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 ↗2013 Toyota Tundra electrical problems
severe Owners of the 2013 Toyota Tundra have filed 11 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 →
Complaints
11
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2011 Tundra | 18 |
| 2012 Tundra | 17 |
| 2013 Tundra (this page) | 11 |
| 2014 Tundra | 16 |
| 2015 Tundra | 7 |
| 2016 Tundra | 25 |
| 2017 Tundra | 27 |
1fire
When does it fail?
Of the 11 electrical complaints filed for the 2013 Toyota Tundra, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
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.
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.
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 ↗TT: Some customers may encounter Bluetooth® connectivity concerns such as: ?Difficulty to pair the phone. ?Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ?Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
full bulletin at NHTSA ↗TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Service Bulletin No. T-SB-0012-13 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated
full bulletin at NHTSA ↗TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone. ? Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ? Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
2013 Tundra owners describe several distinct electrical failures. The most severe involves the secondary air injection (SAI) pump system: two owners reported abrupt power loss at highway speeds (70 mph down to 40 mph), triggering check engine lights and diagnostic codes P0418, P1604, C1241, P2445, P2441. One owner faced a $3,000+ repair bill and claims Toyota denied coverage despite acknowledging defective air pumps in thousands of vehicles. Another owner's truck caught fire at 60 mph with flames from fuel lines and engine compartment at 40,000 miles; cause undiagnosed.
Door lock actuators fail intermittently—remote locking and unlocking malfunction, requiring multiple cycles or manual operation. Repairs quoted at $1,200 and not covered under recall. One owner reports this happens only when parked with engine off.
Horn failures are common: three owners report horns inoperative via steering wheel (though one works via panic button), with one noting his 2014 Tundra operates intermittently. No recalls listed.
Backup camera cuts in and out, showing blue screen in reverse, worsening in rain.
Rodent damage to wiring is widespread: mice chew soy-based wire coating in the engine bay, requiring repairs costing $200–$6,500. Dealers acknowledge the design flaw; not warranty-covered. Two fleet trucks suffered complete harness destruction.
Engine and traction control lights flash intermittently while driving.
Same Toyota Tundra electrical reports on nearby years: 2011 · 2012 · 2014 · 2016
Failure modes owners describe
Secondary Air Injection (SAI) Pump System Failure
Faulty SAI pump causes abrupt engine power loss on highway driving, reducing maximum speed to 40 mph and triggering check engine light. Owner reports Toyota acknowledged defective pumps in thousands of 2013 Tundras but denied coverage for his VIN despite recall program for similar vehicles.
When: 60,000 miles; two separate incidents on freeway
Symptoms owners cite: loss of engine power on freeway; unable to accelerate past 40 mph; check engine light; limp mode operation
Codes mentioned: P0418, P1604, C1241, P2445, P2441
Repairs/costs cited: Toyota dealership quoted $3,000+ for pump and related components; Toyota offered $750 toward parts, leaving owner $2,000+ out of pocket.
Recalls/TSBs owners mention: Toyota denies VIN qualification for recall despite known defective SAI pumps in 2013 Tundra population
Engine Fire
Undiagnosed fire with flames visible from fuel lines, engine compartment, and under vehicle near rear windows while driving at highway speed.
When: 40,000 miles
Symptoms owners cite: flames from fuel lines; flames from engine compartment; flames under vehicle near rear windows
Repairs/costs cited: Vehicle towed; not diagnosed or repaired
Recalls/TSBs owners mention: Manufacturer notified; no resolution documented
Door Lock Actuator Failure
Intermittent failure of front door lock actuators, causing remote lock and unlock commands to malfunction. Affects driver and passenger doors on rotating basis over months.
When: Not specified; occurs over 6–8 months in parked vehicle with engine off
Symptoms owners cite: remote unlock fails; remote lock fails; requires multiple cycles to lock all doors; driver door locks only manually; fails in all weather conditions
Repairs/costs cited: Toyota dealer diagnosis: both front door lock actuators defective; $1,200 repair estimate
Recalls/TSBs owners mention: No manufacturer recall for lock actuators
Horn Inoperative via Steering Wheel
Horn does not function when pressing steering wheel, though panic button may trigger horn in some cases. Three owners report this; one notes his 2014 Tundra exhibits intermittent horn operation.
When: 130,000 miles reported in one case; one owner believes failure present since purchase
Symptoms owners cite: horn does not sound via steering wheel press; horn works via panic button only (one case); horn intermittent (2014 model)
Repairs/costs cited: Repair estimate provided to one owner; not repaired
Recalls/TSBs owners mention: No recalls related to horn failure; manufacturer notified in at least one case
Backup Camera Intermittent Operation
Backup camera displays blue screen or cuts in and out when in reverse, worsening during rain or wet conditions.
When: Not specified
Symptoms owners cite: camera cuts in and out; blue screen display in reverse; worsens in rain
Repairs/costs cited: Owner checked connections; cause unresolved
Engine and Traction Control Light Flashing
Engine, traction control, and 4WD low lights flash intermittently while driving.
When: Not specified
Symptoms owners cite: check engine light flashing; traction control light flashing; 4WD low light flashing
Rodent Damage to Engine Wiring Harness
Mice chew soy-based coating on engine wiring harness in parking lots, destroying insulation and causing shorts. Reported across multiple trucks in a 35-truck fleet and by individual owners. Dealers acknowledge design flaw and profit from repairs.
When: As early as 3,300 miles; occurs in parked vehicles
Symptoms owners cite: chewed wiring insulation; engine wiring harness destroyed; shorts causing check engine light; engine will not start; potential steering, brakes, throttle, and lighting failures
Repairs/costs cited: Fleet repairs: $6,500 per truck; individual owner: $200+ per repair. Soy-based pipe wrap coating attracts rodents.
Recalls/TSBs owners mention: Dealers aware of problem; not warranty-covered; Toyota uses soy-based wire coating known to attract rodents
Synthesized from 11 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
The contact owns a 2013 Toyota Tundra. The contact stated that the horn failed to operate as needed. The vehicle was taken to an unknown dealer where the contact was informed that there were no recalls on the VIN related to the failure. The contact was provided an estimate for the repair. The manufacturer was notified of the failure, and the contact was provided the same information as provided…
On two different occasions I was driving my tundra on the freeway at approx. 70 MPH. My truck lost power and I almost caused accidents on both instances since I could not accelerate past 40 MPH. I had to manage my way out of the freeway to a safe place. 2two diagnostics were performed and I received codes p0418, p1604, c1241, p2445, p2441. I was told by the Toyota dealership that there was a…
Had electrical trouble with your 2013 Toyota Tundra?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2013 Toyota Tundra?
It's a meaningful issue. 11 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 11 complaints filed, electrical issues most often appear around 84,807 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.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2013/Toyota/Tundra.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.