# Service bulletin 0700523

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10239936
- Published by NHTSA: 2023\-07\-31
- Manufacturer's number: 0700523
- Manufacturer's date: 2023\-05\-10
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Engine Coolant Leak Coolant leak under vehicle and/or low coolant warning on dash. This bulletin involves inspecting and replacing the ECT sensor if required.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239936-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239936-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2023 JEEP CHEROKEE

## Other bulletins for the same vehicles and component

- [18\-044\-26](/bulletins/11030229.md), 2026-03-25, Service bulletin: ENGINE. Flash: Powertrain Control Module \(PCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● \*\*P0111\-00 \- Intake Air Temperature Sensor 1 Circuit Range Performance Bank 1. \(In Active or Stored status\) ● P0071\-00 \- Ambient Air Temperature Sensor Performance. \(In Active or Stored status\) ● P0072\-00 \- Ambient Air Temperature Sensor Circuit "A" Low. \(In Active or Stored status\) ● P0073\-00 \- Ambient Air Temperature Sensor Circuit "A" High. \(In Active or Stored status\) ● P0011\-00 \- Bank 1 Camshaft 1 Position Timing Over Advanced Or. \(In Active or Stored status\) ● P25E4\-00 \- B Camshaft Position \- Unable To Achieve Locked Position Bank 1. \(In Active or Stored status\) ● P05BD\-00 \- Stop\-Start Mode Switch Range/Performance. \(In Active or Stored status\) ● P0116\-00 \- Engine Coolant Temperature Sensor 1 Performance. \(In Active or Stored status\) ● P062B\-00 \- Internal Control Module Fuel Injector Control Performance. \(In Active or Stored status\) ● P0604\-00 \- Internal Control Module Random Access Memory Ram Error. \(In Active or Stored status\) ● P060C\-00 \- Internal Control Module Main Processor Performance. \(In Active or Stored status\)\*\* ● P018B\-00 \- Fuel Pressure Sensor "B" Circuit Range/performance. \*\*\(In Active or Stored status\)\*\* ● P1CEA\-00 \- Boost Side EVAP Purge System Performance. \*\*\(In Active or Stored status\)\*\* ● P06DD\-00 \- Engine Oil Pressure Control Circuit Performance/Stuck Off. \*\*\(In Active or Stored status\)\*\* ● P00C6\-00 \- Fuel Rail Pressure Too Low \- Engine Cranking. \*\*\(In Active or Stored status\)\*\* ● P0300\-00 \- Multiple Cylinder Misfire. \*\*\(In Active or Stored status\)\*\* Customers may also experience one or more of the following: ● \*\*Oil Level High Warning in the Instrument Panel Cluster \(IPC\).\*\* ● Fully Autonomous Parking Assist \(FAPA\) is not deactivated when accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezi
- [9100325 Rev 1](/bulletins/11024035.md), 2025-10-08, Service bulletin: ENGINE. Before replacing any parts please refer to SOL S2518000008 if it applies to the vehicle you are working on based on a VIN search in Service Library. Before replacing this part due to Engine Light On with P1CEA \(Boost Side EVAP Purge System Performance\), check for: 1\) Improperly connected or kinked/pinched Purge Hoses at the Ejector Tees on the Air Box or Duct. 2\) Improperly connected or kinked/pinched Purge Hose at the Purge Solenoid or OBD Valve. 3\) Improperly connected or kinked/pinched Purge Hose at the Intake. 4\) Check for the correct Purge Hoses installation.
- [102934](/bulletins/11013643.md), 2025-02-05, Service bulletin: ENGINE. THROTTLE BODY
- [S1408000384 REV.F](/bulletins/11002828.md), 2024-07-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE. "Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor \(IBS\) State of Charge \(SOC\) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes \(DTCs\), or Battery Warning Lamp On "
- [9100264](/bulletins/10248966.md), 2024-01-16, Service bulletin: ENGINE AND ENGINE COOLING. PSU Oil Pump Assy
- [S1721000016](/bulletins/10247452.md), 2023-12-18, Service bulletin: ENGINE AND ENGINE COOLING; AIR BAGS. Service 4wd Light On, AWD System Service Required Message Illuminated. Diagnostic Trouble Code \(DTC\) C14A7\-97 PTU Motor Component Or System Operation Obstructed Or Blocked, Set.
- [0700723](/bulletins/10239957.md), 2023-07-31, Service bulletin: ENGINE AND ENGINE COOLING. Water Quality When Mixed With Engine Coolant
- [0812023](/bulletins/10239927.md), 2023-07-31, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Flash: Drivetrain Control Module \(DTCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) or warning lamp illumination. Upon further investigation the technician may find that the multiple Diagnostic Trouble Codes \(DTCs\) have been set: ? C1403\-29 \- Transfer Case Range Position Sensor\-Signal Invalid. ? C14AA\-62 \- Transfer Case Motor Position Sensor Supply\-Signal Compare Failure. This bulletin involves reprogramming the DTCM with the latest software available.
- [1804823](/bulletins/10236933.md), 2023-05-30, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test \(SLVT\) \- P0456\-EVAP SYSTEM SMALL LEAK

JSON: [/v1/bulletins/10239936](/v1/bulletins/10239936)

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