2003 chevrolet suburban

2003 CHEVROLET SUBURBAN
135,000 MILES • 4WD • AUTOMATIC
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BENSMA100
  • MEMBER
  • 1 POST
service 4wd message on. tonight car is in 4wd tried to switch 2wd light just blinks
Nov 27, 2010 at 5:42 PM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
Need to use a scanner and to check for codes
an OBDII reader will not get the transfer case codes and need a scanner
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check fuses
remove ex. fuse and recheck
suspect switch or encoder motor
Nov 27, 2010 at 5:52 PM
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