Troubleshooting & Recalls

7,534 topics in this forum

1. 2018 GMC Sierra Steering Steering Shaft Rust

   By FishNowWorkLater, August 31, 2018
   • 4 replies
   • 2.4k views
   • 
   • FishNowWorkLater
   • September 7, 2018

2. 2018 GMC Sierra. AC not blowing Cold...NOT COVERED

   By willcofinance, May 5, 2020
   • 5 replies
   • 21.9k views
   • 
   • migrabill
   • May 5, 2020

3. 2018 infotainment system rebooting

   By ES44AC, March 2, 2020
   • 9 replies
   • 9.9k views
   • 
   • ES44AC
   • March 4, 2020

4. 2018 Loss of steering

   By Magnate, February 27, 2018
   • 2 replies
   • 1.2k views
   • 
   • sk
   • February 27, 2018

5. 2018 low coolant

   By swoleymammoth, May 6, 2022
   • 3 replies
   • 943 views
   • 
   • Eddie 70
   • May 6, 2022

6. 2018 No Start

   By Enough, March 1, 2019
   • 7 replies
   • 606 views
   • 
   • Enough
   • March 3, 2019

7. 2018 No start, install new battery still no start

   By No Tyme, August 30, 2022
   • 12 replies
   • 1.3k views
   • 
   • Chester Hartsock
   • October 12, 2022

8. 2018 P0300:00

   By JamesZ, March 5
   • 9 replies
   • 415 views
   • 
   • JamesZ
   • March 6

9. 2018 Popping front end

   By Billy Morgan, October 6, 2020
   • 6 replies
   • 903 views
   • 
   • 14 Silvy
   • October 7, 2020

10. 2018 power steering quit while driving.

    By 15slvrDbl, December 21, 2019
    • 2 replies
    • 542 views
    • 
    • Chicken Heart
    • December 28, 2019

11. 2018 power steps

    By blackstangmoan, August 1, 2020
    • 0 replies
    • 361 views
    • 
    • blackstangmoan
    • August 1, 2020

12. 2018 Sierra 1500

    By Tyler Roderick, May 1, 2020
    • 2 replies
    • 491 views
    • 
    • JimCost2014
    • May 3, 2020

13. 2018 Sierra 1500 4WD CC SB Truck Bed Not Level on Frame??

    By kbaker0517, June 10, 2020
    • 4 replies
    • 1.3k views
    • 
    • Cwildman
    • June 10, 2020

14. 2018 Sierra 1500 5.3L noise

    By Truman71, June 22, 2021
    • 2 replies
    • 658 views
    • 
    • Grumpy Bear
    • June 23, 2021

15. 2018 sierra 1500 curb hit 1 2

    By Sharp780, December 3, 2018
    • 15 replies
    • 4k views
    • 
    • SkiDooNick700
    • December 3, 2018

16. 2018 Sierra 5.3 high pitch whistle or whine at idle

    By 79Mercy, June 10, 2019
    • 13 replies
    • 26.9k views
    • 
    • TravStu
    • November 20, 2023

17. 2018 sierra 5.3 service emissions system text message

    By theperfectv, January 20, 2022
    • 4 replies
    • 8.9k views
    • 
    • rlcole321
    • January 25, 2022

18. 2018 Sierra 5.3L 'farting' out the tailpipe,sounds like wipers on a dry window 1 2

    By Grinnen, April 6, 2019
    • 17 replies
    • 3.2k views
    • 
    • Lsgun1
    • April 10, 2019

19. 2018 Sierra 8 speed, only have 4th gear, delay shift into D

    By Bmech, December 12, 2020
    • 2 replies
    • 788 views
    • 
    • Bmech
    • December 15, 2020

20. 2018 Sierra child lock always on

    By Cryssyl, September 16, 2022
    • 1 reply
    • 2k views
    • 
    • JimCost2014
    • September 17, 2022

21. 2018 Sierra Clank and whine in 4WD Auto

    By Casey Fox, November 17, 2020
    • 0 replies
    • 447 views
    • 
    • Casey Fox
    • November 17, 2020

22. 2018 Sierra Denali - Anybody know what this wire is?

    By dapersico, December 19, 2019
    • 3 replies
    • 638 views
    • 
    • Chicken Heart
    • December 28, 2019

23. 2018 Sierra Denali ride height 1 2 3

    By Pt187, December 27, 2019
    • 33 replies
    • 13.8k views
    • 
    • C Dave
    • March 4, 2020

24. 2018 sierra Denali weird vibration

    By hackitz, September 2, 2020
    • 7 replies
    • 9.5k views
    • 
    • Kimberly Bowman
    • January 6, 2024

25. 2018 Sierra E-Assist Stuttering When Cold

    By Ed10000, May 8, 2019   

    • e-assist
    • sierra
    • (and 2 more)

      Tagged with:

      • e-assist
      • sierra
      • stuttering
      • brake
    • 1 reply
    • 987 views
    • 
    • spenm181
    • May 20, 2019