The powertrain control module (PCM) in your Jeep Wrangler acts as your engine's brain. Here's where it can cause problems, and how to fix them.

An issue with the powertrain control module software has prompted Stellantis to recall 131,700 of its Ram 1500 pickup trucks.

Read the Chevy High-Performance tech article on How to Program an OBD-II Powertrain Control Module.

The General has issued a Service Bulletin describing an available fix for a powertrain control module issue on some 2020 through 2022 Chevy Bolt EV and 2022 Chevy Bolt EUV units.

The remedy was a software update for the powertrain control module (PCM), which we had performed in December 2023. Presumably, our truck now produces its optimal levels of emissions.

The affected vehicles did not have the Powertrain Control Module (PCM) updated as intended. Therefore, the Canister Purge Valve (CPV) may malfunction, possibly causing excessive vacuum in the fuel ...

“The powertrain control module software may cause an incorrect fuel mixture condition in the engine and result in an engine stall," according to one document posted recently on the NHTSA site.

Ford Motor Company (Ford) is recalling certain 2019-2020 Mustang vehicles equipped with 5.0L engines and manual transmissions. The Powertrain Control Module (PCM) may broadcast an unintended ...

These sensors work in tandem to send the powertrain control module (i.e., the computer that manages the engine and transmission) the speed difference between the engine crankshaft and the ...

The fix: Dealers will replace the powertrain control module on affected vehicles, free of charge to owners. How to contact the manufacturer: The recall is expected to begin Sept. 28.

The problem: The powertrain control module (PCM) software may cause an erroneous air-fuel mixture that’s too rich, which could shut down the engine.