GMC has added a passenger-side airbag and a power lock switch in the cargo compartment. SLE and SLT trim now includes rear heat and air conditioning, as well as remote keyless entry. Uplevel SLT trim also includes a combination CD and cassette player stereo system. All Suburbans receive speed-sensitive power steering, and 4WD models have a tighter turning circle. Two new colors freshen the dated exterior design this year.