2021 Toyota Tacoma Engine cooling Problems
- Complaints
- 2about this part
- Share
- 2%of 81 total for the year
- Median mileage
- 76,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2021 Toyota Tacoma, 2% of the 81 complaints for this model year. Where a mileage was given, the median is 76,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2021 Toyota Tacoma. The contact stated while the vehicle was parked at the residence, the contact raised the hood to inspect the engine and became aware that the coolant bypass valve was leaking coolant. A dealer was not contacted. The vehicle was taken to a dealer to be diagnosed and the contact was informed that the coolant bypass valve needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the part was not under warranty. The approximate failure mileage was 50,000.”
NHTSA complaint #11645330, filed 2025-02, 50,000 milesRelated service bulletins
- 10253223Mar 4, 2024This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the…
- 10230385Dec 22, 2022TSB: Some 2019 ? 2022 model year Avalon, 2018 ? 2023 model year Camry, 2017 ? 2022 model year Highlander, 2017 ? 2020 model year Sienna, and 2016 ? 2023 model year Tacoma…
- 10213896May 27, 2022TSB: This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode? active test in some 2016 ? 2022 model year Toyota vehicles…
- 10210372Mar 8, 2022TT: The purpose of this Tech Tip is to provide diagnostic tips to prevent misdiagnosis of the following DTC?s and prevent repeat repairs. One or more of the Heated Oxygen Sensors…
- 10187260Jan 12, 2021TSB: Some 2016 ? 2021 model year Tacoma vehicles may exhibit a condition where the air conditioning system shuts down and stops blowing cool air during periods of extended engine…
- 10183281Oct 21, 2020TT: HVAC drain tube is found to be blocked/clogged.
- 10177779Jun 23, 2020TT: Repairing a 1234YF HVAC system on a gas powered (non-hybrid) Toyota vehicle may require additional compressor oil to complete the repairs. The various 1234YF compressor oils…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 2 | 2% |
| 2023 | 1 | 2% |
| 2021 | 2 | 2% |
| 2018 | 1 | 0% |
| 2014 | 1 | 1% |
| 2012 | 2 | 1% |
| 2011 | 2 | 1% |
| 2010 | 3 | 1% |
| 2009 | 8 | 2% |
| 2008 | 11 | 2% |
| 2007 | 12 | 2% |
| 2006 | 27 | 3% |
| 2005 | 14 | 2% |
| 2004 | 5 | 1% |
| 2003 | 14 | 4% |
| 2002 | 4 | 1% |
| 2001 | 3 | 1% |
| 2000 | 8 | 4% |
| 1999 | 9 | 4% |
| 1998 | 15 | 5% |
| 1997 | 1 | 1% |
| 1996 | 20 | 8% |
| 1995 | 6 | 3% |
Other parts of the 2021 Toyota Tacoma
14 complaintsBrakes
12 complaintsEngine
12 complaintsOther or unknown
12 complaintsElectrical system
9 complaintsForward collision avoidance
9 complaintsFuel system
9 complaintsAir bags
7 complaintsBody and structure
6 complaintsVehicle speed control
5 complaintsLane departure
4 complaintsSeats
3 complaints
← All problems reported for the 2021 Toyota Tacoma
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology