ON CERTAIN TRUCKS, THE WIRES IN THE ABS WHEEL SPEED SENSOR FRONT OR REAR HARNESS MAY BE REVERSED.
DEALERS WILL CORRECT THE ABS WHEEL SPEED SENSOR WIRING AND, IF NECESSARY, REPROGRAM THE BRAKE CONTROL MODULE FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 27, 2007. OWNERS MAY CONTACT HUMMER AT 800-732-5493.
GM RECALL NO. 07221. CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.