NHTSA FEDERAL EVIDENCE AUDITAudited: 2026-08-24

2020 Toyota Tundra Common Problems & Defect Telemetry

Authoritative defect intelligence synthesized from 45 verified NHTSA owner complaints, 5 federal safety recalls, and interquartile failure mileage telemetry.

Data Grade: MEDIUM2 Odometer Verified EntriesMethodology
Executive AI Defect Summary

The 2020 Toyota Tundra receives a 6/10 MazicBay Reliability Index based on 45 verified NHTSA federal complaints and 5 safety recalls. The primary reported failure mode is Engine Stalling, Oil Consumption & Cooling Defect Reports with a median failure point at 55,000 miles (IQR: 35,00075,000 mi). Out-of-warranty repairs benchmark at $950 – $3,200 .

Toyota Tundra PlatformToyota Tundra Series
DLC Port: Driver side lower dash assembly near parking brake

*Representative vehicle platform imagery. Body styling varies across generations.

MazicBay Reliability Index
6 / 10

3.8 complaints / 10k sold

NHTSA Owner Complaints
45

Verified US federal records

Safety Severity Grade
Critical Risk

Crash, fire & stall audit

Federal Safety Recalls
5

5 Active / Free Remedies

Switch Tundra Model Year (2014–2025)
Defect Clustering

Top Reported Problem Clusters (7)

Ranked by NHTSA Complaint Frequency
#1 ENGINE & COOLINGMedium Severity73% Match Confidence

Engine Stalling, Oil Consumption & Cooling Defect Reports

9
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$950 – $3,200 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Engine sudden stall / hesitation while driving
  • Abnormal oil burning / consumption
  • Check Engine Light (MIL) flashing
  • Engine overheating / coolant loss
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11658131 • Filed: 05/01/2025

The contact owns a 2020 Toyota Tundra. The contact stated that on several occasions while driving at various speeds, the "Pre-Collision System Failure” warning light and icon were illuminated. Additionally, the message "See Dealer" was displayed. The contact also stated that t...

ODI #11575646 • Filed: 03/05/2024

The contact owns a 2020 Toyota Tundra. The contact stated while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. The check engine and traction control...

ODI #11484696 • Filed: 09/15/2022

Air conditioning compressor partially seizes if air conditioning is turned on while driving and when air conditioning knob is on at time engine is started. Makes very loud noise. When driving, and it occurs, truck will slow suddenly as if the brakes were applied until compress...

#2 BRAKING SYSTEM & ABSCritical Severity73% Match Confidence

Service Brakes, ABS Actuator & Master Cylinder Reports

8
Federal Complaints
Failure Mileage (Median):8,800 milesIQR: 8,8008,800 mi
Estimated Repair Cost:$350 – $1,100 MazicBay Repair Intelligence Model
Recall Status:Under Investigation / Recall AuditNHTSA Campaign Audit
Reported Defect Symptoms
  • Spongy or hard brake pedal travel
  • ABS / Brake warning light illuminated
  • Extended stopping distance / pedal vibration
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11662846 • Filed: 05/23/2025

It happend today .. I notice while I Cleaned .....back seat ceiling leaking . it seem come from third brake light it no recall on list..

ODI #11562624 • Filed: 12/29/2023Odometer: 8,800 mi

I was driving in a 25 MPH zone approaching a red light preparing to stop. I had increased the pressure on my brake pedal and then my foot slipped of the pedal just seconds before I ran into a truck that was stopped at the red light. After further investigation I found out that...

ODI #11484696 • Filed: 09/15/2022

Air conditioning compressor partially seizes if air conditioning is turned on while driving and when air conditioning knob is on at time engine is started. Makes very loud noise. When driving, and it occurs, truck will slow suddenly as if the brakes were applied until compress...

