Diagnostic Aids
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the auxiliary mode door and the auxiliary mode actuator for the following conditions:
- A misaligned auxiliary mode actuator.
- Broken or binding linkages or auxiliary mode door.
- An obstruction that prevents the auxiliary mode door from operating within its full range of motion.
- Missing seals to the auxiliary mode door.
- Misaligned seals to the auxiliary mode door.