Electrical, wiring and powerModel years 2003–2005Manufacturer
Red radio theft LED does not flash (manufacturer's counter not reset at assembly)
The article is worded by class: 2003-05 Chevrolet, GMC, Cadillac and Hummer H2 full size trucks and utilities.
FaultCrate・Red radio theft LED does not flash (manufacturer's counter not reset at assembly)
Starting with the 2003 model year, owners no longer enter a security code into the radio to activate the theft feature; it works automatically by learning a portion of the VIN.
During assembly of the radio a manufacturer's counter is set at 255 counts and should be set to 0 at the end of assembly; if the counter is not set to 0, the radio LED will not flash.
Each cycle of the ignition switch reduces the counter by 1 count; once it reaches 0, the red LED starts to work normally.
What to do
- If an owner wants the LED to operate immediately, cycle the ignition key as many times as required to run the remaining counts to 0.
- To count as a cycle, the key must be left in the RUN and OFF positions for at least 3 seconds each.
What is needed
- Parts and materials
- Not stated
- Labor time
- Not stated
- Special tools
- Not stated
- Scan tool
- Not stated
Only what the technical documents state. "Not stated" does not mean not needed.
Caution
- So that Retained Accessory Power (RAP) does not keep the radio alive with the ignition off, the driver's door must be open during the key on/key off process.
- SPS programming the radio will not correct the concern.
Applies to
- Applies to 2003 -05 Chevrolet, GMC, Cadillac and Hummer H2 full size trucks and utilities: owners may comment that the red radio theft LED does not flash.
See the evidence (1 documents, 8 passages)
| Document | Publisher | Date |
|---|---|---|
| [1]GM TechLink, April 2005 ↗ | ManufacturerGeneral Motors | 2005-04-01 |
Applies toApplies to 2003 -05 Chevrolet, GMC, Cadillac and Hummer H2 full size trucks and utilities: owners may comment that the red radio theft LED does not flash.
Owners of some 2003 -05 Chevrolet, GMC, Cadillac, and Hummer H2 full size trucks and utilities may comment that the red radio theft LED does not flash.— [1]
Why it happensStarting with the 2003 model year, owners no longer enter a security code into the radio to activate the theft feature; it works automatically by learning a portion of the VIN.
Starting with the 2003 model year, owners no longer have to enter a security code into the radio to activate the theft feature like earlier model years. The radio theft feature works automatically by learning a portion of the VIN.— [1]
Why it happensDuring assembly of the radio a manufacturer's counter is set at 255 counts and should be set to 0 at the end of assembly; if the counter is not set to 0, the radio LED will not flash.
During assembly of the radio, a manufacturer’s counter is set at 255 counts for assembly purposes and should be set to 0 counts at the end of assembly. If the counter is not set to 0, the radio LED will not flash.— [1]
Why it happensEach cycle of the ignition switch reduces the counter by 1 count; once it reaches 0, the red LED starts to work normally.
Each cycle of the ignition switch reduces the counter by 1 count. Once the counter reaches 0, the red LED starts to work normally.— [1]
RepairIf an owner wants the LED to operate immediately, cycle the ignition key as many times as required to run the remaining counts to 0.
If an owner requests the LED to operate immediately, the ignition key must be cycled as many times as required to run the remaining counts to 0.— [1]
RepairTo count as a cycle, the key must be left in the RUN and OFF positions for at least 3 seconds each.
To count as a cycle, the key must be left in the RUN and OFF positions for least 3 seconds each.— [1]
CautionSo that Retained Accessory Power (RAP) does not keep the radio alive with the ignition off, the driver's door must be open during the key on/key off process.
TIP: To prevent the Retained Accessory Power (RAP) from keeping the radio alive when the ignition is off, be sure the driver’s door is open during the key on/key off process.— [1]
CautionSPS programming the radio will not correct the concern.
TIP: SPS programming the radio will not correct the concern.— [1]
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.
List the records (1 that can be opened)
Records whose recall number, document number or text matches. Each line says why it matched.
- Red radio theft LED does not flash: manufacturer's counter not reset at assemblyManufacturer communication 2005-04-01・document number matches