Question about 2003 GMC Yukon Denali
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
The first place to start is to have Ride Control Module scanned for trouble codes, this requires a high end scan tool. Most common problem is the air compressor in the rear or a height sensor. Here is how the system works.
Automatic Level Control Description and Operation
The RTD system is bi-state real time damping system. The Suspension Control module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system and electronic variable orifice (EVO) power steering system.
The Automatic Level Control system consists of the following:
• Suspension Control Module
• Compressor/Leveling Module
- Air Pressure Sensor
- Exhaust Solenoid
• Compressor Motor Relay
The objective of the Automatic Level Control System is to provide constant ride height at all load conditions. The Suspension Control module monitors body-to-wheel height, and vehicle speed.
The Suspension Control module will use the rear body-to-wheel displacements and vehicle speed inputs to keep the rear trim height of the vehicle at its desired level.
The electronic suspension control (ESC) system is bi-state real time damping system. The ESC module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system, if 1500 series.
The ESC system consists of the following:
• The ESC module
• The compressor/leveling module, if 1500 series
- The air pressure sensor, if 1500 series
- The exhaust solenoid, if 1500 series
• The compressor motor relay, if 1500 series
• The steering handwheel speed/position sensor
• The suspension damper solenoids
• The suspension position sensors
Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.
Thank you for using Fixya, and have a nice day.
Posted on Nov 16, 2011
it has to do with your air ride suspension best bet is take it to the dealer there is probably a problem with a level sensor. hope this helps you
Posted on Mar 16, 2009
Tips for a great answer:
Feb 15, 2014 | 2005 GMC Yukon Xl Denali
Mar 25, 2013 | 2002 GMC Denali
Aug 30, 2011 | 2003 GMC Yukon Denali
Dec 01, 2010 | 2006 GMC Yukon Denali
Aug 17, 2010 | 2002 GMC Yukon Denali
May 20, 2010 | 2001 GMC Yukon Denali
Feb 26, 2010 | 2006 GMC Yukon Xl Denali
May 03, 2009 | 2006 GMC Yukon Xl Denali
Mar 16, 2009 | 2005 GMC Yukon Xl Denali
Jun 15, 2008 | 2004 GMC Yukon
Feb 19, 2018 | 2003 GMC Yukon Denali
2,024 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: