Actually call resetToAbsolute()

src/main/java/frc/robot/generic/subsystems/drive/Drive.java

@@ -40,6 +40,7 @@
 import edu.wpi.first.wpilibj.DriverStation;
 import edu.wpi.first.wpilibj.DriverStation.Alliance;
 import edu.wpi.first.wpilibj2.command.Command;
+import edu.wpi.first.wpilibj2.command.Commands;
 import edu.wpi.first.wpilibj2.command.SubsystemBase;
 import edu.wpi.first.wpilibj2.command.sysid.SysIdRoutine;
 import frc.robot.Constants;
@@ -78,11 +79,14 @@ public Drive(
       ModuleIO blModuleIO,
       ModuleIO brModuleIO) {
     this.gyroIO = gyroIO;
+
     modules[0] = new Module(flModuleIO, 0);
     modules[1] = new Module(frModuleIO, 1);
     modules[2] = new Module(blModuleIO, 2);
     modules[3] = new Module(brModuleIO, 3);
 
+    resetModulesToAbsolute();
+
     // Usage reporting for swerve template
     HAL.report(tResourceType.kResourceType_RobotDrive, tInstances.kRobotDriveSwerve_AdvantageKit);
 
@@ -320,4 +324,14 @@ public double getMaxLinearSpeedMetersPerSec() {
   public double getMaxAngularSpeedRadPerSec() {
     return maxSpeedMetersPerSec / driveBaseRadius;
   }
+  // Reset ModuleIO to absolute position based on module array
+  // Made this a method for implementation into the SwerveBuilder class (that's also why it returns command not void)
+  public Command resetModulesToAbsolute(){
+    // Added getter as the code was a bit more readable than just manually reseting each instance
+    return Commands.runOnce(() ->{
+      for(Module module : modules) {
+        module.getModuleIO().resetToAbsolute();
+      }
+    }, this);
+  }
 }

src/main/java/frc/robot/generic/subsystems/drive/Module.java

@@ -133,4 +133,8 @@ public double getWheelRadiusCharacterizationPosition() {
   public double getFFCharacterizationVelocity() {
     return inputs.driveVelocityRadPerSec;
   }
+  // Gets moduleio instance
+  public ModuleIO getModuleIO(){ 
+    return io;
+  }
 }

src/main/java/frc/robot/generic/util/SwerveBuilder.java

@@ -75,6 +75,7 @@ public static Drive buildDefaultDrive(CommandXboxController driveController) {
                         drive.setPose(
                             new Pose2d(drive.getPose().getTranslation(), new Rotation2d())),
                     drive)
+                    .andThen(drive.resetModulesToAbsolute()) // Resets modules when button pressed
                 .ignoringDisable(true));
     return drive;
   }