02 Trailblazer AWD problem
We have an 02 Traiblazer with 30,000 miles on it. Lately the transmission has be shifting from 2 wheel into AWD without turning the knob. Sometimes the indicator light flickers like it is going to change, and then doesn't. We have taken it to the dealer, and they are telling us that their computer program has not been updated to diagnose this problem. We have contacted Chevy, and we are waiting for them to finish their research on the problem. Has anyone out there experienced a similar problem? I love the vehicle, but this is getting ridiculous, and I'm worried about the wear and tear on not only the transmission, but my tires and gas mileage as well. Thanks!
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Tell them to check the SI2000 system. The TSB is there for the problem, along with the info to repair it.
Service 4WD Indicator Illuminated, DTC B2725 Set (Replace Transfer Case Shift Control Switch) #02-04-21-002
"Service 4WD" Indicator Illuminated, DTC B2725 Set (Replace Transfer Case Shift Control Switch)
2002 Chevrolet and GMC S/T Utility Models (Trailblazer, Envoy) with Four Wheel Drive
Some owners may comment on the Service 4WD Indicator illuminating. Upon investigation, the technician may find a DTC B2725.
The condition may be due to the transfer case shift control switch.
Replace the transfer case shift control switch using published Service Information procedures.
Verify that the vehicle contains the latest calibration for the automatic transfer case control module. Calibrations are electronic calibrations and are NOT available from GMSPO. Calibrations will be available from Techline starting January 2002, on the TIS 2000 version TIS 01/2002 data update or later. Reprogram the automatic transfer case control module if necessary.
Part Number Description Qty
15097405 Transfer Case Shift Control Switch 1
Parts are currently available from GMSPO.
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
K4123 Switch, Transfer Case Select - Replace Use Published Labor Time
J6355 Prom - Reprogramming (as necessary) Use Published Labor Time
Hey Zeuslewis, where would I find info on those 3 lemon law cases you mentioned? I'd love to know how they turned out. I'm @ [email protected] if you could send me some info.