GMC · Canada · High
GMC G Series, C Series +1 more: Steering
Affects GMC G Series, C Series, P Series · 1985–1986 — about 20K vehicles.
The hazard
On certain C3500, G3 and P30 vehicles, the left hand lower control arm can crack starting at the rear flange and progress to the ball joint mounting hole and eventually cause the lower ball joint to separate from the control arm. This could result in loss of vehicle control and a crash without prior warning. Correction: Dealers will install a reinforcement brace to the left-hand lower control arm.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational