Will dashboard lights work with a bcm from car to in Buick rendezvous?

It's highly unlikely that dashboard lights from one Buick Rendezvous will work perfectly with the BCM (Body Control Module) from a *different* Buick Rendezvous. While they might be the same model year, even minor variations in wiring harnesses, BCM programming, and even bulb types can cause issues.

Here's why:

* BCM Programming: The BCM is the brain controlling many electrical systems, including dashboard lights. Each BCM is programmed specifically for the vehicle it's installed in. A BCM from a different car, even a seemingly identical one, may have different configurations that won't properly communicate with your car's dashboard lights.

* Wiring Harnesses: While the connectors *might* look the same, there could be differences in the wiring harness itself. A pin might be used for a different function on a different year or trim level. This can lead to incorrect signals or no signal at all to the dashboard lights.

* Bulb Types: Though less likely, there's a small chance the bulb types used in the instrument cluster might vary slightly between model years or trim levels, even if they appear identical.

In short: While you *might* get some lights working, it's far more likely you'll experience problems, including some lights not working at all, incorrect illumination, or even damage to the BCM or instrument cluster. It's best to use a BCM from a Rendezvous that's a precise match for your vehicle's year, trim level, and options.