Highlander 2012 cold acceleration issues

[lornalane]

Hello All.

Unfortunately 2012 is not turning out to be a good start for Highlanders. Confirmed Issue. When cold, the 2012 Highlander will not full throttle accelerate until the vehicle has warmed up. Go full throttle (to...uh...merge onto a highway) before gage is 1/8 tick above C and you are taking your life in your hands! Vehicle peaks at 3.5k max, then immediately drops to 2k and stays. Take foot off gass and try again...NO DOWNSHIFT at all. Pray an 18 wheeler isn't creaping up on you. Once the car warms up, no issues. Full throttle tack jumps to 6+, downshifts and rockets you forward.
Toyota has the data at corporate and "is aware of the problem". Evidently they are currently OK that we need to first warm our car up before we can drive it safely. I don't remember the disclaimer when I just bought the car that it needed to be warmed up before it can be driven safely.

[TrailDust]

Sorry to hear you're having problems with your Highlander, and that's coming from a fellow Highlander owner. I'll be interested to learn more from Toyota regarding the specifics of how that problem is occurring....sounds like the ECU may be the culprit.

Anyway, welcome to Toyota Nation! Hope you find a resolution to that issue that you can share with the other owners down the road.

[eyeball96]

to TN

[FlawedLegacy]

hope you can get that resolved!!!!