space and the impacted door.Owner complaint, filed 2022

I was rear ended in my Tacoma and then hit at about 30-35mph in the front driver side. No air bags deployed anywhere in the vehicle and the driver head rest that was fully installed went flying out of the seat. Vehicle is currently waiting to be inspected by insurance representatives.Owner complaint, filed 2021

Parts named most: Body (5).

What to check before you buy

• Look underneath with a flashlight. Utah road salt is hard on frames, brake lines and the bottoms of doors.
• Open and close every door, the hood and the liftgate, and lock and unlock each one.
• Use a paint thickness gauge and compare panels. A panel that reads very differently from the rest has likely been repaired.

Tools that help

What owners said

The cabin air pressure vents behind the back seat are leaking letting water into the vehicle. The seals have dried up. It's causing a moldy smell in the vehicle.Owner complaint, filed 2026

Toyota addressed this issue with the frame paint peeling off long ago but they have not launched a customer support program to solve the problem yet. When we reached their Brand Engagement center line (1-888-270-9371) and they do not provide a hard or estimated date to launch the repair program. The vehicle was already inspected by Round…Owner complaint, filed 2024

What to check before you buy

• On the test drive, press the gas gently and firmly. The response should be smooth with no lag or surge.
• Set the cruise control, then use resume and cancel to make sure each one works.

Tools that help

What owners said

I have experienced short periods with my Tacoma accelerating when my foot wasn't on the gas pedal. The floor mat was pinned down correctly and not in the way. I was turning left and my truck started to speed up like the gas was being pressed. I had to hit the brakes as a red light was coming and vehicles were stopped at the Red light. I…Owner complaint, filed 2022

Driving at approximately 55 mph and dash lights started flickering, radio went off, reset to 530 (am radio). Vehicle started sputtering and slowing down in traffic and completely shut down. Lost all power and coasted to side of road. I had no or little control of vehicle. I have "connected services" that was to warn me about mechanical…Owner complaint, filed 2024

What to check before you buy

• Turn the wheel lock to lock while parked and listen for groaning, clicking or binding.
• On a straight road the car should track straight with the wheel centered and no loose feeling.
• A power steering warning on the dash, even briefly, deserves a mechanic’s look before you buy.

Tools that help

What owners said

The contact owns a 2021 Toyota Tacoma. The contact stated while driving at an undisclosed speed, the vehicle lost power steering functionality. The vehicle was driven to the destination. The contact checked the power steering fluid reservoir and discovered that the power steering fluid reservoir was empty. In addition, the contact became…Owner complaint, filed 2024, at 47,000 miles

There are three concerns in this write up: at 117000 miles the blind spot monitoring system has fails and will cost $300 to repair. More concerning is that it was recommended I replace the Power Steering Lines at a cost of $927 and the Transmission Lines at a cost of $797 due to severe rusting and corrosion. Its recommended before they…Owner complaint, filed 2026

What to check before you buy

• Drive over a few bumps and potholes slowly with the radio off and listen for clunks or rattles.
• Check the tires for uneven wear on the inside or outside edges, a sign of alignment or suspension trouble.
• Look behind the wheels for oily, wet shocks or struts.

Tools that help

What owners said

My 2021 Toyota Tacoma is experiencing these exact conditions as discussed in this TSB. T12he only difference between the vehicle in this TSB and mine is I have a 2 wheel drive Tacoma and this TSB is for the 4 wheel drive model. 2021 Toyota Tacoma power train TSB (Bulletin T-SB-0124-20) Bulletin Date:Dec. 15, 2020 Component:Power train.…Owner complaint, filed 2021

What to check before you buy

• Pull out and latch every seat belt, and let each one retract on its own.
• Try every seat adjuster, and watch for a passenger air bag "off" light when an adult is in the seat.

Tools that help

What owners said

Could feel and hear the front passenger seat (including the supplemental restraint system airbag) and seat belt move side to side and making a noise. I took the vehicle to Toyota of Denton, in Denton Texas for evaluation. Here is what they found from the service manager's email "Yours will need the seat frame replaced. The seat was…Owner complaint, filed 2023

The subject vehicle left roadway and impacted a tree in a pure frontal impact. The front seat passenger airbag failed to deploy. An 11 year old child was seated and properly belted in the front passenger seat. The child was killed as a result of blunt force trauma to his head when his head struck the front dash structure. In addition…Owner complaint, filed 2023

What to check before you buy

• Read the four-digit DOT date on each tire. Tires older than about six years should be replaced, whatever the tread looks like.
• Check tread depth on all four. On AWD vehicles all four tires should match.
• The tire pressure light should go out after startup.

Tools that help

What owners said

Firestone Destination Le2 P245/75R16 On February 20, 2021 just 15 days after I purchased my brand new truck the rear passenger side tire dramatically exploded while I was driving in to my neighborhood. I was traveling at approximately 35 mph when out of nowhere a sound similar to a shotgun interrupted my driving and immediately forced me…Owner complaint, filed 2024

My tires have only 5600 miles on them...Nitto 265/65R17's. I have my 5,000 mile service. They rotated the tires. A couple of days later I noticed my steering wheel shaking. I took it back to the dealership. They said my tires have High Road Force..only the two that were from the rear. They contacted Nitto, they will not replace the tires…Owner complaint, filed 2021

What to check before you buy

• Check every light: headlights on low and high, fog lights, brake lights, turn signals and reverse lights.
• Run the wipers on every speed with washer fluid, and run the defroster front and back.

Tools that help

What owners said

Defect in windshield consisting of thousands of tiny bubbles in the laminate which cause the windshield to become slightly opaque in direct sunlight or bright oncoming headlights. Dealer insists this is rock strikes. Toyota says the windshield is out of warranty. This defect began to appear at about 40,000 miles and is getting worse.…Owner complaint, filed 2023