2018 GMC Savana

Issue: 
On certain vehicles, the brake lines could become damaged by contact with the body mounts. This could lead to a brake fluid leak and cause reduced braking. 
Note: This recall only affects certain cutaway chassis vehicles.  

Safety Risk: 
Reduced braking can cause extended stopping distances and increase the risk of a crash. 

Corrective Actions: 
General Motors will notify owners by mail and advise you to take your vehicle to a dealership to inspect and, if necessary, replace the brake lines.

Issue: 
On certain vehicles, an unused wiring harness for a rear HVAC blower motor, located in the left B-pillar area, could become damaged if exposed to moisture or contaminants. If this happens, the wires could short circuit.
Note: This recall only affects cutaway chassis incomplete vehicles.  

Safety Risk: 
A short circuit can create the risk of a fire. 

Corrective Actions: 
General Motors will notify owners by mail and instruct you to bring your vehicle to a dealership to seal the wiring for the rear HVAC blower motor at the left B-pillar.

Issue: 
Certain vehicles were built with tires that may have been cured too long. As a result, the sidewall could crack or the tread and belts could separate. This could lead to a sudden loss of air pressure and could cause a tire failure. 
Note: This recall only affects certain Continental tires, with specific date codes and mold numbers.

Safety Risk: 
A tire failure could cause a loss of control and increase the risk of a crash.                                                      
 
Corrective Actions: 
General Motors will notify the owners by mail and instruct them to take the vehicle to a dealer to inspect and replace the tires, if necessary.

Issue: 
Certain vehicles may have incorrect body control module software. As a result, the immobilization system is not active during the learning procedure for a new "unlearned" blank replacement key could be used during a 30 minute reprogramming procedure to disable the immobilization system. During this time, the vehicle cannot be driven. 

Safety Risk: 
This small error does not affect vehicle safety. 
  
Corrective Actions: 
This is not a recall. General Motors has made changes to vehicle software to ensure that all unsold and new vehicles have the correct body control module software.

On certain vehicles equipped with a single manual rear climate control module (CCM), the CCM could overheat when the temperature is set to maximum heat or the knob is set to maximum floor vent. If this occurs, the insulation material used on the CCM terminal connectors could catch fire, increasing the risk of injury and/or damage to property. Correction: Dealers will remove the insulation from the CCM terminal connectors.