#3 FUEL SYSTEM & INJECTIONMedium Severity65% Match Confidence

Fuel Pump Pressure Loss & Fuel Delivery Defect Reports

5
Federal Complaints
Failure Mileage (Median):2,000 milesIQR: 2,0002,000 mi
Estimated Repair Cost:$650 – $1,250 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Sudden loss of propulsion power at highway speeds
  • Extended engine cranking / failure to restart
  • Fuel odor near fuel tank / engine bay
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11575646 • Filed: 03/05/2024

The contact owns a 2020 Toyota Tundra. The contact stated while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. The check engine and traction control...

ODI #11373015 • Filed: 11/04/2020

I ACCELERATED FROM A STOP MAKING A RIGHT TURN IN A NORMAL MANNER TO KEEP SAFELY IN FRONT OF ONCOMING TRAFFIC, I HAD NO POWER ALTHOUGH I KEPT PUSHING THE ACCELERATOR. MULTIPLE LIGHTS FLASHED ON THE DASH. I COASTED TO THE SHOULDER OF THE ROAD. AFTER I STOPPED, ALL THE LIGHTS ON ...

ODI #11351487 • Filed: 08/27/2020Odometer: 2,000 mi

UPON FILLING UP WITH FUEL AT VARIOUS FUEL STATIONS, WHEN THE PUMP SHUTS OFF AND IS REMOVED FROM THE FILLER NECK, FUEL BEGINS TO COME BACK OUT THE FILLER NECK AND POUR OUT ONTO THE VEHICLE AND GROUND. VEHICLE ONLY HAS 2000 MILES ON IT AND HAS DONE THIS FROM DAY ONE. THE SPILLS ...

#4 ELECTRICAL SYSTEM & BATTERYMedium Severity74% Match Confidence

Electrical Parasitic Drain, Infotainment & Harness Reports

5
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$280 – $850 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Unexplained battery drain after sitting overnight
  • Infotainment display / instrument cluster blackouts
  • Accessory malfunction / alternator fault warnings
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11658131 • Filed: 05/01/2025

The contact owns a 2020 Toyota Tundra. The contact stated that on several occasions while driving at various speeds, the "Pre-Collision System Failure” warning light and icon were illuminated. Additionally, the message "See Dealer" was displayed. The contact also stated that t...

ODI #11509652 • Filed: 03/01/2023

NOTE: Toyota has confirmed this issue, but is unable to resolve this. When the SOS button is pressed, the DCM module is supposed to send the proper VIN number and location to the call center. The call center does not receive the proper VIN number and pulls up the wrong person ...

ODI #11448789 • Filed: 01/25/2022

The contact owns a 2020 Toyota Tundra. The contact received notification of NHTSA campaign number 21V688000 (Exterior Lighting, Electric System) however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part was no...

#5 STEERING & SUSPENSIONLow Severity85% Match Confidence

Electric Power Steering Assist & Suspension Noise Reports

4
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$450 – $1,400 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Sudden loss of electric power steering assist
  • Steering wheel pull or highway wander
  • Clunking / knocking noise over bumps
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11735058 • Filed: 05/01/2026

Steering is intermittently difficult, almost as if no power steering. Steering wheel does not return to center after a turn. There were no warning lamps or messages displayed on the vehicle. This is a safety issue in that it could an accident by not responding properly to driv...

ODI #11442579 • Filed: 12/03/2021

I bought a 2020 Tundra in mid year of 2020. By December 2020 I started to notice a strong vibration in the steering and from the front end between the low speeds of 20-30 mph and between 60-70 mph. The hotter the vehicle gets the more vibration occurs. Now my alignment seems o...

ODI #11398452 • Filed: 03/01/2021

TL* THE CONTACT OWNS A 2020 TOYOTA TUNDRA. THE CONTACT STATED THAT WHILE DRIVING BETWEEN 55 TO 75 MPH, THE STEERING WHEEL AND VEHICLE SEVERELY SHOOK AND VIBRATED. EVENTUALLY THE FAILURE STARTED OCCURRING WHILE DRIVING AT VERY SLOW SPEEDS. THE VEHICLE WAS TAKEN TO THE LOCAL DEA...

