2026 GMC Sierra EV 20-mod battery, 19kW 15-mode charger Review
57
out of 100
C+
#28 of 39 trucks · class median 65
Reliability65
25% of overall
Efficiency56
25% of overall
Economics54
50% of overall
What drives the score
Reliability — 65/100
NHTSA recall rate0.0 campaigns/yr 88
0 recall campaigns across 1 model year on record.
Documented owner issuesNot yet curated 60
No curated issue list yet — scored neutrally rather than assumed clean.
Battery degradation2.0% / yr 33
Segment default (2.0%/yr) — no measured curve yet.
Efficiency — 56/100
EPA efficiency2.05 mi/kWh 43
Miles per kWh vs other trucks. Drives every cost figure on this site.
EPA range385 mi 75
Rated combined range. Expect 20-30% less in freezing weather.
Fast-charge speed86 mi / 10 min 61
Peak 350 kW, derated to a realistic 10-80% average.
Economics — 54/100
Energy cost per mile11.3¢/mi 43
80% home at 17¢/kWh, 20% public DC at 48¢/kWh (US averages).
Fuel savings vs gas rival$1,256/yr 87
Against the GMC Sierra Denali (18 MPG) at $3.92/gal, 12,000 mi/yr.
Battery value at risk$528/yr 43
Pack capacity lost each year, valued at $132/kWh replacement cost.
Road-trip charging cost$23.40 / 100 mi 43
Cost of 100 miles bought entirely at public DC fast chargers.
Ownership numbers at a glance
- Energy cost per mile
- 11.3¢
- Annual energy cost (12k mi)
- $1,357
- Fuel savings vs gas rival
- $1,256/yr
- Fast-charge speed
- 86 mi per 10 min
- Battery value lost per year
- $528
- NHTSA recall campaigns
- 0
Assumes 12,000 mi/yr, 80% home charging at $0.17/kWh and public DC at $0.48/kWh, gas at $3.92/gal. Scoring model v1.0.