Three problems related to brake antilock wheel speed sensor have been reported for the 2003 Chevrolet Suburban. The most recently reported issues are listed below.
Abs would incorrectly engage when stopping at low speeds (< 5 mph). Increases stopping distance since abs starts pumping instead of just applying brakes. This happens on ideal road conditions and at low speed/non skidding stops. Mechanic replaced wheel hub assembly on both front left and front right wheels (wheel hub included new abs speed sensor). Problem was fixed. This is obviously a safety issue. Gm has already recalled 99 - 2002 (mine is a 2003) Suburbans for this. Mechanic indicated that abs sensors were badly corroded (presumably) from salt getting into contact with the sensor. Mechanic also indicated that he has fixed this in *many* Suburbans and in many cases that came after owners had unsuccessfully tried to get dealers to fix the issue. Mechanic said dealers were replacing the abs computer, at a cost of thousands of dollars, and problem still wasn't fixed. Important note: it appears that regardless of whether a recall is done, dealers should at least be aware of this common safety problem with Suburbans from this time period.
Based on NHTSA #05v379000, our 2003 Chevrolet Suburban has exhibited the same problem of engaging the abs system when coming to a stop at a light or intersection. This only happens on a slow stop. The referenced recall does not include year 2003 and Chevrolet will not repair at no charge. This problem happens intermittently, sometimes three times in one day and then not at all for a couple of days. My auto mechanic has confirmed the problem is a corrosion of front wheel speed sensor.
2003 chevy Suburban is having the same abs problems that led to the recall of 99-2002 Suburbans in the "salt belt". I have talked to the dealer as well as gm, but to no avail. The 2003 needs to be recalled as well. Thank you.