Luckily for You, the well documented transmission problems of the Toyota Highlander do not extend as far back as 2006; they're mainly concentrated in newer model years. In general the transmission issues You'll be looking at with a 2006 Highlander include relatively simple things, like faulty sensors, leaking transmission fluid, and failed solenoids. There is no common issue that's often reported with the '06 transmission, but that doesn't mean that You're necessarily in the clear. You've got to remain vigilant for transmission fluid leaks, rough shifting, rough idles, and other symptoms of transmission problems. Since an automatic transmission is one of the most expensive repairs / replacements to make in a vehicle, You'll want to get out ahead of any issues while they still represent a relatively simple fix.
Elaine N
July 16, 2020
If the 2006 toyota highlander is having issues with the transmission then you will notice several problems, including shaking or grinding while driving, a burning smell when the vehicle is on, the gears slipping when you shift, the shifter becoming stuck or non responsive, and leaking fluids. This can all lead to a transmission failure which will more or less kill the vehicle.
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