Four problems related to ignition switch have been reported for the 1999 Chevrolet Tahoe. The most recently reported issues are listed below.
The contact owns a 1999 Chevrolet Tahoe. The contact stated that the plastic under the ignition switch was melting without warning. The contact also stated that the wires began to melt. The vehicle was taken to an independent dealer where it was diagnosed that the ignition switch assembly failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 218,000.
Suspected defective ignition switch and/or ignition switch passlock security on or about Jan 17 2014 I was traveling about 30 mph when the engine stalled with loss of power steering and brakes. I was able to stop without incident. After 10-15 minutes I was able to restart the vehicle and drive as normal. For several years after driving the ignition key was warm or hot when removed from the switch. In early 2013 the engine would occasionally stall immediately after starting but would restart after waiting 5 to 10 minutes. On Jan 14 when at a gas station the engine stalled but I was able to move the car to the curb. After 10-15 minutes I was able to restart and drive normal. * passlock ignition security feature is widely reported to be a cause of these symptoms.
Ignition switch is unable to be switched off due to an electrical short in steering column. Vehicle at dealer for repairs. Feel free to provide any further information.
When starting vehicle it starts sometimes, and sometimes has to wait 1 to 4 hours before it starts. Contacted dealer. Keys were not programmed for car. Reprogrammed vehicle, problem reoccurred 1 year later.