Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
4.
Press the button a second time, 2 light bars will glow indicating the MEDIUM temperature setting for the entire seat.
5.
Press the button a third time, 1 light bar will glow indicating the LOW temperature setting for the entire seat.
6.
Press the button a fourth time to turn the entire heated seat OFF.
7.
To heat ONLY the seat back, press the vertical (LH) button one time.
^
An ON/OFF indicator light over the heated seat back symbol will glow to designate that ONLY the seat back is being heated.
^
All 3 light bars over the horizontal (RH) button will glow indicating the HIGH temperature setting for ONLY the seat back.
8.
Press the button a second time, 2 light bars will glow indicating the MEDIUM temperature setting for ONLY the seat back.
9.
Press the button a third time, 1 light bar will glow indicating the LOW temperature setting for ONLY the seat back.
10.
Press the button a fourth time to turn the heated seat back OFF.
Switch Diagnostics
Important:
In order to eliminate unnecessary part replacement and comeback repairs, it is essential that the appropriate diagnostic tables and aids found in
the applicable manuals are followed.
1.
Verify the condition prior to making any repairs. Refer to Seats and Seat Controls in the applicable Owners Manual or this bulletin for proper
heated seat switch operation information.
2.
If an improperly operating front heated seat condition exists, refer to the Diagnostic Information and Procedures in the Seats sub-section of the
applicable Service Manual in order to diagnose the system accurately.
3.
When measuring the resistance of the seat heater elements, ensure the values are within the updated range of 1.5-5.5 ohms. Refer to DTC B2425
or B2430-Clearing the DTC in the Diagnostic Information and Procedures in the Seats sub-section of the applicable Service Manual.
Customer Information
Some heated seat components from the above listed vehicles have been returned to the Warranty Parts Center (WPC) for heat function not
operating properly. Analyses of these parts show 'no out of specification condition' or No Trouble Found (NTF).
1.
Provide customers with the knowledge that if bumped, either one of the heated seat switches can be activated/deactivated accidentally.
2.
Ensure customers have a thorough understanding of how the heated seat switches function.
Disclaimer
