2017 Toyota Tundra electrical problems

Filed Jun 5, 2026 · Electrical · 200,000 miles · NC

Odometer Fraud. The contact purchased a 2017 Toyota Tundra. The contact discovered that there was a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of the purchase, the vehicle mileage was 95,000. It was later discovered upon checking the Carfax report the mileage was 200,000.

Filed Jan 7, 2025 · Electrical, Lights · NJ

Headlights go out randomly usually when using turn signal. Because this happens at night all visibility is lost temporarily. This also confuses other drivers. I haven’t taken the vehicle to the dealer because the symptom is very sporadic and difficult to duplicate. Dealerships will not fix anything unless they can witness the issue. No warning lights or messages were displayed. This problem has been documented numerous times by many different owners on Toyota Tundra forums.

Filed Feb 8, 2023 · Brakes, Electrical · AZ

Intermittent failure of the integrated trailer brake controller system. System indicates a frequent intermittent fault indicating a wiring or connection issue that disables the signal to activate the trailer brakes resulting in no trailer braking. Vehicle and trailer are available for inspection. I was travelling down a 6% grade mountain (Arizona SR87 MP224) an exhibited a loss of trailer brakes. Taking the trailer to the dealer on flat level service experienced intermittent loss of trailer brakes. Toyota Integrated Brake Controller (IBC) intermittently and randomly indicating a fault in the trailer wiring. •Rapid clicking of the IBC’s electrical relays. •In fault mode, the IBC disables the trailer brakes. •Sometimes the IBC works perfectly for miles and then goes into fault mode for an unknown reason. •Sometimes, the IBC goes into fault mode just plugging the trailer into the electrical socket without even taking the truck out of drive or depressing the brake pedal. •All external trailer lights include turn signals are functioning normally. Examination and diagnosis to date: •Toyota IBC was removed and replaced with a Tekonsha P3 brake controller using a Tekonsha wiring harness adapter to plug directly into the Tundra’s wiring harness used by the original Toyota IBC. The P3 is giving the error as brake circuit short-circuit, overload. •The travel trailer is a 2022 Jayco 212QBW, dual axle. •I brought the trailer to the dealer I purchased it from to have the brake system checked for faults. I’ve attached a copy of receipt from the dealer service department. In short, they examined the following and concluded the issue was with the Tundra. - The trailer wiring was physically examined with no deficiencies. - Trailer connected to the dealer's Chevy Silverado and driven around town with no faults. Toyota dealership claims they can find no fault with their tester. They would not use my 7-pin tester that also exhibits the same problems.

Filed Feb 2, 2023 · Electrical, Engine · GA

It is this issue. I just bought my truck at 83000 miles and toyota would not fix it since it is 3000 miles over the emission warranty.

Filed Jan 18, 2023 · Acceleration, Electrical · TX

As I am driving down the pickup loses power/ has no power. Was driving down the interstate and trying to make it up the Harbor bridge I could only go 40. Then try to pass a semi that (BAD DRIVER) was dangerously close, I could not even pass him. Not to mention people were angry at me and getting defensive. There were no warning lights, I took it in immediately. It has been inspected by my secondary warranty I purchased. ( Tripple Diamond 1‑833‑909‑0015 or 1‑844‑526‑0415 our policy # is [XXX] under [XXX] -So I take it to the Toyota Dealership in Corpus Christi Texas, They then tell me it is my Secondary air pump (both Sides) and Valves including Gasket, Air Tube, Pump Assembly, air, (2 both sides)/inlet, Air pump(1) and valve set, emission (1) That was on 12-16-2022 (it has been there since) this will cost me $3,205.38 out of pocket. But the real problem is that there is a long waiting list of people waiting for this same part, so no one can get it. Many people with the same problem last I called I was 44 people in line. I only have 75,000 miles on my truck, and still have the same tires That are in great shape (I rotate them) So for this to happen seems strange, I take special care of this truck. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Jun 25, 2022 · Electrical, Lights · NY

When driving at night, the front lights of the vehicle turn off randomly. Been driving on an highway at going at 75mph and randomly the headlights shuts off. Happened 4 times in the past year.

Filed Feb 10, 2022 · Electrical, Lights · PA

Headlights, taillights and all dash and interior lights go out when using turn signal at night. My and others safety has been put at risk due to the loss of headlights and taillights when engaging the turn signal. Those in my truck as well as those in surrounding vehicles are at risk because of the lack of exterior illumination while driving. Toyota dealer has not been able to reproduce the problem as the technicians do not work at night to drive the truck in the dark when headlights would be in use. Vehicle has not been inspected by any third parties just the dealership. There were no waring or messages or other symptoms of the problem before the failure. Problem first appeared in January 2022 and has occurred on over 6 occasions before truck was taken to dealership in February 2022. Truck was taken to dealership after lights went out at 70 MHP when signaling to exit highway at night.

Filed Jan 20, 2022 · Brakes, Electrical · AZ

Integrated Brake Controller (IBC) not sending sufficient power to electric dual-axle travel trailer brakes producing weak if any braking ability. On the approach to the first red traffic signal, there was zero braking from the trailer requiring full braking from the tow vehicle risking a crash. The IBC is providing no warning or failure indicators to the user. The vehicle and IBC are available for government inspection. The travel trailer in use is a 2022 Jayco Jay Flight SLX8 212QBW. While towing a 5,000 pound dual-axle travel trailer for the first time since I purchased the truck brand new from Toyota in 2017, I attempted to setup the IBC. Instructions say to set Type, which I set to electric brakes matching the trailer, then adjust the gain up while travelling around 25 miles per hours. When lock up of the trailer brakes occur, reduce the gain slightly to prevent full lock up. At a Gain of 10 (10 is the maximum), I could not achieve brake lock up and could only obtain weak trailer braking. The trailer was tested with a different tow vehicle and there were no problems obtaining lock up at mid-range gain. I had Toyota inspect the software updates to the IBC on January 14, 2022 and Toyota advised the IBC is up to date on its software and functioning correctly. The Tundra is out of factory warranty, but since I did not own a travel trailer during the warranty period, there was no way for me to test the IBC before going out of warranty.

Filed Sep 7, 2021 · Electrical, Lights · MA

Right headlight leveling motor failed causing headlight to point at the ground. I now have limited night time visibility on a 13,000 mi. vehicle. Toyota does not offer a replacement part nor do aftermarket sellers. A Youtube video of one of these dismantled motors shows a cheapest of the cheap device. Auto manufacturers should not be allowed to use cheaply made items to point headlights! Dealer refused warranty and wants $500+ for a new headlight that will last 13,000 mi. When the left side fails, I will no longer be able to drive at night. This is beyond absurd that a manufacturer is allowed to use the cheapest parts possible on a safety device such as a headlight.

Filed Apr 15, 2021 · Electrical · 27,000 miles · CA

The headlights and the interior lights turn off when I use the turn signals. This has happened several times since I had the truck, the last time this happened the lights were off for about 5 minutes. The truck is being looked at by the dealership but they can't recreate the issue. This is a safety problem