Transmission Control Module

Manages the operation of the transmission, ensuring proper shifting and performance.

The transmission control module (TCM) is an electronic control unit that manages the operation of the transmission, adjusting shift points and gear engagement based on driving conditions to optimize performance, fuel efficiency, and drivability.

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Typical part cost

$400–$1,000🔒

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Typical labor cost

$300–$600🔒

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Typically lasts

100,000–200,000 mi

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Or about

7.0–10.0 years

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DIY difficulty

7/10

⚠️ Owners Often Notice

If the Transmission Control Module is starting to fail, these are the signs owners most commonly report before it gets worse:

Difficulty shifting gears

Transmission slipping

Poor fuel efficiency

Check engine light

Related Services

Services commonly performed on or around this part.

Replace Transmission Control Module

No standard interval on file

Inspect Transmission Control Module

No standard interval on file

Test Transmission Control Module

No standard interval on file