How do you replace a wiper motor for a 2006 trailblazer?

To replace the wiper motor on a 2006 Trailblazer, first disconnect the negative battery cable to ensure safety. Remove the wiper arms by removing the nuts that secure them, then lift them off the motor shafts. Next, remove the screws or bolts securing the wiper motor to the firewall, disconnect the wiring harness, and replace it with the new motor. Finally, reassemble everything in reverse order, ensuring the wiper arms are properly aligned before securing them back in place.