NHTSA — Engine Problems

2020 GMC Sierra 1500 (Page 2 of 2)

10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
3,500 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2020 GMC Sierra 1500 engine problems

engine problem

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2020 GMC Sierra 1500 Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #3

May 262020

Sierra 1500 8-cyl

  • 120 miles

A D V E R T I S E M E N T S

Ruptured oil cooler line. Draining the engine of oil and causing lock-up.

- Royersford, PA, USA

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problem #2

Feb 032020

Sierra 1500 8-cyl

  • 6,000 miles
Engine like keeps coming on. Code reading the knock sensor needs to be repair. Sensor has been replace twice in the past three months.

- Houston, TX, USA

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problem #1

Feb 172020

Sierra 1500

  • 168 miles
Smell of smoke strong in the cab and outside hood of truck. Also have seen smoke coming from hood of truck. Smells like burning electrical or plastic

- Greensburg, PA, USA

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