GM Service Manual Online
For 1990-2009 cars only

Reporting Navigation Map Concerns

Subject:Reporting Navigation Map Concerns

Models:2007-2009 Chevrolet Tahoe, Silverado Suburban
2007-2009 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL
2008-2009 Hummer H2
with Navigation Radio RPO (U3U, UVB)



This PI was superseded to update model years. Please discard PIT4367C.


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

Some customers may report missing or inaccurate information within their Navigation Radio map software

Recommendation/Instructions:

General Motors uses a map database from GDT, now Tele Atlas, It is the same database that Microsoft Streets and Trips and Mapquest use. Sometimes streets will not be found in the database. Tele Atlas is consistently updating the map database and will gladly accept any information you have on streets that are missing or incorrect. Go to www.teleatlas.com to provide map feedback.

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.