Headlamp Flicker or Momentarily Dim While Driving 06-06-03-004 Supplement - keywords air battery dim erratic flicker fluctuation headlamp headlight injection k18 ll8 normal operation PIT4491 PIT4491a
| Subject: | Headlamp Flicker or Momentarily Dim While Driving 06-06-03-004 Supplement |
| Models: | 2005 Buick Rainier - Short Wheel Base Only |
| 2005 Chevrolet TrailBlazer - Short Wheel Base Only |
| 2005 GMC Envoy - Short Wheel Base Only |
This PI Supersedes To Update Recommendation/Instructions. Please Discard PIT4491A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may comment of an intermittent headlamp flicker while driving. This flicker has been described in bulletin 05-08-42-001 and 06-06-03-004. This will only affect short wheelbase vehicles equipped with the 4.2L Engine (VIN S - RPO LL8) and Electric Air Injection Reactor System (RPO K18).
Recommendation/Instructions:
At this time, there are no repairs for this concern. Engineering is revisiting this concern. Please disregard any previous communications and/or updated calibrations for this concern. This PI will be updated when a repair becomes available.
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.
