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Problems with 2017 Toyota Tundra ELECTRICAL SYSTEM

On average, the 2017 Toyota Tundra starts to “feel” problems with the ELECTRICAL SYSTEM and its various aspects after 17 102 miles.

Components Affected by ELECTRICAL SYSTEM Issues

We have classified the 8 complaints from 2017 Toyota Tundra about ELECTRICAL SYSTEM into the following categories.

WIRING 1

Recently reported ELECTRICAL SYSTEM problems on 2017 Toyota Tundra

Driving at night with headlights on in auto position all lights shut off as if the switch was turned to off. this happens usually when turning. a tap on the turn signal stalk / headlight switch brings them back. impossible to recreate. this is very dangerous. this happens monthly.

Headlights flash or turn off when using the turn signals. dash lights also dim. seems to happen when i use the left turn signal. has happened several times. if i turn the switch to the off position then back they have turned back on.

When the signal stalk is placed on auto and it is clearly dark outside the headlights will intermittently turn off when putting the left turn signal into place. the lights will come back on when the signal stalk is back in the neutral position. this has happened while in motion, stationary, and at different outside temperatures. however, i have noticed this occurs more when the temperature is in the 40's.

With the headlight switch selected to 'auto' and when engaging the turn signal to the left durning night driving, all exterior and interior lights would go black until turn signal switch is moved to the on the position. vehicle was taken local toyota dealership service department to remedy the issue. initially, this dealership thought it was the light sensor located on the dash of the truck and replaced it using a warranty claim. almost immediately (next day), the vehicle repeated the same initial failure over 3 times in an hour. i made an appointment with that same toyota dealership but upon arrival i was met with resistance due to a previous warranty claim for the same issue. they advised me if i wanted the switch replaced, it would be totally at my expense. i left that dealership and proceeded to another toyota dealership who replaced the switch at my expense. the replacing of the switch has solved the lights going out while driving during the night. i've read on several truck forums that this is a known issue by toyota but they haven acknowledged it. luckily, i can afford to replace my switch to ensure my family is safe in this vehicle but my submission here is for those that can't afford the replacements and need toyota to issue a recall to fix this serious but inexpensive issue.

Tl* the contact owns a 2017 toyota tundra. the contact stated that rodents damaged the electrical system in the vehicle by eating the soy-based wires. the dealer (modesto toyota, 4513 mchenry ave, modesto, ca 95356, (209) 529-2933) diagnosed that the wiring and the wiring harness needed to be replaced, which was an extensive repair. the manufacturer was notified of the failure and stated that there was no warranty or recall for the failure. the vin and failure mileage were not available.

Tl* the contact owns a 2017 toyota tundra. the contact stated that the exterior and interior turn signals failed to illuminate when the turn signal switch was activated. the contact stated that the same failure occurred with the windshield wipers when the wiper switch was activated. the failures recurred numerous times. the vehicle was taken to bert ogden toyota (located at 8721 w expy 83, harlingen, tx 78552, (956) 622-4384), but the failures could not be duplicated. the vehicle was also taken to spartan toyota (located at 5701 s pennsylvania ave, lansing, mi 48911, (517) 394-6000), but they could not duplicate the failures. the vehicle was not repaired. the manufacturer was notified of the failures and opened case number: 1808292570. the approximate failure mileage was 15,000.

Tl* the contact's parents purchased a 2018 toyota tundra (na). while driving approximately 30 mph, a vehicle suddenly cut in front of the driver and caused a chain reaction of sudden stops with several vehicles. the driver rear ended the preceding vehicle. the air bags and toyota safety sense system failed to activate. the safety sense feature was supposed to stop the vehicle automatically due to objects (vehicle) being in close proximity at a fast rate. the front end of the vehicle had severe damage and was towed. the contact was unsure if a police report was filed. the driver received injuries to the neck and arm area, which required medical attention. the contact was not aware if the vehicle was totaled or able to be repaired. the contact was unaware if the dealer was informed. the manufacturer was not made aware of the failure. the vin was unknown. the approximate failure mileage was 1,000.

On july 8, 2017 we had just purchased a new 2017 tundra. we tow a 24 ft. rv trailer and we purchased this vehicle for that reason. one of the features this vehicle has is the integrated brake control system for towing. as we were headed home on state hwy. 42 near coos bay, oregon, i noticed blue smoke coming from the rear of the pickup. i wasn't sure what happened. i stopped as soon as i could and i couldn't locate the cause of the smoke. i later learned there has been many consumer complaints regarding the faultiness of this integrated brake system controller. i want this issue fixed so i can be assured of a safe trip when towing my rv trailer without the fear of having no trailer brakes when i need them or having them lock up for no reason. thank you

Mice are able to enter the air ventilation system from a large gap at the ends of the air intake grill below the windshield, once in, they enter the cab and dash area. these mice will damage the wiring and cause a vehicle system failure (braking-power-air bag, etc.) i have reported this to my dealer rochester toyota and toyota customer service (800-331-4331). the dealer has acknowledged that this is a issue and only suggestion was to put a scent in the cab to discourage the mice. this is serious manufacturing flaw that needs a retro fitted air intake grill to close off it's current gap that allow mice to enter the ventilation system. i have installed steel mesh to cover these large gaps (photos attached). a recall to correct this problem should be issued.

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