C 3500 Truck 2WD V8-454 7.4L (1990)
Antenna: All Technical Service Bulletins
Power Antenna - Doesn't Retract W/Ignition On/Radio Off
Number:
90-423-9A
Section:
9A
Date:
MAY 1991
Corp. Bulletin No.: 139007
Subject:
POWER ANTENNA MAY NOT RETRACT
Model and Year:
1989-90 CAMARO, CORVETTE 1989-90 C/K TRUCK 1990 U VAN
These are the car and truck lines affected:
F,Y; C/K, and U Van Trucks
Condition:
The power antenna may not retract when the ignition is on and the radio is turned off. The antenna should retract when the ignition is turned off.
This condition may occur on radios with push buttons for volume control and tuning (called Advanced Electronically Tuned Radio, or AETR).
Cause:
The software in the radio may allow this condition to happen when the battery power to the radio has been removed and then restored, or when the
vehicle has been jump started.
Correction:
Send the radio to your local Delco repair station, with a clear explanation of the condition.
Warranty Information:
Use existing labor operations.
