| Subject: | Radio Theft Light Inoperative After Radio Replacement and Programming |
| Models: | 2004-2007 Buick Rainier |
| 2002-2008 Chevrolet Trailblazer models |
| 2004-2008 Chevrolet Colorado Pick Up |
| 2002-2008 GMC Envoy models |
| 2004-2008 GMC Canyon Pick Up |
| 2002-2004 Oldsmobile Bravada |
This PI was superseded to update model years. Please discard PIT3528B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some owners may comment that the red radio theft LED does not flash after replacing and programming the radio. This may be due to the "enable counter" internal to the radio not being reset to 0 counts from the exchange center.
Recommendation/Instructions:
During normal driving, the counter will count down to 0 after enough ignition cycles. If an owner is requesting the LED to operate immediately, the ignition key will need to by cycled up to 255 times on/off to clear the manufactures "enable counter". To
count as a key cycle, the ignition must be left in the run and off positions for least 3 second each time. On then Off is considered to be 1 count.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
