Alternator/generator/regulator Problems of Toyota Highlander

Toyota Highlander owners have reported 5 problems related to alternator/generator/regulator (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota Highlander based on all problems reported for the Highlander.

1 Alternator/generator/regulator problem of the 2010 Toyota Highlander

Failure Date: 04/06/2025

The contact owns a 2010 Toyota Highlander. The contact stated that while driving 40 mph, the vehicle lost automotive power and started to drift to the right side of the road. The brake pedal was depressed, and the vehicle was able to come to a complete stop. The contact mentioned she waited for aaa for roadside assistance. The vehicle was towed to an independent mechanic, where it was diagnosed alternator needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure but offered no assistance. The failure mileage was approximately 185,420.

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2 Alternator/generator/regulator problem of the 2017 Toyota Highlander

Failure Date: 10/06/2019

The vehicle stalled twice on me at a red light. No power to steer. This both happened at a city near washington DC. Had my battery and alternator checked . Both came back as in great condition. Almost got hit twice from behind cause of the stalling.

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3 Alternator/generator/regulator problem of the 2012 Toyota Highlander

Failure Date: 03/10/2017

While driving at highway speeds and exiting a highway, approximately 50 mph, the steering wheel locked up, dashboard flickered, and engine died. The red steering wheel warning light came on briefly, but the wheel could not be turned for several seconds. This happened 3 times in the period of a few minutes. Battery & alternator were tested - no malfunction.

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4 Alternator/generator/regulator problem of the 2015 Toyota Highlander

Failure Date: 06/01/2015

Light on cruise control lever on steering column flickers off and on if vehicle is in motion and steering column is in use. Alternator in car already required replacement at 73,000. Dealership was advised of issue and I was told there was nothing wrong with the lever.

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5 Alternator/generator/regulator problem of the 2005 Toyota Highlander

Failure Date: 09/08/2011

Car loss control due to electrical power is gone. Car loss speed at 45mph and has to pull over and stop. Diagnosis latter found battery is good, but alternator is bad. In my case, battery was replaced 2 years ago.

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Other Common Electrical System related problems of Toyota Highlander



Safety Ratings of Highlander Cars
Fuel Economy of Highlander Vehicles
Highlander Service Bulletins
Highlander Safety Recalls
Highlander Defect Investigations