Special Application Services
• Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.
• Have underbody flushing service performed once a year.
See also:
Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
To replace one of these bulbs:
1. Open the tailgate. See Tailgate on page 2‑10 for more information.
2. Remove the two rear lamp assembly screws near the tailgate latch strikerpost and pull ...
When to Check Power Steering Fluid
It is not necessary to regularly check power steering fluid unless there is a leak suspected in the system or an unusual noise is heard. A fluid loss in this system could indicate a problem. Have the ...
Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has changed, OnSta ...





