The National Highway Traffic Safety Administration (NHTSA) is upgrading an investigation into almost 400,000 2002-2003 Jeep Liberty SUV’s, for complaints of inadvertent airbag deployment. Almost 90 complaints have been received to date, 50 of which alleged injuries including burns, cuts and bruises. Chrysler and the NHTSA are suspecting a voltage spike in the electronic circuit that controls the airbag deployment, and are working with the safety administration for confirmation. There have been no complaints of inadvertent airbag deployment in vehicles manufactured after March 19, 2003.