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2020 GMC Sierra 3500 HD 2020 SLE Extended Cab Pickup

Repair services & inexpensive new parts for 2020 GMC Sierra 3500 HD 2020 SLE Extended Cab Pickup with 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged engine.

The 2020 GMC Sierra 3500 HD SLE Extended Cab Pickup is a powerful and versatile truck designed for heavy-duty performance. Equipped with a robust 6.6L V8 diesel engine, it delivers impressive torque and towing capabilities, making it ideal for both work and recreation. With a spacious extended cab and 4WD system, this truck offers comfort and capability for drivers who need to haul heavy loads or navigate challenging terrains. Its turbocharged engine provides excellent fuel efficiency for a vehicle of its size, while the modern features ensure a comfortable driving experience.

Common Issues

The 2020 GMC Sierra 3500 HD may experience some common issues such as:

  • Transmission problems, including rough shifting or slipping.
  • Defective fuel injectors leading to decreased performance.
  • Electrical issues affecting the infotainment system.
  • Suspension wear, especially under heavy loads.

Maintenance Tips

  • Regularly change the engine oil and filters according to the manufacturer's schedule.
  • Inspect and replace air filters to maintain engine performance.
  • Check tire pressure and tread depth regularly for safety and efficiency.
  • Keep the transmission fluid at the recommended levels.

Typical Repair/Owership Cost Ranges

Repair and ownership costs can vary widely based on usage and maintenance, but here are some averages:

  • Routine maintenance (oil changes, filters): $100 - $200 per visit.
  • Brake pad replacement: $250 - $500.
  • Transmission repair: $1,500 - $4,000.
  • Engine repairs (if necessary): $3,000 - $7,000.

Buying Advice (What to Inspect)

When considering a used 2020 GMC Sierra 3500 HD, inspect the following:

  • Check for any signs of body damage or rust, especially on the frame.
  • Test drive the vehicle to assess engine performance and transmission smoothness.
  • Inspect the interior for wear and functionality of electronics.
  • Review maintenance records to ensure timely servicing.

FAQ

  • What is the fuel economy of the 2020 GMC Sierra 3500 HD? The fuel economy typically ranges from 13-16 mpg in the city and 17-23 mpg on the highway, depending on driving conditions and load.
  • How much can the Sierra 3500 HD tow? This model can tow up to approximately 35,500 pounds when properly equipped.
  • What type of oil does the 2020 GMC Sierra 3500 HD use? It generally requires 15W-40 diesel engine oil.
  • Are there any recalls on the 2020 GMC Sierra 3500 HD? It's important to check with the National Highway Traffic Safety Administration (NHTSA) for any active recalls.
  • What is the warranty coverage for this vehicle? The 2020 GMC Sierra 3500 HD typically comes with a 3-year/36,000-mile basic warranty and a 5-year/60,000-mile powertrain warranty.
  • How often should I service the diesel engine? Regular service intervals are usually recommended every 7,500 miles or 6 months, whichever comes first.

Have Questions about GMC Sierra 3500 HD 2020 SLE? Ask the assistant for questions about mileage, performance, repairs, parts, recommended maintenance and more.


Make: GMC
Model: Sierra 3500 HD
Trim: SLE Extended Cab Pickup 4-Door
Year: 2020

Quick Info

Fuel: DIESEL
Aspiration: Turbocharged
Engine Displacement: 6.6L
Engine CC: 6599
Engine CID: 403
Engine Block Type: V
Cylinder Type: OHV
Cylinders: 8
Drive: 4WD
Body Type: Extended Cab Pickup
Doors: 4

Repair services & inexpensive new parts for 2020 GMC Sierra 3500 HD 2020 SLE Extended Cab Pickup with 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged engine.