Jeep Smog Check
Jeep gasoline + diesel + plug-in hybrid (Wrangler 4xe, Grand Cherokee 4xe) vehicles need California smog. Aftermarket lift kits + exhaust modifications often cause visual failures.
Common reasons a Jeep fails California smog
- Wrangler with aftermarket lift + exhaust — CARB EO# missing
- Grand Cherokee diesel deleted DEF — instant fail
- Cherokee 2.0L turbo emissions issues 2018-2020
- Compass CVT-related ECU codes
How to prepare your Jeep (pass first try)
- Verify any aftermarket parts have CARB Executive Order numbers
- Drive 30+ miles
- Diesel: keep DEF full, restore OEM emissions
- PHEV: drive 50+ miles on gas to clear readiness
Jeep vehicle categories
- gas (Wrangler, Grand Cherokee, Cherokee, Compass, Gladiator, Renegade)
- PHEV (Wrangler 4xe, Grand Cherokee 4xe — required, OBD-II protocol)
- diesel (Grand Cherokee EcoDiesel — discontinued but still on roads)
Common Jeep smog questions
Where can I get a Jeep smog check?
Any of our 13 BAR-licensed STAR-certified locations in San Diego, Orange, and Riverside counties handle Jeep smog inspections. Walk-ins welcome. 15-25 minute inspections.
What are common reasons a Jeep fails smog?
Wrangler with aftermarket lift + exhaust — CARB EO# missing is one of the most common. Visit our shop for diagnosis if your check engine light is on.
How can I prepare my Jeep for smog inspection?
(1) Verify any aftermarket parts have CARB Executive Order numbers. (2) Drive 30+ miles. (3) Diesel: keep DEF full, restore OEM emissions.
Is my Jeep EV/BEV exempt from California smog?
Yes — any 100%-electric Jeep (no gasoline engine) is exempt under California Health & Safety Code §43002. PHEV versions are still required.
STAR-certified shops near you
All locations handle Jeep smog inspections. Walk-ins welcome.