Customer Assistance Offices (Mexico)
To contact the Customer Assistance Center (CAC), use the phone numbers listed in this section.
Customer assistance is available Monday through Friday, 08:00 to 20:00 hours, and Saturdays from 08:00 to 15:00 hours.
All e-mail inquiries to the Customer Assistance Center (CAC) should be sent to: cac.gmc@gm.com.
Mexico
From Mexico City
5329-0812
From Other Mexico Locations
01-800-466-0812
United States and Canada
1-866-466-8191
Costa Rica
00-800-052-1005
Guatemala
1-800-999-5252
Panama
00-800-052-0001
Dominican Republic
1-888-751-5301
El Salvador
800-6273
Honduras
800-0122-6101
See also:
Range Selection Mode (Allison® Transmission or Hydra-Matic® 6-Speed
Transmission)
The vehicle may have a Range Selection Mode. The Range Selection Mode helps control the vehicle's transmission and vehicle speed while driving down hill or towing a trailer by letting you select a d ...
Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer.
This can help to avoid situations that require heavy braking and sudden turns. ...
Transfer Case
Refer to the Maintenance Schedule to determine how often to check the lubricant
and when to change it. See Maintenance Schedule on page 11‑3. ...





