If the cable strands contacted the exhaust pipe a short circuit could cause the battery cable coatings to ignite and possibly lead to an engine compartment fire.
Certain medium duty trucks equipped with the optional caterpillar diesel engine (LG5) option were built with a misrouted battery cable that could come in contact with the exhaust pipe. The conduit and the nylon cable coating could degrade to the point where the copper wire strands of the cable are exposed.
Dealers will inspect the battery cable for proper routing and reroute the cable if necessary. Owner notification began October 25, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact Chevrolet at 1-800-222-1020 or GMC at 1-800-462-8782.