2015 GMC Sierra 1500 Engine Problems

NHTSA component category: ENGINE · data through 07/14/2026

83Engine complaints

11.7%Of all 712 complaints

#5Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How engine ranks on this vehicle

SERVICE BRAKES219 · 30.8%

POWER TRAIN94 · 13.2%

EXTERIOR LIGHTING89 · 12.5%

ELECTRICAL SYSTEM88 · 12.4%

ENGINE83 · 11.7%

Share of the 712 complaints citing each category; one complaint can cite several. Full breakdown on the 2015 GMC Sierra 1500 overview page.

What owners report

“PROBLEM PRESENTED AS ENGINE DYING AT STOP SIGNS AND PROGRESSED TO ENGINE MISS WITH RANDOM ENGINE STOP. WAS SENT TO SHOP 3 TIMES OVER A…”NHTSA complaint 10947901 — filed 01/27/2017

“I BOUGHT THIS TRUCK NEW IN 4/2106 AND THERE IS A CLICKING SOUND WHEN ENGINE IS RUNNING. IS THIS NORMAL?”NHTSA complaint 10937443 — filed 12/26/2016

“2015 GMC SIERRA HAS A DELAY THROTTLE RESPONSE. DOES IT AT ALL SPEEDS AND FROM TAKE OFF. TOOK TO DEALER AND SERVICE ADVISOR PULLED TRUCK…”NHTSA complaint 10887889 — filed 07/22/2016

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Engine complaints by year filed

Frequently asked questions

Does the 2015 GMC Sierra 1500 have engine problems?

Engine is the #5 most-reported problem area on the 2015 GMC Sierra 1500: 83 of 712 complaints on file (11.7%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2015 GMC Sierra 1500 have in total?

712 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 23 involved a crash, 9 involved a fire, 11 reported injuries, and none reported deaths.

What does NHTSA's engine category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.