#6 TRANSMISSION & DRIVETRAINLow Severity75% Match Confidence

Transmission Hesitation, Hard Shifting & Slipping Reports

3
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$1,400 – $3,800 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Hard gear shifts / delayed engagement into Drive/Reverse
  • Transmission shudder / jerking under acceleration
  • Transmission slipping between gears
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11484696 • Filed: 09/15/2022

Air conditioning compressor partially seizes if air conditioning is turned on while driving and when air conditioning knob is on at time engine is started. Makes very loud noise. When driving, and it occurs, truck will slow suddenly as if the brakes were applied until compress...

ODI #11398757 • Filed: 03/02/2021

TL* THE CONTACT OWNS A 2020 TOYOTA TUNDRA. THE CONTACT STATED WHILE DRIVING AT 10 MPH, THE FOUR-WHEEL DRIVE WOULD NOT ENGAGE. THE CONTACT STATED WHEN TRYING TO ENGAGE THE FOUR-WHEEL DRIVE, THE VEHICLE WOULD MAKE A LOUD NOISE AND NOT ALLOW THE VEHICLE TO TURN. THE CONTACT STATE...

ODI #11342298 • Filed: 07/30/2020

I BOUGHT A NEW 2020 TOYOTA TUNDRA 4X4 CREWMAX AND IT IS NOT PERFORM TO WHAT A V-8 POWERTRAIN OF 5.7 LT, AND 381 HORSE POWER SHOULD BE. THE ACCELERATOR ON THIS 2020 TUNDRA IS NOT FUNCTIONING PROPERLY. IT WILL NOT ACCELERATE WHEN I STEP ON THE GAS PEDAL, WHICH ALMOST STALL BEFOR...

#7 AIRBAGS & SAFETY RESTRAINTSCritical Severity85% Match Confidence

Airbag Occupant Detection & Inflator Defect Reports

2
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$400 – $1,200 MazicBay Repair Intelligence Model
Recall Status:Under Investigation / Recall AuditNHTSA Campaign Audit
Reported Defect Symptoms
  • SRS Airbag warning lamp illuminated
  • Passenger occupant classification sensor failure
  • Seat belt retractor lockup
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (2)
ODI #11497682 • Filed: 12/16/2022

was struck in front right corner of truck and air bags did not deploy or the automatic braking system did not respond causing me to be thrown in to rearview mirror and breaking the windshiled and causing body harm to my head and spine

ODI #11308895 • Filed: 02/13/2020

A DUMP TRUCK CAME OFF OF THE HIGHWAY AND MADE AN ILLEGAL TURN IN FRONT OF ME. HE CAUSED A FRONTAL IMPACT ON MY VEHICLE AND THE AIR BAGS DID NOT DEPLOY. I WAS TRAVELING 55 MPH WITH A TRAILER ATTACHED AND SLAMMED ON BRAKES BUT STILL IMPACTED HIM REALLY HARD. I WAS ON THE FEEDER ...

Safety Enforcement

Official NHTSA Safety Recalls (5)

100% Free Dealer Repair
NHTSA Campaign #20V682000Reported: 04/11/2020

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Summary: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2018-2020 Lexus ES350, 2017 Lexus GS200t, 2017-2019 Lexus GS350, 2019 Lexus GS300, 2018-2020 Lexus LC500h, 2019-2020 Lexus LS500, 2018-2019 Lexus GX460, 2017 Lexus IS200t, 2019 Lexus IS300, 2019 Lexus IS350, 2018-2020 Lexus LC500, 2018 Lexus LS500, 2019 Lexus LS500h, 2018-2019 Lexus LX570, 2017 Lexus RC200t, 2019 Lexus RC300, RC350, 2017 and 2019-2020 Lexus RX350, 2018-2020 RX350L, 2019 Lexus UX200, 2018-2019 Lexus NX300 vehicles. The low-pressure fuel pump inside the fuel tank may fail.

