diff --git a/docs/Config_checks.md b/docs/Config_checks.md
index e45964a0..628719e2 100644
--- a/docs/Config_checks.md
+++ b/docs/Config_checks.md
@@ -115,6 +115,29 @@ turns in the correct direction. If it does not, see the
 troubleshooting tips in the previous section to confirm the
 "enable_pin", "step_pin", and "dir_pin" settings for the extruder.
 
+### Calibrate PID settings
+
+Klipper supports
+[PID control](https://en.wikipedia.org/wiki/PID_controller) for the
+extruder and bed heaters. In order to use this control mechanism it is
+necessary to calibrate the PID settings on each printer. (PID settings
+found in other firmwares or in the example configuration files often
+work poorly.)
+
+To calibrate the extruder, navigate to the OctoPrint terminal tab and
+run the PID_CALIBRATE command. For example: `PID_CALIBRATE
+HEATER=extruder TARGET=170`
+
+At the completion of the tuning test, update the printer.cfg file with
+the recommended pid_Kp, pid_Ki, and pid_Kd values.
+
+If the printer has a heated bed and it supports being driven by PWM
+(Pulse Width Modulation) then it is recommended to use PID control for
+the bed. (When the bed heater is controlled using the PID algorithm it
+may turn on and off ten times a second, which may not be suitable for
+heaters using a mechanical switch.) A typical bed PID calibration
+command is: `PID_CALIBRATE HEATER=heater_bed TARGET=60`
+
 ### Next steps
 
 This guide is intended to help with basic verification of pin settings