5.5

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
16,250 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2018 GMC Sierra 1500:

Unsubscribe any time. We don't sell/share your email.

Get free help with your lemon!
close ad
problem #4

Mar 052023

Sierra 1500

  • miles
The middle rear seatbelt fails to lock when retracted, therefore I cannot use my grandchild's booster seat. The dealership has ordered a replacement, but cost nearly $300. I bought the vehicle new in December 2018, but have never had to use the real seatbelt until now. Therefore I did not know it did not work properly until now.

- Ringgold, GA, USA

Add Complaint
problem #3

Jan 022020

Sierra 1500

  • 60,000 miles
The contact owns a 2018 GMC Sierra 1500. The contact stated that the seat belt straps for the rear driver-€™s and passenger-€™s side seats would no longer retract and were stuck between the seat cushions. The cause of the failure was not determined however, the local dealer informed the contact that the seat belt retractors were likely defective and would need to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 60,000.

- Lebanon, KS, USA

Add Complaint
problem #2

Jan 042022

Sierra 1500

  • miles
Driver's side seat belt receptacle does not hold. It is difficult to get seatbelt to latch properly. Sometimes it latches and releases later. Dealer confirmed seat belt receptacle needed to be replaced.

- Lino Lakes, MN, USA

Add Complaint
problem #1

Jul 192018

Sierra 1500

  • 5,000 miles
The back middle seatbelt broke shortly after the vehicle was purchased new.

- Houston, TX, USA

Add Complaint