How to Reset Transmission Control Module Chevy?

Are you frustrated with your Chevy transmission? Do not understand what to do with it? Don’t worry. Resetting the Chevy transmission control module (TCM) is not a difficult task. First, you need to get some idea about Chevy transmission.

This article introduces the simplest solution to reset the Chevy TCM. Through extensive research, we are going to discuss for your convenience the symptoms of a bad TCM, the cost of replacing it, the method of replacing it, etc.

Signs of a Bad Transmission Control Module Chevy

When you see the following symptoms in your Chevy, you should understand that there is a problem with the TCM.

  • Check Engine Light;
  • Poor fuel economy;
  • Unpredictable shifting;
  • Car stucks in neutral or first gear;
  • Problems shifting at higher speeds;
  • Not shifting gears;
  • Downshifting problems;
  • Delayed shifting.

Cost of Replacing a Bad Transmission Control Module Chevy

The cost aspect should be considered before taking any action on automotive issues. Replacing the Chevy TCM may cost you around $500- $1000. However, with the benefit of a discount, you can reduce the cost to $400- $700.

How to Reset Transmission Control Module Chevy?

Most Chevy users are concerned about resetting TCM. But in reality, this is not the case because you can accomplish this with just a few simple steps. The steps are described below.

Stage 1: Turn the Key Position

To reset TCM, the first thing you need to do is change the key position. Turn the key position to 2. Then go back to your Chevy’s dashboard and check if the lights are visible. If the answer is positive then the next step is to proceed. 

Note that there is no need to start the car by pressing the accelerator in this step. After turning the key there will be two clicks and the lights on the dashboard will light up.

Stage 2: Press the Gas Pedal

Now your job is to hold the gas pedal. Hold the pedal down with your feet. If you hold down the accelerator pedal, it will activate the kick-down switch. In this case, you need to trigger the kick-down switch. 

When doing all this, be sure not to step off the gas pedal. If you remove the foot from the gas pedal, the process will fail. Now you have to wait for about 10 minutes. 

While waiting, be careful not to get your foot off the gas pedal. The gas pedal will start working in 10 to 12 seconds. All you have to do is press the pedal and wait.

Stage 3: Turn Off the Key

So now you have to deal with the key again. We’re repeating, don’t get off the gas pedal. Hold down the pedal and turn the key. That means the key is currently in position 2, and from there turns back to the previous position. 

As usual, you may take the key off immediately after turning it off. But in this case, it cannot be done, that is, the key cannot be taken out after bringing it to zero. 

However, there may be some exceptions to this rule in the model. In some Chevy models, such as the 2000 Chevy Silverado, the whole process will fail if the key is removed while resetting the TCM.

Stage 4: Release Gas Paddle

Finally, it’s time to take your feet off the gas pedal. After bringing the key back to zero you can remove the pressure from the pedal by removing your foot. Remember that you can remove the pressure from the gas pedal as soon as you bring the key to zero or you will have to repeat the whole process from the beginning. 

Many people ask whether it is necessary to reset a new TCM after installing it. YES, because resetting the whole TCM runs without any errors. Now you have to wait again. Give your chevy time after removing the foot from the gas pedal. 

Don’t be impatient because with more time TCM will be reset more successfully. All in all, make sure your chevy takes 2 to 3 minutes to rest. Also, make sure that the key is in the left position of the ignition, that is, in the off position. Do not move the key while waiting.

Stage 5: Test Drive the Chevy

OK, you’ll be glad to know that your Chevy’s TCM reset is nearing completion. Now when driving, both its Engine Control Unit (ECU) and Transmission Control Unit (TCU) will work together because you have done both. 

The two units will carefully monitor your driving pattern and strategy. Many Chevy users wonder how important it is to have a TCM program. The answer is very important. You need to program at both TCU and ECU. When done, you need to drive carefully. 

In the initial stage, it is okay to drive for 15 to 20 minutes. At this time, you have to keep in mind that you are driving the car and training the engine. So do not drive in a hurry but maintain a decent speed. 

In a word, maintain normal driving speed. Be sure to choose the smooth transmission so that the transmission can be transferred effortlessly.

Will a Bad Transmission Control Module Chevy Throw a Code?

The answer is yes. If you scan the system with an OBD-II scanner to check TCM, it will show error TCM codes like P0706, P0700, P0613, etc.


After reading our extensively researched article, we hope you have a clear understanding of how to reset the transmission control module on a Chevy. You Just need to be a little careful and the steps have to be followed properly.

This whole process takes a maximum of 25-30 minutes- 15 minutes to reset and 15 minutes to drive. Then we hope there will be no more transmission-based problems if you use your key carefully.

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