Engine Will Not Crank Due To A Dead Battery Caused By Radio Remaining Powered Up (Reprogram Radio)
| Subject: | Engine Will Not Crank Due To A Dead Battery Caused By Radio Remaining Powered Up (Reprogram Radio) |
| Models: | 2008 Chevrolet Colorado |
| 2008 Chevrolet TrailBlazer Models |
| 2008 GMC Canyon |
| 2008 GMC Envoy Models |
| with Uplevel MP3 Radio/Receiver (RPO US8) |
This bulletin is being revised to add an important statement. Please discard Corporate Bulletin Number 08-08-44-012A (Section 08 -- Body & Accessories).
Built Prior to the Following VIN Breaipoints:
Make/Model | VIN Breakpoint |
|---|---|
Chevrolet Colorado | 88209296 |
Chevrolet TrailBlazer | 82224326 |
GMC Canyon | 88209296 |
GMC Envoy | 82224408 |
Condition
Some customers may comment that the engine will not crank. Technicians may find that the vehicle's battery is dead or in a low state of charge.
Cause
This condition may be caused by the radio remaining powered up, after the ignition is turned off, waiting for a CD player auto-reload to be completed, resulting in a battery draw.
Correction
Do This | Don't Do This |
|---|---|
Reprogram the radio. | Do NOT replace the radio or Body Control Module (BCM). |
Important: If a parasitic load test is performed after the radio reprogramming is completed, it is important to realize that the BCM may stay awake for up to 45 minutes after the key is removed from the ignition.
A revised calibration has been developed to address this condition. Technicians are to reprogram the radio using SPS with the latest software available on TIS2WEB. Refer to the Service Programming System (SPS) procedure in SI for more information. As always make sure your Tech 2® is updated with the latest software version.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
R0759 | Radio Reprogramming with SPS | Use Published Labor Operation Time |
