2021 Jeep Gladiator Engine Problems
NHTSA component category: ENGINE · data through 07/12/2026
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
Share of the 281 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 Jeep Gladiator overview page.
What owners report
“The vehicle suddenly accelerates. The rpmâs shoot up real high, the Jeep accelerates and the brakes do NOT work. This has occurred while driving at…”NHTSA complaint 11490904 — filed 10/25/2022
“The contact owns a 2021 Jeep Gladiator. The contact received notification of NHTSA Campaign Number: 22V767000 (Fuel System, Gasoline, Engine) however, the part to do…”NHTSA complaint 11490313 — filed 10/21/2022
“2021 JEEP GLADIATOR. CONSUMER WRITES IN REGARD TO STOP/START SYSTEM NOT FUNCTIONING. THE CONSUMER STATED THE STOP/START FEATURE READS AS NOT READY. THE DEALER WAS…”NHTSA complaint 11485794 — filed 09/22/2022
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 Gladiator have engine problems?
Engine is the #3 most-reported problem area on the 2021 Jeep Gladiator: 53 of 281 complaints on file (18.9%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2021 Jeep Gladiator have in total?
281 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 7 involved a crash, 3 involved a fire, 7 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.
