One problem related to warning light on has been reported for the 2005 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Chevrolet Tahoe based on all problems reported for the 2005 Tahoe.
The "service stability" warning message displayed, abs warning light, tc tire deflation, and brake failure light. The first failure occurred on or about February 13, 2012. I took the vehicle to the Chevrolet dealership immediately and the repair was completed by March 27, 2012 after 3 attempts. The computer tester was alleged to show that the ebcm had failed and was replaced. This did not clear the defect and the same warnings continued when ever the car was washed or became wet from rain. The defect was said to be in the wire that powered the ebcm in the proximity of the firewall. The wire was stated to be frayed. When the wire was replaced the problem was corrected. I am concerned that the wire may have been damaged from abrasion near the firewall combined with corrosion from road salt. This could have lead to failure of the abs, airbags, and stability control at a time when it is most needed.