We have a continued problem with brake pulsation at slow speed, particularly when slowing to a stop or turning into a parking space. The problem seems most prevalent when the wheels are being turned / steered. The pulsation is similar to the ABS behavior when it is activated.

We bought this vehicle used in July '08. At the time of purchase, the ABS MIL was lit. As part of the sale, the dealer performed a diagnostic and provided repair parts. Their diagnosis (for the MIL) was a faulty EBCM. Following GM repair procedures, I replaced the part and had a dealer re-calibrate the tire size in the new ABS EBCM. The ABS MIL extinguished immediately upon replacement of the EBCM however the slow-speed brake pulsation has persisted.

I replaced the pads and shoes at all four corners, the front brake rotors, and had a separate diagnostic run on the ABS system. All parameters on the ABS system were within acceptable range.

This problem may be related to the condition which led to the recall of similar Chevrolet and GMC vehicles. While the Cadillac Escalades were include on the NHTSA investigation, they were excluded from GM's recall.

I'm also wondering if the transmission is not properly downshifting when slowing to a stop.

This problem is internittent and does not seem to be controlled by the operator's driving habits.