Toyota Highlander Transmission Overheating: Causes and Diagnosis

Transmissions are an integral part of any vehicle, and overheating can lead to costly repairs or even permanent damage. Toyota Highlander owners should be aware of the common symptoms and causes of transmission overheating to prevent potential issues and ensure their trucks remain strong and reliable. In this article, we will discuss the common causes … Read more

Toyota Highlander: SRS On Diagnosis

  When you start your Toyota Highlander, the OBD-II system runs a self diagnostic check on all major systems.  If any of these checks fail, you will see a diagnostic warning light on the dash for the corresponding system.  When the SRS system fails this check, you’ll see the SRS light.  SRS stands for supplemental … Read more

Toyota Highlander Radiator Leak: Symptoms, Causes, Fix

A leaking radiator in a Toyota Highlander can cause the vehicle to overheat, leading to expensive engine damage if not addressed in a timely manner. The long-term effects of a leaking radiator can be significant, including a bad head gasket or a cracked head. Identifying the symptoms of a radiator leak in your Highlander will … Read more

Toyota Highlander Leaking Heater Core Diagnosis

One of the most common problems that can happen to a vehicle is a heater core leak.  If your Toyota Highlander has a leaking heater core, it is not a breakdown risk.  Although, it is necessary to make sure that the lost coolant is replaced.  It can cause damage to the vehicle in other ways, … Read more

Toyota Highlander Bad Starter → Symptoms & Diagnosis

  One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Toyota Highlander.  It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your Highlander is not starting, don’t assume right away … Read more

Toyota Highlander: P0720 → OSS Circuit → Malfunction

P0720 is a generic OBD II trouble code, which means that it has the same meaning for your Toyota Highlander as it would any other vehicle.  It indicates that your Highlander’s OSS (Output Shaft Speed Sensor) is reporting a malfunction. It’s typically caused by a bad OSS, or a wiring problem. The OSS works by … Read more

Toyota Highlander P0108:  MAP Barometric Sensor → High Input 

  P0108 is a generic OBD-II trouble code.  It indicates your Toyota Highlander’s MAP (manifold absolute pressure) sensor’s voltage reading is outside of the normal operating range.  The voltage is too high.  It’s most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming into … Read more

Toyota Highlander P0443 Code: Meaning, Causes, How To Fix

P0443 is a very common OBD2 code.  It’s generic, meaning it has the same definition for the Toyota Highlander as any other vehicle.   If your Highlander has this code, it indicates the EVAP purge control valve circuit is malfunctioning. This is typically caused by a short in the wiring to or from the purge … Read more