Question

Why is the VTM-4 light on in my Honda Pilot?

The VTM-4 mechanism kicks in whenever your Honda Pilot is stuck or in danger of getting stuck. 

VTM-4 is Honda’s Variable Torque Management 4-wheel-drive system. The VTM-4 system controls the level of torque to the rear wheel of your car in situations where additional traction is needed to get your car out of the terrain. 

A glowing VTM-4 light essentially means that the torque management system of the car is now active to help the car traverse the difficult terrain it has come across. Therefore, there is no need to panic about it. 

However, if the VTM light continues to glow despite the car being in a normal road/track condition, it indicates that the VTM-4 lock is engaged. If so, you could seriously damage the rear differential while taking turns. There will also be vibrations and strange noises in the vehicle as a result. 

The VTM light can also turn on due to under-inflated tires, faulty knock sensors, or rear differential damage. It can also light up due to emission errors. In this case, replacement of the EGR valve is usually sought.  

Damage to the knock sensors near the intake manifold area usually occurs due to animals nesting there. Therefore, remember to keep an eye on that area.