| Subject: | Unable To Program Tire Size In EBCM/VSES |
| Models: | 2003-2006 Cadillac Escalade, EXT, ESV |
| 2003-2006 Chevrolet Avalanche, Suburban, Tahoe |
| 2003-2007 Chevrolet Silverado Classic |
| 2003-2007 GMC Sierra Classic |
| 2003-2006 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
This PI is being updated to add models. Please discard PIT3425.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
When programming tire size in the ebcm be advised there are three items which must be selected correctly.
Recommendation/Instructions:
- It is very important that when building the Tech 2 that the proper gross vehicle weight (gvw) range is selected. The Tech 2 offers three different GVW options and they are:
| • | "Equal to or Under 8600 GVW" |
| • | "Equal to or Under 8600 GVW PHT" (PHT is a Parallel Hybrid Truck RPO HP2) |
- If the vehicle is equipped with Stabilitrak RPO "JL4" select "VSES" under the Tech 2 Chassis menu NOT "ABS".
- On 2005 Model Year vehicles select the proper Rear Brake System "Rear Drum Brakes" or "Rear Disc Brakes".
Note: If any of the above items are not selected properly the Tech 2 will not be able to program the tire size and programming will fail.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