Safety Consequence: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
Manufacturer Remedy: Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021. Owners of other models will be notified as remedy parts become available. Remedy parts should be available for all affected vehicles by late March 2021. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Note: This recall is an expansion of recall 20V-012. Toyota's number for this recall is 20TA02. Lexus' number for this recall is 20LA01.
NHTSA Campaign #21V920000Reported: 23/11/2021

STEERING:HYDRAULIC POWER ASSIST SYSTEM

Summary: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2008-2022 Sequoia and 2007-2021 Tundra vehicles. The power steering gear assembly may have been manufactured incorrectly, which can result in an oil leak.

Safety Consequence: An oil leak may cause a sudden loss of power steering assist, increasing the risk of a crash.
Manufacturer Remedy: Dealers will inspect and replace the power steering gear assembly as necessary, free of charge. Owner notification letters were mailed on January 21, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for this recall are 21TB10 and 21TA10.
NHTSA Campaign #21V688000Reported: 02/09/2021

EXTERIOR LIGHTING:HEADLIGHTS

Summary: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2021 Tundra vehicles. The headlight electrical circuits may power the high and low beams simultaneously, which could overheat the electrical connector.

Safety Consequence: An overheated electrical connector can increase the risk of a fire.
Manufacturer Remedy: Dealers will modify the engine wire harness assembly and replace any damaged bulb, bulb connector, and/or headlight assembly as necessary, free of charge. Owner notification letters were mailed April 25, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for this recall are 21TB06 and 21TA06.
NHTSA Campaign #20V410000Reported: 15/07/2020

EXTERIOR LIGHTING:TURN SIGNAL

Summary: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2020 Toyota Tundra vehicles equipped with LED headlight assemblies. Due to a wiring error, the front turn signals may not flash brightly enough. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."

Safety Consequence: If the turn signals or hazard lamps do not flash brightly enough, other drivers may fail to see that the turn signal or hazard lamp functions have been activated, increasing the risk of a crash.
Manufacturer Remedy: Toyota will notify owners, and dealers will modify the wire harness connected to the front turn signal bulbs free of charge. The recall began August 17, 2020. Owners may contact Toyota customer service at 1-800-270-9371. Toyota's number for this recall is 20TB12/20TA12.
NHTSA Campaign #21E103000Reported: 23/12/2021

STEERING:HYDRAULIC POWER ASSIST SYSTEM

Summary: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain JTEKT power steering gear assembly service parts for 2007-2021 Tundra and 2008-2022 Sequoia, part numbers 44250-0C160, 44250-0C131, 44250-0C170, and 11250-0C121. The power steering gear assembly may have been manufactured incorrectly, which can result in an oil leak.

Safety Consequence: An oil leak may cause a sudden loss of power steering assist, increasing the risk of a crash.
Manufacturer Remedy: Dealers will inspect and replace the power steering gear assembly, free of charge. Owner notification letters were mailed on February 17, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 21TH01.

Pre-Purchase Inspection Checklist for 2020 Toyota Tundra

Before purchasing a used 2020 Toyota Tundra, perform the following targeted inspections based on reported federal defect patterns:

1. Cold Start & Idle Diagnostics

Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).

2. Transmission Shift Quality Audit

Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.

3. Federal Recall Completion Check

Verify that all 5 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.

4. Electrical & Infotainment Drain Check

Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.

Frequently Answered Questions

Defect & Reliability Q&A: 2020 Toyota Tundra

Is the 2020 Toyota Tundra a reliable used car?

The 2020 Toyota Tundra earns a 6/10 MazicBay Reliability Index based on 45 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.

What is the most frequent defect reported on the 2020 Toyota Tundra?

The leading complaint category is Engine Stalling, Oil Consumption & Cooling Defect Reports, with a median failure point around 55,000 miles (IQR: 35,00075,000 mi).

Are there free recall repairs available for the 2020 Toyota Tundra?

Yes, the NHTSA records 5 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.