On these GMT360 platform vehicles like the Envoy and Trailblazer, the PCM is tightly integrated with the vehicle’s security system (GM’s Passlock). If you’re experiencing any of the following, this module is the solution you’ve been looking for.
On these GMT360 platform vehicles like the Envoy and Trailblazer, the PCM is tightly integrated with the vehicle’s security system (GM’s Passlock). If you’re experiencing any of the following, this module is the solution you’ve been looking for.
One of the biggest hurdles when replacing a PCM on a GM vehicle like your Trailblazer is the PassLock or PassKey anti-theft system. In most cases, you will simply need to perform a straightforward security relearn procedure which takes about 30 minutes with just the ignition key.
It’s shifting hard and unpredictably. They’ve already replaced sensors, maybe even flushed the fluid. The real culprit?. Before you spend thousands on a transmission rebuild, always consider the vehicle’s brain.