2021 Toyota Tacoma Owner Complaints

Having two issues major issues that’s causing me a $10,000 bill. The timing cover is leaking and there is a coolant bypass hose that is leaking. I have spend a lot of maintenance on this truck on maintaining it to have to remove the engine. As for the forward collision warning ive had it go off multiple times witout a vehicle there. While in cruise control ive had it unexpectedly break on me when there was no visible vehicle infront or next to me.

NHTSA ID

11755683

Incident

Jun 10, 2026

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

NHTSA ID

11750147

Incident

Jul 13, 2026

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 including speed, warnings, fuel economy data, and safety system status indicators. This failure occurred suddenly with no prior warning. Vehicle has approximately 50,000 miles. I am aware that Toyota issued Safety Recall 25V595 in September 2025 covering the identical combination meter failure on 2023-2025 model year Tacomas and other Toyota vehicles. The root cause identified in that recall — accelerated deterioration of the memory device inside the combination meter due to improper programming — appears to be the same failure mechanism present in my 2021 model year vehicle. I am filing this complaint to formally document that this known defect extends to 2021 model year Tacoma vehicles and to request that NHTSA investigate expanding recall 25V595 to include earlier model years. Toyota should be required to repair or replace the combination meter on affected 2021 vehicles at no cost to owners, consistent with the remedy already established for 2023-2025 vehicles. A Toyota case has been opened with the Brand Engagement Center at [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11746832

Incident

Jun 26, 2026

Digital instrument panel speedometer screen has gone blank. No longer displays speed. This occurred while driving the vehicle.

NHTSA ID

11746375

Incident

Jun 17, 2026

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 $2200.00

NHTSA ID

11743192

Incident

May 29, 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.

NHTSA ID

11740269

Incident

May 25, 2026

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 transmission has been detected. Contact your Toyota dealer and have your vehicle inspected." The truck was rough idling and had no acceleration. I had the truck towed to dealership where it was purchased and upon diagnostic, it was determined that #3-cylinder injector was reading "Open Circuit" with code P020313. Being under warranty the dealership repaired the bad injector. No further issues until 4/22/26. On 4/22/26 with mileage at 48,361, I started my truck in my driveway and immediately recognized that the truck was rough idling and the Check Engine Light along with the Traction Control Light Off being on. The exact same message displayed on the screen as above, "A malfunction in the electronic control of the engine, throttle or automatic transmission has been detected. Contact your Toyota dealer and have your vehicle inspected.". The truck was towed back to the same dealership and upon diagnostic the same issue of #3-cylinder injector "open circuit" with code P020313 was revealed. It was recommended to replace the bad #3-cylinder injector and also recommended to go ahead and replace all of the spark plugs. The total repair bill we be ~$2600 when I go to pick it up in 3 days. This is not just a coincidence that the exact same #3-cylinder injector has gone bad at 1,332 miles and then again at 48,361 miles. Seems to be a connection between the injector going bad and the issues that they have had with the High Pressure Fuel Pumps. Toyota needs to acknowledge this problem.

NHTSA ID

11733332

Incident

Apr 22, 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.

NHTSA ID

11722917

Incident

Mar 11, 2025

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 rust through and break/leak.

NHTSA ID

11720723

Incident

Feb 25, 2026

FRONT RADAR RECALL- NO BACK COVER AND GOES DEFECTIVE

NHTSA ID

11715783

Incident

Feb 1, 2026

Vehicle was in car accident where airbags did not deploy.

NHTSA ID

11707694

Incident

May 3, 2023

When vehicle is driven at 85 mph (cruise control set) speedometer jolts. Speed must be reduced to 84 to resolve issue.

NHTSA ID

11707691

Incident

Jul 17, 2024

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 vehicle and drove the vehicle to the dealer. While at the dealer the vehicle was test driven and the failure was acknowledged. The vehicle was then diagnosed with a defective fuel pump. The vehicle was repaired but remained with the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 75,000.

NHTSA ID

11705044

Incident

Dec 8, 2025

Mileage

75,000 mi

Heated seat stopped working after smelling a slight burning smell. I investigate and found discolored and burnt electrical connections on the heated seat wires. This happened on the driver's seat. I'm worried the same thing could happen on the passenger side.

NHTSA ID

11701925

Incident

Oct 29, 2025

truck is under 20 thousand miles right front brake shoes are loose and not in place. the whole brake assembly is completely rusted .brake lines are leaking.

