Both the standard-length wheelbase Envoy as well as the Envoy XL were available with the Denali trim option. The Envoy Denali features the hallmark bullet pattern grille and an upgraded interior with high-end car-like features such as heated power seats, extensive woodgrain trim, and rain-sensing windshield wipers. It also featured the GM Vortec 5.3 liter V8 engine with "Displacement on Demand," shutting off four of the eight cylinders when workload was minimal. Prices for the Envoy Denali ranged from US$37,145 to $42,750; prices for the Envoy XL Denali ranged from $38,575 to $43,895. Across the range, seating was restyled in hopes to increase comfort and quality of control of driving position. Additionally, a touch DVD navigation system was offered as an option. The option of side airbags evolved from previously just front-seat side-impact airbags to full-length side curtain airbags, covering both rows of seats (in the XL model, all three rows). For 2006, GMC added standard stability control, called "Stabilitrak," as well as standard cruise control, OnStar, and a tire pressure monitoring system. For the Denali, new 18-inch alloy wheels were introduced. The Envoy XL, and the Envoy XL Denali were both discontinued after the 2006 model-year when the Oklahoma City plant closed on February 20, 2006. It was replaced by the Acadia crossover SUV in 2007, and the Acadia Denali in 2011. No changes except that the Envoy XL was no longer available. For 2008 side-curtain airbags were made standard as well was XM Satellite Radio and Bluetooth wireless technology for wireless phones. In 2012, General Motors had recalled more than 258,000 SUVs in the U.S. and Canada to fix short-circuits in power window and door lock switches that could cause fires. The recall covered Chevrolet TrailBlazer, GMC Envoy, Buick Rainier, Isuzu Ascender and Saab 9-7X SUVs from the 2006 and 2007 model years. The SUVs were sold or registered in 20 U.S. states, Washington, D.C., and Canada, where salt and other chemicals are used to clear roads in the winter. The Envoy was also offered with an extended wheelbase to increase accommodation of more cargo and/or passengers. The Envoy XL was the full-size counterpart to the five-passenger mid-size Envoy.