Symptoms Of a Bad Shift Interlock Solenoid

A manual transmission system that is constantly changing and evolving over time now has an interlock solenoid. This was included in your manual transmission system as a safety measure to prevent accidentally shifting into drive. It is reasonable to have a switch that maintains stop mode even if the brake pedal is not depressed. That makes logical because slamming the shifter out of stop while releasing the brake could cause real injuries and accidents. Electric currents move through cylindrical coils of metal wire called solenoids. It is impossible to move from Park to Drive without first applying the brake thanks to the shift interlock solenoid. You can move the shifter thanks to the solenoid in the interlock system.

If the shift interlock solenoid has gone bad, the vehicle will not shift out of the park, even with your foot on the brake pedal. You won’t be able to drive your car anywhere, which is a significant concern. The majority of cars include a shifter release in case this happens.

Well, in this Article, I’ll be discussing the symptoms of a bad shift interlock solenoids.


What are the symptoms of a bad shift interlock solenoid?

The Vehicle Will Not Shift Out of the Park

The Vehicle Will Not Shift Out of the Park

Even with your foot on the brake pedal, the car won’t move out of the park if the move interlock solenoid is faulty. The fact that you won’t be able to drive anywhere makes this a major problem. Most cars have a shifter discharge in case this happens. The shifter interlock solenoid is most likely to blame if the shifter discharge button is discouraged and the shifter can be moved. In this case, have your move interlock solenoid replaced by a qualified technician.

Skipping gears

Additionally, you could observe that your car skips to the next gear when it has trouble engaging specific ratios. This is a clear indication that your transmission shift solenoid is malfunctioning. Each gear has one or more shift solenoids, and if one of them breaks, it won’t shift to that gear. Instead, it will shift right into the following gear.

Shifting delays

The transmission may shift very slowly if the transmission control unit detects any shift solenoid issues. Both upshifting and downshifting fall under this.

Battery Of Your Vehicle Is Dead

In case your vehicle isn’t moving out of the park, another reason it may not be working is the battery is inactive. This is usually a simple thing you can verify before contacting any automotive specialist. It’s likely a dead battery issue rather than a problem with the move interlock solenoid if your car won’t start at all, none of the lights work, and none of the electrical components are functioning. Usually important to remember because it can save you a lot of inconvenience and time. You only need to change your battery, which a worker can help you with. After the battery has been bounced, if the car still won’t go from stop to drive, it’s time to check the interlock solenoid.

Related Article:

Symptoms of a bad Transmission Shift Solenoid


A damaged shift interlock solenoid, a vital part of automatic transmissions, can cause a variety of challenging symptoms, such as making it difficult to move the gear lever out of the “Park” position, stopping the brake lights from turning on when the brake pedal is depressed, making it difficult to change gears, possibly leaving the car in neutral or other positions, occasionally allowing shifting out of “Park,” and more.

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