2021 Jeep Wrangler Engine Problems

Q: Does the 2021 Jeep Wrangler have engine problems?

Engine is the #3 most-reported problem area on the 2021 Jeep Wrangler: 223 of 959 complaints on file (23.3%). Complaints are unverified owner reports, not confirmed defects.

Q: How many complaints does the 2021 Jeep Wrangler have in total?

959 complaints were on file with NHTSA as of 11/01/2026. Across all categories, 21 involved a crash, 28 involved a fire, 15 reported injuries, and none reported deaths.

Q: 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.

NHTSA component category: ENGINE · data through 11/01/2026

223Engine complaints

23.3%Of all 959 complaints

#3Most-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

ELECTRICAL SYSTEM305 · 31.8%

STEERING254 · 26.5%

ENGINE223 · 23.3%

SUSPENSION181 · 18.9%

POWER TRAIN147 · 15.3%

Share of the 959 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 Jeep Wrangler overview page.

What owners report

“I left my daughters house with my jeep wrangler and as I shifted into forward gear there was no power on my wrangler 4XE hybrid…”NHTSA complaint 11440118 — filed 11/11/2021

“The two main wire harnesses are faulty. It would not charge or hold a charge. Driving it was dangerous and would stop drastically at any…”NHTSA complaint 11439030 — filed 11/02/2021

“While towing a <3000 lb. trailer up a long grade (2.5 to 3 miles) on the interstate at the posted speed, warning messages were displayed…”NHTSA complaint 11437635 — filed 10/21/2021

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

Engine complaints by year filed

Frequently asked questions

Does the 2021 Jeep Wrangler have engine problems?

Engine is the #3 most-reported problem area on the 2021 Jeep Wrangler: 223 of 959 complaints on file (23.3%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2021 Jeep Wrangler have in total?

959 complaints were on file with NHTSA as of 11/01/2026. Across all categories, 21 involved a crash, 28 involved a fire, 15 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 11/01/2026.