NHTSA ID

11700509

Incident

Nov 16, 2025

The contact owns a 2021 Toyota Tacoma. The contact stated that the vehicle experienced extended cranking on cold start. There was no warning light illuminated. The dealer was contacted and informed the contact that the vehicle was not covered under Toyota Campaign Number: 23TE01(High-Pressure Fuel Pump – Low Pressure Fuel Seepage). The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in a recall. The failure mileage was approximately 62,000.

NHTSA ID

11700086

Incident

Aug 18, 2025

Mileage

62,000 mi

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 light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 47,000.

NHTSA ID

11699491

Incident

Nov 14, 2025

Mileage

47,000 mi

The contact owns a 2021 Toyota Tacoma. The contact stated that there was a coolant leak, and the coolant level in the reservoir was low. The coolant reservoir was topped off; however, the failure reoccurred. While having an oil change at Keys Toyota (5855 Van Nuys Blvd, Sherman Oaks, CA 91401); the contact was informed about the coolant leak in the rear of the engine. The contact stated that the vehicle failed to start. There were no warning lights illuminated. The contact called the local dealer, who confirmed there was no warranty coverage for the repair. The vehicle was diagnosed with a coolant leak, and the starter needed to be replaced. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 102,000.

NHTSA ID

11690504

Incident

Sep 25, 2025

Mileage

102,000 mi

AC compressor pressure release discharges gas. Dealer states new compressor needed. Vehicle is only 4 years old.

NHTSA ID

11688907

Incident

Sep 18, 2025

Transmission constantly seeking a gear usually 5th to 6th while using Cruize control. At times over-reving to near redline. End up having to manuall downshift to fourth back and fourt to drive. End up shifting more frequently that would if driving my mauual 6 speed transmission tacoma with the V6 as well.

NHTSA ID

11681105

Incident

Jan 1, 2024

The contact owns a 2021 Toyota Tacoma. The contact stated that upon starting the vehicle, the fuel pump was very noisy while having a routine oil change at an independent mechanic. There was an abnormal clacking sound detected. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 20V682000 (Fuel System, Gasoline). The vehicle was taken to the local dealer, where it was diagnosed and determined that sound was coming from the fuel pump. The dealer informed the contact that the sound was normal. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 24,000.

NHTSA ID

11655747

Incident

Apr 8, 2025

Mileage

24,000 mi

N/A

NHTSA ID

11649322

Incident

Mar 19, 2025

The contact owns a 2021 Toyota Tacoma. The contact stated while the vehicle was parked at the residence, the contact raised the hood to inspect the engine and became aware that the coolant bypass valve was leaking coolant. A dealer was not contacted. The vehicle was taken to a dealer to be diagnosed and the contact was informed that the coolant bypass valve needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the part was not under warranty. The approximate failure mileage was 50,000.

NHTSA ID

11645330

Incident

Feb 26, 2025

Mileage

50,000 mi

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The "coolant bypass hose/joint" (Part #: 16356-31051) located at the rear of the engine, connecting the two heads, failed. This part is made of plastic and is known to be a weak point in the 3.5L V6 (2GR-FKS) engine. The failed component is still in the vehicle and can be inspected upon request. 2. How was your safety or the safety of others put at risk? A coolant leak from this component can lead to engine overheating, which could cause sudden engine failure while driving, increasing the risk of an accident. Since the leak is not easily visible under the hood, a driver may not notice the issue until significant overheating occurs, potentially leaving them stranded in unsafe conditions. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the issue was confirmed by the dealership after an inspection. They identified the coolant bypass hose/joint as the source of the leak. Many users on the forum TacomaWorld have also experienced the same issue with their vehicles. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle was inspected by the dealership, but it has not been inspected by Toyota directly, the police, or an insurance representative. 5. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? There were no warning lamps or dashboard messages indicating a problem. The only symptom was a small puddle of coolant on the ground a week after purchasing the vehicle. Upon further inspection, a trail of coolant was observed running down onto the passenger side of the transmission bell housing. Would've costed me 1,000 dollars if didn't have warranty.

NHTSA ID

11644223

Incident

Feb 18, 2025

2021 Toyota Tacoma OR coolant bypass joint leaks at only 47800 miles. The cost of repair is $1490.36

NHTSA ID

11628639

Incident

Nov 29, 2024