Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low.
full bulletin at NHTSA ↗2019 Toyota 4Runner electrical problems
severe Owners of the 2019 Toyota 4Runner have filed 8 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
| Model year | electrical complaints |
|---|---|
| 2015 4Runner | 12 |
| 2016 4Runner | 17 |
| 2017 4Runner | 5 |
| 2018 4Runner | 4 |
| 2019 4Runner (this page) | 8 |
| 2021 4Runner | 3 |
When does it fail?
Of the 8 electrical complaints filed for the 2019 Toyota 4Runner, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
No new NHTSA electrical complaint has been filed on this vehicle in over 4 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
full bulletin at NHTSA ↗DP: The Data Communication Module (DCM) in the subject vehicles are equipped with software to identify the location of the vehicle using the Global Positioning System (GPS) to support features of the Safety Connect system. Due to incorrect programming in the DCM software, after November 2nd, 2019, the GPS coordinates for this system will be calculated incorrectly. This will cause the system to use incorrect vehicle coordinates if one of the system?s features is activated.
full bulletin at NHTSA ↗TI: TECHNICAL INSTRUCTIONS FOR LIMITED SERVICE CAMPAIGN K0P CUSTOMER SUPPORT PROGRAM 19TE12 SAFETY CONNECT SYSTEM ? VEHICLE LOCATION INACCURATE CERTAIN 2013 ? 2019 MODEL YEAR 4RUNNER 2011 ? 2017 MODEL YEAR LAND CRUISER 2013 ? 2017 MODEL YEAR PRIUS 2012 ? 2017 MODEL YEAR PRIUS V 2016 ? 2017 MODEL YEAR MIRAI Updated 010/25/2023
full bulletin at NHTSA ↗TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
My 2019 Toyota 4Runner was inhabited by a rat that chewed the wiring harness in at least 3 different areas. The damage occurred between 8pm and 7am. The vehicle started with lights on the dash illuminated. The car was out into drive and was jerking. Reverse had the same result. After inspecting under the hood of the car wires were seen chewed partially and a few completely severed. A…
The contact owns a 2019 Toyota 4Runner. The contact stated that the vehicle would not start. There were no warning lights illuminated. The contact waited an hour and was able to restart the vehicle. The vehicle was not diagnosed by an independent mechanic or the dealer. The contact stated that while her mother was driving 5 MPH, she heard abnormal grinding sounds, and the vehicle inadvertently…
The contact owns a 2019 Toyota 4Runner. The contact stated that while driving at an undisclosed speed, the instrument cluster displayed a blank screen. The contact stated that the failure also occurred while reversing. In addition, the radio volume independently adjusted up and down independently, and independently powered off independently. The vehicle was not diagnosed or repaired by an…
Common questions
How serious is the electrical problem on the 2019 Toyota 4Runner?
It's a meaningful issue. 8 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 8 complaints filed, electrical issues most often appear around 23,333 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.