2023 Toyota Highlander Cruise Control Problems

Your car's acceleration is unpredictable and dangerous—it either responds slowly and jerkily or suddenly surges forward with excessive force. You lose control over how the car accelerates, whether you're starting from a traffic light or trying to avoid a collision. This issue affects both the engine and speed control systems and could lead to an accident. The fix will likely involve diagnosing the throttle control system, fuel delivery, and engine sensors to identify why acceleration is inconsistent.

Your 2023 Highlander jerks, hesitates, and has RPMs that jump around when you use 87-octane fuel, especially in warm weather with the air conditioning on or when accelerating from a stop. The engine feels like it's cutting out at intersections, creating a safety risk. Using 93-octane fuel eliminates the problem, but this issue has persisted since 500 miles and continues at over 13,000 miles despite dealer visits that found no error codes. The fix may involve fuel system cleaning, engine tuning adjustments, or software updates to improve fuel quality tolerance.

Your check engine light came on, and when you pressed the accelerator, the engine hesitated and misfired. Several other warning lights also appeared on your dashboard. The dealer found sludge buildup in your engine and changed the oil, which reset the lights temporarily. However, the dealer said the exhaust camshaft sensor and oil pan assembly need to be replaced to fully fix the problem. This happened at around 2,000 miles.

Your car is slow to accelerate and jerks or shakes before it starts moving smoothly. This delayed response and rough behavior during acceleration may indicate an issue with how your engine or transmission is delivering power to the wheels.

Your car hesitates or accelerates unevenly when starting from a stop. The issue was completely resolved by reprogramming the engine control module (ECM) at the dealership. This problem may affect other vehicles of the same model year and should be addressed through a software update.

I have a 2023 Toyota Highlander Platinum. For some unknown reason, the dashboard suddenly stopped working. Because the dashboard is not working, I have no information on things like when the gas will run out, what speed I’m driving, or if any parts are malfunctioning.