The problem
The link connecting the electronic rear height sensor to the rear axle can disconnect under several conditions, allowing the arm attached to the sensor to lodge between the rear axle assembly and the right rear brake pipe. This abrades the brake pipe and could lead to rear brake failure.
The risk
Abrasion of the brake line could result in loss of rearbrakes. The front brakes would function, but the vehicle would need increasedstopping distances which could result in an accident.
The fix
Install retention clips to insure the lower and upper ball socket cannot be removed from the ball; add a down stop on the sensor arm; and add a shield on the rear axle.
Contacts
System: brakes and electronic level control.Vehicle description: multi-purpose vehicles built in stages.
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized GMC dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 91V207000.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.