Contributing Writer, GM-Trucks.com
GMC has just released details of its 2019 Sierra AT4 off-road performance package. The AT4 is not new, it was launched earlier this year along with other trim packages. GMC is now adding a Performance Package to the AT4. To the already impressive list of AT4 features, GMC includes the following on the Performance Package:
- 6.2L V-8 engine mated to 10-speed automatic transmission.
- 18-inch machined aluminum wheels with Goodyear Wrangler DuraTrac tires.
- Cat-Back Performance Exhaust System.
- Performance Air Intake.
These changes add 15 horsepower and 9 lb-ft of torque to a Sierra equipped with a conventional 6.2L V-8. Power is now 435 horsepower and torque is 469 lb-ft. The 6.2L has recently been named a Wards 10 Best Engine for 2019.
The AT4 package includes the following content:
Standard 2-inch factory-installed suspension lift.
Standard 4WD with a two-speed transfer case, locking rear differential and skid plates.
Standard off-road-tuned Rancho monotube shock absorbers.
Standard Hill Descent Control.
Standard Traction Select System.
Standard GMC exclusive, industry-first MultiPro Tailgate.
Standard black chrome finish on the fog lamp bezels, fender surround and grille insert.
Standard body-color grille surround, door handles and bumper.
Standard exclusive athletic interior trim elements.
Standard red vertical recovery hooks.
Available segment-first Multi-Color Head-Up Display.
Available segment-first Rear Camera Mirror.
Available GMC-exclusive, industry-first Carbon Fiber Pickup Box.
A full suite of advanced available safety features including Surround Vision, Lane Change Alert with Side Blind Zone Alert, Front Pedestrian Braking and Low Speed Forward Automatic Braking.
GMC says that the Sierra AT4 Off-Road Performance Package is priced at $4,940 and is on sale now.
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just replaced the windshield on my 15 Yukon and the guy told me that I might need to recalibrate my adas systems ad rain sensors.
Did anybody here had to go through this process? I’ve actually called the dealer which told me that 99% of the times there is no need to recalibrate the system...
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