Maintenance When Trailer Towing
The vehicle needs service more often when pulling a trailer.
See Maintenance Schedule on page 11‑3. Things that are especially important in trailer operation are automatic transmission fluid, engine oil, axle lubricant, belts, cooling system and brake system. Inspect these before and during the trip.
Check periodically to see that all hitch nuts and bolts are tight.
See also:
Total Weight on the Vehicle's Tires
Inflate the vehicle's tires to the upper limit for cold tires. These numbers
can be found on the Certification label or see Vehicle Load Limits on page 9‑16
for more information. Do not ...
Torque Lock
Torque lock is when the weight of the vehicle puts too much force on the parking
pawl in the transmission. This happens when parking on a hill and shifting the transmission
into P (Park) is not do ...
Onstar.com
The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service.
Get subscription plan pricing and sign up for OnStar Vehicle Diagnos ...