Uploaded July 2025 | Updated September 2026, 6 days ago

---

My new GMC Sierra EV Denali Max Range needs a new high voltage battery pack. This is what happened and my experience with GM customer service and dealerships.

Become a member to get access to perks, including seeing videos like this before it goes public! 👉 youtube.com/technicallyjeff/join

Be sure to LIKE, SUBSCRIBE, and FOLLOW on all social media!

► Follow me on Facebook: facebook.com/TechnicallyJeffOfficial
► Follow me on Instagram: instagram.com/Technically_Jeff
► Follow me on TikTok: tiktok.com/@Technicallyjeff
► Follow me on X: https://x.com/TechJeff

✅ Check out my Technically Jeff Amazon and Walmart pages for many more recommended products & accessories ✅
► amazon.com/shop/technicallyjeff
► walmrt.us/4cSjRe1

When you buy something using links or promo codes I share, I may earn a small affiliate commission to help support the channel, but that does NOT impact my recommendations.

Check out these YouTube Playlists

► My Tech Reviews: youtube.com/playlist?list=PLoxNHKrnIJRsSWM4XUuvWCCQ_f7DDDs1M
► All My Reviews: youtube.com/playlist?list=PLoxNHKrnIJRtibSoSVxT0KPE8DCYMkOgc

Check out my NEW website 😎
► TechnicallyJeff.com

Stay tuned for videos on EVs, smart home tech, wearables, smartphones, solar panels, game systems, and more!

Topics Covered:

gmc sierra ev
gmc sierra ev high voltage battery
gmc sierra ev battery issue
gmc sierra ev battery failure
gmc sierra ev service high voltage system

#gmcsierraev #sierraev #gmc #electricvehicle